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| author | Gao Xiang <gaoxiang25@huawei.com> | 2019-09-04 04:08:50 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-09-05 20:10:07 +0200 |
| commit | b6796abd3cc155eb5d49b9a7600a26f503b62da7 (patch) | |
| tree | 45f96e1b3c97c208356be05bfd2bc491138bbd7b /fs/erofs/erofs_fs.h | |
| parent | erofs: on-disk format should have explicitly assigned numbers (diff) | |
| download | linux-b6796abd3cc155eb5d49b9a7600a26f503b62da7.tar.xz linux-b6796abd3cc155eb5d49b9a7600a26f503b62da7.zip | |
erofs: some macros are much more readable as a function
As Christoph suggested [1], these macros are much
more readable as a function.
[1] https://lore.kernel.org/r/20190829095954.GB20598@infradead.org/
Reported-by: Christoph Hellwig <hch@infradead.org>
Signed-off-by: Gao Xiang <gaoxiang25@huawei.com>
Link: https://lore.kernel.org/r/20190904020912.63925-4-gaoxiang25@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'fs/erofs/erofs_fs.h')
| -rw-r--r-- | fs/erofs/erofs_fs.h | 22 |
1 files changed, 14 insertions, 8 deletions
diff --git a/fs/erofs/erofs_fs.h b/fs/erofs/erofs_fs.h index d1f152a3670a..c1220b0f26e0 100644 --- a/fs/erofs/erofs_fs.h +++ b/fs/erofs/erofs_fs.h @@ -171,16 +171,22 @@ struct erofs_xattr_entry { char e_name[0]; /* attribute name */ } __packed; -#define ondisk_xattr_ibody_size(count) ({\ - u32 __count = le16_to_cpu(count); \ - ((__count) == 0) ? 0 : \ - sizeof(struct erofs_xattr_ibody_header) + \ - sizeof(__u32) * ((__count) - 1); }) +static inline unsigned int erofs_xattr_ibody_size(__le16 i_xattr_icount) +{ + if (!i_xattr_icount) + return 0; + + return sizeof(struct erofs_xattr_ibody_header) + + sizeof(__u32) * (le16_to_cpu(i_xattr_icount) - 1); +} #define EROFS_XATTR_ALIGN(size) round_up(size, sizeof(struct erofs_xattr_entry)) -#define EROFS_XATTR_ENTRY_SIZE(entry) EROFS_XATTR_ALIGN( \ - sizeof(struct erofs_xattr_entry) + \ - (entry)->e_name_len + le16_to_cpu((entry)->e_value_size)) + +static inline unsigned int erofs_xattr_entry_size(struct erofs_xattr_entry *e) +{ + return EROFS_XATTR_ALIGN(sizeof(struct erofs_xattr_entry) + + e->e_name_len + le16_to_cpu(e->e_value_size)); +} /* available compression algorithm types */ enum { |