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erofs: unexport erofs_getxattr()

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No external users other than those in xattr.c.

Reviewed-by: Hongbo Li <lihongbo22@huawei.com>
Reviewed-by: Chao Yu <chao@kernel.org>
Signed-off-by: Gao Xiang <hsiangkao@linux.alibaba.com>
This commit is contained in:
Gao Xiang 2025-12-29 17:29:48 +08:00
parent 3afa4da388
commit 09225312f2
2 changed files with 54 additions and 61 deletions
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108
fs/erofs/xattr.c
View File

@ -125,58 +125,6 @@ static int erofs_init_inode_xattrs(struct inode *inode)
return ret;
}
static bool erofs_xattr_user_list(struct dentry *dentry)
{
return test_opt(&EROFS_SB(dentry->d_sb)->opt, XATTR_USER);
}
static bool erofs_xattr_trusted_list(struct dentry *dentry)
{
return capable(CAP_SYS_ADMIN);
}
static int erofs_xattr_generic_get(const struct xattr_handler *handler,
struct dentry *unused, struct inode *inode,
const char *name, void *buffer, size_t size)
{
if (handler->flags == EROFS_XATTR_INDEX_USER &&
!test_opt(&EROFS_I_SB(inode)->opt, XATTR_USER))
return -EOPNOTSUPP;
return erofs_getxattr(inode, handler->flags, name, buffer, size);
}
const struct xattr_handler erofs_xattr_user_handler = {
.prefix = XATTR_USER_PREFIX,
.flags = EROFS_XATTR_INDEX_USER,
.list = erofs_xattr_user_list,
.get = erofs_xattr_generic_get,
};
const struct xattr_handler erofs_xattr_trusted_handler = {
.prefix = XATTR_TRUSTED_PREFIX,
.flags = EROFS_XATTR_INDEX_TRUSTED,
.list = erofs_xattr_trusted_list,
.get = erofs_xattr_generic_get,
};
#ifdef CONFIG_EROFS_FS_SECURITY
const struct xattr_handler __maybe_unused erofs_xattr_security_handler = {
.prefix = XATTR_SECURITY_PREFIX,
.flags = EROFS_XATTR_INDEX_SECURITY,
.get = erofs_xattr_generic_get,
};
#endif
const struct xattr_handler * const erofs_xattr_handlers[] = {
&erofs_xattr_user_handler,
&erofs_xattr_trusted_handler,
#ifdef CONFIG_EROFS_FS_SECURITY
&erofs_xattr_security_handler,
#endif
NULL,
};
static int erofs_xattr_copy_to_buffer(struct erofs_xattr_iter *it,
unsigned int len)
{
@ -391,8 +339,8 @@ static int erofs_xattr_iter_shared(struct erofs_xattr_iter *it,
return i ? ret : -ENODATA;
}
int erofs_getxattr(struct inode *inode, int index, const char *name,
void *buffer, size_t buffer_size)
static int erofs_getxattr(struct inode *inode, int index, const char *name,
void *buffer, size_t buffer_size)
{
int ret;
unsigned int hashbit;
@ -462,6 +410,58 @@ ssize_t erofs_listxattr(struct dentry *dentry, char *buffer, size_t buffer_size)
return ret ? ret : it.buffer_ofs;
}
static bool erofs_xattr_user_list(struct dentry *dentry)
{
return test_opt(&EROFS_SB(dentry->d_sb)->opt, XATTR_USER);
}
static bool erofs_xattr_trusted_list(struct dentry *dentry)
{
return capable(CAP_SYS_ADMIN);
}
static int erofs_xattr_generic_get(const struct xattr_handler *handler,
struct dentry *unused, struct inode *inode,
const char *name, void *buffer, size_t size)
{
if (handler->flags == EROFS_XATTR_INDEX_USER &&
!test_opt(&EROFS_I_SB(inode)->opt, XATTR_USER))
return -EOPNOTSUPP;
return erofs_getxattr(inode, handler->flags, name, buffer, size);
}
const struct xattr_handler erofs_xattr_user_handler = {
.prefix = XATTR_USER_PREFIX,
.flags = EROFS_XATTR_INDEX_USER,
.list = erofs_xattr_user_list,
.get = erofs_xattr_generic_get,
};
const struct xattr_handler erofs_xattr_trusted_handler = {
.prefix = XATTR_TRUSTED_PREFIX,
.flags = EROFS_XATTR_INDEX_TRUSTED,
.list = erofs_xattr_trusted_list,
.get = erofs_xattr_generic_get,
};
#ifdef CONFIG_EROFS_FS_SECURITY
const struct xattr_handler __maybe_unused erofs_xattr_security_handler = {
.prefix = XATTR_SECURITY_PREFIX,
.flags = EROFS_XATTR_INDEX_SECURITY,
.get = erofs_xattr_generic_get,
};
#endif
const struct xattr_handler * const erofs_xattr_handlers[] = {
&erofs_xattr_user_handler,
&erofs_xattr_trusted_handler,
#ifdef CONFIG_EROFS_FS_SECURITY
&erofs_xattr_security_handler,
#endif
NULL,
};
void erofs_xattr_prefixes_cleanup(struct super_block *sb)
{
struct erofs_sb_info *sbi = EROFS_SB(sb);

7
fs/erofs/xattr.h
View File

@ -45,17 +45,10 @@ extern const struct xattr_handler * const erofs_xattr_handlers[];
int erofs_xattr_prefixes_init(struct super_block *sb);
void erofs_xattr_prefixes_cleanup(struct super_block *sb);
int erofs_getxattr(struct inode *, int, const char *, void *, size_t);
ssize_t erofs_listxattr(struct dentry *, char *, size_t);
#else
static inline int erofs_xattr_prefixes_init(struct super_block *sb) { return 0; }
static inline void erofs_xattr_prefixes_cleanup(struct super_block *sb) {}
static inline int erofs_getxattr(struct inode *inode, int index,
const char *name, void *buffer,
size_t buffer_size)
{
return -EOPNOTSUPP;
}
#define erofs_listxattr (NULL)
#define erofs_xattr_handlers (NULL)