diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2013-01-07 15:42:38 (GMT) |
---|---|---|
committer | Linus Torvalds <torvalds@linux-foundation.org> | 2013-01-07 15:42:38 (GMT) |
commit | d0631c6e09f51e094ae5aec1eabe81cc63d78178 (patch) | |
tree | 69d8dc6fa37d2e440f37cda06c40f1800edb8a08 | |
parent | de9ac5cea33098143edd26d10ece7fe215e66623 (diff) | |
parent | 35dac27cedd14c3b6fcd4ba7bc3c31738cfd1831 (diff) | |
download | linux-d0631c6e09f51e094ae5aec1eabe81cc63d78178.tar.xz |
Merge branch 'akpm' (fixes from Andrew)
Merge emailed fixes from Andrew Morton:
"Bunch of fixes:
- delayed IPC updates. I held back on this because of some possible
outstanding bug reports, but they appear to have been addressed in
later versions
- A bunch of MAINTAINERS updates
- Yet Another RTC driver. I'd held this back while a couple of
little issues were being worked out.
I'm expecting an intrusive-but-simple patchset from Joe Perches which
splits up printk.c into kernel/printk/*. That will be a pig to
maintain for two months so if it passes testing I'd like to get it
upstream after a week or so."
* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (35 commits)
printk: fix incorrect length from print_time() when seconds > 99999
drivers/rtc/rtc-vt8500.c: fix handling of data passed in struct rtc_time
drivers/rtc/rtc-vt8500.c: correct handling of CR_24H bitfield
rtc: add RTC driver for TPS6586x
MAINTAINERS: fix drivers/staging/sm7xx/
MAINTAINERS: remove include/linux/of_pwm.h
MAINTAINERS: remove arch/*/lib/perf_event*.c
MAINTAINERS: remove drivers/mmc/host/imxmmc.*
MAINTAINERS: fix Documentation/mei/
MAINTAINERS: remove arch/x86/platform/mrst/pmu.*
MAINTAINERS: remove firmware/isci/
MAINTAINERS: fix drivers/ieee802154/
MAINTAINERS: fix .../plat-mxc/include/mach/imxfb.h
MAINTAINERS: remove drivers/video/epson1355fb.c
MAINTAINERS: fix drivers/media/usb/dvb-usb/cxusb*
MAINTAINERS: adjust for UAPI
MAINTAINERS: fix drivers/media/platform/atmel-isi.c
MAINTAINERS: fix arch/arm/mach-at91/include/mach/at_hdmac.h
MAINTAINERS: fix drivers/rtc/rtc-vt8500.c
MAINTAINERS: remove arch/arm/plat-s5p/
...
-rw-r--r-- | Documentation/sysctl/kernel.txt | 32 | ||||
-rw-r--r-- | MAINTAINERS | 199 | ||||
-rw-r--r-- | drivers/rtc/Kconfig | 8 | ||||
-rw-r--r-- | drivers/rtc/Makefile | 1 | ||||
-rw-r--r-- | drivers/rtc/rtc-tegra.c | 7 | ||||
-rw-r--r-- | drivers/rtc/rtc-tps6586x.c | 356 | ||||
-rw-r--r-- | drivers/rtc/rtc-vt8500.c | 11 | ||||
-rw-r--r-- | include/asm-generic/tlb.h | 9 | ||||
-rw-r--r-- | include/linux/ipc_namespace.h | 1 | ||||
-rw-r--r-- | include/linux/mmzone.h | 8 | ||||
-rw-r--r-- | include/linux/msg.h | 6 | ||||
-rw-r--r-- | include/uapi/linux/msg.h | 1 | ||||
-rw-r--r-- | ipc/compat.c | 46 | ||||
-rw-r--r-- | ipc/ipc_sysctl.c | 32 | ||||
-rw-r--r-- | ipc/msg.c | 123 | ||||
-rw-r--r-- | ipc/msgutil.c | 43 | ||||
-rw-r--r-- | ipc/util.c | 16 | ||||
-rw-r--r-- | ipc/util.h | 2 | ||||
-rw-r--r-- | kernel/printk.c | 5 | ||||
-rw-r--r-- | mm/memory.c | 5 | ||||
-rw-r--r-- | mm/page_alloc.c | 27 | ||||
-rw-r--r-- | mm/page_isolation.c | 26 | ||||
-rw-r--r-- | tools/testing/selftests/ipc/Makefile | 25 | ||||
-rw-r--r-- | tools/testing/selftests/ipc/msgque.c | 246 |
24 files changed, 1035 insertions, 200 deletions
diff --git a/Documentation/sysctl/kernel.txt b/Documentation/sysctl/kernel.txt index 2907ba6..ccd4258 100644 --- a/Documentation/sysctl/kernel.txt +++ b/Documentation/sysctl/kernel.txt @@ -38,6 +38,7 @@ show up in /proc/sys/kernel: - l2cr [ PPC only ] - modprobe ==> Documentation/debugging-modules.txt - modules_disabled +- msg_next_id [ sysv ipc ] - msgmax - msgmnb - msgmni @@ -62,7 +63,9 @@ show up in /proc/sys/kernel: - rtsig-max - rtsig-nr - sem +- sem_next_id [ sysv ipc ] - sg-big-buff [ generic SCSI device (sg) ] +- shm_next_id [ sysv ipc ] - shm_rmid_forced - shmall - shmmax [ sysv ipc ] @@ -320,6 +323,22 @@ to false. ============================================================== +msg_next_id, sem_next_id, and shm_next_id: + +These three toggles allows to specify desired id for next allocated IPC +object: message, semaphore or shared memory respectively. + +By default they are equal to -1, which means generic allocation logic. +Possible values to set are in range {0..INT_MAX}. + +Notes: +1) kernel doesn't guarantee, that new object will have desired id. So, +it's up to userspace, how to handle an object with "wrong" id. +2) Toggle with non-default value will be set back to -1 by kernel after +successful IPC object allocation. + +============================================================== + nmi_watchdog: Enables/Disables the NMI watchdog on x86 systems. When the value is @@ -542,6 +561,19 @@ are doing anyway :) ============================================================== +shmall: + +This parameter sets the total amount of shared memory pages that +can be used system wide. Hence, SHMALL should always be at least +ceil(shmmax/PAGE_SIZE). + +If you are not sure what the default PAGE_SIZE is on your Linux +system, you can run the following command: + +# getconf PAGE_SIZE + +============================================================== + shmmax: This value can be used to query and set the run time limit diff --git a/MAINTAINERS b/MAINTAINERS index 7a58a25..915564e 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -449,6 +449,7 @@ T: git git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6.git S: Maintained F: drivers/char/agp/ F: include/linux/agp* +F: include/uapi/linux/agp* AHA152X SCSI DRIVER M: "Juergen E. Fischer" <fischer@norbit.de> @@ -589,6 +590,7 @@ M: Jiri Kosina <jkosina@suse.cz> S: Odd fixes F: arch/x86/kernel/apm_32.c F: include/linux/apm_bios.h +F: include/uapi/linux/apm_bios.h F: drivers/char/apm-emulation.c APPLE BCM5974 MULTITOUCH DRIVER @@ -1005,7 +1007,6 @@ F: drivers/mmc/host/msm_sdcc.c F: drivers/mmc/host/msm_sdcc.h F: drivers/tty/serial/msm_serial.h F: drivers/tty/serial/msm_serial.c -F: drivers/platform/msm/ F: drivers/*/pm8???-* F: include/linux/mfd/pm8xxx/ T: git git://git.kernel.org/pub/scm/linux/kernel/git/davidb/linux-msm.git @@ -1069,7 +1070,6 @@ M: Russell King <linux@arm.linux.org.uk> L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) W: http://www.arm.linux.org.uk/ S: Maintained -F: arch/arm/common/time-acorn.c F: arch/arm/include/asm/hardware/entry-macro-iomd.S F: arch/arm/include/asm/hardware/ioc.h F: arch/arm/include/asm/hardware/iomd.h @@ -1094,7 +1094,6 @@ W: http://www.fluff.org/ben/linux/ S: Maintained F: arch/arm/plat-samsung/ F: arch/arm/plat-s3c24xx/ -F: arch/arm/plat-s5p/ F: arch/arm/mach-s3c24*/ F: arch/arm/mach-s3c64xx/ F: drivers/*/*s3c2410* @@ -1125,7 +1124,6 @@ M: Sylwester Nawrocki <s.nawrocki@samsung.com> L: linux-arm-kernel@lists.infradead.org L: linux-media@vger.kernel.org S: Maintained -F: arch/arm/plat-s5p/dev-fimc* F: arch/arm/plat-samsung/include/plat/*fimc* F: drivers/media/platform/s5p-fimc/ @@ -1136,7 +1134,7 @@ M: Jeongtae Park <jtp.park@samsung.com> L: linux-arm-kernel@lists.infradead.org L: linux-media@vger.kernel.org S: Maintained -F: arch/arm/plat-s5p/dev-mfc.c +F: arch/arm/plat-samsung/s5p-dev-mfc.c F: drivers/media/platform/s5p-mfc/ ARM/SAMSUNG S5P SERIES TV SUBSYSTEM SUPPORT @@ -1254,7 +1252,7 @@ F: drivers/video/vt8500lcdfb.* F: drivers/video/wm8505fb* F: drivers/video/wmt_ge_rops.* F: drivers/tty/serial/vt8500_serial.c -F: drivers/rtc/rtc-vt8500-c +F: drivers/rtc/rtc-vt8500.c F: drivers/mmc/host/wmt-sdmmc.c ARM/ZIPIT Z2 SUPPORT @@ -1388,6 +1386,7 @@ W: http://linux-atm.sourceforge.net S: Maintained F: drivers/atm/ F: include/linux/atm* +F: include/uapi/linux/atm* ATMEL AT91 / AT32 MCI DRIVER M: Ludovic Desroches <ludovic.desroches@atmel.com> @@ -1406,13 +1405,13 @@ L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) S: Supported F: drivers/dma/at_hdmac.c F: drivers/dma/at_hdmac_regs.h -F: arch/arm/mach-at91/include/mach/at_hdmac.h +F: include/linux/platform_data/dma-atmel.h ATMEL ISI DRIVER M: Josh Wu <josh.wu@atmel.com> L: linux-media@vger.kernel.org S: Supported -F: drivers/media/platform/atmel-isi.c +F: drivers/media/platform/soc_camera/atmel-isi.c F: include/media/atmel-isi.h ATMEL LCDFB DRIVER @@ -1467,6 +1466,7 @@ W: http://people.redhat.com/sgrubb/audit/ T: git git://git.kernel.org/pub/scm/linux/kernel/git/viro/audit-current.git S: Maintained F: include/linux/audit.h +F: include/uapi/linux/audit.h F: kernel/audit* AUXILIARY DISPLAY DRIVERS @@ -1497,7 +1497,7 @@ M: Ralf Baechle <ralf@linux-mips.org> L: linux-hams@vger.kernel.org W: http://www.linux-ax25.org/ S: Maintained -F: include/linux/ax25.h +F: include/uapi/linux/ax25.h F: include/net/ax25.h F: net/ax25/ @@ -1558,7 +1558,7 @@ M: "Tigran A. Aivazian" <tigran@aivazian.fsnet.co.uk> S: Maintained F: Documentation/filesystems/bfs.txt F: fs/bfs/ -F: include/linux/bfs_fs.h +F: include/uapi/linux/bfs_fs.h BLACKFIN ARCHITECTURE M: Mike Frysinger <vapier@gentoo.org> @@ -1655,7 +1655,7 @@ L: