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2006-06-30[PATCH] knfsd: improve the test for cross-device-rename in nfsdNeilBrown
Just testing the i_sb isn't really enough, at least the vfsmnt must be the same. Thanks Al. Cc: Al Viro <viro@ftp.linux.org.uk> Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-30[PATCH] SELinux: Add security hook definition for getioprio and insert hooksDavid Quigley
Add a new security hook definition for the sys_ioprio_get operation. At present, the SELinux hook function implementation for this hook is identical to the getscheduler implementation but a separate hook is introduced to allow this check to be specialized in the future if necessary. This patch also creates a helper function get_task_ioprio which handles the access check in addition to retrieving the ioprio value for the task. Signed-off-by: David Quigley <dpquigl@tycho.nsa.gov> Acked-by: Stephen Smalley <sds@tycho.nsa.gov> Signed-off-by: James Morris <jmorris@namei.org> Cc: Jens Axboe <axboe@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-30[PATCH] Light weight event countersChristoph Lameter
The remaining counters in page_state after the zoned VM counter patches have been applied are all just for show in /proc/vmstat. They have no essential function for the VM. We use a simple increment of per cpu variables. In order to avoid the most severe races we disable preempt. Preempt does not prevent the race between an increment and an interrupt handler incrementing the same statistics counter. However, that race is exceedingly rare, we may only loose one increment or so and there is no requirement (at least not in kernel) that the vm event counters have to be accurate. In the non preempt case this results in a simple increment for each counter. For many architectures this will be reduced by the compiler to a single instruction. This single instruction is atomic for i386 and x86_64. And therefore even the rare race condition in an interrupt is avoided for both architectures in most cases. The patchset also adds an off switch for embedded systems that allows a building of linux kernels without these counters. The implementation of these counters is through inline code that hopefully results in only a single instruction increment instruction being emitted (i386, x86_64) or in the increment being hidden though instruction concurrency (EPIC architectures such as ia64 can get that done). Benefits: - VM event counter operations usually reduce to a single inline instruction on i386 and x86_64. - No interrupt disable, only preempt disable for the preempt case. Preempt disable can also be avoided by moving the counter into a spinlock. - Handling is similar to zoned VM counters. - Simple and easily extendable. - Can be omitted to reduce memory use for embedded use. References: RFC http://marc.theaimsgroup.com/?l=linux-kernel&m=113512330605497&w=2 RFC http://marc.theaimsgroup.com/?l=linux-kernel&m=114988082814934&w=2 local_t http://marc.theaimsgroup.com/?l=linux-kernel&m=114991748606690&w=2 V2 http://marc.theaimsgroup.com/?t=115014808400007&r=1&w=2 V3 http://marc.theaimsgroup.com/?l=linux-kernel&m=115024767022346&w=2 V4 http://marc.theaimsgroup.com/?l=linux-kernel&m=115047968808926&w=2 Signed-off-by: Christoph Lameter <clameter@sgi.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-30[PATCH] zoned vm counters: conversion of nr_bounce to per zone counterChristoph Lameter
Conversion of nr_bounce to a per zone counter nr_bounce is only used for proc output. So it could be left as an event counter. However, the event counters may not be accurate and nr_bounce is categorizing types of pages in a zone. So we really need this to also be a per zone counter. [akpm@osdl.org: bugfix] Signed-off-by: Christoph Lameter <clameter@sgi.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-30[PATCH] zoned vm counters: conversion of nr_unstable to per zone counterChristoph Lameter
