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xattr: simplify listxattr helpers

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The generic_listxattr() and simple_xattr_list() helpers list xattrs and
contain duplicated code. Add two helpers that both generic_listxattr()
and simple_xattr_list() can use.

Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Christian Brauner (Microsoft) <brauner@kernel.org>
This commit is contained in:
Christian Brauner
2023-02-01 14:14:52 +01:00
committed by Christian Brauner (Microsoft)
parent fe15c26ee2
commit f2620f166e
4 changed files with 64 additions and 54 deletions
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7
include/linux/posix_acl.h
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@@ -106,6 +106,8 @@ struct posix_acl *vfs_get_acl(struct mnt_idmap *idmap,
struct dentry *dentry, const char *acl_name);
int vfs_remove_acl(struct mnt_idmap *idmap, struct dentry *dentry,
const char *acl_name);
int posix_acl_listxattr(struct inode *inode, char **buffer,
ssize_t *remaining_size);
#else
static inline int posix_acl_chmod(struct mnt_idmap *idmap,
struct dentry *dentry, umode_t mode)
@@ -153,6 +155,11 @@ static inline int vfs_remove_acl(struct mnt_idmap *idmap,
{
return -EOPNOTSUPP;
}
static inline int posix_acl_listxattr(struct inode *inode, char **buffer,
ssize_t *remaining_size)
{
return 0;
}
#endif /* CONFIG_FS_POSIX_ACL */
struct posix_acl *get_inode_acl(struct inode *inode, int type);