From 6cfab851f42edcfa72763b3cb8dc26b8fd74e203 Mon Sep 17 00:00:00 2001 From: Josef Bacik Date: Tue, 12 Nov 2013 16:25:58 -0500 Subject: Btrfs: make sure to copy everything if we rename If we rename a file that is already in the log and we fsync again we will lose the new name. This is because we just log the inode update and not the new ref. To fix this we just need to check if we are logging the new name of the inode and copy all the metadata instead of just updating the inode itself. With this patch my testcase now passes. Thanks, Signed-off-by: Josef Bacik Signed-off-by: Chris Mason --- fs/btrfs/tree-log.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'fs/btrfs/tree-log.c') diff --git a/fs/btrfs/tree-log.c b/fs/btrfs/tree-log.c index 744553c83fe..b0c7134162f 100644 --- a/fs/btrfs/tree-log.c +++ b/fs/btrfs/tree-log.c @@ -3697,7 +3697,8 @@ static int btrfs_log_inode(struct btrfs_trans_handle *trans, ret = btrfs_truncate_inode_items(trans, log, inode, 0, 0); } else if (test_and_clear_bit(BTRFS_INODE_COPY_EVERYTHING, - &BTRFS_I(inode)->runtime_flags)) { + &BTRFS_I(inode)->runtime_flags) || + inode_only == LOG_INODE_EXISTS) { if (inode_only == LOG_INODE_ALL) fast_search = true; max_key.type = BTRFS_XATTR_ITEM_KEY; -- cgit v1.2.3-70-g09d2 From d006a04816a306995cd9d394079652a7462f81f8 Mon Sep 17 00:00:00 2001 From: Josef Bacik Date: Tue, 12 Nov 2013 20:54:09 -0500 Subject: Btrfs: only drop modified extents if we logged the whole inode If we fsync, seek and write, rename and then fsync again we will lose the modified hole extent because the rename will drop all of the modified extents since we didn't do the fast search. We need to only drop the modified extents if we didn't do the fast search and we were logging the entire inode as we don't need them anymore, otherwise this is being premature. Thanks, Signed-off-by: Josef Bacik Signed-off-by: Chris Mason --- fs/btrfs/tree-log.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'fs/btrfs/tree-log.c') diff --git a/fs/btrfs/tree-log.c b/fs/btrfs/tree-log.c index b0c7134162f..9f7fc51ca33 100644 --- a/fs/btrfs/tree-log.c +++ b/fs/btrfs/tree-log.c @@ -3802,7 +3802,7 @@ log_extents: err = ret; goto out_unlock; } - } else { + } else if (inode_only == LOG_INODE_ALL) { struct extent_map_tree *tree = &BTRFS_I(inode)->extent_tree; struct extent_map *em, *n; -- cgit v1.2.3-70-g09d2