Conversion of nr_unstable to a per zone counter We need to do some special modifications to the nfs code since there are multiple cases of disposition and we need to have a page ref for proper accounting. This converts the last critical page state of the VM and therefore we need to remove several functions that were depending on GET_PAGE_STATE_LAST in order to make the kernel compile again. We are only left with event type counters in page state. [akpm@osdl.org: bugfixes] Signed-off-by: Christoph Lameter <clameter@sgi.com> Cc: Trond Myklebust <trond.myklebust@fys.uio.no> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-30[PATCH] zoned vm counters: conversion of nr_writeback to per zone counterChristoph Lameter
Conversion of nr_writeback to per zone counter. This removes the last page_state counter from arch/i386/mm/pgtable.c so we drop the page_state from there. [akpm@osdl.org: bugfix] Signed-off-by: Christoph Lameter <clameter@sgi.com> Cc: Trond Myklebust <trond.myklebust@fys.uio.no> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-30[PATCH] zoned vm counters: conversion of nr_dirty to per zone counterChristoph Lameter
This makes nr_dirty a per zone counter. Looping over all processors is avoided during writeback state determination. The counter aggregation for nr_dirty had to be undone in the NFS layer since we summed up the page counts from multiple zones. Someone more familiar with NFS should probably review what I have done. [akpm@osdl.org: bugfix] Signed-off-by: Christoph Lameter <clameter@sgi.com> Cc: Trond Myklebust <trond.myklebust@fys.uio.no> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-30[PATCH] zoned vm counters: conversion of nr_pagetables to per zone counterChristoph Lameter
Conversion of nr_page_table_pages to a per zone counter [akpm@osdl.org: bugfix] Signed-off-by: Christoph Lameter <clameter@sgi.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-30[PATCH] zoned vm counters: conversion of nr_slab to per zone counterChristoph Lameter
- Allows reclaim to access counter without looping over processor counts. - Allows accurate statistics on how many pages are used in a zone by the slab. This may become useful to balance slab allocations over various zones. [akpm@osdl.org: bugfix] Signed-off-by: Christoph Lameter <clameter@sgi.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-30[PATCH] zoned vm counters: split NR_ANON_PAGES off from NR_FILE_MAPPEDChristoph Lameter
The current NR_FILE_MAPPED is used by zone reclaim and the dirty load calculation as the number of mapped pagecache pages. However, that is not true. NR_FILE_MAPPED includes the mapped anonymous pages. This patch separates those and therefore allows an accurate tracking of the anonymous pages per zone. It then becomes possible to determine the number of unmapped pages per zone and we can avoid scanning for unmapped pages if there are none. Also it may now be possible to determine the mapped/unmapped ratio in get_dirty_limit. Isnt the number of anonymous pages irrelevant in that calculation? Note that this will change the meaning of the number of mapped pages reported in /proc/vmstat /proc/meminfo and in the per node statistics. This may affect user space tools that monitor these counters! NR_FILE_MAPPED works like NR_FILE_DIRTY. It is only valid for pagecache pages. Signed-off-by: Christoph Lameter <clameter@sgi.com> Cc: Trond Myklebust <trond.myklebust@fys.uio.no> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-30[PATCH] zoned vm counters: conversion of nr_pagecache to per zone counterChristoph Lameter
Currently a single atomic variable is used to establish the size of the page cache in the whole machine. The zoned VM counters have the same method of implementation as the nr_pagecache code but also allow the determination of the pagecache size per zone. Remove the special implementation for nr_pagecache and make it a zoned counter named NR_FILE_PAGES. Updates of the page cache counters are always performed with interrupts off. We can therefore use the __ variant here. Signed-off-by: Christoph Lameter <clameter@sgi.com> Cc: Trond Myklebust <trond.myklebust@fys.uio.no> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-30[PATCH] zoned vm counters: convert nr_mapped to per zone counterChristoph Lameter
