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| author | Theodore Ts'o <tytso@mit.edu> | 2013-08-12 09:29:30 -0400 |
|---|---|---|
| committer | Theodore Ts'o <tytso@mit.edu> | 2013-08-12 09:29:30 -0400 |
| commit | cde2d7a796f7e895e25b43471ed658079345636d (patch) | |
| tree | 5f780ac8b79c0f4e34997d2855e3c7b88b8b5276 /fs | |
| parent | 6ae6514b33f941d3386da0dfbe2942766eab1577 (diff) | |
| download | lwn-cde2d7a796f7e895e25b43471ed658079345636d.tar.gz lwn-cde2d7a796f7e895e25b43471ed658079345636d.zip | |
ext4: flush the extent status cache during EXT4_IOC_SWAP_BOOT
Previously we weren't swapping only some of the extent_status LRU
fields during the processing of the EXT4_IOC_SWAP_BOOT ioctl. The
much safer thing to do is to just completely flush the extent status
tree when doing the swap.
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Cc: Zheng Liu <gnehzuil.liu@gmail.com>
Cc: stable@vger.kernel.org
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/ext4/ioctl.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/fs/ext4/ioctl.c b/fs/ext4/ioctl.c index 9491ac0590f7..c0427e2f6648 100644 --- a/fs/ext4/ioctl.c +++ b/fs/ext4/ioctl.c @@ -77,8 +77,10 @@ static void swap_inode_data(struct inode *inode1, struct inode *inode2) memswap(ei1->i_data, ei2->i_data, sizeof(ei1->i_data)); memswap(&ei1->i_flags, &ei2->i_flags, sizeof(ei1->i_flags)); memswap(&ei1->i_disksize, &ei2->i_disksize, sizeof(ei1->i_disksize)); - memswap(&ei1->i_es_tree, &ei2->i_es_tree, sizeof(ei1->i_es_tree)); - memswap(&ei1->i_es_lru_nr, &ei2->i_es_lru_nr, sizeof(ei1->i_es_lru_nr)); + ext4_es_remove_extent(inode1, 0, EXT_MAX_BLOCKS); + ext4_es_remove_extent(inode2, 0, EXT_MAX_BLOCKS); + ext4_es_lru_del(inode1); + ext4_es_lru_del(inode2); isize = i_size_read(inode1); i_size_write(inode1, i_size_read(inode2)); |