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| author | Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> | 2008-01-28 23:58:27 -0500 |
|---|---|---|
| committer | Theodore Ts'o <tytso@mit.edu> | 2008-01-28 23:58:27 -0500 |
| commit | c278bfecebfb1ed67c326ef472660878baa745cd (patch) | |
| tree | 7207594cef5bd04ea7333a8321d78aefee01a540 /include/linux/ext4_fs.h | |
| parent | 01f4adc04480a4e0395906d0268c056cf09c39c0 (diff) | |
| download | op-kernel-dev-c278bfecebfb1ed67c326ef472660878baa745cd.zip op-kernel-dev-c278bfecebfb1ed67c326ef472660878baa745cd.tar.gz | |
ext4: Make ext4_get_blocks_wrap take the truncate_mutex early.
When doing a migrate from ext3 to ext4 inode we need to make sure the test
for inode type and walking inode data happens inside lock. To make this
happen move truncate_mutex early before checking the i_flags.
This actually should enable us to remove the verify_chain().
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Diffstat (limited to 'include/linux/ext4_fs.h')
| -rw-r--r-- | include/linux/ext4_fs.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/ext4_fs.h b/include/linux/ext4_fs.h index 55a376e..583049c 100644 --- a/include/linux/ext4_fs.h +++ b/include/linux/ext4_fs.h @@ -1113,6 +1113,7 @@ ext4_get_blocks_wrap(handle_t *handle, struct inode *inode, sector_t block, int create, int extend_disksize) { int retval; + mutex_lock(&EXT4_I(inode)->truncate_mutex); if (EXT4_I(inode)->i_flags & EXT4_EXTENTS_FL) { retval = ext4_ext_get_blocks(handle, inode, (ext4_lblk_t)block, max_blocks, @@ -1122,6 +1123,7 @@ ext4_get_blocks_wrap(handle_t *handle, struct inode *inode, sector_t block, (ext4_lblk_t)block, max_blocks, bh, create, extend_disksize); } + mutex_unlock(&EXT4_I(inode)->truncate_mutex); return retval; } |
