This patch depends on patch 02.
The Faulty flag is required for the if statement to be true.
A rdev in Faulty state does not issue I/O commands.
So, nr_pending is also not increased.
Therefore, decrement and zero check of nr_pending can be separated and still be consistent.
Signed-off-by: Keisuke TADA <keisuke1.tada@xxxxxxxxxx>
Signed-off-by: Toshifumi OHTAKE <toshifumi.ootake@xxxxxxxxxx>
---
drivers/md/md.h | 14 ++++++--------
1 file changed, 6 insertions(+), 8 deletions(-)
diff --git a/drivers/md/md.h b/drivers/md/md.h
index f57a894b924b..2eaf8606af9e 100644
--- a/drivers/md/md.h
+++ b/drivers/md/md.h
@@ -236,11 +236,6 @@ static inline unsigned int nr_pending_read(struct md_rdev *rdev)
return atomic_read(&rdev->nr_pending);
}
-static inline bool nr_pending_dec_and_test(struct md_rdev *rdev)
-{
- return atomic_dec_and_test(&rdev->nr_pending);
-}
-
static inline int is_badblock(struct md_rdev *rdev, sector_t s, int sectors,
sector_t *first_bad, int *bad_sectors)
{
@@ -876,9 +871,12 @@ static inline bool is_rdev_broken(struct md_rdev *rdev)
static inline void rdev_dec_pending(struct md_rdev *rdev, struct mddev *mddev)
{
int faulty = test_bit(Faulty, &rdev->flags);
- if (nr_pending_dec_and_test(rdev) && faulty) {
- set_bit(MD_RECOVERY_NEEDED, &mddev->recovery);
- md_wakeup_thread(mddev->thread);
+ nr_pending_dec(rdev);
+ if (faulty) {
+ if (nr_pending_is_zero(rdev)) {
+ set_bit(MD_RECOVERY_NEEDED, &mddev->recovery);
+ md_wakeup_thread(mddev->thread);
+ }
}
}
--
2.34.1
