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 11/16] btrfs: btrfs_init_devices_late: use sprout device_list_mutex
Date: Sat, 5 Sep 2020 01:34:31 +0800 [thread overview]
Message-ID: <b4caf07e34e14e9d97146c2df1ec02e3761a890f.1599234146.git.anand.jain@oracle.com> (raw)
In-Reply-To: <cover.1599234146.git.anand.jain@oracle.com>
In a mounted sprout FS, all threads now are using the
sprout::device_list_mutex, and this is the only piece of code using
the seed::device_list_mutex. This patch converts to use the sprouts
fs_info->fs_devices->device_list_mutex.
The same reasoning holds true here, that device delete is holding
the sprout::device_list_mutex.
Signed-off-by: Anand Jain <anand.jain@oracle.com>
---
fs/btrfs/volumes.c | 4 +---
1 file changed, 1 insertion(+), 3 deletions(-)
diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c
index afdde29bce34..f70b79eaa76d 100644
--- a/fs/btrfs/volumes.c
+++ b/fs/btrfs/volumes.c
@@ -7193,16 +7193,14 @@ void btrfs_init_devices_late(struct btrfs_fs_info *fs_info)
mutex_lock(&fs_devices->device_list_mutex);
list_for_each_entry(device, &fs_devices->devices, dev_list)
device->fs_info = fs_info;
- mutex_unlock(&fs_devices->device_list_mutex);
list_for_each_entry(seed_devs, &fs_devices->seed_list, seed_list) {
- mutex_lock(&seed_devs->device_list_mutex);
list_for_each_entry(device, &seed_devs->devices, dev_list)
device->fs_info = fs_info;
- mutex_unlock(&seed_devs->device_list_mutex);
seed_devs->fs_info = fs_info;
}
+ mutex_unlock(&fs_devices->device_list_mutex);
}
static u64 btrfs_dev_stats_value(const struct extent_buffer *eb,
--
2.25.1
next prev 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 ` Anand Jain [this message]
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 ` [PATCH 13/16] btrfs: cleanup btrfs_remove_chunk Anand Jain
2020-09-09 10:50 ` 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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