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xattr handlers: Simplify list operation

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Change the list operation to only return whether or not an attribute
should be listed.  Copying the attribute names into the buffer is moved
to the callers.

Since the result only depends on the dentry and not on the attribute
name, we do not pass the attribute name to list operations.

Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Andreas Gruenbacher
2015-12-02 14:44:43 +01:00
committed by Al Viro
parent 1046cb1195
commit 764a5c6b1f
22 changed files with 113 additions and 335 deletions
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17
fs/posix_acl.c
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@@ -823,21 +823,10 @@ out:
return ret;
}
static size_t
posix_acl_xattr_list(const struct xattr_handler *handler,
struct dentry *dentry, char *list, size_t list_size,
const char *name, size_t name_len)
static bool
posix_acl_xattr_list(struct dentry *dentry)
{
const char *xname = handler->name;
size_t size;
if (!IS_POSIXACL(d_backing_inode(dentry)))
return 0;
size = strlen(xname) + 1;
if (list && size <= list_size)
memcpy(list, xname, size);
return size;
return IS_POSIXACL(d_backing_inode(dentry));
}
const struct xattr_handler posix_acl_access_xattr_handler = {