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Commit e9b7fd4d authored by Jan Schmidt's avatar Jan Schmidt
Browse files

Btrfs: add tree_mod_dont_log helper 



Replace duplicate code by small inline helper function.

Signed-off-by: default avatarJan Schmidt <list.btrfs@jan-o-sch.net>
parent 926dd8a6

fs/btrfs/ctree.c

+15 −9
Original line number Diff line number Diff line
@@ -455,14 +455,25 @@ unlock: 
	return ret;

}



static inline int tree_mod_dont_log(struct btrfs_fs_info *fs_info,

				    struct extent_buffer *eb) {

	smp_mb();

	if (list_empty(&(fs_info)->tree_mod_seq_list))

		return 1;

	if (!eb)

		return 0;

	if (btrfs_header_level(eb) == 0)

		return 1;

	return 0;

}



static inline int tree_mod_alloc(struct btrfs_fs_info *fs_info, gfp_t flags,

				 struct tree_mod_elem **tm_ret)

{

	struct tree_mod_elem *tm;

	int seq;



	smp_mb();

	if (list_empty(&fs_info->tree_mod_seq_list))

	if (tree_mod_dont_log(fs_info, NULL))

		return 0;



	tm = *tm_ret = kzalloc(sizeof(*tm), flags);
@@ -643,8 +654,7 @@ tree_mod_log_eb_copy(struct btrfs_fs_info *fs_info, struct extent_buffer *dst, 
	int ret;

	int i;



	smp_mb();

	if (list_empty(&fs_info->tree_mod_seq_list))

	if (tree_mod_dont_log(fs_info, NULL))

		return;



	if (btrfs_header_level(dst) == 0 && btrfs_header_level(src) == 0)
@@ -691,11 +701,7 @@ static void tree_mod_log_free_eb(struct btrfs_fs_info *fs_info, 
	int ret;

	u32 nritems;



	smp_mb();

	if (list_empty(&fs_info->tree_mod_seq_list))

		return;



	if (btrfs_header_level(eb) == 0)

	if (tree_mod_dont_log(fs_info, eb))

		return;



	nritems = btrfs_header_nritems(eb);