Commit 745699ef authored by Xiaoguang Wang's avatar Xiaoguang Wang Committed by David Sterba
Browse files

btrfs: remove useless comments 



Fixes: ("btrfs: update btrfs_space_info's bytes_may_use timely")

Signed-off-by: default avatarWang Xiaoguang <wangxg.fnst@cn.fujitsu.com>
Signed-off-by: default avatarDavid Sterba <dsterba@suse.com>
parent ebce0e01

fs/btrfs/extent-tree.c

+3 −10
Original line number Diff line number Diff line
@@ -6499,16 +6499,9 @@ void btrfs_wait_block_group_reservations(struct btrfs_block_group_cache *bg) 
 * @num_bytes:	The number of bytes in question

 * @delalloc:   The blocks are allocated for the delalloc write

 *

 * This is called by the allocator when it reserves space. Metadata

 * reservations should be called with RESERVE_ALLOC so we do the proper

 * ENOSPC accounting.  For data we handle the reservation through clearing the

 * delalloc bits in the io_tree.  We have to do this since we could end up

 * allocating less disk space for the amount of data we have reserved in the

 * case of compression.

 *

 * If this is a reservation and the block group has become read only we cannot

 * make the reservation and return -EAGAIN, otherwise this function always

 * succeeds.

 * This is called by the allocator when it reserves space. If this is a

 * reservation and the block group has become read only we cannot make the

 * reservation and return -EAGAIN, otherwise this function always succeeds.

 */

static int btrfs_add_reserved_bytes(struct btrfs_block_group_cache *cache,

				    u64 ram_bytes, u64 num_bytes, int delalloc)