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| author | Filipe Manana <fdmanana@suse.com> | 2014-08-14 12:25:14 +0100 |
|---|---|---|
| committer | Chris Mason <clm@fb.com> | 2014-09-17 13:38:17 -0700 |
| commit | 2a39e5980257c77f48b5c31f9fb483a72a03b213 (patch) | |
| tree | b4e6cd946d4c12f1fb2ed6a48c24040d65305888 /fs/btrfs/extent_io.h | |
| parent | 4395e0c4da486f007dcb45b0336427be7ec08ab1 (diff) | |
| download | linux-0-day-2a39e5980257c77f48b5c31f9fb483a72a03b213.tar.gz linux-0-day-2a39e5980257c77f48b5c31f9fb483a72a03b213.tar.xz | |
Btrfs: shrink further sizeof(struct extent_buffer)
The map_start and map_len fields aren't used anywhere, so just remove
them. On a x86_64 system, this reduced sizeof(struct extent_buffer)
from 296 bytes to 280 bytes, and therefore 14 extent_buffer structs can
now fit into a page instead of 13.
Signed-off-by: Filipe Manana <fdmanana@suse.com>
Reviewed-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Chris Mason <clm@fb.com>
Diffstat (limited to 'fs/btrfs/extent_io.h')
| -rw-r--r-- | fs/btrfs/extent_io.h | 2 |
1 files changed, 0 insertions, 2 deletions
diff --git a/fs/btrfs/extent_io.h b/fs/btrfs/extent_io.h index 1f608166fe670..844b4c5029cdd 100644 --- a/fs/btrfs/extent_io.h +++ b/fs/btrfs/extent_io.h @@ -125,8 +125,6 @@ struct extent_state { struct extent_buffer { u64 start; unsigned long len; - unsigned long map_start; - unsigned long map_len; unsigned long bflags; struct btrfs_fs_info *fs_info; spinlock_t refs_lock; |