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| author | Ilya Dryomov <idryomov@gmail.com> | 2012-01-16 22:04:47 +0200 |
|---|---|---|
| committer | Ilya Dryomov <idryomov@gmail.com> | 2012-01-16 22:04:47 +0200 |
| commit | c9e9f97bdfb64d06e9520f8e4f37674ac21cc9bc (patch) | |
| tree | 22d695a7a461068c773b327e5c89a045ade5d8a3 /fs/btrfs/disk-io.c | |
| parent | 10ea00f55a07f8f9536d9112b95108a86f700bab (diff) | |
| download | lwn-c9e9f97bdfb64d06e9520f8e4f37674ac21cc9bc.tar.gz lwn-c9e9f97bdfb64d06e9520f8e4f37674ac21cc9bc.zip | |
Btrfs: add basic restriper infrastructure
Add basic restriper infrastructure: extended balancing ioctl and all
related ioctl data structures, add data structure for tracking
restriper's state to fs_info, etc. The semantics of the old balancing
ioctl are fully preserved.
Explicitly disallow any volume operations when balance is in progress.
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Diffstat (limited to 'fs/btrfs/disk-io.c')
| -rw-r--r-- | fs/btrfs/disk-io.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c index ce9d0fb3627d..190a1b24c902 100644 --- a/fs/btrfs/disk-io.c +++ b/fs/btrfs/disk-io.c @@ -2002,6 +2002,10 @@ struct btrfs_root *open_ctree(struct super_block *sb, init_rwsem(&fs_info->scrub_super_lock); fs_info->scrub_workers_refcnt = 0; + spin_lock_init(&fs_info->balance_lock); + mutex_init(&fs_info->balance_mutex); + fs_info->balance_ctl = NULL; + sb->s_blocksize = 4096; sb->s_blocksize_bits = blksize_bits(4096); sb->s_bdi = &fs_info->bdi; |