netdev@vger.kernel.org W: http://sourceforge.net/projects/bonding/ S: Supported F: drivers/net/bonding/ -F: include/linux/if_bonding.h +F: include/uapi/linux/if_bonding.h BROADCOM B44 10/100 ETHERNET DRIVER M: Gary Zambrano <zambrano@broadcom.com> @@ -1734,6 +1734,7 @@ L: linux-scsi@vger.kernel.org S: Supported F: block/bsg.c F: include/linux/bsg.h +F: include/uapi/linux/bsg.h BT87X AUDIO DRIVER M: Clemens Ladisch <clemens@ladisch.de> @@ -1804,7 +1805,7 @@ L: netdev@vger.kernel.org S: Supported F: Documentation/networking/caif/ F: drivers/net/caif/ -F: include/linux/caif/ +F: include/uapi/linux/caif/ F: include/net/caif/ F: net/caif/ @@ -1825,11 +1826,11 @@ W: http://gitorious.org/linux-can T: git git://gitorious.org/linux-can/linux-can-next.git S: Maintained F: net/can/ -F: include/linux/can.h F: include/linux/can/core.h -F: include/linux/can/bcm.h -F: include/linux/can/raw.h -F: include/linux/can/gw.h +F: include/uapi/linux/can.h +F: include/uapi/linux/can/bcm.h +F: include/uapi/linux/can/raw.h +F: include/uapi/linux/can/gw.h CAN NETWORK DRIVERS M: Wolfgang Grandegger <wg@grandegger.com> @@ -1840,15 +1841,16 @@ T: git git://gitorious.org/linux-can/linux-can-next.git S: Maintained F: drivers/net/can/ F: include/linux/can/dev.h -F: include/linux/can/error.h -F: include/linux/can/netlink.h F: include/linux/can/platform/ +F: include/uapi/linux/can/error.h +F: include/uapi/linux/can/netlink.h CAPABILITIES M: Serge Hallyn <serge.hallyn@canonical.com> L: linux-security-module@vger.kernel.org S: Supported F: include/linux/capability.h +F: include/uapi/linux/capability.h F: security/capability.c F: security/commoncap.c F: kernel/capability.c @@ -1861,6 +1863,7 @@ W: http://www.ibm.com/developerworks/power/cell/ S: Supported F: arch/powerpc/include/asm/cell*.h F: arch/powerpc/include/asm/spu*.h +F: arch/powerpc/include/uapi/asm/spu*.h F: arch/powerpc/oprofile/*cell* F: arch/powerpc/platforms/cell/ @@ -1909,7 +1912,7 @@ W: http://wireless.kernel.org/ T: git git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211.git T: git git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next.git S: Maintained -F: include/linux/nl80211.h +F: include/uapi/linux/nl80211.h F: include/net/cfg80211.h F: net/wireless/* X: net/wireless/wext* @@ -2012,6 +2015,7 @@ S: Maintained F: Documentation/filesystems/coda.txt F: fs/coda/ F: include/linux/coda*.h +F: include/uapi/linux/coda*.h COMMON CLK FRAMEWORK M: Mike Turquette <mturquette@linaro.org> @@ -2266,6 +2270,7 @@ W: http://www.cyclades.com/ S: Orphan F: drivers/tty/cyclades.c F: include/linux/cyclades.h +F: include/uapi/linux/cyclades.h CYCLADES PC300 DRIVER W: http://www.cyclades.com/ @@ -2323,6 +2328,7 @@ L: dccp@vger.kernel.org W: http://www.linuxfoundation.org/collaborate/workgroups/networking/dccp S: Maintained F: include/linux/dccp.h +F: include/uapi/linux/dccp.h F: include/linux/tfrc.h F: net/dccp/ @@ -2349,7 +2355,7 @@ M: Massimo Dal Zotto <dz@debian.org> W: http://www.debian.org/~dz/i8k/ S: Maintained F: drivers/char/i8k.c -F: include/linux/i8k.h +F: include/uapi/linux/i8k.h DELL SYSTEMS MANAGEMENT BASE DRIVER (dcdbas) M: Doug Warzecha <Douglas_Warzecha@dell.com> @@ -2422,6 +2428,7 @@ S: Maintained F: Documentation/filesystems/quota.txt F: fs/quota/ F: include/linux/quota*.h +F: include/uapi/linux/quota*.h DISPLAYLINK USB 2.0 FRAMEBUFFER DRIVER (UDLFB) M: Bernie Thompson <bernie@plugable.com> @@ -2528,6 +2535,7 @@ T: git git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6.git S: Maintained F: drivers/gpu/drm/ F: include/drm/ +F: include/uapi/drm/ INTEL DRM DRIVERS (excluding Poulsbo, Moorestown and derivative chipsets) M: Daniel Vetter <daniel.vetter@ffwll.ch> @@ -2537,6 +2545,7 @@ T: git git://people.freedesktop.org/~danvet/drm-intel S: Supported F: drivers/gpu/drm/i915 F: include/drm/i915* +F: include/uapi/drm/i915* DRM DRIVERS FOR EXYNOS M: Inki Dae <inki.dae@samsung.com> @@ -2548,6 +2557,7 @@ T: git git://git.kernel.org/pub/scm/linux/kernel/git/daeinki/drm-exynos.git S: Supported F: drivers/gpu/drm/exynos F: include/drm/exynos* +F: include/uapi/drm/exynos* DRM DRIVERS FOR NVIDIA TEGRA M: Thierry Reding <thierry.reding@avionic-design.de> @@ -2622,7 +2632,7 @@ W: http://github.com/mkrufky Q: http://patchwork.linuxtv.org/project/linux-media/list/ T: git git://linuxtv.org/media_tree.git S: Maintained -F: drivers/media/usb/dvb-usb-v2/cxusb* +F: drivers/media/usb/dvb-usb/cxusb* DVB_USB_CYPRESS_FIRMWARE MEDIA DRIVER M: Antti Palosaari <crope@iki.fi> @@ -2722,6 +2732,7 @@ L: netfilter-devel@vger.kernel.org W: http://ebtables.sourceforge.net/ S: Maintained F: include/linux/netfilter_bridge/ebt_*.h +F: include/uapi/linux/netfilter_bridge/ebt_*.h F: net/bridge/netfilter/ebt*.c EC100 MEDIA DRIVER @@ -2933,12 +2944,6 @@ M: Maxim Levitsky <maximlevitsky@gmail.com> S: Maintained F: drivers/media/rc/ene_ir.* -EPSON 1355 FRAMEBUFFER DRIVER -M: Christopher Hoover <ch@murgatroid.com> -M: Christopher Hoover <ch@hpl.hp.com> -S: Maintained -F: drivers/video/epson1355fb.c - EPSON S1D13XXX FRAMEBUFFER DRIVER M: Kristoffer Ericson <kristoffer.ericson@gmail.com> S: Maintained @@ -3051,6 +3056,7 @@ M: Eric Paris <eparis@redhat.com> S: Maintained F: fs/notify/fanotify/ F: include/linux/fanotify.h +F: include/uapi/linux/fanotify.h FARSYNC SYNCHRONOUS DRIVER M: Kevin Curtis <kevin.curtis@farsite.co.uk> @@ -3074,6 +3080,7 @@ F: drivers/scsi/fcoe/ F: include/scsi/fc/ F: include/scsi/libfc.h F: include/scsi/libfcoe.h +F: include/uapi/scsi/fc/ FILE LOCKING (flock() and fcntl()/lockf()) M: Matthew Wilcox <matthew@wil.cx> @@ -3081,6 +3088,8 @@ L: linux-fsdevel@vger.kernel.org S: Maintained F: include/linux/fcntl.h F: include/linux/fs.h +F: include/uapi/linux/fcntl.h +F: include/uapi/linux/fs.h F: fs/fcntl.c F: fs/locks.c @@ -3170,6 +3179,8 @@ F: Documentation/devicetree/bindings/fb/ F: drivers/video/ F: include/video/ F: include/linux/fb.h +F: include/uapi/video/ +F: include/uapi/linux/fb.h FREESCALE DIU FRAMEBUFFER DRIVER M: Timur Tabi <timur@freescale.com> @@ -3196,7 +3207,7 @@ M: Sascha Hauer <kernel@pengutronix.de> L: linux-fbdev@vger.kernel.org L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) S: Maintained -F: arch/arm/plat-mxc/include/mach/imxfb.h +F: include/linux/platform_data/video-imxfb.h F: drivers/video/imxfb.c FREESCALE SOC FS_ENET DRIVER @@ -3314,7 +3325,7 @@ L: fuse-devel@lists.sourceforge.net W: http://fuse.sourceforge.net/ S: Maintained F: fs/fuse/ -F: include/linux/fuse.h +F: include/uapi/linux/fuse.h FUTURE DOMAIN TMC-16x0 SCSI DRIVER (16-bit) M: Rik Faith <faith@cs.unc.edu> @@ -3361,6 +3372,7 @@ L: linux-arch@vger.kernel.org T: git git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic.git S: Maintained F: include/asm-generic +F: include/uapi/asm-generic GENERIC UIO DRIVER FOR PCI DEVICES M: "Michael S. Tsirkin" <mst@redhat.com> @@ -3377,7 +3389,7 @@ T: git git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-3.0-nmw.git S: Supported F: Documentation/filesystems/gfs2*.txt F: fs/gfs2/ -F: include/linux/gfs2_ondisk.h +F: include/uapi/linux/gfs2_ondisk.h GIGASET ISDN DRIVERS M: Hansjoerg Lipp <hjlipp@web.de> @@ -3387,7 +3399,7 @@ W: http://gigaset307x.sourceforge.net/ S: Maintained F: Documentation/isdn/README.gigaset F: drivers/isdn/gigaset/ -F: include/linux/gigaset_dev.h +F: include/uapi/linux/gigaset_dev.h GPIO SUBSYSTEM M: Grant Likely <grant.likely@secretlab.ca> @@ -3544,6 +3556,7 @@ S: Supported F: Documentation/scsi/hpsa.txt F: drivers/scsi/hpsa*.[ch] F: include/linux/cciss*.h +F: include/uapi/linux/cciss*.h HEWLETT-PACKARD SMART CISS RAID DRIVER (cciss) M: Mike Miller <mike.miller@hp.com> @@ -3552,6 +3565,7 @@ S: Supported F: Documentation/blockdev/cciss.txt F: drivers/block/cciss* F: include/linux/cciss_ioctl.h +F: include/uapi/linux/cciss_ioctl.h HFS FILESYSTEM L: linux-fsdevel@vger.kernel.org @@ -3586,6 +3600,7 @@ T: git git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid.git S: Maintained F: drivers/hid/ F: include/linux/hid* +F: include/uapi/linux/hid* HIGH-RESOLUTION TIMERS, CLOCKEVENTS, DYNTICKS M: Thomas Gleixner <tglx@linutronix.de> @@ -3617,7 +3632,7 @@ M: Jes Sorensen <jes@trained-monkey.org> L: linux-hippi@sunsite.dk S: Maintained F: include/linux/hippidevice.h -F: include/linux/if_hippi.h +F: include/uapi/linux/if_hippi.h F: net/802/hippi.c F: drivers/net/hippi/ @@ -3645,6 +3660,7 @@ S: Maintained F: Documentation/timers/hpet.txt F: drivers/char/hpet.c F: include/linux/hpet.h +F: include/uapi/linux/hpet.h HPET: x86 M: "Venkatesh Pallipadi (Venki)" <venki@google.com> @@ -3745,6 +3761,8 @@ F: Documentation/i2c/ F: drivers/i2c/ F: include/linux/i2c.h F: include/linux/i2c-*.h +F: include/uapi/linux/i2c.h +F: include/uapi/linux/i2c-*.h I2C-TAOS-EVM DRIVER M: Jean Delvare <khali@linux-fr.org> @@ -3860,7 +3878,7 @@ T: git git://git.kernel.org/pub/scm/linux/kernel/git/lowpan/lowpan.git S: Maintained F: net/ieee802154/ F: net/mac802154/ -F: drivers/ieee802154/ +F: