[PATCH 02/12] fs/locks: split out __locks_wake_up_blocks().

NeilBrown
2018-11-05T01:31:54Z

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

Signed-off-by: NeilBrown <neilb@suse.com>
---
fs/locks.c | 27 ++++++++++++++++-----------
1 file changed, 16 insertions(+), 11 deletions(-)

diff --git a/fs/locks.c b/fs/locks.c
index a6c6d601286c..b8f33792a0a6 100644
--- a/fs/locks.c
+++ b/fs/locks.c
@@ -672,6 +672,21 @@ static void __locks_delete_block(struct file_lock *waiter)
waiter->fl_blocker = NULL;
}

+static void __locks_wake_up_blocks(struct file_lock *blocker)
+{
+ while (!list_empty(&blocker->fl_blocked)) {
+ struct file_lock *waiter;
+
+ waiter = list_first_entry(&blocker->fl_blocked,
+ struct file_lock, fl_block);
+ __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)
{
spin_lock(&blocked_lock_lock);
@@ -726,17 +741,7 @@ static void locks_wake_up_blocks(struct file_lock *blocker)
return;

spin_lock(&blocked_lock_lock);
- while (!list_empty(&blocker->fl_blocked)) {
- struct file_lock *waiter;
-
- waiter = list_first_entry(&blocker->fl_blocked,
- struct file_lock, fl_block);
- __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);
- }
+ __locks_wake_up_blocks(blocker);
spin_unlock(&blocked_lock_lock);
}