From e2d044fe77f8e845333bb1bd29587dc08a4346a0 Mon Sep 17 00:00:00 2001
From: Alex Lyakas <alex.btrfs@zadarastorage.com>
Date: Wed, 17 Oct 2012 13:52:47 +0000
Subject: [PATCH] Btrfs: Send: preserve ownership (uid and gid) also for
symlinks.
This patch also requires a change in the user-space part of "receive".
We need to use "lchown" instead of "chown". We will do this in the
following patch.
Signed-off-by: Alex Lyakas <alex.btrfs@zadarastorage.com>
if (S_ISREG(sctx->cur_inode_mode)) {
---
fs/btrfs/send.c | 27 +++++++++++++--------------
1 file changed, 13 insertions(+), 14 deletions(-)
diff --git a/fs/btrfs/send.c b/fs/btrfs/send.c
index 97cc5399306b..e78b297b0b00 100644
--- a/fs/btrfs/send.c
+++ b/fs/btrfs/send.c
@@ -4067,22 +4067,21 @@ static int finish_inode_if_needed(struct send_ctx *sctx, int at_end)
if (ret < 0)
goto out;
- if (!S_ISLNK(sctx->cur_inode_mode)) {
- if (!sctx->parent_root || sctx->cur_inode_new) {
+ if (!sctx->parent_root || sctx->cur_inode_new) {
+ need_chown = 1;
+ if (!S_ISLNK(sctx->cur_inode_mode))
need_chmod = 1;
- need_chown = 1;
- } else {
- ret = get_inode_info(sctx->parent_root, sctx->cur_ino,
- NULL, NULL, &right_mode, &right_uid,
- &right_gid, NULL);
- if (ret < 0)
- goto out;
+ } else {
+ ret = get_inode_info(sctx->parent_root, sctx->cur_ino,
+ NULL, NULL, &right_mode, &right_uid,
+ &right_gid, NULL);
+ if (ret < 0)
+ goto out;
- if (left_uid != right_uid || left_gid != right_gid)
- need_chown = 1;
- if (left_mode != right_mode)
- need_chmod = 1;
- }
+ if (left_uid != right_uid || left_gid != right_gid)
+ need_chown = 1;
+ if (!S_ISLNK(sctx->cur_inode_mode) && left_mode != right_mode)
+ need_chmod = 1;
}
if (S_ISREG(sctx->cur_inode_mode)) {
--
2.20.1