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fsnotify: use a mutex instead of a spinlock to protect a groups mark list

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Replaces the groups mark_lock spinlock with a mutex. Using a mutex instead
of a spinlock results in more flexibility (i.e it allows to sleep while the
lock is held).

Signed-off-by: Lino Sanfilippo <LinoSanfilippo@gmx.de>
Signed-off-by: Eric Paris <eparis@redhat.com>
This commit is contained in:
Lino Sanfilippo 2011-06-14 17:29:50 +02:00 • committed by Eric Paris
parent 6dfbd14994
commit 986ab09807
5 changed files with 15 additions and 15 deletions
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2
include/linux/fsnotify_backend.h
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@ -141,7 +141,7 @@ struct fsnotify_group {
unsigned int priority;
/* stores all fastpath marks assoc with this group so they can be cleaned on unregister */
spinlock_t mark_lock; /* protect marks_list */
struct mutex mark_mutex; /* protect marks_list */
atomic_t num_marks; /* 1 for each mark and 1 for not being
* past the point of no return when freeing
* a group */