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| author | Qu Wenruo <quwenruo@cn.fujitsu.com> | 2013-02-26 08:10:22 +0000 |
|---|---|---|
| committer | Josef Bacik <jbacik@fusionio.com> | 2013-02-26 11:04:13 -0500 |
| commit | fda2832febb1928da0625b2c5d15559b29d7e740 (patch) | |
| tree | dac83eff57b657dfc04ba72fa7bcce4b4674b810 /fs/btrfs/tree-log.c | |
| parent | 8c4ce81e911ab6c84e4f75e18d4ceb3fa555c35b (diff) | |
| download | linux-stable-fda2832febb1928da0625b2c5d15559b29d7e740.tar.gz linux-stable-fda2832febb1928da0625b2c5d15559b29d7e740.tar.bz2 linux-stable-fda2832febb1928da0625b2c5d15559b29d7e740.zip | |
btrfs: cleanup for open-coded alignment
Though most of the btrfs codes are using ALIGN macro for page alignment,
there are still some codes using open-coded alignment like the
following:
------
u64 mask = ((u64)root->stripesize - 1);
u64 ret = (val + mask) & ~mask;
------
Or even hidden one:
------
num_bytes = (end - start + blocksize) & ~(blocksize - 1);
------
Sometimes these open-coded alignment is not so easy to understand for
newbie like me.
This commit changes the open-coded alignment to the ALIGN macro for a
better readability.
Also there is a previous patch from David Sterba with similar changes,
but the patch is for 3.2 kernel and seems not merged.
http://www.spinics.net/lists/linux-btrfs/msg12747.html
Cc: David Sterba <dave@jikos.cz>
Signed-off-by: Qu Wenruo <quwenruo@cn.fujitsu.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Diffstat (limited to 'fs/btrfs/tree-log.c')
| -rw-r--r-- | fs/btrfs/tree-log.c | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/fs/btrfs/tree-log.c b/fs/btrfs/tree-log.c index 1a79087c4575..e8b7a68e1b37 100644 --- a/fs/btrfs/tree-log.c +++ b/fs/btrfs/tree-log.c @@ -484,7 +484,6 @@ static noinline int replay_one_extent(struct btrfs_trans_handle *trans, struct btrfs_key *key) { int found_type; - u64 mask = root->sectorsize - 1; u64 extent_end; u64 start = key->offset; u64 saved_nbytes; @@ -501,7 +500,7 @@ static noinline int replay_one_extent(struct btrfs_trans_handle *trans, extent_end = start + btrfs_file_extent_num_bytes(eb, item); else if (found_type == BTRFS_FILE_EXTENT_INLINE) { size = btrfs_file_extent_inline_len(eb, item); - extent_end = (start + size + mask) & ~mask; + extent_end = ALIGN(start + size, root->sectorsize); } else { ret = 0; goto out; |