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staging: lustre: statahead: remove incorrect test on agl_list_empty()

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Including agl_list_empty() in the wait_event_idle() condition
is pointless as the body of the loop doesn't do anything
about the agl list.
So if the list wasn't empty, the while loop would spin
indefinitely.

The test was removed in the lustre-release commit
672ab0e00d61 ("LU-3270 statahead: small fixes and cleanup"),
but not in the Linux commit 5231f7651c ("staging: lustre:
statahead: small fixes and cleanup").

Fixes: 5231f7651c ("staging: lustre: statahead: small fixes and cleanup")
Signed-off-by: NeilBrown <neilb@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
NeilBrown 2018-03-02 10:31:25 +11:00 committed by Greg Kroah-Hartman
parent 2fab9faf9b
commit f689c72d7d
1 changed files with 0 additions and 1 deletions
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drivers/staging/lustre/lustre/llite/statahead.c
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@ -1124,7 +1124,6 @@ static int ll_statahead_thread(void *arg)
while (thread_is_running(sa_thread)) {
wait_event_idle(sa_thread->t_ctl_waitq,
sa_has_callback(sai) ||
!agl_list_empty(sai) ||
!thread_is_running(sa_thread));
sa_handle_callback(sai);