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sched/wait, fs/fscache: Convert wait_on_atomic_t() usage to the new wait_var_event() API

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The old wait_on_atomic_t() is going to get removed, use the more
flexible wait_var_event() API instead.

No change in functionality.

Signed-off-by: Peter Zijlstra (Intel) <[email protected]>
Cc: David Howells <[email protected]>
Cc: Linus Torvalds <[email protected]>
Cc: Mike Galbraith <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Thomas Gleixner <[email protected]>
Cc: [email protected]
Signed-off-by: Ingo Molnar <[email protected]>
This commit is contained in:
Peter Zijlstra 2018-03-15 11:43:43 +01:00 • committed by Ingo Molnar
commit dc5d4afbb0
2 changed files with 5 additions and 4 deletions
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7
fs/fscache/cookie.c
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@ -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)