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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2018-04-02 16:50:39 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2018-04-02 16:50:39 -0700 |
| commit | ce6eba3dba366b607c0a363c7cdbd4ee8fcc6434 (patch) | |
| tree | 7e8bb291ce843457c52659dfa4a5d14444c91c35 /fs/fscache/cookie.c | |
| parent | a5532439ebab93e47784effb96aafa7d7ba4b760 (diff) | |
| parent | b3fc5c9bb373661224906bf434c09ca0de032e82 (diff) | |
Merge branch 'sched-wait-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull wait_var_event updates from Ingo Molnar:
"This introduces the new wait_var_event() API, which is a more flexible
waiting primitive than wait_on_atomic_t().
All wait_on_atomic_t() users are migrated over to the new API and
wait_on_atomic_t() is removed. The migration fixes one bug and should
result in no functional changes for the other usecases"
* 'sched-wait-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
sched/wait: Improve __var_waitqueue() code generation
sched/wait: Remove the wait_on_atomic_t() API
sched/wait, arch/mips: Fix and convert wait_on_atomic_t() usage to the new wait_var_event() API
sched/wait, fs/ocfs2: Convert wait_on_atomic_t() usage to the new wait_var_event() API
sched/wait, fs/nfs: Convert wait_on_atomic_t() usage to the new wait_var_event() API
sched/wait, fs/fscache: Convert wait_on_atomic_t() usage to the new wait_var_event() API
sched/wait, fs/btrfs: Convert wait_on_atomic_t() usage to the new wait_var_event() API
sched/wait, fs/afs: Convert wait_on_atomic_t() usage to the new wait_var_event() API
sched/wait, drivers/media: Convert wait_on_atomic_t() usage to the new wait_var_event() API
sched/wait, drivers/drm: Convert wait_on_atomic_t() usage to the new wait_var_event() API
sched/wait: Introduce wait_var_event()
Diffstat (limited to 'fs/fscache/cookie.c')
| -rw-r--r-- | fs/fscache/cookie.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/fs/fscache/cookie.c b/fs/fscache/cookie.c index ff84258132bb..d705125665f0 100644 --- a/fs/fscache/cookie.c +++ b/fs/fscache/cookie.c @@ -557,9 +557,10 @@ void __fscache_disable_cookie(struct fscache_cookie *cookie, bool invalidate) * n_active reaches 0). This makes sure outstanding reads and writes * have completed. */ - if (!atomic_dec_and_test(&cookie->n_active)) - wait_on_atomic_t(&cookie->n_active, atomic_t_wait, - TASK_UNINTERRUPTIBLE); + if (!atomic_dec_and_test(&cookie->n_active)) { + wait_var_event(&cookie->n_active, + !atomic_read(&cookie->n_active)); + } /* Make sure any pending writes are cancelled. */ if (cookie->def->type != FSCACHE_COOKIE_TYPE_INDEX) |