Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
Merge tag 'xfs-4.12-fixes-5' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux
Pull xfs fixes from Darrick Wong:
"I have one more bugfix for you for 4.12-rc7 to fix a disk corruption
problem:
- don't allow swapon on files on the realtime device, because the
swap code will swap pages out to blocks on the data device, thereby
corrupting the filesystem"
* tag 'xfs-4.12-fixes-5' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux:
xfs: don't allow bmap on rt files
+5
-2
+5
-2
fs/xfs/xfs_aops.c
+5
-2
fs/xfs/xfs_aops.c
···
1316
1316
* The swap code (ab-)uses ->bmap to get a block mapping and then
1317
1317
* bypasseѕ the file system for actual I/O. We really can't allow
1318
1318
* that on reflinks inodes, so we have to skip out here. And yes,
1319
-
* 0 is the magic code for a bmap error..
1319
+
* 0 is the magic code for a bmap error.
1320
+
*
1321
+
* Since we don't pass back blockdev info, we can't return bmap
1322
+
* information for rt files either.
1320
1323
*/
1321
-
if (xfs_is_reflink_inode(ip))
1324
+
if (xfs_is_reflink_inode(ip) || XFS_IS_REALTIME_INODE(ip))
1322
1325
return 0;
1323
1326
1324
1327
filemap_write_and_wait(mapping);