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[for-4.17,19/20] bcache: Reduce the number of sparse complaints about lock imbalances

Message ID 20180319003633.27225-20-mlyle@lyle.org (mailing list archive)
State New, archived
Headers show

Commit Message

Michael Lyle March 19, 2018, 12:36 a.m. UTC 
From: Bart Van Assche <bart.vanassche@wdc.com>

Add more annotations for sparse to inform it about which functions do
not have the same number of spin_lock() and spin_unlock() calls.

Signed-off-by: Bart Van Assche <bart.vanassche@wdc.com>
Reviewed-by: Michael Lyle <mlyle@lyle.org>
---
 drivers/md/bcache/journal.c | 2 ++
 1 file changed, 2 insertions(+)
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Patch

diff --git a/drivers/md/bcache/journal.c b/drivers/md/bcache/journal.c
index acd0e5c074dd..18f1b5239620 100644
--- a/drivers/md/bcache/journal.c
+++ b/drivers/md/bcache/journal.c
@@ -594,6 +594,7 @@  static void journal_write_done(struct closure *cl)
 }
 
 static void journal_write_unlock(struct closure *cl)
+	__releases(&c->journal.lock)
 {
 	struct cache_set *c = container_of(cl, struct cache_set, journal.io);
 
@@ -705,6 +706,7 @@  static void journal_try_write(struct cache_set *c)
 
 static struct journal_write *journal_wait_for_write(struct cache_set *c,
 						    unsigned nkeys)
+	__acquires(&c->journal.lock)
 {
 	size_t sectors;
 	struct closure cl;