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Commit 8c6a3ee6 authored by Miao Xie's avatar Miao Xie Committed by Josef Bacik
Browse files

Btrfs: add a comment for fs_info->max_inline 



Though ->max_inline is a 64bit variant, and may be accessed by
multi-task, but it is just suggestive number, so we needn't add
anything to protect fs_info->max_inline, just add a comment to
explain wny we don't use a lock to protect it.

Signed-off-by: default avatarMiao Xie <miaox@cn.fujitsu.com>
Signed-off-by: default avatarJosef Bacik <jbacik@fusionio.com>
parent 55e301fd

fs/btrfs/ctree.h

+6 −0
Original line number Diff line number Diff line
@@ -1297,6 +1297,12 @@ struct btrfs_fs_info { 
	u64 last_trans_log_full_commit;

	unsigned long mount_opt;

	unsigned long compress_type:4;

	/*

	 * It is a suggestive number, the read side is safe even it gets a

	 * wrong number because we will write out the data into a regular

	 * extent. The write side(mount/remount) is under ->s_umount lock,

	 * so it is also safe.

	 */

	u64 max_inline;

	u64 alloc_start;

	struct btrfs_transaction *running_transaction;