diff options
| author | Gao Xiang <hsiangkao@redhat.com> | 2021-03-29 04:23:05 +0300 |
|---|---|---|
| committer | Gao Xiang <hsiangkao@redhat.com> | 2021-03-29 05:24:57 +0300 |
| commit | de06a6a375414be03ce5b1054f2d836591923a1d (patch) | |
| tree | 8db8685441b4a9a5d712c5679839de2388844077 /fs/erofs | |
| parent | 24a806d849c0b0c1d0cd6a6b93ba4ae4c0ec9f08 (diff) | |
| download | linux-de06a6a375414be03ce5b1054f2d836591923a1d.tar.xz | |
erofs: introduce erofs_sb_has_xxx() helpers
Introduce erofs_sb_has_xxx() to make long checks short, especially
for later big pcluster & LZMA features.
Link: https://lore.kernel.org/r/20210329012308.28743-2-hsiangkao@aol.com
Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Gao Xiang <hsiangkao@redhat.com>
Diffstat (limited to 'fs/erofs')
| -rw-r--r-- | fs/erofs/decompressor.c | 3 | ||||
| -rw-r--r-- | fs/erofs/internal.h | 9 | ||||
| -rw-r--r-- | fs/erofs/super.c | 2 |
3 files changed, 11 insertions, 3 deletions
diff --git a/fs/erofs/decompressor.c b/fs/erofs/decompressor.c index 34e73ff76f89..80e8871aef71 100644 --- a/fs/erofs/decompressor.c +++ b/fs/erofs/decompressor.c @@ -124,8 +124,7 @@ static int z_erofs_lz4_decompress(struct z_erofs_decompress_req *rq, u8 *out) support_0padding = false; /* decompression inplace is only safe when 0padding is enabled */ - if (EROFS_SB(rq->sb)->feature_incompat & - EROFS_FEATURE_INCOMPAT_LZ4_0PADDING) { + if (erofs_sb_has_lz4_0padding(EROFS_SB(rq->sb))) { support_0padding = true; while (!src[inputmargin & ~PAGE_MASK]) diff --git a/fs/erofs/internal.h b/fs/erofs/internal.h index db8c8470269e..a148a039cf67 100644 --- a/fs/erofs/internal.h +++ b/fs/erofs/internal.h @@ -218,6 +218,15 @@ static inline erofs_off_t iloc(struct erofs_sb_info *sbi, erofs_nid_t nid) return blknr_to_addr(sbi->meta_blkaddr) + (nid << sbi->islotbits); } +#define EROFS_FEATURE_FUNCS(name, compat, feature) \ +static inline bool erofs_sb_has_##name(struct erofs_sb_info *sbi) \ +{ \ + return sbi->feature_##compat & EROFS_FEATURE_##feature; \ +} + +EROFS_FEATURE_FUNCS(lz4_0padding, incompat, INCOMPAT_LZ4_0PADDING) +EROFS_FEATURE_FUNCS(sb_chksum, compat, COMPAT_SB_CHKSUM) + /* atomic flag definitions */ #define EROFS_I_EA_INITED_BIT 0 #define EROFS_I_Z_INITED_BIT 1 diff --git a/fs/erofs/super.c b/fs/erofs/super.c index 0445d09b6331..991b99eaf22a 100644 --- a/fs/erofs/super.c +++ b/fs/erofs/super.c @@ -149,7 +149,7 @@ static int erofs_read_superblock(struct super_block *sb) } sbi->feature_compat = le32_to_cpu(dsb->feature_compat); - if (sbi->feature_compat & EROFS_FEATURE_COMPAT_SB_CHKSUM) { + if (erofs_sb_has_sb_chksum(sbi)) { ret = erofs_superblock_csum_verify(sb, data); if (ret) goto out; |