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fs: don't call posix_acl_listxattr in generic_listxattr

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Commit f2620f166e2a caused the kernel to start emitting POSIX ACL xattrs
for NFSv4 inodes, which it doesn't support. The only other user of
generic_listxattr is HFS (classic) and it doesn't support POSIX ACLs
either.

Fixes: f2620f166e2a xattr: simplify listxattr helpers
Reported-by: Ondrej Valousek <ondrej.valousek.xm@renesas.com>
Signed-off-by: Jeff Layton <jlayton@kernel.org>
Message-Id: <20230516124655.82283-1-jlayton@kernel.org>
Signed-off-by: Christian Brauner <brauner@kernel.org>
This commit is contained in:
Jeff Layton 2023-05-16 08:46:54 -04:00 committed by Christian Brauner
parent f15afbd34d
commit 3a7bb21b6f
No known key found for this signature in database
GPG Key ID: 91C61BC06578DCA2
1 changed files with 9 additions and 6 deletions
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15
fs/xattr.c
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@ -985,9 +985,16 @@ int xattr_list_one(char **buffer, ssize_t *remaining_size, const char *name)
return 0;
}
/*
/**
* generic_listxattr - run through a dentry's xattr list() operations
* @dentry: dentry to list the xattrs
* @buffer: result buffer
* @buffer_size: size of @buffer
*
* Combine the results of the list() operation from every xattr_handler in the
* list.
* xattr_handler stack.
*
* Note that this will not include the entries for POSIX ACLs.
*/
ssize_t
generic_listxattr(struct dentry *dentry, char *buffer, size_t buffer_size)
@ -996,10 +1003,6 @@ generic_listxattr(struct dentry *dentry, char *buffer, size_t buffer_size)
ssize_t remaining_size = buffer_size;
int err = 0;
err = posix_acl_listxattr(d_inode(dentry), &buffer, &remaining_size);
if (err)
return err;
for_each_xattr_handler(handlers, handler) {
if (!handler->name || (handler->list && !handler->list(dentry)))
continue;