nr_mapped is important because it allows a determination of how many pages of a zone are not mapped, which would allow a more efficient means of determining when we need to reclaim memory in a zone. We take the nr_mapped field out of the page state structure and define a new per zone counter named NR_FILE_MAPPED (the anonymous pages will be split off from NR_MAPPED in the next patch). We replace the use of nr_mapped in various kernel locations. This avoids the looping over all processors in try_to_free_pages(), writeback, reclaim (swap + zone reclaim). [akpm@osdl.org: bugfix] Signed-off-by: Christoph Lameter <clameter@sgi.com> Cc: Trond Myklebust <trond.myklebust@fys.uio.no> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-30Remove obsolete #include <linux/config.h>Jörn Engel
Signed-off-by: Jörn Engel <joern@wohnheim.fh-wedel.de> Signed-off-by: Adrian Bunk <bunk@stusta.de>
2006-06-30v9fs: do not include linux/version.hPaul Collins
I noticed that part of v9fs was being rebuilt when version.h changed. Signed-off-by: Paul Collins <paul@ondioline.org> Signed-off-by: Adrian Bunk <bunk@stusta.de>
2006-06-30typo fixes: aquire -> acquireAdrian Bunk
Signed-off-by: Adrian Bunk <bunk@stusta.de> Acked-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2006-06-30Merge branch 'upstream-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/mfasheh/ocfs2 * 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mfasheh/ocfs2: ocfs2: remove redundant NULL checks in ocfs2_direct_IO_get_blocks() ocfs2: clean up some osb fields ocfs2: fix init of uuid_net_key ocfs2: silence a debug print ocfs2: silence ENOENT during lookup of broken links ocfs2: Cleanup message prints ocfs2: silence -EEXIST from ocfs2_extent_map_insert/lookup [PATCH] fs/ocfs2/dlm/dlmrecovery.c: make dlm_lockres_master_requery() static ocfs2: warn the user on a dead timeout mismatch ocfs2: OCFS2_FS must depend on SYSFS ocfs2: Compile-time disabling of ocfs2 debugging output. configfs: Clear up a few extra spaces where there should be TABs. configfs: Release memory in configfs_example.
2006-06-29ocfs2: remove redundant NULL checks in ocfs2_direct_IO_get_blocks()Florin Malita
Signed-off-by: Florin Malita <fmalita@gmail.com> Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-06-29ocfs2: clean up some osb fieldsMark Fasheh
Get rid of osb->uuid, osb->proc_sub_dir, and osb->osb_id. Those fields were unused, or could easily be removed. As a result, we also no longer need MAX_OSB_ID or ocfs2_globals_lock. Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-06-29ocfs2: fix init of uuid_net_keyMark Fasheh
ocfs2_initialize_super() should be copying from the beginning of the uuid. Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-06-29ocfs2: silence a debug printMark Fasheh
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-06-29ocfs2: silence ENOENT during lookup of broken linksSunil Mushran
Signed-off-by: Sunil Mushran <sunil.mushran@oracle.com> Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-06-29ocfs2: Cleanup message printsSunil Mushran
Signed-off-by: Sunil Mushran <sunil.mushran@oracle.com> Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-06-29ocfs2: silence -EEXIST from ocfs2_extent_map_insert/lookupJoel Becker
Signed-off-by: Joel Becker <joel.becker@oracle.com> Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-06-29[PATCH] fs/ocfs2/dlm/dlmrecovery.c: make dlm_lockres_master_requery() staticAdrian Bunk
dlm_lockres_master_requery() became global without any external usage. Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-06-29ocfs2: warn the user on a dead timeout mismatchMark Fasheh
