Commit 797f4277 authored by Miao Xie's avatar Miao Xie Committed by Chris Mason
Browse files

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: default avatarMiao Xie <miaox@cn.fujitsu.com>
Signed-off-by: default avatarChris Mason <chris.mason@fusionio.com>
parent af1be4f8

fs/btrfs/file.c

+4 −4
Original line number Diff line number Diff line
@@ -2054,12 +2054,12 @@ 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))
@@ -2140,7 +2140,7 @@ 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 &&