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From: NeilBrown <neilb@suse.com>
To: Shaohua Li <shli@kernel.org>
Cc: linux-raid@vger.kernel.org
Subject: [md PATCH 4/5] md: use mddev_suspend/resume instead of ->quiesce()
Date: Tue, 17 Oct 2017 13:46:43 +1100	[thread overview]
Message-ID: <150820840353.1646.9951955640818765437.stgit@noble> (raw)
In-Reply-To: <150820826980.1646.6380214598725492144.stgit@noble>

mddev_suspend() is a more general interface than
calling ->quiesce() and is so more extensible.  A
future patch will make use of this.

Signed-off-by: NeilBrown <neilb@suse.com>
---
 drivers/md/md.c |   24 ++++++++++++------------
 1 file changed, 12 insertions(+), 12 deletions(-)

diff --git a/drivers/md/md.c b/drivers/md/md.c
index f8d0e41120cb..60a5022bd9bb 100644
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -4864,8 +4864,8 @@ suspend_lo_store(struct mddev *mddev, const char *buf, size_t len)
 		mddev->pers->quiesce(mddev, 2);
 	} else {
 		/* Expanding suspended region - need to wait */
-		mddev->pers->quiesce(mddev, 1);
-		mddev->pers->quiesce(mddev, 0);
+		mddev_suspend(mddev);
+		mddev_resume(mddev);
 	}
 	err = 0;
 unlock:
@@ -4908,8 +4908,8 @@ suspend_hi_store(struct mddev *mddev, const char *buf, size_t len)
 		mddev->pers->quiesce(mddev, 2);
 	} else {
 		/* Expanding suspended region - need to wait */
-		mddev->pers->quiesce(mddev, 1);
-		mddev->pers->quiesce(mddev, 0);
+		mddev_suspend(mddev);
+		mddev_resume(mddev);
 	}
 	err = 0;
 unlock:
@@ -6640,7 +6640,7 @@ static int set_bitmap_file(struct mddev *mddev, int fd)
 			struct bitmap *bitmap;
 
 			bitmap = bitmap_create(mddev, -1);
-			mddev->pers->quiesce(mddev, 1);
+			mddev_suspend(mddev);
 			if (!IS_ERR(bitmap)) {
 				mddev->bitmap = bitmap;
 				err = bitmap_load(mddev);
@@ -6650,11 +6650,11 @@ static int set_bitmap_file(struct mddev *mddev, int fd)
 				bitmap_destroy(mddev);
 				fd = -1;
 			}
-			mddev->pers->quiesce(mddev, 0);
+			mddev_resume(mddev);
 		} else if (fd < 0) {
-			mddev->pers->quiesce(mddev, 1);
+			mddev_suspend(mddev);
 			bitmap_destroy(mddev);
-			mddev->pers->quiesce(mddev, 0);
+			mddev_resume(mddev);
 		}
 	}
 	if (fd < 0) {
@@ -6940,7 +6940,7 @@ static int update_array_info(struct mddev *mddev, mdu_array_info_t *info)
 			mddev->bitmap_info.space =
 				mddev->bitmap_info.default_space;
 			bitmap = bitmap_create(mddev, -1);
-			mddev->pers->quiesce(mddev, 1);
+			mddev_suspend(mddev);
 			if (!IS_ERR(bitmap)) {
 				mddev->bitmap = bitmap;
 				rv = bitmap_load(mddev);
@@ -6948,7 +6948,7 @@ static int update_array_info(struct mddev *mddev, mdu_array_info_t *info)
 				rv = PTR_ERR(bitmap);
 			if (rv)
 				bitmap_destroy(mddev);
-			mddev->pers->quiesce(mddev, 0);
+			mddev_resume(mddev);
 		} else {
 			/* remove the bitmap */
 			if (!mddev->bitmap) {
@@ -6971,9 +6971,9 @@ static int update_array_info(struct mddev *mddev, mdu_array_info_t *info)
 				mddev->bitmap_info.nodes = 0;
 				md_cluster_ops->leave(mddev);
 			}
-			mddev->pers->quiesce(mddev, 1);
+			mddev_suspend(mddev);
 			bitmap_destroy(mddev);
-			mddev->pers->quiesce(mddev, 0);
+			mddev_resume(mddev);
 			mddev->bitmap_info.offset = 0;
 		}
 	}



      parent reply	other threads:[~2017-10-17  2:46 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-10-17  2:46 [md PATCH 0/5] Address deadlock associated with setting suspend_lo NeilBrown
2017-10-17  2:46 ` [md PATCH 5/5] md: allow metadata update while suspending NeilBrown
2017-10-17  2:46 ` [md PATCH 2/5] md: don't call bitmap_create() while array is quiesced NeilBrown
2017-10-17  2:46 ` [md PATCH 3/5] md: move suspend_hi/lo handling into core md code NeilBrown
2017-10-18  6:16   ` Shaohua Li
2017-10-18  7:40     ` NeilBrown
2017-10-19  1:49       ` [md PATCH 6/5] md: remove special meaning of ->quiesce(.., 2) NeilBrown
2017-10-17  2:46 ` [md PATCH 1/5] md: always hold reconfig_mutex when calling mddev_suspend() NeilBrown
2017-10-18  6:11   ` Shaohua Li
2017-10-18  7:35     ` NeilBrown
2017-10-19  1:17       ` [md PATCH 1/5 v2] " NeilBrown
2017-10-19  3:45         ` Shaohua Li
2017-10-19  6:29           ` NeilBrown
2017-10-20  4:37             ` Shaohua Li
2017-10-23  0:02               ` NeilBrown
2017-10-23  1:48                 ` Shaohua Li
2017-10-17  2:46 ` NeilBrown [this message]

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