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authorJan Kara <jack@suse.cz>2014-12-13 03:58:39 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2014-12-13 23:42:53 +0300
commit37d469e7673a663cbf38360beb1eaa3224c9d272 (patch)
treeb980de73eb2a32cb759d57792c0028e634350b80 /fs/notify
parent0809ab69a2782afac8c4d7f3d35cd123050aab9a (diff)
downloadlinux-37d469e7673a663cbf38360beb1eaa3224c9d272.tar.xz
fsnotify: remove destroy_list from fsnotify_mark
destroy_list is used to track marks which still need waiting for srcu period end before they can be freed. However by the time mark is added to destroy_list it isn't in group's list of marks anymore and thus we can reuse fsnotify_mark->g_list for queueing into destroy_list. This saves two pointers for each fsnotify_mark. Signed-off-by: Jan Kara <jack@suse.cz> Cc: Eric Paris <eparis@redhat.com> Cc: Heinrich Schuchardt <xypron.glpk@gmx.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs/notify')
-rw-r--r--fs/notify/mark.c8
1 files changed, 4 insertions, 4 deletions
diff --git a/fs/notify/mark.c b/fs/notify/mark.c
index 3942d5c9eb8d..92e48c70f0f0 100644
--- a/fs/notify/mark.c
+++ b/fs/notify/mark.c
@@ -161,7 +161,7 @@ void fsnotify_destroy_mark_locked(struct fsnotify_mark *mark,
mutex_unlock(&group->mark_mutex);
spin_lock(&destroy_lock);
- list_add(&mark->destroy_list, &destroy_list);
+ list_add(&mark->g_list, &destroy_list);
spin_unlock(&destroy_lock);
wake_up(&destroy_waitq);
/*
@@ -370,7 +370,7 @@ err:
spin_unlock(&mark->lock);
spin_lock(&destroy_lock);
- list_add(&mark->destroy_list, &destroy_list);
+ list_add(&mark->g_list, &destroy_list);
spin_unlock(&destroy_lock);
wake_up(&destroy_waitq);
@@ -469,8 +469,8 @@ static int fsnotify_mark_destroy(void *ignored)
synchronize_srcu(&fsnotify_mark_srcu);
- list_for_each_entry_safe(mark, next, &private_destroy_list, destroy_list) {
- list_del_init(&mark->destroy_list);
+ list_for_each_entry_safe(mark, next, &private_destroy_list, g_list) {
+ list_del_init(&mark->g_list);
fsnotify_put_mark(mark);
}