xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

btrfs: tie extent buffer and it's token together

Browse Source 
Further simplifaction of the get/set helpers is possible when the token
is uniquely tied to an extent buffer. A condition and an assignment can
be avoided.

The initializations are moved closer to the first use when the extent
buffer is valid. There's one exception in __push_leaf_left where the
token is reused.

Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
David Sterba
2019-08-09 17:48:21 +02:00
parent 48bc39501a
commit c82f823c9b
5 changed files with 20 additions and 26 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
fs/btrfs/ctree.h
View File

@@ -1303,8 +1303,10 @@ struct btrfs_map_token {
#define BTRFS_BYTES_TO_BLKS(fs_info, bytes) \
((bytes) >> (fs_info)->sb->s_blocksize_bits)
static inline void btrfs_init_map_token (struct btrfs_map_token *token)
static inline void btrfs_init_map_token(struct btrfs_map_token *token,
struct extent_buffer *eb)
{
token->eb = eb;
token->kaddr = NULL;
}