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| author | Tao Ma <boyu.mt@taobao.com> | 2012-12-10 14:05:57 -0500 |
|---|---|---|
| committer | Theodore Ts'o <tytso@mit.edu> | 2012-12-10 14:05:57 -0500 |
| commit | 3fdcfb668fd78ec92d9bc2daddf1d41e2a8a30bb (patch) | |
| tree | 7f6a45d4815824132c0d70906e04a937a2a222bf /fs/ext4/inline.c | |
| parent | f19d5870cbf72d4cb2a8e1f749dff97af99b071e (diff) | |
| download | lwn-3fdcfb668fd78ec92d9bc2daddf1d41e2a8a30bb.tar.gz lwn-3fdcfb668fd78ec92d9bc2daddf1d41e2a8a30bb.zip | |
ext4: add journalled write support for inline data
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 | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/fs/ext4/inline.c b/fs/ext4/inline.c index 320ff6fe5d8c..01274b1e7d40 100644 --- a/fs/ext4/inline.c +++ b/fs/ext4/inline.c @@ -747,6 +747,30 @@ out: return copied; } +struct buffer_head * +ext4_journalled_write_inline_data(struct inode *inode, + unsigned len, + struct page *page) +{ + int ret; + void *kaddr; + struct ext4_iloc iloc; + + ret = ext4_get_inode_loc(inode, &iloc); + if (ret) { + ext4_std_error(inode->i_sb, ret); + return NULL; + } + + down_write(&EXT4_I(inode)->xattr_sem); + kaddr = kmap_atomic(page); + ext4_write_inline_data(inode, &iloc, kaddr, 0, len); + kunmap_atomic(kaddr); + up_write(&EXT4_I(inode)->xattr_sem); + + return iloc.bh; +} + int ext4_destroy_inline_data(handle_t *handle, struct inode *inode) { |