diff options
| author | Josef Bacik <jbacik@fusionio.com> | 2012-10-11 15:53:56 -0400 |
|---|---|---|
| committer | Chris Mason <chris.mason@fusionio.com> | 2012-12-16 20:46:21 -0500 |
| commit | e99761514999f64aff1985460967f93d9e8417f4 (patch) | |
| tree | 67bd13d96325679bde7244d69cce501840b63796 | |
| parent | 5f3ab90a72f98adbf00c50ac2d4d2b47cf4a9685 (diff) | |
Btrfs: only log the inode item if we can get away with it
Currently we copy all the file information into the log, inode item, the
refs, xattrs etc. Except most of this doesn't change from fsync to fsync,
just the inode item changes. So set a flag if an xattr changes or a link is
added, and otherwise only log the inode item. Thanks,
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
| -rw-r--r-- | fs/btrfs/btrfs_inode.h | 1 | ||||
| -rw-r--r-- | fs/btrfs/inode.c | 1 | ||||
| -rw-r--r-- | fs/btrfs/tree-log.c | 10 | ||||
| -rw-r--r-- | fs/btrfs/xattr.c | 1 |
4 files changed, 11 insertions, 2 deletions
diff --git a/fs/btrfs/btrfs_inode.h b/fs/btrfs/btrfs_inode.h index ed8ca7ca5ef..2411baf3522 100644 --- a/fs/btrfs/btrfs_inode.h +++ b/fs/btrfs/btrfs_inode.h @@ -39,6 +39,7 @@ #define BTRFS_INODE_HAS_ORPHAN_ITEM 5 #define BTRFS_INODE_HAS_ASYNC_EXTENT 6 #define BTRFS_INODE_NEEDS_FULL_SYNC 7 +#define BTRFS_INODE_COPY_EVERYTHING 8 /* in memory btrfs inode */ struct btrfs_inode { diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c index 0446cbe8bca..123815f3b45 100644 --- a/fs/btrfs/inode.c +++ b/fs/btrfs/inode.c @@ -5083,6 +5083,7 @@ static int btrfs_link(struct dentry *old_dentry, struct inode *dir, inode_inc_iversion(inode); inode->i_ctime = CURRENT_TIME; ihold(inode); + set_bit(BTRFS_INODE_COPY_EVERYTHING, &BTRFS_I(inode)->runtime_flags); err = btrfs_add_nondir(trans, dir, dentry, inode, 1, index); diff --git a/fs/btrfs/tree-log.c b/fs/btrfs/tree-log.c index 40b9efd20e4..f05fca778cb 100644 --- a/fs/btrfs/tree-log.c +++ b/fs/btrfs/tree-log.c @@ -3429,14 +3429,20 @@ static int btrfs_log_inode(struct btrfs_trans_handle *trans, } else { if (test_and_clear_bit(BTRFS_INODE_NEEDS_FULL_SYNC, &BTRFS_I(inode)->runtime_flags)) { + clear_bit(BTRFS_INODE_COPY_EVERYTHING, + &BTRFS_I(inode)->runtime_flags); ret = btrfs_truncate_inode_items(trans, log, inode, 0, 0); } else { if (inode_only == LOG_INODE_ALL) fast_search = true; - max_key.type = BTRFS_XATTR_ITEM_KEY; + if (test_and_clear_bit(BTRFS_INODE_COPY_EVERYTHING, + &BTRFS_I(inode)->runtime_flags)) + max_key.type = BTRFS_XATTR_ITEM_KEY; + else + max_key.type = BTRFS_INODE_ITEM_KEY; ret = drop_objectid_items(trans, log, path, ino, - BTRFS_XATTR_ITEM_KEY); + max_key.type); } } if (ret) { diff --git a/fs/btrfs/xattr.c b/fs/btrfs/xattr.c index aef6bb3c5f5..446a6848c55 100644 --- a/fs/btrfs/xattr.c +++ b/fs/btrfs/xattr.c @@ -208,6 +208,7 @@ int __btrfs_setxattr(struct btrfs_trans_handle *trans, inode_inc_iversion(inode); inode->i_ctime = CURRENT_TIME; + set_bit(BTRFS_INODE_COPY_EVERYTHING, &BTRFS_I(inode)->runtime_flags); ret = btrfs_update_inode(trans, root, inode); BUG_ON(ret); out: |