[PATCH -next v2 5/7] md: factor out a helper rdev_is_spare() from remove_and_add_spares()

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From: Yu Kuai <yukuai3@xxxxxxxxxx>

There are no functional changes, just to make the code simpler and
prepare to delay remove_and_add_spares() to md_start_sync().

Signed-off-by: Yu Kuai <yukuai3@xxxxxxxxxx>
---
 drivers/md/md.c | 15 ++++++++++-----
 1 file changed, 10 insertions(+), 5 deletions(-)

diff --git a/drivers/md/md.c b/drivers/md/md.c
index ea091eef23d1..6baaa4d314b3 100644
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -9169,6 +9169,14 @@ static bool rdev_removeable(struct md_rdev *rdev)
 	return true;
 }
 
+static bool rdev_is_spare(struct md_rdev *rdev)
+{
+	return !test_bit(Candidate, &rdev->flags) && rdev->raid_disk >= 0 &&
+	       !test_bit(In_sync, &rdev->flags) &&
+	       !test_bit(Journal, &rdev->flags) &&
+	       !test_bit(Faulty, &rdev->flags);
+}
+
 static int remove_and_add_spares(struct mddev *mddev,
 				 struct md_rdev *this)
 {
@@ -9217,13 +9225,10 @@ static int remove_and_add_spares(struct mddev *mddev,
 	rdev_for_each(rdev, mddev) {
 		if (this && this != rdev)
 			continue;
+		if (rdev_is_spare(rdev))
+			spares++;
 		if (test_bit(Candidate, &rdev->flags))
 			continue;
-		if (rdev->raid_disk >= 0 &&
-		    !test_bit(In_sync, &rdev->flags) &&
-		    !test_bit(Journal, &rdev->flags) &&
-		    !test_bit(Faulty, &rdev->flags))
-			spares++;
 		if (rdev->raid_disk >= 0)
 			continue;
 		if (test_bit(Faulty, &rdev->flags))
-- 
2.39.2




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