diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2011-11-02 23:07:27 (GMT) |
---|---|---|
committer | Linus Torvalds <torvalds@linux-foundation.org> | 2011-11-02 23:07:27 (GMT) |
commit | 092f4c56c1927e4b61a41ee8055005f1cb437009 (patch) | |
tree | 616ceb54b7671ccc13922ae9e002b8b972f6e09e /lib/idr.c | |
parent | 80c2861672bbf000f6af838656959ee937e4ee4d (diff) | |
parent | c1e2ee2dc436574880758b3836fc96935b774c32 (diff) | |
download | linux-092f4c56c1927e4b61a41ee8055005f1cb437009.tar.xz |
Merge branch 'akpm' (Andrew's incoming - part two)
Says Andrew:
"60 patches. That's good enough for -rc1 I guess. I have quite a lot
of detritus to be rechecked, work through maintainers, etc.
- most of the remains of MM
- rtc
- various misc
- cgroups
- memcg
- cpusets
- procfs
- ipc
- rapidio
- sysctl
- pps
- w1
- drivers/misc
- aio"
* akpm: (60 commits)
memcg: replace ss->id_lock with a rwlock
aio: allocate kiocbs in batches
drivers/misc/vmw_balloon.c: fix typo in code comment
drivers/misc/vmw_balloon.c: determine page allocation flag can_sleep outside loop
w1: disable irqs in critical section
drivers/w1/w1_int.c: multiple masters used same init_name
drivers/power/ds2780_battery.c: fix deadlock upon insertion and removal
drivers/power/ds2780_battery.c: add a nolock function to w1 interface
drivers/power/ds2780_battery.c: create central point for calling w1 interface
w1: ds2760 and ds2780, use ida for id and ida_simple_get() to get it
pps gpio client: add missing dependency
pps: new client driver using GPIO
pps: default echo function
include/linux/dma-mapping.h: add dma_zalloc_coherent()
sysctl: make CONFIG_SYSCTL_SYSCALL default to n
sysctl: add support for poll()
RapidIO: documentation update
drivers/net/rionet.c: fix ethernet address macros for LE platforms
RapidIO: fix potential null deref in rio_setup_device()
RapidIO: add mport driver for Tsi721 bridge
...
Diffstat (limited to 'lib/idr.c')
-rw-r--r-- | lib/idr.c | 11 |
1 files changed, 7 insertions, 4 deletions
@@ -944,6 +944,7 @@ int ida_simple_get(struct ida *ida, unsigned int start, unsigned int end, { int ret, id; unsigned int max; + unsigned long flags; BUG_ON((int)start < 0); BUG_ON((int)end < 0); @@ -959,7 +960,7 @@ again: if (!ida_pre_get(ida, gfp_mask)) return -ENOMEM; - spin_lock(&simple_ida_lock); + spin_lock_irqsave(&simple_ida_lock, flags); ret = ida_get_new_above(ida, start, &id); if (!ret) { if (id > max) { @@ -969,7 +970,7 @@ again: ret = id; } } - spin_unlock(&simple_ida_lock); + spin_unlock_irqrestore(&simple_ida_lock, flags); if (unlikely(ret == -EAGAIN)) goto again; @@ -985,10 +986,12 @@ EXPORT_SYMBOL(ida_simple_get); */ void ida_simple_remove(struct ida *ida, unsigned int id) { + unsigned long flags; + BUG_ON((int)id < 0); - spin_lock(&simple_ida_lock); + spin_lock_irqsave(&simple_ida_lock, flags); ida_remove(ida, id); - spin_unlock(&simple_ida_lock); + spin_unlock_irqrestore(&simple_ida_lock, flags); } EXPORT_SYMBOL(ida_simple_remove); |