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| author | Xiao Guangrong <[email protected]> | 2011-04-20 10:07:30 +0000 |
|---|---|---|
| committer | Chris Mason <[email protected]> | 2011-05-23 17:24:42 +0000 |
| commit | c9513edb0079f97749c2ac00c887a22c4ba44792 (patch) | |
| tree | 6b34bd7cdf5dcd882e61bf4912ae10b4de3b87dd /fs/jbd2/commit.c | |
| parent | Btrfs: fix bh leak on __btrfs_open_devices path (diff) | |
| download | kernel-c9513edb0079f97749c2ac00c887a22c4ba44792.tar.gz kernel-c9513edb0079f97749c2ac00c887a22c4ba44792.zip | |
Btrfs: fix the race between reading and updating devices
On btrfs_congested_fn and __unplug_io_fn paths, we should hold
device_list_mutex to avoid remove/add device path to
update fs_devices->devices
On __btrfs_close_devices and btrfs_prepare_sprout paths, the devices in
fs_devices->devices or fs_devices->devices is updated, so we should hold
the mutex to avoid the reader side to reach them
Signed-off-by: Xiao Guangrong <[email protected]>
Signed-off-by: Chris Mason <[email protected]>
Diffstat (limited to 'fs/jbd2/commit.c')
0 files changed, 0 insertions, 0 deletions