Miao Xie
2012-Nov-28 10:28 UTC
[PATCH 1/2] Btrfs: use existing align macros in btrfs_allocate()
The kernel developers have implemented some often-used align macros, we should use them instead of the complex code. Signed-off-by: Miao Xie <miaox@cn.fujitsu.com> --- fs/btrfs/file.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/fs/btrfs/file.c b/fs/btrfs/file.c index 7aaae56..641bbaa 100644 --- a/fs/btrfs/file.c +++ b/fs/btrfs/file.c @@ -2067,12 +2067,12 @@ static long btrfs_fallocate(struct file *file, int mode, u64 alloc_end; u64 alloc_hint = 0; u64 locked_end; - u64 mask = BTRFS_I(inode)->root->sectorsize - 1; struct extent_map *em; + int blocksize = BTRFS_I(inode)->root->sectorsize; int ret; - alloc_start = offset & ~mask; - alloc_end = (offset + len + mask) & ~mask; + alloc_start = round_down(offset, blocksize); + alloc_end = round_up(offset + len, blocksize); /* Make sure we aren''t being give some crap mode */ if (mode & ~(FALLOC_FL_KEEP_SIZE | FALLOC_FL_PUNCH_HOLE)) @@ -2153,7 +2153,7 @@ static long btrfs_fallocate(struct file *file, int mode, } last_byte = min(extent_map_end(em), alloc_end); actual_end = min_t(u64, extent_map_end(em), offset + len); - last_byte = (last_byte + mask) & ~mask; + last_byte = ALIGN(last_byte, blocksize); if (em->block_start == EXTENT_MAP_HOLE || (cur_offset >= inode->i_size && -- 1.7.11.7 -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html