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From: Anand Jain <anand.jain@oracle.com>
To: linux-btrfs@vger.kernel.org
Cc: dsterba@suse.com, josef@toxicpanda.com, nborisov@suse.com
Subject: [PATCH 13/16] btrfs: cleanup btrfs_remove_chunk
Date: Sat,  5 Sep 2020 01:34:33 +0800	[thread overview]
Message-ID: <731ff89d22332c3e344f9ea4ca28012f01d50656.1599234146.git.anand.jain@oracle.com> (raw)
In-Reply-To: <cover.1599234146.git.anand.jain@oracle.com>

In the function btrfs_remove_chunk() remove the local variable
%fs_devices, instead use the assigned pointer directly.

Signed-off-by: Anand Jain <anand.jain@oracle.com>
Reviewed-by: Nikolay Borisov <nborisov@suse.com>
---
 fs/btrfs/volumes.c | 9 ++++-----
 1 file changed, 4 insertions(+), 5 deletions(-)

diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c
index f70b79eaa76d..f16c4a854a6c 100644
--- a/fs/btrfs/volumes.c
+++ b/fs/btrfs/volumes.c
@@ -2922,7 +2922,6 @@ int btrfs_remove_chunk(struct btrfs_trans_handle *trans, u64 chunk_offset)
 	struct map_lookup *map;
 	u64 dev_extent_len = 0;
 	int i, ret = 0;
-	struct btrfs_fs_devices *fs_devices = fs_info->fs_devices;
 
 	em = btrfs_get_chunk_map(fs_info, chunk_offset, 1);
 	if (IS_ERR(em)) {
@@ -2944,14 +2943,14 @@ int btrfs_remove_chunk(struct btrfs_trans_handle *trans, u64 chunk_offset)
 	 * a device replace operation that replaces the device object associated
 	 * with map stripes (dev-replace.c:btrfs_dev_replace_finishing()).
 	 */
-	mutex_lock(&fs_devices->device_list_mutex);
+	mutex_lock(&fs_info->fs_devices->device_list_mutex);
 	for (i = 0; i < map->num_stripes; i++) {
 		struct btrfs_device *device = map->stripes[i].dev;
 		ret = btrfs_free_dev_extent(trans, device,
 					    map->stripes[i].physical,
 					    &dev_extent_len);
 		if (ret) {
-			mutex_unlock(&fs_devices->device_list_mutex);
+			mutex_unlock(&fs_info->fs_devices->device_list_mutex);
 			btrfs_abort_transaction(trans, ret);
 			goto out;
 		}
@@ -2967,12 +2966,12 @@ int btrfs_remove_chunk(struct btrfs_trans_handle *trans, u64 chunk_offset)
 
 		ret = btrfs_update_device(trans, device);
 		if (ret) {
-			mutex_unlock(&fs_devices->device_list_mutex);
+			mutex_unlock(&fs_info->fs_devices->device_list_mutex);
 			btrfs_abort_transaction(trans, ret);
 			goto out;
 		}
 	}
-	mutex_unlock(&fs_devices->device_list_mutex);
+	mutex_unlock(&fs_info->fs_devices->device_list_mutex);
 
 	ret = btrfs_free_chunk(trans, chunk_offset);
 	if (ret) {
-- 
2.25.1


  parent reply	other threads:[~2020-09-04 18:10 UTC|newest]

Thread overview: 34+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-09-04 17:34 [PATCH v3 0/16] btrfs: seed fix null ptr, use only main device_list_mutex, and cleanups Anand Jain
2020-09-04 17:34 ` [PATCH 01/16] btrfs: fix put of uninitialized kobject after seed device delete Anand Jain
2020-09-07 11:29   ` Johannes Thumshirn
2020-09-07 11:30     ` Johannes Thumshirn
2020-09-07 11:57       ` Anand Jain
2020-09-07 15:09         ` Johannes Thumshirn
2020-09-08 15:47           ` David Sterba
2020-09-08 15:55   ` David Sterba
2020-09-04 17:34 ` [PATCH 02/16] btrfs: fix replace of seed device Anand Jain
2020-09-04 17:34 ` [PATCH 03/16] btrfs: add btrfs_sysfs_add_device helper Anand Jain
2020-09-04 17:34 ` [PATCH 04/16] btrfs: add btrfs_sysfs_remove_device helper Anand Jain
2020-09-07 15:51   ` Johannes Thumshirn
2020-09-04 17:34 ` [PATCH 05/16] btrfs: btrfs_sysfs_remove_devices_dir drop return value Anand Jain
2020-09-04 17:34 ` [PATCH 06/16] btrfs: refactor btrfs_sysfs_add_devices_dir Anand Jain
2020-09-04 17:34 ` [PATCH 07/16] btrfs: refactor btrfs_sysfs_remove_devices_dir Anand Jain
2020-09-04 17:34 ` [PATCH 08/16] btrfs: initialize sysfs devid and device link for seed device Anand Jain
2020-09-04 17:34 ` [PATCH 09/16] btrfs: handle fail path for btrfs_sysfs_add_fs_devices Anand Jain
2020-09-04 17:34 ` [PATCH 10/16] btrfs: reada: use sprout device_list_mutex Anand Jain
2020-09-04 17:34 ` [PATCH 11/16] btrfs: btrfs_init_devices_late: " Anand Jain
2020-09-04 17:34 ` [PATCH 12/16] btrfs: open code list_head pointer in btrfs_init_dev_replace_tgtdev Anand Jain
2020-09-04 17:34 ` Anand Jain [this message]
2020-09-09 10:50   ` [PATCH 13/16] btrfs: cleanup btrfs_remove_chunk David Sterba
2020-09-09 11:15     ` Anand Jain
2020-09-04 17:34 ` [PATCH 14/16] btrfs: cleanup btrfs_assign_next_active_device() Anand Jain
2020-09-04 17:34 ` [PATCH 15/16] btrfs: cleanup unnecessary goto in open_seed_device Anand Jain
2020-09-04 17:34 ` [PATCH 16/16] btrfs: btrfs_dev_replace_update_device_in_mapping_tree drop file global declare Anand Jain
2020-09-04 23:25 ` [PATCH v2 0/2] fstests: btrfs seed device device operation tests Anand Jain
2020-09-04 23:25   ` [PATCH v2 1/2] btrfs: add a test case for btrfs seed device delete Anand Jain
2020-10-15 15:45     ` Filipe Manana
2020-10-20 11:21       ` Anand Jain
2020-09-04 23:25   ` [PATCH 2/2] btrfs/163: replace sprout instead of seed Anand Jain
2020-10-15 15:49     ` Filipe Manana
2020-10-20 12:20       ` Anand Jain
2020-09-09 13:14 ` [PATCH v3 0/16] btrfs: seed fix null ptr, use only main device_list_mutex, and cleanups David Sterba

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