drivers/net/ieee802154/ IGUANAWORKS USB IR TRANSCEIVER M: Sean Young <sean@mess.org> @@ -3911,7 +3929,7 @@ T: git git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband.git S: Supported F: Documentation/infiniband/ F: drivers/infiniband/ -F: include/linux/if_infiniband.h +F: include/uapi/linux/if_infiniband.h INOTIFY M: John McCutchan <john@johnmccutchan.com> @@ -3921,6 +3939,7 @@ S: Maintained F: Documentation/filesystems/inotify.txt F: fs/notify/inotify/ F: include/linux/inotify.h +F: include/uapi/linux/inotify.h INPUT (KEYBOARD, MOUSE, JOYSTICK, TOUCHSCREEN) DRIVERS M: Dmitry Torokhov <dmitry.torokhov@gmail.com> @@ -3931,6 +3950,7 @@ T: git git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input.git S: Maintained F: drivers/input/ F: include/linux/input.h +F: include/uapi/linux/input.h F: include/linux/input/ INPUT MULTITOUCH (MT) PROTOCOL @@ -3951,7 +3971,6 @@ L: linux-scsi@vger.kernel.org T: git git://git.code.sf.net/p/intel-sas/isci S: Supported F: drivers/scsi/isci/ -F: firmware/isci/ INTEL IDLE DRIVER M: Len Brown <lenb@kernel.org> @@ -4046,12 +4065,6 @@ F: Documentation/networking/ixgbe.txt F: Documentation/networking/ixgbevf.txt F: drivers/net/ethernet/intel/ -INTEL MRST PMU DRIVER -M: Len Brown <len.brown@intel.com> -L: linux-pm@vger.kernel.org -S: Supported -F: arch/x86/platform/mrst/pmu.* - INTEL PRO/WIRELESS 2100, 2200BG, 2915ABG NETWORK CONNECTION SUPPORT M: Stanislav Yakovlev <stas.yakovlev@gmail.com> L: linux-wireless@vger.kernel.org @@ -4080,7 +4093,7 @@ S: Supported W: http://linuxwimax.org F: Documentation/wimax/README.i2400m F: drivers/net/wimax/i2400m/ -F: include/linux/wimax/i2400m.h +F: include/uapi/linux/wimax/i2400m.h INTEL WIRELESS 3945ABG/BG, 4965AGN (iwlegacy) M: Stanislaw Gruszka <sgruszka@redhat.com> @@ -4102,9 +4115,9 @@ INTEL MANAGEMENT ENGINE (mei) M: Tomas Winkler <tomas.winkler@intel.com> L: linux-kernel@vger.kernel.org S: Supported -F: include/linux/mei.h +F: include/uapi/linux/mei.h F: drivers/misc/mei/* -F: Documentation/mei/* +F: Documentation/misc-devices/mei/* IOC3 ETHERNET DRIVER M: Ralf Baechle <ralf@linux-mips.org> @@ -4144,6 +4157,7 @@ S: Supported F: Documentation/IPMI.txt F: drivers/char/ipmi/ F: include/linux/ipmi* +F: include/uapi/linux/ipmi* IPS SCSI RAID DRIVER M: Adaptec OEM Raid Solutions <aacraid@adaptec.com> @@ -4161,7 +4175,7 @@ L: lvs-devel@vger.kernel.org S: Maintained F: Documentation/networking/ipvs-sysctl.txt F: include/net/ip_vs.h -F: include/linux/ip_vs.h +F: include/uapi/linux/ip_vs.h F: net/netfilter/ipvs/ IPWIRELESS DRIVER @@ -4174,8 +4188,8 @@ IPX NETWORK LAYER M: Arnaldo Carvalho de Melo <acme@ghostprotocols.net> L: netdev@vger.kernel.org S: Maintained -F: include/linux/ipx.h F: include/net/ipx.h +F: include/uapi/linux/ipx.h F: net/ipx/ IRDA SUBSYSTEM @@ -4238,6 +4252,8 @@ F: Documentation/isdn/ F: drivers/isdn/ F: include/linux/isdn.h F: include/linux/isdn/ +F: include/uapi/linux/isdn.h +F: include/uapi/linux/isdn/ ISDN SUBSYSTEM (Eicon active card driver) M: Armin Schindler <mac@melware.de> @@ -4278,7 +4294,7 @@ W: http://www.ivtvdriver.org S: Maintained F: Documentation/video4linux/*.ivtv F: drivers/media/pci/ivtv/ -F: include/linux/ivtv* +F: include/uapi/linux/ivtv* IX2505V MEDIA DRIVER M: Malcolm Priestley <tvboxspy@gmail.com> @@ -4316,7 +4332,7 @@ L: linux-mtd@lists.infradead.org W: http://www.linux-mtd.infradead.org/doc/jffs2.html S: Maintained F: fs/jffs2/ -F: include/linux/jffs2.h +F: include/uapi/linux/jffs2.h JOURNALLING LAYER FOR BLOCK DEVICES (JBD) M: Andrew Morton <akpm@linux-foundation.org> @@ -4399,11 +4415,13 @@ W: http://nfs.sourceforge.net/ S: Supported F: fs/nfsd/ F: include/linux/nfsd/ +F: include/uapi/linux/nfsd/ F: fs/lockd/ F: fs/nfs_common/ F: net/sunrpc/ F: include/linux/lockd/ F: include/linux/sunrpc/ +F: include/uapi/linux/sunrpc/ KERNEL VIRTUAL MACHINE (KVM) M: Marcelo Tosatti <mtosatti@redhat.com> @@ -4415,6 +4433,7 @@ F: Documentation/*/kvm.txt F: arch/*/kvm/ F: arch/*/include/asm/kvm* F: include/linux/kvm* +F: include/uapi/linux/kvm* F: virt/kvm/ KERNEL VIRTUAL MACHINE (KVM) FOR AMD-V @@ -4461,6 +4480,7 @@ W: http://kernel.org/pub/linux/utils/kernel/kexec/ L: kexec@lists.infradead.org S: Maintained F: include/linux/kexec.h +F: include/uapi/linux/kexec.h F: kernel/kexec.c KEYS/KEYRINGS: @@ -4702,6 +4722,7 @@ LLC (802.2) M: Arnaldo Carvalho de Melo <acme@ghostprotocols.net> S: Maintained F: include/linux/llc.h +F: include/uapi/linux/llc.h F: include/net/llc* F: net/llc/ @@ -4922,7 +4943,7 @@ MATROX FRAMEBUFFER DRIVER L: linux-fbdev@vger.kernel.org S: Orphan F: drivers/video/matrox/matroxfb_* -F: include/linux/matroxfb.h +F: include/uapi/linux/matroxfb.h MAX16065 HARDWARE MONITOR DRIVER M: Guenter Roeck <linux@roeck-us.net> @@ -5004,7 +5025,7 @@ T: git git://git.infradead.org/mtd-2.6.git S: Maintained F: drivers/mtd/ F: include/linux/mtd/ -F: include/mtd/ +F: include/uapi/mtd/ MICROBLAZE ARCHITECTURE M: Michal Simek <monstr@monstr.eu> @@ -5042,12 +5063,6 @@ F: Documentation/video4linux/meye.txt F: drivers/media/pci/meye/ F: include/uapi/linux/meye.h -MOTOROLA IMX MMC/SD HOST CONTROLLER INTERFACE DRIVER -M: Pavel Pisa <ppisa@pikron.com> -L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) -S: Maintained -F: drivers/mmc/host/imxmmc.* - MOXA SMARTIO/INDUSTIO/INTELLIO SERIAL CARD M: Jiri Slaby <jirislaby@gmail.com> S: Maintained @@ -5086,6 +5101,7 @@ T: git git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc.git S: Maintained F: drivers/mmc/ F: include/linux/mmc/ +F: include/uapi/linux/mmc/ MULTIMEDIA CARD (MMC) ETC. OVER SPI S: Orphan @@ -5186,6 +5202,8 @@ S: Supported F: include/linux/netfilter* F: include/linux/netfilter/ F: include/net/netfilter/ +F: include/uapi/linux/netfilter* +F: include/uapi/linux/netfilter/ F: net/*/netfilter.c F: net/*/netfilter/ F: net/netfilter/ @@ -5204,8 +5222,8 @@ M: Ralf Baechle <ralf@linux-mips.org> L: linux-hams@vger.kernel.org W: http://www.linux-ax25.org/ S: Maintained -F: include/linux/netrom.h F: include/net/netrom.h +F: include/uapi/linux/netrom.h F: net/netrom/ NETWORK BLOCK DEVICE (NBD) @@ -5214,6 +5232,7 @@ S: Maintained F: Documentation/blockdev/nbd.txt F: drivers/block/nbd.c F: include/linux/nbd.h +F: include/uapi/linux/nbd.h NETWORK DROP MONITOR M: Neil Horman <nhorman@tuxdriver.com> @@ -5235,6 +5254,9 @@ F: include/net/ F: include/linux/in.h F: include/linux/net.h F: include/linux/netdevice.h +F: include/uapi/linux/in.h +F: include/uapi/linux/net.h +F: include/uapi/linux/netdevice.h NETWORKING [IPv4/IPv6] M: "David S. Miller" <davem@davemloft.net> @@ -5280,6 +5302,7 @@ F: net/rfkill/ F: net/wireless/ F: include/net/ieee80211* F: include/linux/wireless.h +F: include/uapi/linux/wireless.h F: include/net/iw_handler.h F: drivers/net/wireless/ @@ -5299,6 +5322,8 @@ F: include/linux/fcdevice.h F: include/linux/fddidevice.h F: include/linux/hippidevice.h F: include/linux/inetdevice.h +F: include/uapi/linux/if_* +F: include/uapi/linux/netdevice.h NETXEN (1/10) GbE SUPPORT M: Sony Chacko <sony.chacko@qlogic.com> @@ -5316,8 +5341,8 @@ L: linux-wireless@vger.kernel.org L: linux-nfc@lists.01.org (moderated for non-subscribers) S: Maintained F: net/nfc/ -F: include/linux/nfc.h F: include/net/nfc/ +F: include/uapi/linux/nfc.h F: drivers/nfc/ F: include/linux/platform_data/pn544.h @@ -5334,6 +5359,8 @@ F: net/sunrpc/ F: include/linux/lockd/ F: include/linux/nfs* F: include/linux/sunrpc/ +F: include/uapi/linux/nfs* +F: include/uapi/linux/sunrpc/ NI5010 NETWORK DRIVER M: Jan-Pascal van Best <janpascal@vanbest.org> @@ -5523,6 +5550,7 @@ M: Harald Welte <laforge@gnumonks.org> S: Maintained F: drivers/char/pcmcia/cm4000_cs.c F: include/linux/cm4000_cs.h +F: include/uapi/linux/cm4000_cs.h OMNIKEY CARDMAN 4040 DRIVER M: Harald Welte <laforge@gnumonks.org> @@ -5681,7 +5709,7 @@ S: Orphan F: drivers/parport/ F: include/linux/parport*.h F: drivers/char/ppdev.c -F: include/linux/ppdev.h +F: include/uapi/linux/ppdev.h PARAVIRT_OPS INTERFACE M: Jeremy Fitzhardinge <jeremy@goop.org> @@ -5822,11 +5850,11 @@ T: git git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git perf/core S: Supported F: kernel/events/* F: include/linux/perf_event.h +F: include/uapi/linux/perf_event.h F: arch/*/kernel/perf_event*.c F: arch/*/kernel/*/perf_event*.c F: arch/*/kernel/*/*/perf_event*.c F: arch/*/include/asm/perf_event.h -F: arch/*/lib/perf_event*.c F: arch/*/kernel/perf_callchain.c F: tools/perf/ @@ -5835,6 +5863,7 @@ M: Christoph Hellwig <hch@infradead.org> L: linux-abi-devel@lists.sourceforge.net S: Maintained F: include/linux/personality.h +F: include/uapi/linux/personality.h PHONET PROTOCOL M: Remi Denis-Courmont <courmisch@gmail.com> @@ -5842,6 +5871,7 @@ S: Supported F: Documentation/networking/phonet.txt F: include/linux/phonet.h F: include/net/phonet/ +F: include/uapi/linux/phonet.h F: net/phonet/ PHRAM MTD DRIVER @@ -5890,6 +5920,7 @@ M: Jiri Kosina <jkosina@suse.cz> S: Maintained F: