| commit | 68285a49fce5634e194be0de1aec6e423d74e1cc | |
| author | Akira Fujita <a-fujita@rs.jp.nec.com> | |
| Mon, 31 May 2010 02:49:35 +0000 (30 22:49 -0400) | ||
| committer | Greg Kroah-Hartman <gregkh@suse.de> | |
| Mon, 2 Aug 2010 17:21:14 +0000 (2 10:21 -0700) | ||
| tree | 24f7e4ec8be3b816180581800f3bfdd3956ef237 | treesnapshot (tar.gz zip) |
| parent | 2b8aa5edf84a8e7cc432cbfda2be7cefa0a46347 | commitdiff |
ext4: Fix insertion point of extent in mext_insert_across_blocks()
commit 5fd5249aa36fad98c9fd5edced352939e54f9324 upstream (as of v2.6.33-git11)
If the leaf node has 2 extent space or fewer and EXT4_IOC_MOVE_EXT
ioctl is called with the file offset where after the 2nd extent
covers, mext_insert_across_blocks() always tries to insert extent into
the first extent. As a result, the file gets corrupted because of
wrong extent order. The patch fixes this problem.
Signed-off-by: Akira Fujita <a-fujita@rs.jp.nec.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
commit 5fd5249aa36fad98c9fd5edced352939e54f9324 upstream (as of v2.6.33-git11)
If the leaf node has 2 extent space or fewer and EXT4_IOC_MOVE_EXT
ioctl is called with the file offset where after the 2nd extent
covers, mext_insert_across_blocks() always tries to insert extent into
the first extent. As a result, the file gets corrupted because of
wrong extent order. The patch fixes this problem.
Signed-off-by: Akira Fujita <a-fujita@rs.jp.nec.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| fs/ext4/move_extent.c | diffblobblamehistory |