md: remove sparse warnings about lock context.

There was a real error here on a failure path where we
incorrectly call rcu_read_unlock.


Signed-off-by: NeilBrown <neilb@suse.de>
This commit is contained in:
NeilBrown 2009-09-23 18:06:44 +10:00
parent a9f326ebf2
commit ee305acef5

View File

@ -108,6 +108,8 @@ static void bitmap_free_page(struct bitmap *bitmap, unsigned char *page)
* allocated while we're using it
*/
static int bitmap_checkpage(struct bitmap *bitmap, unsigned long page, int create)
__releases(bitmap->lock)
__acquires(bitmap->lock)
{
unsigned char *mappage;
@ -325,7 +327,6 @@ static int write_sb_page(struct bitmap *bitmap, struct page *page, int wait)
return 0;
bad_alignment:
rcu_read_unlock();
return -EINVAL;
}
@ -1207,6 +1208,8 @@ void bitmap_daemon_work(struct bitmap *bitmap)
static bitmap_counter_t *bitmap_get_counter(struct bitmap *bitmap,
sector_t offset, int *blocks,
int create)
__releases(bitmap->lock)
__acquires(bitmap->lock)
{
/* If 'create', we might release the lock and reclaim it.
* The lock must have been taken with interrupts enabled.