Print a warning to the user when a node with a different dead count joins the region. Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-06-29fs/jffs2/: make 2 functions staticAdrian Bunk
This patch makes two needlessly global functions static. Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-06-29ocfs2: OCFS2_FS must depend on SYSFSAdrian Bunk
Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-06-29ocfs2: Compile-time disabling of ocfs2 debugging output.Joel Becker
Give gcc the chance to compile out the debug logging code in ocfs2. This saves some size at the expense of being able to debug the code. Signed-off-by: Joel Becker <joel.becker@oracle.com> Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-06-29configfs: Clear up a few extra spaces where there should be TABs.Joel Becker
Signed-off-by: Joel Becker <joel.becker@oracle.com> Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-06-29Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/devfs-2.6Linus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/devfs-2.6: (22 commits) [PATCH] devfs: Remove it from the feature_removal.txt file [PATCH] devfs: Last little devfs cleanups throughout the kernel tree. [PATCH] devfs: Rename TTY_DRIVER_NO_DEVFS to TTY_DRIVER_DYNAMIC_DEV [PATCH] devfs: Remove the tty_driver devfs_name field as it's no longer needed [PATCH] devfs: Remove the line_driver devfs_name field as it's no longer needed [PATCH] devfs: Remove the videodevice devfs_name field as it's no longer needed [PATCH] devfs: Remove the gendisk devfs_name field as it's no longer needed [PATCH] devfs: Remove the miscdevice devfs_name field as it's no longer needed [PATCH] devfs: Remove the devfs_fs_kernel.h file from the tree [PATCH] devfs: Remove devfs_remove() function from the kernel tree [PATCH] devfs: Remove devfs_mk_cdev() function from the kernel tree [PATCH] devfs: Remove devfs_mk_bdev() function from the kernel tree [PATCH] devfs: Remove devfs_mk_symlink() function from the kernel tree [PATCH] devfs: Remove devfs_mk_dir() function from the kernel tree [PATCH] devfs: Remove devfs_*_tape() functions from the kernel tree [PATCH] devfs: Remove devfs support from the sound subsystem [PATCH] devfs: Remove devfs support from the ide subsystem. [PATCH] devfs: Remove devfs support from the serial subsystem [PATCH] devfs: Remove devfs from the init code [PATCH] devfs: Remove devfs from the partition code ...
2006-06-29[PATCH] ufs: printk() fixAndrew Morton
fs/ufs/inode.c: In function `ufs_frag_map': fs/ufs/inode.c:101: warning: long long unsigned int format, u64 arg (arg 4) fs/ufs/inode.c: In function `ufs_getfrag_block': fs/ufs/inode.c:432: warning: long long unsigned int format, u64 arg (arg 2) Cc: Evgeniy Dushistov <dushistov@mail.ru> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-29[JFFS2][XATTR] Fix xd->refcnt race conditionKaiGai Kohei
When xd->refcnt is checked whether this xdatum should be released or not, atomic_dec_and_lock() is used to ensure holding the c->erase_completion_lock. This fix change a specification of delete_xattr_datum(). Previously, it's only called when xd->refcnt equals zero. (calling it with positive xd->refcnt cause a BUG()) If you applied this patch, the function checks whether xd->refcnt is zero or not under the spinlock if necessary. Then, it marks xd DEAD flahs and links with xattr_dead_list or releases it immediately when xd->refcnt become zero. Signed-off-by: KaiGai Kohei <kaigai@ak.jp.nec.com> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-06-29Merge branch 'master' of /home/trondmy/kernel/linux-2.6/Trond Myklebust
2006-06-28[PATCH] v9fs: fix fid check in v9fs_createLatchesar Ionkov
Fix an incorrect check whether a fid was allocated in v9fs_create and if it should be freed on error. Signed-off-by: Latchesar Ionkov <lucho@ionkov.net> Cc: Eric Van Hensbergen <ericvh@ericvh.myip.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-28[PATCH] v9fs: return the correct error when interrupted by signalLatchesar Ionkov
