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Commit 368ecade authored by Christoph Hellwig's avatar Christoph Hellwig Committed by Song Liu
Browse files

md: add __acquires/__releases annotations to (un)lock_two_stripes 



This tells sparse that we acquire/release the two stripe locks and
avoids a warning.

Signed-off-by: default avatarChristoph Hellwig <hch@lst.de>
Signed-off-by: default avatarSong Liu <songliubraving@fb.com>
parent 2b598ee5

drivers/md/raid5.c

+4 −0
Original line number Diff line number Diff line
@@ -711,6 +711,8 @@ static bool is_full_stripe_write(struct stripe_head *sh) 
}



static void lock_two_stripes(struct stripe_head *sh1, struct stripe_head *sh2)

		__acquires(&sh1->stripe_lock)

		__acquires(&sh2->stripe_lock)

{

	if (sh1 > sh2) {

		spin_lock_irq(&sh2->stripe_lock);
@@ -722,6 +724,8 @@ static void lock_two_stripes(struct stripe_head *sh1, struct stripe_head *sh2) 
}



static void unlock_two_stripes(struct stripe_head *sh1, struct stripe_head *sh2)

		__releases(&sh1->stripe_lock)

		__releases(&sh2->stripe_lock)

{

	spin_unlock(&sh1->stripe_lock);

	spin_unlock_irq(&sh2->stripe_lock);