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| author | Qu Wenruo <quwenruo@cn.fujitsu.com> | 2016-01-19 10:23:03 +0800 |
|---|---|---|
| committer | David Sterba <dsterba@suse.com> | 2016-02-12 15:14:49 +0100 |
| commit | 96da09192cda57a356467bd7c91a3641a2e78490 (patch) | |
| tree | 7b9e18344074d9bf9c1d71fd6fb0670922937283 /fs/btrfs/ctree.h | |
| parent | 8dcddfa048de637c8bbfa20ffd22757aeab7c604 (diff) | |
| download | lwn-96da09192cda57a356467bd7c91a3641a2e78490.tar.gz lwn-96da09192cda57a356467bd7c91a3641a2e78490.zip | |
btrfs: Introduce new mount option to disable tree log replay
Introduce a new mount option "nologreplay" to co-operate with "ro" mount
option to get real readonly mount, like "norecovery" in ext* and xfs.
Since the new parse_options() need to check new flags at remount time,
so add a new parameter for parse_options().
Signed-off-by: Qu Wenruo <quwenruo@cn.fujitsu.com>
Reviewed-by: Chandan Rajendra <chandan@linux.vnet.ibm.com>
Tested-by: Austin S. Hemmelgarn <ahferroin7@gmail.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'fs/btrfs/ctree.h')
| -rw-r--r-- | fs/btrfs/ctree.h | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h index e39eeb99adc9..a79bb734f6c3 100644 --- a/fs/btrfs/ctree.h +++ b/fs/btrfs/ctree.h @@ -2250,6 +2250,7 @@ struct btrfs_ioctl_defrag_range_args { #define BTRFS_MOUNT_FRAGMENT_DATA (1 << 24) #define BTRFS_MOUNT_FRAGMENT_METADATA (1 << 25) #define BTRFS_MOUNT_FREE_SPACE_TREE (1 << 26) +#define BTRFS_MOUNT_NOLOGREPLAY (1 << 27) #define BTRFS_DEFAULT_COMMIT_INTERVAL (30) #define BTRFS_DEFAULT_MAX_INLINE (8192) @@ -4151,7 +4152,8 @@ void btrfs_sysfs_remove_mounted(struct btrfs_fs_info *fs_info); ssize_t btrfs_listxattr(struct dentry *dentry, char *buffer, size_t size); /* super.c */ -int btrfs_parse_options(struct btrfs_root *root, char *options); +int btrfs_parse_options(struct btrfs_root *root, char *options, + unsigned long new_flags); int btrfs_sync_fs(struct super_block *sb, int wait); #ifdef CONFIG_PRINTK |