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| author | Yan Zheng <zheng.yan@oracle.com> | 2009-07-28 12:41:57 (GMT) |
|---|---|---|
| committer | Chris Mason <chris.mason@oracle.com> | 2009-07-28 12:41:57 (GMT) |
| commit | f25784b35f590c81d5fb8245a8cd45e1afb6f1b2 (patch) | |
| tree | 71306747041b6e4a5eaccc5028c770fed29b3f87 /fs | |
| parent | 68b38550ddbea13d296184bf69edff387618b1d3 (diff) | |
| download | linux-f25784b35f590c81d5fb8245a8cd45e1afb6f1b2.tar.xz | |
Btrfs: Fix async caching interaction with unmount
- don't stop the caching thread until btrfs_commit_super return.
- if caching is interrupted by umount, set last to (u64)-1.
otherwise the un-scanned range of block group will be considered
as free extent.
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/btrfs/disk-io.c | 3 | ||||
| -rw-r--r-- | fs/btrfs/extent-tree.c | 4 |
2 files changed, 6 insertions, 1 deletions
diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c index c658397..3a9b887 100644 --- a/fs/btrfs/disk-io.c +++ b/fs/btrfs/disk-io.c @@ -2317,6 +2317,9 @@ int close_ctree(struct btrfs_root *root) printk(KERN_ERR "btrfs: commit super ret %d\n", ret); } + fs_info->closing = 2; + smp_mb(); + if (fs_info->delalloc_bytes) { printk(KERN_INFO "btrfs: at unmount delalloc count %llu\n", (unsigned long long)fs_info->delalloc_bytes); diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c index 08188f1..fadf69a 100644 --- a/fs/btrfs/extent-tree.c +++ b/fs/btrfs/extent-tree.c @@ -288,8 +288,10 @@ again: while (1) { smp_mb(); - if (block_group->fs_info->closing) + if (block_group->fs_info->closing > 1) { + last = (u64)-1; break; + } leaf = path->nodes[0]; slot = path->slots[0]; |