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author | Tao Ma <boyu.mt@taobao.com> | 2012-12-10 19:06:03 (GMT) |
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committer | Theodore Ts'o <tytso@mit.edu> | 2012-12-10 19:06:03 (GMT) |
commit | 0c8d414f163f5d35e43a4de7a6e5ee8c253fcccf (patch) | |
tree | 7db57d3b2926408bda5bad880896ee4ec384f398 /fs/ext4/inline.c | |
parent | aef1c8513c1f8ae076e22ea2a57eff5835578e75 (diff) | |
download | linux-fsl-qoriq-0c8d414f163f5d35e43a4de7a6e5ee8c253fcccf.tar.xz |
ext4: let fallocate handle inline data correctly
If we are punching hole in a file, we will return ENOTSUPP.
As for the fallocation of some extents, we will convert the
inline data to a normal extent based file first.
Signed-off-by: Tao Ma <boyu.mt@taobao.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Diffstat (limited to 'fs/ext4/inline.c')
-rw-r--r-- | fs/ext4/inline.c | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/fs/ext4/inline.c b/fs/ext4/inline.c index 727edb8..53b2f65 100644 --- a/fs/ext4/inline.c +++ b/fs/ext4/inline.c @@ -1843,3 +1843,42 @@ out: ext4_journal_stop(handle); return; } + +int ext4_convert_inline_data(struct inode *inode) +{ + int error, needed_blocks; + handle_t *handle; + struct ext4_iloc iloc; + + if (!ext4_has_inline_data(inode)) { + ext4_clear_inode_state(inode, EXT4_STATE_MAY_INLINE_DATA); + return 0; + } + + needed_blocks = ext4_writepage_trans_blocks(inode); + + iloc.bh = NULL; + error = ext4_get_inode_loc(inode, &iloc); + if (error) + return error; + + handle = ext4_journal_start(inode, needed_blocks); + if (IS_ERR(handle)) { + error = PTR_ERR(handle); + goto out_free; + } + + down_write(&EXT4_I(inode)->xattr_sem); + if (!ext4_has_inline_data(inode)) { + up_write(&EXT4_I(inode)->xattr_sem); + goto out; + } + + error = ext4_convert_inline_data_nolock(handle, inode, &iloc); + up_write(&EXT4_I(inode)->xattr_sem); +out: + ext4_journal_stop(handle); +out_free: + brelse(iloc.bh); + return error; +} |