drivers/block/pktcdvd.c F: include/linux/pktcdvd.h +F: include/uapi/linux/pktcdvd.h PKUNITY SOC DRIVERS M: Guan Xuetao <gxt@mprc.pku.edu.cn> @@ -5964,7 +5995,7 @@ PPP OVER ATM (RFC 2364) M: Mitchell Blank Jr <mitch@sfgoth.com> S: Maintained F: net/atm/pppoatm.c -F: include/linux/atmppp.h +F: include/uapi/linux/atmppp.h PPP OVER ETHERNET M: Michal Ostrowski <mostrows@earthlink.net> @@ -5977,6 +6008,7 @@ M: James Chapman <jchapman@katalix.com> S: Maintained F: net/l2tp/l2tp_ppp.c F: include/linux/if_pppol2tp.h +F: include/uapi/linux/if_pppol2tp.h PPS SUPPORT M: Rodolfo Giometti <giometti@enneenne.com> @@ -6074,6 +6106,7 @@ F: include/asm-generic/syscall.h F: include/linux/ptrace.h F: include/linux/regset.h F: include/linux/tracehook.h +F: include/uapi/linux/ptrace.h F: kernel/ptrace.c PVRUSB2 VIDEO4LINUX DRIVER @@ -6102,7 +6135,6 @@ T: git git://gitorious.org/linux-pwm/linux-pwm.git F: Documentation/pwm.txt F: Documentation/devicetree/bindings/pwm/ F: include/linux/pwm.h -F: include/linux/of_pwm.h F: drivers/pwm/ F: drivers/video/backlight/pwm_bl.c F: include/linux/pwm_backlight.h @@ -6198,8 +6230,8 @@ M: Anders Larsen <al@alarsen.net> W: http://www.alarsen.net/linux/qnx4fs/ S: Maintained F: fs/qnx4/ -F: include/linux/qnx4_fs.h -F: include/linux/qnxtypes.h +F: include/uapi/linux/qnx4_fs.h +F: include/uapi/linux/qnxtypes.h QT1010 MEDIA DRIVER M: Antti Palosaari <crope@iki.fi> @@ -6233,7 +6265,7 @@ M: Benjamin Herrenschmidt <benh@kernel.crashing.org> L: linux-fbdev@vger.kernel.org S: Maintained F: drivers/video/aty/radeon* -F: include/linux/radeonfb.h +F: include/uapi/linux/radeonfb.h RADIOSHARK RADIO DRIVER M: Hans de Goede <hdegoede@redhat.com> @@ -6334,6 +6366,7 @@ S: Maintained F: Documentation/rtc.txt F: drivers/rtc/ F: include/linux/rtc.h +F: include/uapi/linux/rtc.h REISERFS FILE SYSTEM L: reiserfs-devel@vger.kernel.org @@ -6388,8 +6421,8 @@ M: Ralf Baechle <ralf@linux-mips.org> L: linux-hams@vger.kernel.org W: http://www.linux-ax25.org/ S: Maintained -F: include/linux/rose.h F: include/net/rose.h +F: include/uapi/linux/rose.h F: net/rose/ RTL2830 MEDIA DRIVER @@ -6566,6 +6599,8 @@ S: Supported F: include/linux/clocksource.h F: include/linux/time.h F: include/linux/timex.h +F: include/uapi/linux/time.h +F: include/uapi/linux/timex.h F: kernel/time/clocksource.c F: kernel/time/time*.c F: kernel/time/ntp.c @@ -6590,6 +6625,7 @@ T: git git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git sched/core S: Maintained F: kernel/sched/ F: include/linux/sched.h +F: include/uapi/linux/sched.h SCORE ARCHITECTURE M: Chen Liqin <liqin.chen@sunplusct.com> @@ -6743,7 +6779,7 @@ SENSABLE PHANTOM M: Jiri Slaby <jirislaby@gmail.com> S: Maintained F: drivers/misc/phantom.c -F: include/linux/phantom.h +F: include/uapi/linux/phantom.h SERIAL ATA (SATA) SUBSYSTEM M: Jeff Garzik <jgarzik@pobox.com> @@ -7001,6 +7037,7 @@ L: linux-raid@vger.kernel.org S: Supported F: drivers/md/ F: include/linux/raid/ +F: include/uapi/linux/raid/ SONIC NETWORK DRIVER M: Thomas Bogendoerfer <tsbogend@alpha.franken.de> @@ -7041,6 +7078,7 @@ T: git git://git.alsa-project.org/alsa-kernel.git S: Maintained F: Documentation/sound/ F: include/sound/ +F: include/uapi/sound/ F: sound/ SOUND - SOC LAYER / DYNAMIC AUDIO POWER MANAGEMENT (ASoC) @@ -7141,6 +7179,7 @@ S: Maintained F: Documentation/spi/ F: drivers/spi/ F: include/linux/spi/ +F: include/uapi/linux/spi/ SPIDERNET NETWORK DRIVER for CELL M: Ishizaki Kou <kou.ishizaki@toshiba.co.jp> @@ -7277,7 +7316,7 @@ F: drivers/staging/rtl8712/ STAGING - SILICON MOTION SM7XX FRAME BUFFER DRIVER M: Teddy Wang <teddy.wang@siliconmotion.com.cn> S: Odd Fixes -F: drivers/staging/sm7xx/ +F: drivers/staging/sm7xxfb/ STAGING - SOFTLOGIC 6x10 MPEG CODEC M: Ben Collins <bcollins@bluecherry.net> @@ -7403,8 +7442,8 @@ TC CLASSIFIER M: Jamal Hadi Salim <jhs@mojatatu.com> L: netdev@vger.kernel.org S: Maintained -F: include/linux/pkt_cls.h F: include/net/pkt_cls.h +F: include/uapi/linux/pkt_cls.h F: net/sched/ TCP LOW PRIORITY MODULE @@ -7496,6 +7535,7 @@ L: netdev@vger.kernel.org S: Supported F: drivers/net/team/ F: include/linux/if_team.h +F: include/uapi/linux/if_team.h TECHNOTREND USB IR RECEIVER M: Sean Young <sean@mess.org> @@ -7594,7 +7634,7 @@ L: netdev@vger.kernel.org (core kernel code) L: tipc-discussion@lists.sourceforge.net (user apps, general discussion) W: http://tipc.sourceforge.net/ S: Maintained -F: include/linux/tipc*.h +F: include/uapi/linux/tipc*.h F: net/tipc/ TILE ARCHITECTURE @@ -7644,6 +7684,7 @@ W: http://www.buzzard.org.uk/toshiba/ S: Maintained F: drivers/char/toshiba.c F: include/linux/toshiba.h +F: include/uapi/linux/toshiba.h TMIO MMC DRIVER M: Guennadi Liakhovetski <g.liakhovetski@gmx.de> @@ -7711,6 +7752,9 @@ F: drivers/tty/serial/serial_core.c F: include/linux/serial_core.h F: include/linux/serial.h F: include/linux/tty.h +F: include/uapi/linux/serial_core.h +F: include/uapi/linux/serial.h +F: include/uapi/linux/tty.h TUA9001 MEDIA DRIVER M: Antti Palosaari <crope@iki.fi> @@ -7790,7 +7834,7 @@ M: David Herrmann <dh.herrmann@googlemail.com> L: linux-input@vger.kernel.org S: Maintained F: drivers/hid/uhid.c -F: include/linux/uhid.h +F: include/uapi/linux/uhid.h ULTRA-WIDEBAND (UWB) SUBSYSTEM: L: linux-usb@vger.kernel.org @@ -7819,6 +7863,7 @@ S: Maintained F: Documentation/cdrom/ F: drivers/cdrom/cdrom.c F: include/linux/cdrom.h +F: include/uapi/linux/cdrom.h UNIVERSAL FLASH STORAGE HOST CONTROLLER DRIVER M: Vinayak Holikatti <vinholikatti@gmail.com> @@ -7836,7 +7881,7 @@ T: git git://git.infradead.org/ubi-2.6.git S: Maintained F: drivers/mtd/ubi/ F: include/linux/mtd/ubi.h -F: include/mtd/ubi-user.h +F: include/uapi/mtd/ubi-user.h UNSORTED BLOCK IMAGES (UBI) Fastmap M: Richard Weinberger <richard@nod.at> @@ -7870,7 +7915,7 @@ M: Oliver Neukum <oliver@neukum.org> L: linux-usb@vger.kernel.org S: Maintained F: drivers/net/usb/cdc_*.c -F: include/linux/usb/cdc.h +F: include/uapi/linux/usb/cdc.h USB CYPRESS C67X00 DRIVER M: Peter Korsgaard <jacmet@sunsite.dk> @@ -8191,6 +8236,7 @@ S: Maintained F: Documentation/vfio.txt F: drivers/vfio/ F: include/linux/vfio.h +F: include/uapi/linux/vfio.h VIDEOBUF2 FRAMEWORK M: Pawel Osciak <pawel@osciak.com> @@ -8207,6 +8253,7 @@ L: virtualization@lists.linux-foundation.org S: Maintained F: drivers/char/virtio_console.c F: include/linux/virtio_console.h +F: include/uapi/linux/virtio_console.h VIRTIO CORE, NET AND BLOCK DRIVERS M: Rusty Russell <rusty@rustcorp.com.au> @@ -8225,7 +8272,7 @@ L: virtualization@lists.linux-foundation.org L: netdev@vger.kernel.org S: Maintained F: drivers/vhost/ -F: include/linux/vhost.h +F: include/uapi/linux/vhost.h VIA RHINE NETWORK DRIVER M: Roger Luethi <rl@hellgate.ch> @@ -8365,6 +8412,7 @@ S: Maintained F: Documentation/watchdog/ F: drivers/watchdog/ F: include/linux/watchdog.h +F: include/uapi/linux/watchdog.h WD7000 SCSI DRIVER M: Miroslav Zagorac <zaga@fly.cc.fer.hr> @@ -8390,9 +8438,9 @@ L: wimax@linuxwimax.org S: Supported W: http://linuxwimax.org F: Documentation/wimax/README.wimax -F: include/linux/wimax.h F: include/linux/wimax/debug.h F: include/net/wimax.h +F: include/uapi/linux/wimax.h F: net/wimax/ WISTRON LAPTOP BUTTON DRIVER @@ -8510,6 +8558,7 @@ F: drivers/*/xen-*front.c F: drivers/xen/ F: arch/x86/include/asm/xen/ F: include/xen/ +F: include/uapi/xen/ XEN HYPERVISOR ARM M: Stefano Stabellini <stefano.stabellini@eu.citrix.com> diff --git a/drivers/rtc/Kconfig b/drivers/rtc/Kconfig index d0cea02..923a9da 100644 --- a/drivers/rtc/Kconfig +++ b/drivers/rtc/Kconfig @@ -352,6 +352,14 @@ config RTC_DRV_TWL4030 This driver can also be built as a module. If so, the module will be called rtc-twl. +config RTC_DRV_TPS6586X + tristate "TI TPS6586X RTC driver" + depends on MFD_TPS6586X + help + TI Power Managment IC TPS6586X supports RTC functionality + along with alarm. This driver supports the RTC driver for + the TPS6586X RTC module. + config RTC_DRV_TPS65910 tristate "TI TPS65910 RTC driver" depends on RTC_CLASS && MFD_TPS65910 diff --git a/drivers/rtc/Makefile b/drivers/rtc/Makefile index c3f62c8..4418ef3 100644 --- a/drivers/rtc/Makefile +++ b/drivers/rtc/Makefile @@ -111,6 +111,7 @@ obj-$(CONFIG_RTC_DRV_TEGRA) += rtc-tegra.o obj-$(CONFIG_RTC_DRV_TEST) += rtc-test.o obj-$(CONFIG_RTC_DRV_TILE) += rtc-tile.o obj-$(CONFIG_RTC_DRV_TWL4030) += rtc-twl.o +obj-$(CONFIG_RTC_DRV_TPS6586X) += rtc-tps6586x.o obj-$(CONFIG_RTC_DRV_TPS65910) += rtc-tps65910.o obj-$(CONFIG_RTC_DRV_TX4939) += rtc-tx4939.o obj-$(CONFIG_RTC_DRV_V3020) += rtc-v3020.o diff --git a/drivers/rtc/rtc-tegra.c b/drivers/rtc/rtc-tegra.c index 5ba2f75..c84ea66 100644 --- a/drivers/rtc/rtc-tegra.c +++ b/drivers/rtc/rtc-tegra.c @@ -303,6 +303,12 @@ static struct rtc_class_ops tegra_rtc_ops = { .alarm_irq_enable = tegra_rtc_alarm_irq_enable, }; +static const struct of_device_id tegra_rtc_dt_match[] = { + { .compatible = "nvidia,tegra20-rtc", }, + {} +}; +MODULE_DEVICE_TABLE(of, tegra_rtc_dt_match); + static