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| author | Huang Jianan <huangjianan@oppo.com> | 2021-12-01 22:54:36 +0800 |
|---|---|---|
| committer | Gao Xiang <hsiangkao@linux.alibaba.com> | 2021-12-08 09:40:37 +0800 |
| commit | 168e9a76200c54c584a23aa88c62c53c4b0edd66 (patch) | |
| tree | b52022a586612b096a6d942136262acbee1a685d /fs/erofs/internal.h | |
| parent | 7e508f2ca8bbda8cabbd4753bc727a7f66837a12 (diff) | |
| download | linux-stable-168e9a76200c54c584a23aa88c62c53c4b0edd66.tar.gz linux-stable-168e9a76200c54c584a23aa88c62c53c4b0edd66.tar.bz2 linux-stable-168e9a76200c54c584a23aa88c62c53c4b0edd66.zip | |
erofs: add sysfs interface
Add sysfs interface to configure erofs related parameters later.
Link: https://lore.kernel.org/r/20211201145436.4357-1-huangjianan@oppo.com
Reviewed-by: Chao Yu <chao@kernel.org>
Reviewed-by: Gao Xiang <hsiangkao@linux.alibaba.com>
Signed-off-by: Huang Jianan <huangjianan@oppo.com>
Signed-off-by: Gao Xiang <hsiangkao@linux.alibaba.com>
Diffstat (limited to 'fs/erofs/internal.h')
| -rw-r--r-- | fs/erofs/internal.h | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/fs/erofs/internal.h b/fs/erofs/internal.h index 273754e7b340..43f0332fa489 100644 --- a/fs/erofs/internal.h +++ b/fs/erofs/internal.h @@ -134,6 +134,10 @@ struct erofs_sb_info { u8 volume_name[16]; /* volume name */ u32 feature_compat; u32 feature_incompat; + + /* sysfs support */ + struct kobject s_kobj; /* /sys/fs/erofs/<devname> */ + struct completion s_kobj_unregister; }; #define EROFS_SB(sb) ((struct erofs_sb_info *)(sb)->s_fs_info) @@ -261,7 +265,9 @@ static inline bool erofs_sb_has_##name(struct erofs_sb_info *sbi) \ EROFS_FEATURE_FUNCS(zero_padding, incompat, INCOMPAT_ZERO_PADDING) EROFS_FEATURE_FUNCS(compr_cfgs, incompat, INCOMPAT_COMPR_CFGS) EROFS_FEATURE_FUNCS(big_pcluster, incompat, INCOMPAT_BIG_PCLUSTER) +EROFS_FEATURE_FUNCS(chunked_file, incompat, INCOMPAT_CHUNKED_FILE) EROFS_FEATURE_FUNCS(device_table, incompat, INCOMPAT_DEVICE_TABLE) +EROFS_FEATURE_FUNCS(compr_head2, incompat, INCOMPAT_COMPR_HEAD2) EROFS_FEATURE_FUNCS(sb_chksum, compat, COMPAT_SB_CHKSUM) /* atomic flag definitions */ @@ -498,6 +504,12 @@ int erofs_pcpubuf_growsize(unsigned int nrpages); void erofs_pcpubuf_init(void); void erofs_pcpubuf_exit(void); +/* sysfs.c */ +int erofs_register_sysfs(struct super_block *sb); +void erofs_unregister_sysfs(struct super_block *sb); +int __init erofs_init_sysfs(void); +void erofs_exit_sysfs(void); + /* utils.c / zdata.c */ struct page *erofs_allocpage(struct page **pagepool, gfp_t gfp); static inline void erofs_pagepool_add(struct page **pagepool, |