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| author | Zheng Liu <wenqing.lz@taobao.com> | 2013-08-28 18:47:06 (GMT) |
|---|---|---|
| committer | Theodore Ts'o <tytso@mit.edu> | 2013-08-28 18:47:06 (GMT) |
| commit | d7b2a00c2e2eedf460ce2a15237f28de40412d86 (patch) | |
| tree | 5a6b062e0973a84cab9b66f75a7a573361ccdf69 /fs/ext4/extents.c | |
| parent | 70261f568f3c08552f034742e3d5cb78c3877766 (diff) | |
| download | linux-d7b2a00c2e2eedf460ce2a15237f28de40412d86.tar.xz | |
ext4: isolate ext4_extents.h file
After applied the commit (4a092d73), we have reduced the number of
source files that need to #include ext4_extents.h. But we can do
better.
This commit defines ext4_zeroout_es() in extents.c and move
EXT_MAX_BLOCKS into ext4.h in order not to include ext4_extents.h in
indirect.c and ioctl.c. Meanwhile we just need to include this file in
extent_status.c when ES_AGGRESSIVE_TEST is defined. Otherwise, this
commit removes a duplicated declaration in trace/events/ext4.h.
After applied this patch, we just need to include ext4_extents.h file
in {super,migrate,move_extents,extents}.c, and it is easy for us to
define a new extent disk layout.
Signed-off-by: Zheng Liu <wenqing.lz@taobao.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Diffstat (limited to 'fs/ext4/extents.c')
| -rw-r--r-- | fs/ext4/extents.c | 21 |
1 files changed, 19 insertions, 2 deletions
diff --git a/fs/ext4/extents.c b/fs/ext4/extents.c index 916e884..54d52af 100644 --- a/fs/ext4/extents.c +++ b/fs/ext4/extents.c @@ -3048,6 +3048,23 @@ void ext4_ext_release(struct super_block *sb) #endif } +static int ext4_zeroout_es(struct inode *inode, struct ext4_extent *ex) +{ + ext4_lblk_t ee_block; + ext4_fsblk_t ee_pblock; + unsigned int ee_len; + + ee_block = le32_to_cpu(ex->ee_block); + ee_len = ext4_ext_get_actual_len(ex); + ee_pblock = ext4_ext_pblock(ex); + + if (ee_len == 0) + return 0; + + return ext4_es_insert_extent(inode, ee_block, ee_len, ee_pblock, + EXTENT_STATUS_WRITTEN); +} + /* FIXME!! we need to try to merge to left or right after zero-out */ static int ext4_ext_zeroout(struct inode *inode, struct ext4_extent *ex) { @@ -3200,7 +3217,7 @@ static int ext4_split_extent_at(handle_t *handle, goto fix_extent_len; /* update extent status tree */ - err = ext4_es_zeroout(inode, &zero_ex); + err = ext4_zeroout_es(inode, &zero_ex); goto out; } else if (err) @@ -3551,7 +3568,7 @@ static int ext4_ext_convert_to_initialized(handle_t *handle, out: /* If we have gotten a failure, don't zero out status tree */ if (!err) - err = ext4_es_zeroout(inode, &zero_ex); + err = ext4_zeroout_es(inode, &zero_ex); return err ? err : allocated; } |