int tegra_rtc_probe(struct platform_device *pdev) { struct tegra_rtc_info *info; @@ -440,6 +446,7 @@ static struct platform_driver tegra_rtc_driver = { .driver = { .name = "tegra_rtc", .owner = THIS_MODULE, + .of_match_table = tegra_rtc_dt_match, }, #ifdef CONFIG_PM .suspend = tegra_rtc_suspend, diff --git a/drivers/rtc/rtc-tps6586x.c b/drivers/rtc/rtc-tps6586x.c new file mode 100644 index 0000000..70f61b8 --- /dev/null +++ b/drivers/rtc/rtc-tps6586x.c @@ -0,0 +1,356 @@ +/* + * rtc-tps6586x.c: RTC driver for TI PMIC TPS6586X + * + * Copyright (c) 2012, NVIDIA Corporation. + * + * Author: Laxman Dewangan <ldewangan@nvidia.com> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation version 2. + * + * This program is distributed "as is" WITHOUT ANY WARRANTY of any kind, + * whether express or implied; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + * 02111-1307, USA + */ + +#include <linux/device.h> +#include <linux/err.h> +#include <linux/init.h> +#include <linux/kernel.h> +#include <linux/mfd/tps6586x.h> +#include <linux/module.h> +#include <linux/platform_device.h> +#include <linux/pm_runtime.h> +#include <linux/rtc.h> +#include <linux/slab.h> + +#define RTC_CTRL 0xc0 +#define POR_RESET_N BIT(7) +#define OSC_SRC_SEL BIT(6) +#define RTC_ENABLE BIT(5) /* enables alarm */ +#define RTC_BUF_ENABLE BIT(4) /* 32 KHz buffer enable */ +#define PRE_BYPASS BIT(3) /* 0=1KHz or 1=32KHz updates */ +#define CL_SEL_MASK (BIT(2)|BIT(1)) +#define CL_SEL_POS 1 +#define RTC_ALARM1_HI 0xc1 +#define RTC_COUNT4 0xc6 + +/* start a PMU RTC access by reading the register prior to the RTC_COUNT4 */ +#define RTC_COUNT4_DUMMYREAD 0xc5 + +/*only 14-bits width in second*/ +#define ALM1_VALID_RANGE_IN_SEC 0x3FFF + +#define TPS6586X_RTC_CL_SEL_1_5PF 0x0 +#define TPS6586X_RTC_CL_SEL_6_5PF 0x1 +#define TPS6586X_RTC_CL_SEL_7_5PF 0x2 +#define TPS6586X_RTC_CL_SEL_12_5PF 0x3 + +struct tps6586x_rtc { + struct device *dev; + struct rtc_device *rtc; + int irq; + bool irq_en; + unsigned long long epoch_start; +}; + +static inline struct device *to_tps6586x_dev(struct device *dev) +{ + return dev->parent; +} + +static int tps6586x_rtc_read_time(struct device *dev, struct rtc_time *tm) +{ + struct tps6586x_rtc *rtc = dev_get_drvdata(dev); + struct device *tps_dev = to_tps6586x_dev(dev); + unsigned long long ticks = 0; + unsigned long seconds; + u8 buff[6]; + int ret; + int i; + + ret = tps6586x_reads(tps_dev, RTC_COUNT4_DUMMYREAD, sizeof(buff), buff); + if (ret < 0) { + dev_err(dev, "read counter failed with err %d\n", ret); + return ret; + } + + for (i = 1; i < sizeof(buff); i++) { + ticks <<= 8; + ticks |= buff[i]; + } + + seconds = ticks >> 10; + seconds += rtc->epoch_start; + rtc_time_to_tm(seconds, tm); + return rtc_valid_tm(tm); +} + +static int tps6586x_rtc_set_time(struct device *dev, struct rtc_time *tm) +{ + struct tps6586x_rtc *rtc = dev_get_drvdata(dev); + struct device *tps_dev = to_tps6586x_dev(dev); + unsigned long long ticks; + unsigned long seconds; + u8 buff[5]; + int ret; + + rtc_tm_to_time(tm, &seconds); + if (seconds < rtc->epoch_start) { + dev_err(dev, "requested time unsupported\n"); + return -EINVAL; + } + seconds -= rtc->epoch_start; + + ticks = (unsigned long long)seconds << 10; + buff[0] = (ticks >> 32) & 0xff; + buff[1] = (ticks >> 24) & 0xff; + buff[2] = (ticks >> 16) & 0xff; + buff[3] = (ticks >> 8) & 0xff; + buff[4] = ticks & 0xff; + + /* Disable RTC before changing time */ + ret = tps6586x_clr_bits(tps_dev, RTC_CTRL, RTC_ENABLE); + if (ret < 0) { + dev_err(dev, "failed to clear RTC_ENABLE\n"); + return ret; + } + + ret = tps6586x_writes(tps_dev, RTC_COUNT4, sizeof(buff), buff); + if (ret < 0) { + dev_err(dev, "failed to program new time\n"); + return ret; + } + + /* Enable RTC */ + ret = tps6586x_set_bits(tps_dev, RTC_CTRL, RTC_ENABLE); + if (ret < 0) { + dev_err(dev, "failed to set RTC_ENABLE\n"); + return ret; + } + return 0; +} + +static int tps6586x_rtc_alarm_irq_enable(struct device *dev, + unsigned int enabled) +{ + struct tps6586x_rtc *rtc = dev_get_drvdata(dev); + + if (enabled && !rtc->irq_en) { + enable_irq(rtc->irq); + rtc->irq_en = true; + } else if (!enabled && rtc->irq_en) { + disable_irq(rtc->irq); + rtc->irq_en = false; + } + return 0; +} + +static int tps6586x_rtc_set_alarm(struct device *dev, struct rtc_wkalrm *alrm) +{ + struct tps6586x_rtc *rtc = dev_get_drvdata(dev); + struct device *tps_dev = to_tps6586x_dev(dev); + unsigned long seconds; + unsigned long ticks; + unsigned long rtc_current_time; + unsigned long long rticks = 0; + u8 buff[3]; + u8 rbuff[6]; + int ret; + int i; + + rtc_tm_to_time(&alrm->time, &seconds); + + if (alrm->enabled && (seconds < rtc->epoch_start)) { + dev_err(dev, "can't set alarm to requested time\n"); + return -EINVAL; + } + + ret = tps6586x_rtc_alarm_irq_enable(dev, alrm->enabled); + if (ret < 0) { + dev_err(dev, "can't set alarm irq, err %d\n", ret); + return ret; + } + + seconds -= rtc->epoch_start; + ret = tps6586x_reads(tps_dev, RTC_COUNT4_DUMMYREAD, + sizeof(rbuff), rbuff); + if (ret < 0) { + dev_err(dev, "read counter failed with err %d\n", ret); + return ret; + } + + for (i = 1; i < sizeof(rbuff); i++) { + rticks <<= 8; + rticks |= rbuff[i]; + } + + rtc_current_time = rticks >> 10; + if ((seconds - rtc_current_time) > ALM1_VALID_RANGE_IN_SEC) + seconds = rtc_current_time - 1; + + ticks = (unsigned long long)seconds << 10; + buff[0] = (ticks >> 16) & 0xff; + buff[1] = (ticks >> 8) & 0xff; + buff[2] = ticks & 0xff; + + ret = tps6586x_writes(tps_dev, RTC_ALARM1_HI, sizeof(buff), buff); + if (ret) + dev_err(dev, "programming alarm failed with err %d\n", ret); + + return ret; +} + +static int tps6586x_rtc_read_alarm(struct device *dev, struct rtc_wkalrm *alrm) +{ + struct tps6586x_rtc *rtc = dev_get_drvdata(dev); + struct device *tps_dev = to_tps6586x_dev(dev); + unsigned long ticks; + unsigned long seconds; + u8 buff[3]; + int ret; + + ret = tps6586x_reads(tps_dev, RTC_ALARM1_HI, sizeof(buff), buff); + if (ret) { + dev_err(dev, "read RTC_ALARM1_HI failed with err %d\n", ret); + return ret; + } + + ticks = (buff[0] << 16) | (buff[1] << 8) | buff[2]; + seconds = ticks >> 10; + seconds += rtc->epoch_start; + + rtc_time_to_tm(seconds, &alrm->time); + return 0; +} + +static const struct rtc_class_ops tps6586x_rtc_ops = { + .read_time = tps6586x_rtc_read_time, + .set_time = tps6586x_rtc_set_time, + .set_alarm = tps6586x_rtc_set_alarm, + .read_alarm = tps6586x_rtc_read_alarm, + .alarm_irq_enable = tps6586x_rtc_alarm_irq_enable, +}; + +static irqreturn_t tps6586x_rtc_irq(int irq, void *data) +{ + struct tps6586x_rtc *rtc = data; + + rtc_update_irq(rtc->rtc, 1, RTC_IRQF | RTC_AF); + return IRQ_HANDLED; +} + +static int tps6586x_rtc_probe(struct platform_device *pdev) +{ + struct device *tps_dev = to_tps6586x_dev(&pdev->dev); + struct tps6586x_rtc *rtc; + int ret; + + rtc = devm_kzalloc(&pdev->dev, sizeof(*rtc), GFP_KERNEL); + if (!rtc) + return -ENOMEM; + + rtc->dev = &pdev->dev; + rtc->irq = platform_get_irq(pdev, 0); + + /* Set epoch start as 00:00:00:01:01:2009 */ + rtc->epoch_start = mktime(2009, 1, 1, 0, 0, 0); + + /* 1 kHz tick mode, enable tick counting */ + ret = tps6586x_update(tps_dev, RTC_CTRL, + RTC_ENABLE | OSC_SRC_SEL | + ((TPS6586X_RTC_CL_SEL_1_5PF << CL_SEL_POS) & CL_SEL_MASK), + RTC_ENABLE | OSC_SRC_SEL | PRE_BYPASS | CL_SEL_MASK); + if (ret < 0) { + dev_err(&pdev->dev, "unable to start counter\n"); + return ret; + } + + platform_set_drvdata(pdev, rtc); + rtc->rtc = rtc_device_register(dev_name(&pdev->dev), &pdev->dev, + &tps6586x_rtc_ops, THIS_MODULE); + if (IS_ERR(rtc->rtc)) { + ret = PTR_ERR(rtc->rtc); + dev_err(&pdev->dev, "RTC device register: ret %d\n", ret); + goto fail_rtc_register; + } + + ret = request_threaded_irq(rtc->irq, NULL, tps6586x_rtc_irq, + IRQF_ONESHOT | IRQF_EARLY_RESUME, + dev_name(&pdev->dev), rtc); + if (ret < 0) { + dev_err(&pdev->dev, "request IRQ(%d) failed with ret %d\n", + rtc->irq, ret); + goto fail_req_irq; + } + disable_irq(rtc->irq); + device_set_wakeup_capable(&pdev->dev, 1); + return 0; + +fail_req_irq: + rtc_device_unregister(rtc->rtc); + +fail_rtc_register: + tps6586x_update(tps_dev, RTC_CTRL, 0, + RTC_ENABLE | OSC_SRC_SEL | PRE_BYPASS | CL_SEL_MASK); + return ret; +}; + +static int tps6586x_rtc_remove(struct platform_device *pdev) +{ + struct tps6586x_rtc *rtc = platform_get_drvdata(pdev); + struct device *tps_dev = to_tps6586x_dev(&pdev->dev); + + tps6586x_update(tps_dev, RTC_CTRL, 0, + RTC_ENABLE | OSC_SRC_SEL | PRE_BYPASS | CL_SEL_MASK); + rtc_device_unregister(rtc->rtc); + free_irq(rtc->irq, rtc); + return 0; +} + +#ifdef CONFIG_PM_SLEEP +static int tps6586x_rtc_suspend(struct device *dev) +{ + struct tps6586x_rtc *rtc = dev_get_drvdata(dev); + + if (device_may_wakeup(dev)) + enable_irq_wake(rtc->irq); + return 0; +} + +static int tps6586x_rtc_resume(struct device *dev) +{ + struct tps6586x_rtc *rtc = dev_get_drvdata(dev); + + if (device_may_wakeup(dev)) + disable_irq_wake(rtc->irq); + return 0; +} +#endif + +static const struct dev_pm_ops tps6586x_pm_ops = { + SET_SYSTEM_SLEEP_PM_OPS(tps6586x_rtc_suspend, tps6586x_rtc_resume) +}; + +static struct platform_driver tps6586x_rtc_driver = { + .driver = { + .name = "tps6586x-rtc", + .owner = THIS_MODULE, + .pm = &tps6586x_pm_ops, + }, + .probe = tps6586x_rtc_probe, + .remove = tps6586x_rtc_remove, +}; +module_platform_driver(tps6586x_rtc_driver); + +MODULE_ALIAS("platform:rtc-tps6586x"); +MODULE_DESCRIPTION("TI TPS6586x RTC driver"); +MODULE_AUTHOR("Laxman dewangan <ldewangan@nvidia.com>"); +MODULE_LICENSE("GPL v2"); diff --git a/drivers/rtc/rtc-vt8500.c b/drivers/rtc/rtc-vt8500.c index fd14187..00c930f 100644 --- a/drivers/rtc/rtc-vt8500.c +++ b/drivers/rtc/rtc-vt8500.c @@ -70,7 +70,7 @@ | ALARM_SEC_BIT) #define VT8500_RTC_CR_ENABLE (1 << 0) /* Enable RTC */ -#define VT8500_RTC_CR_24H (1 << 1) /* 24h time format */ +#define VT8500_RTC_CR_12H (1 << 1) /* 12h time format */ #define VT8500_RTC_CR_SM_ENABLE (1 << 2) /* Enable periodic irqs */ #define VT8500_RTC_CR_SM_SEC (1 << 3) /* 0: 1Hz/60, 1: 1Hz */ #define VT8500_RTC_CR_CALIB (1 << 4) /* Enable calibration */ @@ -119,7 +119,7 @@ static int vt8500_rtc_read_time(struct device *dev, struct rtc_time *tm) tm->tm_min = bcd2bin((time & TIME_MIN_MASK) >> TIME_MIN_S); tm->tm_hour = bcd2bin((time & TIME_HOUR_MASK) >> TIME_HOUR_S); tm->tm_mday = bcd2bin(date & DATE_DAY_MASK); - tm->tm_mon = bcd2bin((date & DATE_MONTH_MASK) >> DATE_MONTH_S); + tm->tm_mon = bcd2bin((date & DATE_MONTH_MASK) >> DATE_MONTH_S) - 1; tm->tm_year = bcd2bin((date & DATE_YEAR_MASK) >> DATE_YEAR_S) + ((date >> DATE_CENTURY_S) & 1 ? 200 : 100); tm->tm_wday = (time & TIME_DOW_MASK) >> TIME_DOW_S; @@ -138,8 +138,9 @@ static int vt8500_rtc_set_time(struct device *dev, struct rtc_time *tm) } writel((bin2bcd(tm->tm_year - 100) << DATE_YEAR_S) - | (bin2bcd(tm->tm_mon) << DATE_MONTH_S) - | (bin2bcd(tm->tm_mday)), + | (bin2bcd(tm->tm_mon + 1) << DATE_MONTH_S) + | (bin2bcd(tm->tm_mday)) + | ((tm->tm_year >= 200) << DATE_CENTURY_S), vt8500_rtc->regbase + VT8500_RTC_DS); writel((bin2bcd(tm->tm_wday) << TIME_DOW_S) | (bin2bcd(tm->tm_hour) << TIME_HOUR_S) @@ -247,7 +248,7 @@ static int vt8500_rtc_probe(struct platform_device *pdev) } /* Enable RTC and set it to 24-hour mode */ - writel(VT8500_RTC_CR_ENABLE | VT8500_RTC_CR_24H, + writel(VT8500_RTC_CR_ENABLE, vt8500_rtc->regbase + VT8500_RTC_CR); vt8500_rtc->rtc = rtc_device_register("vt8500-rtc", &pdev->dev, diff --git a/include/asm-generic/tlb.h b/include/asm-generic/tlb.h index ed6642a..25f01d0 100644 --- a/include/asm-generic/tlb.h +++ b/include/asm-generic/tlb.h @@ -78,6 +78,14 @@ struct mmu_gather_batch { #define MAX_GATHER_BATCH \ ((PAGE_SIZE - sizeof(struct mmu_gather_batch)) / sizeof(void *)) +/* + * Limit the maximum number of mmu_gather batches to reduce a risk of soft + * lockups for non-preemptible kernels on huge machines when a lot of memory + * is zapped during unmapping. + * 10K pages freed at once should be safe even without a preemption point. + */ +#define MAX_GATHER_BATCH_COUNT (10000UL/MAX_GATHER_BATCH) + /* struct mmu_gather is an opaque type used by the mm code for passing around * any data needed by arch specific code for tlb_remove_page. */ @@ -96,6 +104,7 @@ struct mmu_gather { struct mmu_gather_batch *active; struct mmu_gather_batch local; struct page *__pages[MMU_GATHER_BUNDLE]; + unsigned int batch_count; }; #define HAVE_GENERIC_MMU_GATHER diff --git a/include/linux/ipc_namespace.h b/include/linux/ipc_namespace.h index fe77197..ae221a7 100644 --- a/include/linux/ipc_namespace.h +++ b/include/linux/ipc_namespace.h @@ -24,6 +24,7 @@ struct ipc_ids { unsigned short seq_max; struct rw_semaphore rw_mutex; struct idr ipcs_idr; + int next_id; }; struct ipc_namespace { diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h index 4bec5be..73b64a3 100644 --- a/include/linux/mmzone.h +++ b/include/linux/mmzone.h @@ -503,14 +503,6 @@ struct zone { * rarely used fields: */ const char *name; -#ifdef CONFIG_MEMORY_ISOLATION - /* - * the number of MIGRATE_ISOLATE *pageblock*. - * We need this for free page counting. Look at zone_watermark_ok_safe. - * It's protected by zone->lock - */ - int nr_pageblock_isolate; -#endif } ____cacheline_internodealigned_in_smp; typedef enum { diff --git a/include/linux/msg.h b/include/linux/msg.h index 7a4b9e9..391af8d 100644 --- a/include/linux/msg.h +++ b/include/linux/msg.h @@ -34,7 +34,9 @@ struct msg_queue { /* Helper routines for sys_msgsnd and sys_msgrcv */ extern long do_msgsnd(int msqid, long mtype, void __user *mtext, size_t msgsz, int msgflg); -extern long do_msgrcv(int msqid, long *pmtype, void __user *mtext, - size_t msgsz, long msgtyp, int msgflg); +extern long do_msgrcv(int msqid, void __user *buf, size_t bufsz, long msgtyp, + int msgflg, + long (*msg_fill)(void __user *, struct msg_msg *, + size_t)); #endif /* _LINUX_MSG_H */ diff --git a/include/uapi/linux/msg.h b/include/uapi/linux/msg.h index 78dbd2f..22d95c6 100644 --- a/include/uapi/linux/msg.h +++ b/include/uapi/linux/msg.h @@ -10,6 +10,7 @@ /* msgrcv options */ #define MSG_NOERROR 010000 /* no error if message is too big */ #define MSG_EXCEPT 020000 /* recv any msg except of specified type.*/ +#define MSG_COPY 040000 /* copy (not remove) all queue messages */ /* Obsolete, used only for backwards compatibility and libc5 compiles */ struct msqid_ds { diff --git a/ipc/compat.c b/ipc/compat.c index ad9518e..2547f29 100644 --- a/ipc/compat.c +++ b/ipc/compat.c @@ -306,6 +306,20 @@ static long do_compat_semctl(int first, int second, int third, u32 pad) return err; } +long compat_do_msg_fill(void __user *dest, struct msg_msg *msg, size_t bufsz) +{ + struct compat_msgbuf __user *msgp = dest; + size_t msgsz; + + if (put_user(msg->m_type, &msgp->mtype)) + return -EFAULT; + + msgsz = (bufsz > msg->m_ts) ? msg->m_ts : bufsz; + if (store_msg(msgp->mtext, msg, msgsz)) + return -EFAULT; + return msgsz; +} + #ifdef CONFIG_ARCH_WANT_OLD_COMPAT_IPC long compat_sys_semctl(int first, int second, int third, void __user *uptr) { @@ -337,10 +351,6 @@ long compat_sys_msgsnd(int first, int second, int third, void __user *uptr) long compat_sys_msgrcv(int first, int second, int msgtyp, int third, int version, void __user *uptr) { - struct compat_msgbuf __user *up; - long type; - int err; - if (first < 0) return -EINVAL; if (second < 0) @@ -348,23 +358,15 @@ long compat_sys_msgrcv(int first, int second, int msgtyp, int third, if (!version) { struct compat_ipc_kludge ipck; - err = -EINVAL; if (!uptr) - goto out; - err = -EFAULT; + return -EINVAL; if (copy_from_user (&ipck, uptr, sizeof(ipck))) - goto out; + return -EFAULT; uptr = compat_ptr(ipck.msgp); msgtyp = ipck.msgtyp; } - up = uptr; - err = do_msgrcv(first, &type, up->mtext, second, msgtyp, third); - if (err < 0) - goto out; - if (put_user(type, &up->mtype)) - err = -EFAULT; -out: - return err; + return do_msgrcv(first, uptr, second, msgtyp, third, + compat_do_msg_fill); } #else long compat_sys_semctl(int semid, int semnum, int cmd, int arg) @@ -385,16 +387,8 @@ long compat_sys_msgsnd(int msqid, struct compat_msgbuf __user *msgp, long compat_sys_msgrcv(int msqid, struct compat_msgbuf __user *msgp, compat_ssize_t msgsz, long msgtyp, int msgflg) { - long err, mtype; - - err = do_msgrcv(msqid, &mtype, msgp->mtext, (ssize_t)msgsz, msgtyp, msgflg); - if (err < 0) - goto out; - - if (put_user(mtype, &msgp->mtype)) - err = -EFAULT; - out: - return err; + return do_msgrcv(msqid, msgp, (ssize_t)msgsz, msgtyp, msgflg, + compat_do_msg_fill); } #endif diff --git a/ipc/ipc_sysctl.c b/ipc/ipc_sysctl.c index 00fba2b..130dfec 100644 --- a/ipc/ipc_sysctl.c +++ b/ipc/ipc_sysctl.c @@ -158,6 +158,9 @@ static int proc_ipcauto_dointvec_minmax(ctl_table *table, int write, static int zero; static int one = 1; +#ifdef CONFIG_CHECKPOINT_RESTORE +static int int_max = INT_MAX; +#endif static struct ctl_table ipc_kern_table[] = { { @@ -227,6 +230,35 @@ static struct ctl_table ipc_kern_table[] = { .extra1 = &zero, .extra2 = &one, }, +#ifdef CONFIG_CHECKPOINT_RESTORE + { + .procname = "sem_next_id", + .data = &init_ipc_ns.ids[IPC_SEM_IDS].next_id, + .maxlen = sizeof(init_ipc_ns.ids[IPC_SEM_IDS].next_id), + .mode = 0644, + .proc_handler = proc_ipc_dointvec_minmax, + .extra1 = &zero, + .extra2 = &int_max, + }, + { + .procname = "msg_next_id", + .data = &init_ipc_ns.ids[IPC_MSG_IDS].next_id, + .maxlen = sizeof(init_ipc_ns.ids[IPC_MSG_IDS].next_id), + .mode = 0644, + .proc_handler = proc_ipc_dointvec_minmax, + .extra1 = &zero, + .extra2 = &int_max, + }, + { + .procname = "shm_next_id", + .data = &init_ipc_ns.ids[IPC_SHM_IDS].next_id, + .maxlen = sizeof(init_ipc_ns.ids[IPC_SHM_IDS].next_id), + .mode = 0644, + .proc_handler = proc_ipc_dointvec_minmax, + .extra1 = &zero, + .extra2 = &int_max, + }, +#endif {} }; @@ -755,26 +755,91 @@ static inline int convert_mode(long *msgtyp, int msgflg) return SEARCH_EQUAL; } -long do_msgrcv(int msqid, long *pmtype, void __user *mtext, - size_t msgsz, long msgtyp, int msgflg) +static long do_msg_fill(void __user *dest, struct msg_msg *msg, size_t bufsz) +{ + struct msgbuf __user *msgp = dest; + size_t msgsz; + + if (put_user(msg->m_type, &msgp->mtype)) + return -EFAULT; + + msgsz = (bufsz > msg->m_ts) ? msg->m_ts : bufsz; + if (store_msg(msgp->mtext, msg, msgsz)) + return -EFAULT; + return msgsz; +} + +#ifdef CONFIG_CHECKPOINT_RESTORE +/* + * This function creates new kernel message structure, large enough to store + * bufsz message bytes. + */ +static inline struct msg_msg *prepare_copy(void __user *buf, size_t bufsz, + int msgflg, long *msgtyp, + unsigned long *copy_number) +{ + struct msg_msg *copy; + + *copy_number = *msgtyp; + *msgtyp = 0; + /* + * Create dummy message to copy real message to. + */ + copy = load_msg(buf, bufsz); + if (!IS_ERR(copy)) + copy->m_ts = bufsz; + return copy; +} + +static inline void free_copy(struct msg_msg *copy) +{ + if (copy) + free_msg(copy); +} +#else +static inline struct msg_msg *prepare_copy(void __user *buf, size_t bufsz, + int msgflg, long *msgtyp, + unsigned long *copy_number) +{ + return ERR_PTR(-ENOSYS); +} + +static inline void free_copy(struct msg_msg *copy) +{ +} +#endif + +long do_msgrcv(int msqid, void __user *buf, size_t bufsz, long msgtyp, + int msgflg, + long (*msg_handler)(void __user *, struct msg_msg *, size_t)) { struct msg_queue *msq; struct msg_msg *msg; int mode; struct ipc_namespace *ns; + struct msg_msg *copy = NULL; + unsigned long copy_number = 0; - if (msqid < 0 || (long) msgsz < 0) + if (msqid < 0 || (long) bufsz < 0) return -EINVAL; + if (msgflg & MSG_COPY) { + copy = prepare_copy(buf, bufsz, msgflg, &msgtyp, ©_number); + if (IS_ERR(copy)) + return PTR_ERR(copy); + } mode = convert_mode(&msgtyp, msgflg); ns = current->nsproxy->ipc_ns; msq = msg_lock_check(ns, msqid); - if (IS_ERR(msq)) + if (IS_ERR(msq)) { + free_copy(copy); return PTR_ERR(msq); + } for (;;) { struct msg_receiver msr_d; struct list_head *tmp; + long msg_counter = 0; msg = ERR_PTR(-EACCES); if (ipcperms(ns, &msq->q_perm, S_IRUGO)) @@ -793,12 +858,21 @@ long do_msgrcv(int msqid, long *pmtype, void __user *mtext, msg = walk_msg; if (mode == SEARCH_LESSEQUAL && walk_msg->m_type != 1) { - msg = walk_msg; msgtyp = walk_msg->m_type - 1; - } else { - msg = walk_msg; + } else if (msgflg & MSG_COPY) { + if (copy_number == msg_counter) { + /* + * Found requested message. + * Copy it. + */ + msg = copy_msg(msg, copy); + if (IS_ERR(msg)) + goto out_unlock; + break; + } + } else break; - } + msg_counter++; } tmp = tmp->next; } @@ -807,10 +881,16 @@ long do_msgrcv(int msqid, long *pmtype, void __user *mtext, * Found a suitable message. * Unlink it from the queue. */ - if ((msgsz < msg->m_ts) && !(msgflg & MSG_NOERROR)) { + if ((bufsz < msg->m_ts) && !(msgflg & MSG_NOERROR)) { msg = ERR_PTR(-E2BIG); goto out_unlock; } + /* + * If we are copying, then do not unlink message and do + * not update queue parameters. + */ + if (msgflg & MSG_COPY) + goto out_unlock; list_del(&msg->m_list); msq->q_qnum--; msq->q_rtime = get_seconds(); @@ -834,7 +914,7 @@ long do_msgrcv(int msqid, long *pmtype, void __user *mtext, if (msgflg & MSG_NOERROR) msr_d.r_maxsize = INT_MAX; else - msr_d.r_maxsize = msgsz; + msr_d.r_maxsize = bufsz; msr_d.r_msg = ERR_PTR(-EAGAIN); current->state = TASK_INTERRUPTIBLE; msg_unlock(msq); @@ -894,32 +974,21 @@ out_unlock: break; } } - if (IS_ERR(msg)) + if (IS_ERR(msg)) { + free_copy(copy); return PTR_ERR(msg); + } - msgsz = (msgsz > msg->m_ts) ? msg->m_ts : msgsz; - *pmtype = msg->m_type; - if (store_msg(mtext, msg, msgsz)) - msgsz = -EFAULT; - + bufsz = msg_handler(buf, msg, bufsz); free_msg(msg); - return msgsz; + return bufsz; } SYSCALL_DEFINE5(msgrcv, int, msqid, struct msgbuf __user *, msgp, size_t, msgsz, long, msgtyp, int, msgflg) { - long err, mtype; - - err = do_msgrcv(msqid, &mtype, msgp->mtext, msgsz, msgtyp, msgflg); - if (err < 0) - goto out; - - if (put_user(mtype, &msgp->mtype)) - err = -EFAULT; -out: - return err; + return do_msgrcv(msqid, msgp, msgsz, msgtyp, msgflg, do_msg_fill); } #ifdef CONFIG_PROC_FS diff --git a/ipc/msgutil.c b/ipc/msgutil.c index 6471f1b..ebfcbfa 100644 --- a/ipc/msgutil.c +++ b/ipc/msgutil.c @@ -102,7 +102,50 @@ out_err: free_msg(msg); return ERR_PTR(err); } +#ifdef CONFIG_CHECKPOINT_RESTORE +struct msg_msg *copy_msg(struct msg_msg *src, struct msg_msg *dst) +{ + struct msg_msgseg *dst_pseg, *src_pseg; + int len = src->m_ts; + int alen; + + BUG_ON(dst == NULL); + if (src->m_ts > dst->m_ts) + return ERR_PTR(-EINVAL); + alen = len; + if (alen > DATALEN_MSG) + alen = DATALEN_MSG; + + dst->next = NULL; + dst->security = NULL; + + memcpy(dst + 1, src + 1, alen); + + len -= alen; + dst_pseg = dst->next; + src_pseg = src->next; + while (len > 0) { + alen = len; + if (alen > DATALEN_SEG) + alen = DATALEN_SEG; + memcpy(dst_pseg + 1, src_pseg + 1, alen); + dst_pseg = dst_pseg->next; + len -= alen; + src_pseg = src_pseg->next; + } + + dst->m_type = src->m_type; + dst->m_ts = src->m_ts; + + return dst; +} +#else +struct msg_msg *copy_msg(struct msg_msg *src, struct msg_msg *dst) +{ + return ERR_PTR(-ENOSYS); +} +#endif int store_msg(void __user *dest, struct msg_msg *msg, int len) { int alen; @@ -122,6 +122,7 @@ void ipc_init_ids(struct ipc_ids *ids) ids->in_use = 0; ids->seq = 0; + ids->next_id = -1; { int seq_limit = INT_MAX/SEQ_MULTIPLIER; if (seq_limit > USHRT_MAX) @@ -252,6 +253,7 @@ int ipc_addid(struct ipc_ids* ids, struct kern_ipc_perm* new, int size) kuid_t euid; kgid_t egid; int id, err; + int next_id = ids->next_id; if (size > IPCMNI) size = IPCMNI; @@ -264,7 +266,8 @@ int ipc_addid(struct ipc_ids* ids, struct kern_ipc_perm* new, int size) rcu_read_lock(); spin_lock(&new->lock); - err = idr_get_new(&ids->ipcs_idr, new, &id); + err = idr_get_new_above(&ids->ipcs_idr, new, + (next_id < 0) ? 0 : ipcid_to_idx(next_id), &id); if (err) { spin_unlock(&new->lock); rcu_read_unlock(); @@ -277,9 +280,14 @@ int ipc_addid(struct ipc_ids* ids, struct kern_ipc_perm* new, int size) new->cuid = new->uid = euid; new->gid = new->cgid = egid; - new->seq = ids->seq++; - if(ids->seq > ids->seq_max) - ids->seq = 0; + if (next_id < 0) { + new->seq = ids->seq++; + if (ids->seq > ids->seq_max) + ids->seq = 0; + } else { + new->seq = ipcid_to_seqx(next_id); + ids->next_id = -1; + } new->id = ipc_buildid(id, new->seq); return id; @@ -92,6 +92,7 @@ void __init ipc_init_proc_interface(const char *path, const char *header, #define IPC_SHM_IDS 2 #define ipcid_to_idx(id) ((id) % SEQ_MULTIPLIER) +#define ipcid_to_seqx(id) ((id) / SEQ_MULTIPLIER) /* must be called with ids->rw_mutex acquired for writing */ int ipc_addid(struct ipc_ids *, struct kern_ipc_perm *, int); @@ -139,6 +140,7 @@ int ipc_parse_version (int *cmd); extern void free_msg(struct msg_msg *msg); extern struct msg_msg *load_msg(const void __user *src, int len); +extern struct msg_msg *copy_msg(struct msg_msg *src, struct msg_msg *dst); extern int store_msg(void __user *dest, struct msg_msg *msg, int len); extern void recompute_msgmni(struct ipc_namespace *); diff --git a/kernel/printk.c b/kernel/printk.c index 19c0d7b..357f714 100644 --- a/kernel/printk.c +++ b/kernel/printk.c @@ -870,10 +870,11 @@ static size_t print_time(u64 ts, char *buf) if (!printk_time) return 0; + rem_nsec = do_div(ts, 1000000000); + if (!buf) - return 15; + return snprintf(NULL, 0, "[%5lu.000000] ", (unsigned long)ts); - rem_nsec = do_div(ts, 1000000000); return sprintf(buf, "[%5lu.