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authorFilipe Manana <fdmanana@gmail.com>2014-03-03 16:28:40 +0400
committerJosef Bacik <jbacik@fb.com>2014-03-10 23:17:18 +0400
commitfcbd2154d16431395e86a48859a5b547c33c09ad (patch)
tree0e99d795e6ff65abb5b923e5d5adf1113da50691 /fs/btrfs/send.c
parente2127cf008be01c6aa9db463470c0668a85d6fe4 (diff)
downloadlinux-fcbd2154d16431395e86a48859a5b547c33c09ad.tar.xz
Btrfs: avoid unnecessary utimes update in incremental send
When we're finishing processing of an inode, if we're dealing with a directory inode that has a pending move/rename operation, we don't need to send a utimes update instruction to the send stream, as we'll do it later after doing the move/rename operation. Therefore we save some time here building paths and doing btree lookups. Signed-off-by: Filipe David Borba Manana <fdmanana@gmail.com> Signed-off-by: Josef Bacik <jbacik@fb.com>
Diffstat (limited to 'fs/btrfs/send.c')
-rw-r--r--fs/btrfs/send.c21
1 files changed, 11 insertions, 10 deletions
diff --git a/fs/btrfs/send.c b/fs/btrfs/send.c
index c2522e4e2c59..9d057ef5adef 100644
--- a/fs/btrfs/send.c
+++ b/fs/btrfs/send.c
@@ -4957,18 +4957,19 @@ static int finish_inode_if_needed(struct send_ctx *sctx, int at_end)
ret = apply_children_dir_moves(sctx);
if (ret)
goto out;
+ /*
+ * Need to send that every time, no matter if it actually
+ * changed between the two trees as we have done changes to
+ * the inode before. If our inode is a directory and it's
+ * waiting to be moved/renamed, we will send its utimes when
+ * it's moved/renamed, therefore we don't need to do it here.
+ */
+ sctx->send_progress = sctx->cur_ino + 1;
+ ret = send_utimes(sctx, sctx->cur_ino, sctx->cur_inode_gen);
+ if (ret < 0)
+ goto out;
}
- /*
- * Need to send that every time, no matter if it actually
- * changed between the two trees as we have done changes to
- * the inode before.
- */
- sctx->send_progress = sctx->cur_ino + 1;
- ret = send_utimes(sctx, sctx->cur_ino, sctx->cur_inode_gen);
- if (ret < 0)
- goto out;
-
out:
return ret;
}