If a signal interrupts the user process, v9fs sends a flush request to the file server and waits for its response. It error code is incorrectly set to the error code of the flush message instead of ERESTARTSYS. The patch sets the error code to the correct value. Signed-off-by: Latchesar Ionkov <lucho@ionkov.net> Cc: Eric Van Hensbergen <ericvh@ericvh.myip.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-28[PATCH] mark address_space_operations constChristoph Hellwig
Same as with already do with the file operations: keep them in .rodata and prevents people from doing runtime patching. Signed-off-by: Christoph Hellwig <hch@lst.de> Cc: Steven French <sfrench@us.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-28Revert "Merge branch 'odirect'"Trond Myklebust
This reverts ccf01ef7aa9c6c293a1c64c27331a2ce227916ec commit. No idea how git managed this one: when I asked it to merge the odirect topic branch it actually generated a patch which reverted the change. Reverting the 'merge' will once again reveal Chuck's recent NFS/O_DIRECT work to the world. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2006-06-28Merge git://git.infradead.org/mtd-2.6Linus Torvalds
* git://git.infradead.org/mtd-2.6: [MTD] NAND: Select chip before checking write protect status [MTD] CORE mtdchar.c: fix off-by-one error in lseek() [MTD] NAND: Fix typo in mtd/nand/ts7250.c [JFFS2][XATTR] coexistence between xattr and write buffering support. [JFFS2][XATTR] Fix wrong copyright [JFFS2][XATTR] Re-define xd->refcnt as atomic_t [JFFS2][XATTR] Fix memory leak with jffs2_xattr_ref [JFFS2][XATTR] rid unnecessary writing of delete marker. [JFFS2][XATTR] Fix ACL bug when updating null xattr by null ACL. [JFFS2][XATTR] using 'delete marker' for xdatum/xref deletion [MTD] Fix off-by-one error in physmap.c [MTD] Remove unused 'nr_banks' variable from ixp2000 map driver [MTD NAND] s3c2412 support in s3c2410.c [MTD] Initialize 'writesize' [MTD] NAND: ndfc fix address offset thinko [MTD] NAND: S3C2410 convert prinks to dev_*()s [MTD] NAND: Missing fixups
2006-06-28Merge git://oss.sgi.com:8090/nathans/xfs-2.6Linus Torvalds
* git://oss.sgi.com:8090/nathans/xfs-2.6: [XFS] Fixup whitespace damage in log_write, remove final warning. [XFS] Rework code snippets slightly to remove remaining recent-gcc [XFS] Fix realtime subvolume expansion, a porting bug b0rked it. Coverity [XFS] Remove a race condition where a linked inode could BUG_ON in [XFS] Remove redundant directory checks from inode link operation. [XFS] Remove a couple of no-longer-used macros. [XFS] Reduce size of xfs_trans_t structure. * remove ->t_forw, ->t_back -- [XFS] remove unused behaviour lock - shrink XFS vnode as a side effect. [XFS] * There is trivial "inode => vnode => inode" conversion, but only [XFS] link(2) on directory is banned in VFS.
2006-06-28Merge git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6Linus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6: (25 commits) [CIFS] Fix authentication choice so we do not force NTLMv2 unless the [CIFS] Fix alignment of unicode strings in previous patch [CIFS] Fix allocation of buffers for new session setup routine to allow [CIFS] Remove calls to to take f_owner.lock [CIFS] remove some redundant null pointer checks [CIFS] Fix compile warning when CONFIG_CIFS_EXPERIMENTAL is off [CIFS] Enable sec flags on mount for cifs (part one) [CIFS] Fix suspend/resume problem which causes EIO on subsequent access to [CIFS] fix minor compile warning when config_cifs_weak_security is off [CIFS] NTLMv2 support part 5 [CIFS] Add support for readdir to legacy servers [CIFS] NTLMv2 support part 4 [CIFS] NTLMv2 support part 3 [CIFS] NTLMv2 support part 2 [CIFS] Fix mask so can set new cifs security flags properly CIFS] Support for older servers which require plaintext passwords - part 2 [CIFS] Support for older servers which require plaintext passwords [CIFS] Fix mapping of old SMB return code Invalid Net Name so it is [CIFS] Missing brace [CIFS] Do not overwrite aops ...
