linux-kernel - [PATCH] btrfs: Return EXDEV for cross file system snapshot

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-Id: <52cd2c7c00011d8a00004f4e0000743e400004e23b8c@amlmta033.auone-net.jp>
Date:	Wed, 8 Jan 2014 19:46:19 +0900
From:	Kusanagi Kouichi <slash@...auone-net.jp>
To:	linux-btrfs@...r.kernel.org
Cc:	linux-kernel@...r.kernel.org
Subject: [PATCH] btrfs: Return EXDEV for cross file system snapshot

EXDEV seems an appropriate error if an operation fails bacause it
crosses file system boundaries.

Signed-off-by: Kusanagi Kouichi <slash@...auone-net.jp>
---
 fs/btrfs/ioctl.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c
index 21da576..15d35cb 100644
--- a/fs/btrfs/ioctl.c
+++ b/fs/btrfs/ioctl.c
@@ -1544,7 +1544,7 @@ static noinline int btrfs_ioctl_snap_create_transid(struct file *file,
 		if (src_inode->i_sb != file_inode(file)->i_sb) {
 			printk(KERN_INFO "btrfs: Snapshot src from "
 			       "another FS\n");
-			ret = -EINVAL;
+			ret = -EXDEV;
 		} else {
 			ret = btrfs_mksubvol(&file->f_path, name, namelen,
 					     BTRFS_I(src_inode)->root,
-- 
1.8.5.2

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/