%06lu] ", (unsigned long)ts, rem_nsec / 1000); } diff --git a/mm/memory.c b/mm/memory.c index e0a9b0c..49fb1cf 100644 --- a/mm/memory.c +++ b/mm/memory.c @@ -184,10 +184,14 @@ static int tlb_next_batch(struct mmu_gather *tlb) return 1; } + if (tlb->batch_count == MAX_GATHER_BATCH_COUNT) + return 0; + batch = (void *)__get_free_pages(GFP_NOWAIT | __GFP_NOWARN, 0); if (!batch) return 0; + tlb->batch_count++; batch->next = NULL; batch->nr = 0; batch->max = MAX_GATHER_BATCH; @@ -216,6 +220,7 @@ void tlb_gather_mmu(struct mmu_gather *tlb, struct mm_struct *mm, bool fullmm) tlb->local.nr = 0; tlb->local.max = ARRAY_SIZE(tlb->__pages); tlb->active = &tlb->local; + tlb->batch_count = 0; #ifdef CONFIG_HAVE_RCU_TABLE_FREE tlb->batch = NULL; diff --git a/mm/page_alloc.c b/mm/page_alloc.c index 4ba5e37..bc6cc0e 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -221,11 +221,6 @@ EXPORT_SYMBOL(nr_online_nodes); int page_group_by_mobility_disabled __read_mostly; -/* - * NOTE: - * Don't use set_pageblock_migratetype(page, MIGRATE_ISOLATE) directly. - * Instead, use {un}set_pageblock_isolate. - */ void set_pageblock_migratetype(struct page *page, int migratetype) { @@ -1655,20 +1650,6 @@ static bool __zone_watermark_ok(struct zone *z, int order, unsigned long mark, return true; } -#ifdef CONFIG_MEMORY_ISOLATION -static inline unsigned long nr_zone_isolate_freepages(struct zone *zone) -{ - if (unlikely(zone->nr_pageblock_isolate)) - return zone->nr_pageblock_isolate * pageblock_nr_pages; - return 0; -} -#else -static inline unsigned long nr_zone_isolate_freepages(struct zone *zone) -{ - return 0; -} -#endif - bool zone_watermark_ok(struct zone *z, int order, unsigned long mark, int classzone_idx, int alloc_flags) { @@ -1684,14 +1665,6 @@ bool zone_watermark_ok_safe(struct zone *z, int order, unsigned long mark, if (z->percpu_drift_mark && free_pages < z->percpu_drift_mark) free_pages = zone_page_state_snapshot(z, NR_FREE_PAGES); - /* - * If the zone has MIGRATE_ISOLATE type free pages, we should consider - * it. nr_zone_isolate_freepages is never accurate so kswapd might not - * sleep although it could do so. But this is more desirable for memory - * hotplug than sleeping which can cause a livelock in the direct - * reclaim path. - */ - free_pages -= nr_zone_isolate_freepages(z); return __zone_watermark_ok(z, order, mark, classzone_idx, alloc_flags, free_pages); } diff --git a/mm/page_isolation.c b/mm/page_isolation.c index 9d2264e..383bdbb 100644 --- a/mm/page_isolation.c +++ b/mm/page_isolation.c @@ -8,28 +8,6 @@ #include <linux/memory.h> #include "internal.h" -/* called while holding zone->lock */ -static void set_pageblock_isolate(struct page *page) -{ - if (get_pageblock_migratetype(page) == MIGRATE_ISOLATE) - return; - - set_pageblock_migratetype(page, MIGRATE_ISOLATE); - page_zone(page)->nr_pageblock_isolate++; -} - -/* called while holding zone->lock */ -static void restore_pageblock_isolate(struct page *page, int migratetype) -{ - struct zone *zone = page_zone(page); - if (WARN_ON(get_pageblock_migratetype(page) != MIGRATE_ISOLATE)) - return; - - BUG_ON(zone->nr_pageblock_isolate <= 0); - set_pageblock_migratetype(page, migratetype); - zone->nr_pageblock_isolate--; -} - int set_migratetype_isolate(struct page *page, bool skip_hwpoisoned_pages) { struct zone *zone; @@ -80,7 +58,7 @@ out: unsigned long nr_pages; int migratetype = get_pageblock_migratetype(page); - set_pageblock_isolate(page); + set_pageblock_migratetype(page, MIGRATE_ISOLATE); nr_pages = move_freepages_block(zone, page, MIGRATE_ISOLATE); __mod_zone_freepage_state(zone, -nr_pages, migratetype); @@ -103,7 +81,7 @@ void unset_migratetype_isolate(struct page *page, unsigned migratetype) goto out; nr_pages = move_freepages_block(zone, page, migratetype); __mod_zone_freepage_state(zone, nr_pages, migratetype); - restore_pageblock_isolate(page, migratetype); + set_pageblock_migratetype(page, migratetype); out: spin_unlock_irqrestore(&zone->lock, flags); } diff --git a/tools/testing/selftests/ipc/Makefile b/tools/testing/selftests/ipc/Makefile new file mode 100644 index 0000000..5386fd7 --- /dev/null +++ b/tools/testing/selftests/ipc/Makefile @@ -0,0 +1,25 @@ +uname_M := $(shell uname -m 2>/dev/null || echo not) +ARCH ?= $(shell echo $(uname_M) | sed -e s/i.86/i386/) +ifeq ($(ARCH),i386) + ARCH := X86 + CFLAGS := -DCONFIG_X86_32 -D__i386__ +endif +ifeq ($(ARCH),x86_64) + ARCH := X86 + CFLAGS := -DCONFIG_X86_64 -D__x86_64__ +endif + +CFLAGS += -I../../../../usr/include/ + +all: +ifeq ($(ARCH),X86) + gcc $(CFLAGS) msgque.c -o msgque_test +else + echo "Not an x86 target, can't build msgque selftest" +endif + +run_tests: all + ./msgque_test + +clean: + rm -fr ./msgque_test diff --git a/tools/testing/selftests/ipc/msgque.c b/tools/testing/selftests/ipc/msgque.c new file mode 100644 index 0000000..d664182 --- /dev/null +++ b/tools/testing/selftests/ipc/msgque.c @@ -0,0 +1,246 @@ +#include <stdlib.h> +#include <stdio.h> +#include <string.h> +#include <errno.h> +#include <linux/msg.h> +#include <fcntl.h> + +#define MAX_MSG_SIZE 32 + +struct msg1 { + int msize; + long mtype; + char mtext[MAX_MSG_SIZE]; +}; + +#define TEST_STRING "Test sysv5 msg" +#define MSG_TYPE 1 + +#define ANOTHER_TEST_STRING "Yet another test sysv5 msg" +#define ANOTHER_MSG_TYPE 26538 + +struct msgque_data { + key_t key; + int msq_id; + int qbytes; + int qnum; + int mode; + struct msg1 *messages; +}; + +int restore_queue(struct msgque_data *msgque) +{ + int fd, ret, id, i; + char buf[32]; + + fd = open("/proc/sys/kernel/msg_next_id", O_WRONLY); + if (fd == -1) { + printf("Failed to open /proc/sys/kernel/msg_next_id\n"); + return -errno; + } + sprintf(buf, "%d", msgque->msq_id); + + ret = write(fd, buf, strlen(buf)); + if (ret != strlen(buf)) { + printf("Failed to write to /proc/sys/kernel/msg_next_id\n"); + return -errno; + } + + id = msgget(msgque->key, msgque->mode | IPC_CREAT | IPC_EXCL); + if (id == -1) { + printf("Failed to create queue\n"); + return -errno; + } + + if (id != msgque->msq_id) { + printf("Restored queue has wrong id (%d instead of %d)\n", + id, msgque->msq_id); + ret = -EFAULT; + goto destroy; + } + + for (i = 0; i < msgque->qnum; i++) { + if (msgsnd(msgque->msq_id, &msgque->messages[i].mtype, + msgque->messages[i].msize, IPC_NOWAIT) != 0) { + printf("msgsnd failed (%m)\n"); + ret = -errno; + goto destroy; + }; + } + return 0; + +destroy: + if (msgctl(id, IPC_RMID, 0)) + printf("Failed to destroy queue: %d\n", -errno); + return ret; +} + +int check_and_destroy_queue(struct msgque_data *msgque) +{ + struct msg1 message; + int cnt = 0, ret; + + while (1) { + ret = msgrcv(msgque->msq_id, &message.mtype, MAX_MSG_SIZE, + 0, IPC_NOWAIT); + if (ret < 0) { + if (errno == ENOMSG) + break; + printf("Failed to read IPC message: %m\n"); + ret = -errno; + goto err; + } + if (ret != msgque->messages[cnt].msize) { + printf("Wrong message size: %d (expected %d)\n", ret, + msgque->messages[cnt].msize); + ret = -EINVAL; + goto err; + } + if (message.mtype != msgque->messages[cnt].mtype) { + printf("Wrong message type\n"); + ret = -EINVAL; + goto err; + } + if (memcmp(message.mtext, msgque->messages[cnt].mtext, ret)) { + printf("Wrong message content\n"); + ret = -EINVAL; + goto err; + } + cnt++; + } + + if (cnt != msgque->qnum) { + printf("Wrong message number\n"); + ret = -EINVAL; + goto err; + } + + ret = 0; +err: + if (msgctl(msgque->msq_id, IPC_RMID, 0)) { + printf("Failed to destroy queue: %d\n", -errno); + return -errno; + } + return ret; +} + +int dump_queue(struct msgque_data *msgque) +{ + struct msqid64_ds ds; + int kern_id; + int i, ret; + + for (kern_id = 0; kern_id < 256; kern_id++) { + ret = msgctl(kern_id, MSG_STAT, &ds); + if (ret < 0) { + if (errno == -EINVAL) + continue; + printf("Failed to get stats for IPC queue with id %d\n", + kern_id); + return -errno; + } + + if (ret == msgque->msq_id) + break; + } + + msgque->messages = malloc(sizeof(struct msg1) * ds.msg_qnum); + if (msgque->messages == NULL) { + printf("Failed to get stats for IPC queue\n"); + return -ENOMEM; + } + + msgque->qnum = ds.msg_qnum; + msgque->mode = ds.msg_perm.mode; + msgque->qbytes = ds.msg_qbytes; + + for (i = 0; i < msgque->qnum; i++) { + ret = msgrcv(msgque->msq_id, &msgque->messages[i].mtype, + MAX_MSG_SIZE, i, IPC_NOWAIT | MSG_COPY); + if (ret < 0) { + printf("Failed to copy IPC message: %m (%d)\n", errno); + return -errno; + } + msgque->messages[i].msize = ret; + } + return 0; +} + +int fill_msgque(struct msgque_data *msgque) +{ + struct msg1 msgbuf; + + msgbuf.mtype = MSG_TYPE; + memcpy(msgbuf.mtext, TEST_STRING, sizeof(TEST_STRING)); + if (msgsnd(msgque->msq_id, &msgbuf.mtype, sizeof(TEST_STRING), + IPC_NOWAIT) != 0) { + printf("First message send failed (%m)\n"); + return -errno; + }; + + msgbuf.mtype = ANOTHER_MSG_TYPE; + memcpy(msgbuf.mtext, ANOTHER_TEST_STRING, sizeof(ANOTHER_TEST_STRING)); + if (msgsnd(msgque->msq_id, &msgbuf.mtype, sizeof(ANOTHER_TEST_STRING), + IPC_NOWAIT) != 0) { + printf("Second message send failed (%m)\n"); + return -errno; + }; + return 0; +} + +int main(int argc, char **argv) +{ + int msg, pid, err; + struct msgque_data msgque; + + msgque.key = ftok(argv[0], 822155650); + if (msgque.key == -1) { + printf("Can't make key\n"); + return -errno; + } + + msgque.msq_id = msgget(msgque.key, IPC_CREAT | IPC_EXCL | 0666); + if (msgque.msq_id == -1) { + printf("Can't create queue\n"); + goto err_out; + } + + err = fill_msgque(&msgque); + if (err) { + printf("Failed to fill queue\n"); + goto err_destroy; + } + + err = dump_queue(&msgque); + if (err) { + printf("Failed to dump queue\n"); + goto err_destroy; + } + + err = check_and_destroy_queue(&msgque); + if (err) { + printf("Failed to check and destroy queue\n"); + goto err_out; + } + + err = restore_queue(&msgque); + if (err) { + printf("Failed to restore queue\n"); + goto err_destroy; + } + + err = check_and_destroy_queue(&msgque); + if (err) { + printf("Failed to test queue\n"); + goto err_out; + } + return 0; + +err_destroy: + if (msgctl(msgque.msq_id, IPC_RMID, 0)) { + printf("Failed to destroy queue: %d\n", -errno); + return -errno; + } +err_out: + return err; +} |