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fs/locks: split out __locks_wake_up_blocks().

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This functionality will be useful in future patches, so
split it out from locks_wake_up_blocks().

Signed-off-by: NeilBrown <neilb@suse.com>
Reviewed-by: J. Bruce Fields <bfields@redhat.com>
Signed-off-by: Jeff Layton <jlayton@kernel.org>
This commit is contained in:
NeilBrown
2018-11-30 10:04:08 +11:00
committed by Jeff Layton
parent ada5c1da86
commit ad6bbd8b18
1 changed files with 16 additions and 11 deletions
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27
fs/locks.c
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@@ -672,6 +672,21 @@ static void __locks_delete_block(struct file_lock *waiter)
waiter->fl_blocker = NULL; waiter->fl_blocker = NULL;
} }
static void __locks_wake_up_blocks(struct file_lock *blocker)
{
while (!list_empty(&blocker->fl_blocked_requests)) {
struct file_lock *waiter;
waiter = list_first_entry(&blocker->fl_blocked_requests,
struct file_lock, fl_blocked_member);
__locks_delete_block(waiter);
if (waiter->fl_lmops && waiter->fl_lmops->lm_notify)
waiter->fl_lmops->lm_notify(waiter);
else
wake_up(&waiter->fl_wait);
}
}
static void locks_delete_block(struct file_lock *waiter) static void locks_delete_block(struct file_lock *waiter)
{ {
spin_lock(&blocked_lock_lock); spin_lock(&blocked_lock_lock);
@@ -727,17 +742,7 @@ static void locks_wake_up_blocks(struct file_lock *blocker)
return; return;
spin_lock(&blocked_lock_lock); spin_lock(&blocked_lock_lock);
while (!list_empty(&blocker->fl_blocked_requests)) { __locks_wake_up_blocks(blocker);
struct file_lock *waiter;
waiter = list_first_entry(&blocker->fl_blocked_requests,
struct file_lock, fl_blocked_member);
__locks_delete_block(waiter);
if (waiter->fl_lmops && waiter->fl_lmops->lm_notify)
waiter->fl_lmops->lm_notify(waiter);
else
wake_up(&waiter->fl_wait);
}
spin_unlock(&blocked_lock_lock); spin_unlock(&blocked_lock_lock);
} }