| commit | b415c49a864dab8ee90713833d642dd461eccae9 | |
| author | Oleg Nesterov <oleg@redhat.com> | |
| Thu, 11 Jun 2009 12:12:55 +0000 (11 13:12 +0100) | ||
| committer | Linus Torvalds <torvalds@linux-foundation.org> | |
| Thu, 11 Jun 2009 18:26:38 +0000 (11 11:26 -0700) | ||
| tree | f5e763afdab9a43ff632993d7be49e73d8a6df6c | treesnapshot (tar.gz zip) |
| parent | 6adc74b7d03c06a8e15d51fe33c3d924ada9271a | commitdiff |
slow_work_thread() should do the exclusive wait
slow_work_thread() sleeps on slow_work_thread_wq without WQ_FLAG_EXCLUSIVE,
this means that slow_work_enqueue()->__wake_up(nr_exclusive => 1) wakes up all
kslowd threads. This is not what we want, so we change slow_work_thread() to
use prepare_to_wait_exclusive() instead.
Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
slow_work_thread() sleeps on slow_work_thread_wq without WQ_FLAG_EXCLUSIVE,
this means that slow_work_enqueue()->__wake_up(nr_exclusive => 1) wakes up all
kslowd threads. This is not what we want, so we change slow_work_thread() to
use prepare_to_wait_exclusive() instead.
Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| kernel/slow-work.c | diffblobblamehistory |