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| author | Hongzhen Luo <hongzhen@linux.alibaba.com> | 2024-08-06 13:22:08 +0200 |
|---|---|---|
| committer | Gao Xiang <hsiangkao@linux.alibaba.com> | 2024-08-19 05:06:20 +0200 |
| commit | 2c534624ae70100aeea0b5800b0f3768b2fd3cf0 (patch) | |
| tree | e0e8d2ab56a925e1618229c29b764e8c6f064e58 /fs/erofs | |
| parent | erofs: simplify readdir operation (diff) | |
| download | linux-2c534624ae70100aeea0b5800b0f3768b2fd3cf0.tar.xz linux-2c534624ae70100aeea0b5800b0f3768b2fd3cf0.zip | |
erofs: get rid of check_layout_compatibility()
Simple enough to just open-code it.
Signed-off-by: Hongzhen Luo <hongzhen@linux.alibaba.com>
Reviewed-by: Sandeep Dhavale <dhavale@google.com>
Reviewed-by: Gao Xiang <hsiangkao@linux.alibaba.com>
Link: https://lore.kernel.org/r/20240806112208.150323-1-hongzhen@linux.alibaba.com
Signed-off-by: Gao Xiang <hsiangkao@linux.alibaba.com>
Diffstat (limited to 'fs/erofs')
| -rw-r--r-- | fs/erofs/super.c | 26 |
1 files changed, 6 insertions, 20 deletions
diff --git a/fs/erofs/super.c b/fs/erofs/super.c index 32ce5b35e1df..6cb5c8916174 100644 --- a/fs/erofs/super.c +++ b/fs/erofs/super.c @@ -108,22 +108,6 @@ static void erofs_free_inode(struct inode *inode) kmem_cache_free(erofs_inode_cachep, vi); } -static bool check_layout_compatibility(struct super_block *sb, - struct erofs_super_block *dsb) -{ - const unsigned int feature = le32_to_cpu(dsb->feature_incompat); - - EROFS_SB(sb)->feature_incompat = feature; - - /* check if current kernel meets all mandatory requirements */ - if (feature & (~EROFS_ALL_FEATURE_INCOMPAT)) { - erofs_err(sb, "unidentified incompatible feature %x, please upgrade kernel", - feature & ~EROFS_ALL_FEATURE_INCOMPAT); - return false; - } - return true; -} - /* read variable-sized metadata, offset will be aligned by 4-byte */ void *erofs_read_metadata(struct super_block *sb, struct erofs_buf *buf, erofs_off_t *offset, int *lengthp) @@ -279,7 +263,7 @@ static int erofs_scan_devices(struct super_block *sb, static int erofs_read_superblock(struct super_block *sb) { - struct erofs_sb_info *sbi; + struct erofs_sb_info *sbi = EROFS_SB(sb); struct erofs_buf buf = __EROFS_BUF_INITIALIZER; struct erofs_super_block *dsb; void *data; @@ -291,9 +275,7 @@ static int erofs_read_superblock(struct super_block *sb) return PTR_ERR(data); } - sbi = EROFS_SB(sb); dsb = (struct erofs_super_block *)(data + EROFS_SUPER_OFFSET); - ret = -EINVAL; if (le32_to_cpu(dsb->magic) != EROFS_SUPER_MAGIC_V1) { erofs_err(sb, "cannot find valid erofs superblock"); @@ -318,8 +300,12 @@ static int erofs_read_superblock(struct super_block *sb) } ret = -EINVAL; - if (!check_layout_compatibility(sb, dsb)) + sbi->feature_incompat = le32_to_cpu(dsb->feature_incompat); + if (sbi->feature_incompat & ~EROFS_ALL_FEATURE_INCOMPAT) { + erofs_err(sb, "unidentified incompatible feature %x, please upgrade kernel", + sbi->feature_incompat & ~EROFS_ALL_FEATURE_INCOMPAT); goto out; + } sbi->sb_size = 128 + dsb->sb_extslots * EROFS_SB_EXTSLOT_SIZE; if (sbi->sb_size > PAGE_SIZE - EROFS_SUPER_OFFSET) { |