diff options
| author | David Sterba <dsterba@suse.com> | 2021-07-26 15:15:19 +0300 |
|---|---|---|
| committer | David Sterba <dsterba@suse.com> | 2021-08-23 14:19:03 +0300 |
| commit | 500a44c9b301ae1844e38606c4bff4f15c174fb0 (patch) | |
| tree | d5abfc76111c51606351f77a6f12f92d49f25de6 /fs/btrfs | |
| parent | 6c154ba41bd0b925428e73571df2f80dc8d082ba (diff) | |
| download | linux-500a44c9b301ae1844e38606c4bff4f15c174fb0.tar.xz | |
btrfs: uninline btrfs_bg_flags_to_raid_index
The helper does a simple translation from block group flags to index to
the btrfs_raid_array table. There's no apparent reason to inline the
function, the translation happens usually once per function and is not
called in a loop.
Making it a proper function saves quite some binary code (x86_64,
release config):
text data bss dec hex filename
1164011 19253 14912 1198176 124860 pre/btrfs.ko
1161559 19253 14912 1195724 123ecc post/btrfs.ko
DELTA: -2451
Also add the const attribute as there are no side effects, this could
help compiler to optimize a few things without the function body.
Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'fs/btrfs')
| -rw-r--r-- | fs/btrfs/volumes.c | 26 | ||||
| -rw-r--r-- | fs/btrfs/volumes.h | 27 |
2 files changed, 27 insertions, 26 deletions
diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c index 01127a4dfe91..40d850a7beba 100644 --- a/fs/btrfs/volumes.c +++ b/fs/btrfs/volumes.c @@ -153,6 +153,32 @@ const struct btrfs_raid_attr btrfs_raid_array[BTRFS_NR_RAID_TYPES] = { }, }; +/* + * Convert block group flags (BTRFS_BLOCK_GROUP_*) to btrfs_raid_types, which + * can be used as index to access btrfs_raid_array[]. + */ +enum btrfs_raid_types __attribute_const__ btrfs_bg_flags_to_raid_index(u64 flags) +{ + if (flags & BTRFS_BLOCK_GROUP_RAID10) + return BTRFS_RAID_RAID10; + else if (flags & BTRFS_BLOCK_GROUP_RAID1) + return BTRFS_RAID_RAID1; + else if (flags & BTRFS_BLOCK_GROUP_RAID1C3) + return BTRFS_RAID_RAID1C3; + else if (flags & BTRFS_BLOCK_GROUP_RAID1C4) + return BTRFS_RAID_RAID1C4; + else if (flags & BTRFS_BLOCK_GROUP_DUP) + return BTRFS_RAID_DUP; + else if (flags & BTRFS_BLOCK_GROUP_RAID0) + return BTRFS_RAID_RAID0; + else if (flags & BTRFS_BLOCK_GROUP_RAID5) + return BTRFS_RAID_RAID5; + else if (flags & BTRFS_BLOCK_GROUP_RAID6) + return BTRFS_RAID_RAID6; + + return BTRFS_RAID_SINGLE; /* BTRFS_BLOCK_GROUP_SINGLE */ +} + const char *btrfs_bg_type_to_raid_name(u64 flags) { const int index = btrfs_bg_flags_to_raid_index(flags); diff --git a/fs/btrfs/volumes.h b/fs/btrfs/volumes.h index 70c749eee3ad..b082250b42e0 100644 --- a/fs/btrfs/volumes.h +++ b/fs/btrfs/volumes.h @@ -566,32 +566,6 @@ static inline void btrfs_dev_stat_set(struct btrfs_device *dev, atomic_inc(&dev->dev_stats_ccnt); } -/* - * Convert block group flags (BTRFS_BLOCK_GROUP_*) to btrfs_raid_types, which - * can be used as index to access btrfs_raid_array[]. - */ -static inline enum btrfs_raid_types btrfs_bg_flags_to_raid_index(u64 flags) -{ - if (flags & BTRFS_BLOCK_GROUP_RAID10) - return BTRFS_RAID_RAID10; - else if (flags & BTRFS_BLOCK_GROUP_RAID1) - return BTRFS_RAID_RAID1; - else if (flags & BTRFS_BLOCK_GROUP_RAID1C3) - return BTRFS_RAID_RAID1C3; - else if (flags & BTRFS_BLOCK_GROUP_RAID1C4) - return BTRFS_RAID_RAID1C4; - else if (flags & BTRFS_BLOCK_GROUP_DUP) - return BTRFS_RAID_DUP; - else if (flags & BTRFS_BLOCK_GROUP_RAID0) - return BTRFS_RAID_RAID0; - else if (flags & BTRFS_BLOCK_GROUP_RAID5) - return BTRFS_RAID_RAID5; - else if (flags & BTRFS_BLOCK_GROUP_RAID6) - return BTRFS_RAID_RAID6; - - return BTRFS_RAID_SINGLE; /* BTRFS_BLOCK_GROUP_SINGLE */ -} - void btrfs_commit_device_sizes(struct btrfs_transaction *trans); struct list_head * __attribute_const__ btrfs_get_fs_uuids(void); @@ -601,6 +575,7 @@ void btrfs_scratch_superblocks(struct btrfs_fs_info *fs_info, struct block_device *bdev, const char *device_path); +enum btrfs_raid_types __attribute_const__ btrfs_bg_flags_to_raid_index(u64 flags); int btrfs_bg_type_to_factor(u64 flags); const char *btrfs_bg_type_to_raid_name(u64 flags); int btrfs_verify_dev_extents(struct btrfs_fs_info *fs_info); |