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| author | Chris Mason | 2008-06-12 20:46:17 +0200 |
|---|---|---|
| committer | Chris Mason | 2008-09-25 17:04:03 +0200 |
| commit | 1cc127b5d1b71453091859301de4a7dd6ee96fa8 (patch) | |
| tree | cb1280305a04eb5e6838f91781e668e3bdeed208 /fs/btrfs/volumes.c | |
| parent | BTRFS_IOC_TRANS_START should be privilegued (diff) | |
| download | kernel-qcow2-linux-1cc127b5d1b71453091859301de4a7dd6ee96fa8.tar.gz kernel-qcow2-linux-1cc127b5d1b71453091859301de4a7dd6ee96fa8.tar.xz kernel-qcow2-linux-1cc127b5d1b71453091859301de4a7dd6ee96fa8.zip | |
Btrfs: Add a thread pool just for submit_bio
If a bio submission is after a lock holder waiting for the bio
on the work queue, it is possible to deadlock. Move the bios
into their own pool.
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Diffstat (limited to 'fs/btrfs/volumes.c')
| -rw-r--r-- | fs/btrfs/volumes.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c index c57458ce6339..ba3968571024 100644 --- a/fs/btrfs/volumes.c +++ b/fs/btrfs/volumes.c @@ -2112,7 +2112,8 @@ int schedule_bio(struct btrfs_root *root, struct btrfs_device *device, spin_unlock(&device->io_lock); if (should_queue) - btrfs_queue_worker(&root->fs_info->workers, &device->work); + btrfs_queue_worker(&root->fs_info->submit_workers, + &device->work); return 0; } |