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authorTejun Heo <tj@kernel.org>2013-02-27 17:04:56 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2013-02-27 19:10:19 -0800
commitee94d523bf92d3b8b2de166943d48ac7fd695e10 (patch)
tree841fc7212003a43da67a7da6eee05dbe7556b742 /kernel
parent0e9c3be20d88aa5ed13fde4ece50f45eb96824ad (diff)
downloadvexpress-lsk-ee94d523bf92d3b8b2de166943d48ac7fd695e10.tar.gz
posix-timers: convert to idr_alloc()
Convert to the much saner new idr interface. Signed-off-by: Tejun Heo <tj@kernel.org> Cc: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'kernel')
-rw-r--r--kernel/posix-timers.c18
1 files changed, 8 insertions, 10 deletions
diff --git a/kernel/posix-timers.c b/kernel/posix-timers.c
index 7edfe4b901e..6edbb2c55c2 100644
--- a/kernel/posix-timers.c
+++ b/kernel/posix-timers.c
@@ -552,24 +552,22 @@ SYSCALL_DEFINE3(timer_create, const clockid_t, which_clock,
return -EAGAIN;
spin_lock_init(&new_timer->it_lock);
- retry:
- if (unlikely(!idr_pre_get(&posix_timers_id, GFP_KERNEL))) {
- error = -EAGAIN;
- goto out;
- }
+
+ idr_preload(GFP_KERNEL);
spin_lock_irq(&idr_lock);
- error = idr_get_new(&posix_timers_id, new_timer, &new_timer_id);
+ error = idr_alloc(&posix_timers_id, new_timer, 0, 0, GFP_NOWAIT);
spin_unlock_irq(&idr_lock);
- if (error) {
- if (error == -EAGAIN)
- goto retry;
+ idr_preload_end();
+ if (error < 0) {
/*
* Weird looking, but we return EAGAIN if the IDR is
* full (proper POSIX return value for this)
*/
- error = -EAGAIN;
+ if (error == -ENOSPC)
+ error = -EAGAIN;
goto out;
}
+ new_timer_id = error;
it_id_set = IT_ID_SET;
new_timer->it_id = (timer_t) new_timer_id;