diff options
| author | Yuezhang Mo <Yuezhang.Mo@sony.com> | 2022-08-16 16:55:06 +0800 |
|---|---|---|
| committer | Namjae Jeon <linkinjeon@kernel.org> | 2022-12-12 11:02:50 +0900 |
| commit | 088f1343d9108c16fca064951d85e6de9f5cab42 (patch) | |
| tree | e389ed08eea7514f261cbb47d2c498f102113552 /fs/exfat/exfat_fs.h | |
| parent | f3fe3954c09f97d8227d9d2edc807796a8b228ab (diff) | |
exfat: remove call ilog2() from exfat_readdir()
There is no need to call ilog2() for the conversions between
cluster and dentry in exfat_readdir(), because these conversions
can be replaced with EXFAT_DEN_TO_CLU()/EXFAT_CLU_TO_DEN().
Code refinement, no functional changes.
Signed-off-by: Yuezhang Mo <Yuezhang.Mo@sony.com>
Reviewed-by: Andy Wu <Andy.Wu@sony.com>
Reviewed-by: Aoyama Wataru <wataru.aoyama@sony.com>
Reviewed-by: Sungjong Seo <sj1557.seo@samsung.com>
Signed-off-by: Namjae Jeon <linkinjeon@kernel.org>
Diffstat (limited to 'fs/exfat/exfat_fs.h')
| -rw-r--r-- | fs/exfat/exfat_fs.h | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/fs/exfat/exfat_fs.h b/fs/exfat/exfat_fs.h index 324acc57d029..37e8af8042aa 100644 --- a/fs/exfat/exfat_fs.h +++ b/fs/exfat/exfat_fs.h @@ -101,12 +101,18 @@ enum { /* * helpers for block size to dentry size conversion. */ -#define EXFAT_B_TO_DEN_IDX(b, sbi) \ - ((b) << ((sbi)->cluster_size_bits - DENTRY_SIZE_BITS)) #define EXFAT_B_TO_DEN(b) ((b) >> DENTRY_SIZE_BITS) #define EXFAT_DEN_TO_B(b) ((b) << DENTRY_SIZE_BITS) /* + * helpers for cluster size to dentry size conversion. + */ +#define EXFAT_CLU_TO_DEN(clu, sbi) \ + ((clu) << ((sbi)->cluster_size_bits - DENTRY_SIZE_BITS)) +#define EXFAT_DEN_TO_CLU(dentry, sbi) \ + ((dentry) >> ((sbi)->cluster_size_bits - DENTRY_SIZE_BITS)) + +/* * helpers for fat entry. */ #define FAT_ENT_SIZE (4) |