2006-06-28[XFS] Fixup whitespace damage in log_write, remove final warning.Nathan Scott
SGI-PV: 904196 SGI-Modid: xfs-linux-melb:xfs-kern:26366a Signed-off-by: Nathan Scott <nathans@sgi.com>
2006-06-28[PATCH] Remove redundant NULL checks before [kv]free - in fs/Jesper Juhl
Remove redundant NULL checks before kfree for fs/ Signed-off-by: Jesper Juhl <jesper.juhl@gmail.com> Acked-by: Mark Fasheh <mark.fasheh@oracle.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-28[PATCH] cpu hotplug: use hotplug version of cpu notifier in appropriate placesChandra Seetharaman
Make use the of newly defined hotplug version of cpu_notifier functionality wherever appropriate. Signed-off-by: Chandra Seetharaman <sekharan@us.ibm.com> Cc: Ashok Raj <ashok.raj@intel.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-28[PATCH] ufs: ufs_read_inode cleanupEvgeniy Dushistov
Add missed ufsi->i_dir_start_lookup initialization in ufs_read_inode in UFS2 case. Also it cleans ufs_read_inode function to prevent such kind of situation in the future: it move depend on UFS type parts of code into separate functions and leaves in ufs_read_inode only generic code. It cleans code and avoids duplication. Signed-off-by: Evgeniy Dushistov <dushistov@mail.ru> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-28[PATCH] spin/rwlock init cleanupsIngo Molnar
locking init cleanups: - convert " = SPIN_LOCK_UNLOCKED" to spin_lock_init() or DEFINE_SPINLOCK() - convert rwlocks in a similar manner this patch was generated automatically. Motivation: - cleanliness - lockdep needs control of lock initialization, which the open-coded variants do not give - it's also useful for -rt and for lock debugging in general Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Arjan van de Ven <arjan@linux.intel.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-28[PATCH] fs/buffer.c: cleanupsAdrian Bunk
- add a proper prototype for the following global function: - buffer_init() - make the following needlessly global function static: - end_buffer_async_write() Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-28[PATCH] add poison.h and patch primary usersRandy Dunlap
Localize poison values into one header file for better documentation and easier/quicker debugging and so that the same values won't be used for multiple purposes. Use these constants in core arch., mm, driver, and fs code. Signed-off-by: Randy Dunlap <rdunlap@xenotime.net> Acked-by: Matt Mackall <mpm@selenic.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: "David S. Miller" <davem@davemloft.net> Cc: Andi Kleen <ak@muc.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-28[PATCH] vdso: randomize the i386 vDSO by moving it into a vmaIngo Molnar
Move the i386 VDSO down into a vma and thus randomize it. Besides the security implications, this feature also helps debuggers, which can COW a vma-backed VDSO just like a normal DSO and can thus do single-stepping and other debugging features. It's good for hypervisors (Xen, VMWare) too, which typically live in the same high-mapped address space as the VDSO, hence whenever the VDSO is used, they get lots of guest pagefaults and have to fix such guest accesses up - which slows things down instead of speeding things up (the primary purpose of the VDSO). There's a new CONFIG_COMPAT_VDSO (default=y) option, which provides support for older glibcs that still rely on a prelinked high-mapped VDSO. Newer distributions (using glibc 2.3.3 or later) can turn this option off. Turning it off is also recommended for security reasons: attackers cannot use the predictable high-mapped VDSO page as syscall trampoline anymore. There is a new vdso=[0|1] boot option as well, and a runtime /proc/sys/vm/vdso_enabled sysctl switch, that allows the VDSO to be turned on/off. (This version of the VDSO-randomization patch also has working ELF coredumping, the previous patch crashed in the coredumping code.) This code is a combined work of the exec-shield VDSO randomization code and Gerd Hoffmann's hypervisor-centric VDSO patch. Rusty Russell started this patch and i completed it. [akpm@osdl.org: cleanups] [akpm@osdl.org: compile fix] [akpm@osdl.org: compile fix 2] [akpm@osdl.org: compile fix 3] [akpm@osdl.org: revernt MAXMEM change] Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Arjan van de Ven <arjan@infradead.org> Cc: Gerd Hoffmann <kraxel@suse.de> Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: Zachary Amsden <zach@vmware.com> Cc: Andi Kleen <ak@muc.de> Cc: Jan Beulich <jbeulich@novell.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-28[XFS] Rework code snippets slightly to remove remaining recent-gccNathan Scott
warnings. SGI-PV: 904196 SGI-Modid: xfs-linux-melb:xfs-kern:26364a Signed-off-by: Nathan Scott <nathans@sgi.com>
2006-06-28[CIFS] Fix authentication choice so we do not force NTLMv2 unless theSteve French
user specifies it is required or turns of ntlm Signed-off-by: Steve French <sfrench@us.ibm.com>