diff options
Diffstat (limited to 'fs/erofs/sysfs.c')
| -rw-r--r-- | fs/erofs/sysfs.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/fs/erofs/sysfs.c b/fs/erofs/sysfs.c index 33e15fa63c82..666693432107 100644 --- a/fs/erofs/sysfs.c +++ b/fs/erofs/sysfs.c @@ -16,6 +16,7 @@ enum { enum { struct_erofs_sb_info, + struct_erofs_mount_opts, }; struct erofs_attr { @@ -54,7 +55,14 @@ static struct erofs_attr erofs_attr_##_name = { \ #define ATTR_LIST(name) (&erofs_attr_##name.attr) +#ifdef CONFIG_EROFS_FS_ZIP +EROFS_ATTR_RW_UI(sync_decompress, erofs_mount_opts); +#endif + static struct attribute *erofs_attrs[] = { +#ifdef CONFIG_EROFS_FS_ZIP + ATTR_LIST(sync_decompress), +#endif NULL, }; ATTRIBUTE_GROUPS(erofs); @@ -85,6 +93,8 @@ static unsigned char *__struct_ptr(struct erofs_sb_info *sbi, { if (struct_type == struct_erofs_sb_info) return (unsigned char *)sbi + offset; + if (struct_type == struct_erofs_mount_opts) + return (unsigned char *)&sbi->opt + offset; return NULL; } @@ -130,6 +140,11 @@ static ssize_t erofs_attr_store(struct kobject *kobj, struct attribute *attr, return ret; if (t != (unsigned int)t) return -ERANGE; +#ifdef CONFIG_EROFS_FS_ZIP + if (!strcmp(a->attr.name, "sync_decompress") && + (t > EROFS_SYNC_DECOMPRESS_FORCE_OFF)) + return -EINVAL; +#endif *(unsigned int *)ptr = t; return len; case attr_pointer_bool: |