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| author | Nikolay Borisov <nborisov@suse.com> | 2017-06-28 11:05:22 +0300 |
|---|---|---|
| committer | David Sterba <dsterba@suse.com> | 2017-08-16 15:19:53 +0300 |
| commit | 23d1f73788785a770fe6eb348fee4b26281d2064 (patch) | |
| tree | 491243de8fd38a5ec2dc4bd623d8dfb632043c8d | |
| parent | f148ef4d3a8feb2e30017050e3534a4d0646b769 (diff) | |
| download | linux-23d1f73788785a770fe6eb348fee4b26281d2064.tar.xz | |
btrfs: remove unused sectorsize member
The sectorsize member of btrfs_block_group_cache is unused. So remove it, this
reduces the number of holes in the struct.
With patch:
/* size: 856, cachelines: 14, members: 40 */
/* sum members: 837, holes: 4, sum holes: 19 */
/* bit holes: 1, sum bit holes: 29 bits */
/* last cacheline: 24 bytes */
Without patch:
/* size: 864, cachelines: 14, members: 41 */
/* sum members: 841, holes: 5, sum holes: 23 */
/* bit holes: 1, sum bit holes: 29 bits */
/* last cacheline: 32 bytes */
Signed-off-by: Nikolay Borisov <nborisov@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
| -rw-r--r-- | fs/btrfs/ctree.h | 1 | ||||
| -rw-r--r-- | fs/btrfs/extent-tree.c | 1 | ||||
| -rw-r--r-- | fs/btrfs/tests/btrfs-tests.c | 1 | ||||
| -rw-r--r-- | fs/btrfs/tests/free-space-tree-tests.c | 2 |
4 files changed, 1 insertions, 4 deletions
diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h index 3f3eb7b17cac..589491040950 100644 --- a/fs/btrfs/ctree.h +++ b/fs/btrfs/ctree.h @@ -558,7 +558,6 @@ struct btrfs_block_group_cache { u64 bytes_super; u64 flags; u64 cache_generation; - u32 sectorsize; /* * If the free space extent count exceeds this number, convert the block diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c index e3b0b4196d3d..6d04563585e6 100644 --- a/fs/btrfs/extent-tree.c +++ b/fs/btrfs/extent-tree.c @@ -9952,7 +9952,6 @@ btrfs_create_block_group_cache(struct btrfs_fs_info *fs_info, cache->key.offset = size; cache->key.type = BTRFS_BLOCK_GROUP_ITEM_KEY; - cache->sectorsize = fs_info->sectorsize; cache->fs_info = fs_info; cache->full_stripe_len = btrfs_full_stripe_len(fs_info, &fs_info->mapping_tree, diff --git a/fs/btrfs/tests/btrfs-tests.c b/fs/btrfs/tests/btrfs-tests.c index b18ab8f327a5..d3f25376a0f8 100644 --- a/fs/btrfs/tests/btrfs-tests.c +++ b/fs/btrfs/tests/btrfs-tests.c @@ -211,7 +211,6 @@ btrfs_alloc_dummy_block_group(struct btrfs_fs_info *fs_info, cache->key.objectid = 0; cache->key.offset = length; cache->key.type = BTRFS_BLOCK_GROUP_ITEM_KEY; - cache->sectorsize = fs_info->sectorsize; cache->full_stripe_len = fs_info->sectorsize; cache->fs_info = fs_info; diff --git a/fs/btrfs/tests/free-space-tree-tests.c b/fs/btrfs/tests/free-space-tree-tests.c index b29954c01673..1458bb0ea124 100644 --- a/fs/btrfs/tests/free-space-tree-tests.c +++ b/fs/btrfs/tests/free-space-tree-tests.c @@ -81,7 +81,7 @@ static int __check_free_space_extents(struct btrfs_trans_handle *trans, i++; } prev_bit = bit; - offset += cache->sectorsize; + offset += fs_info->sectorsize; } } if (prev_bit == 1) { |