diff options
| author | Boris Burkov <boris@bur.io> | 2020-11-19 02:06:20 +0300 |
|---|---|---|
| committer | David Sterba <dsterba@suse.com> | 2020-12-09 21:16:08 +0300 |
| commit | 8cd2908846d11af9b33246171f71a923d35eb3c4 (patch) | |
| tree | e221c6b5f55b927b0b51c00a64b0a519edc46095 /fs/btrfs/disk-io.h | |
| parent | 5011139a4718455a6cd6214fd84e6f8500fd3874 (diff) | |
| download | linux-8cd2908846d11af9b33246171f71a923d35eb3c4.tar.xz | |
btrfs: clear oneshot options on mount and remount
Some options only apply during mount time and are cleared at the end
of mount. For now, the example is USEBACKUPROOT, but CLEAR_CACHE also
fits the bill, and this is a preparation patch for also clearing that
option.
One subtlety is that the current code only resets USEBACKUPROOT on rw
mounts, but the option is meaningfully "consumed" by a ro mount, so it
feels appropriate to clear in that case as well. A subsequent read-write
remount would not go through open_ctree, which is the only place that
checks the option, so the change should be benign.
Reviewed-by: Josef Bacik <josef@toxicpanda.com>
Signed-off-by: Boris Burkov <boris@bur.io>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'fs/btrfs/disk-io.h')
| -rw-r--r-- | fs/btrfs/disk-io.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/fs/btrfs/disk-io.h b/fs/btrfs/disk-io.h index b509d1a490e7..7b3ecad88d7e 100644 --- a/fs/btrfs/disk-io.h +++ b/fs/btrfs/disk-io.h @@ -50,6 +50,7 @@ struct extent_buffer *btrfs_find_create_tree_block( u64 bytenr, u64 owner_root, int level); void btrfs_clean_tree_block(struct extent_buffer *buf); +void btrfs_clear_oneshot_options(struct btrfs_fs_info *fs_info); int btrfs_start_pre_rw_mount(struct btrfs_fs_info *fs_info); int __cold open_ctree(struct super_block *sb, struct btrfs_fs_devices *fs_devices, |