xattr handlers: Pass handler to operations instead of flags

The xattr_handler operations are currently all passed a file system
specific flags value which the operations can use to disambiguate between
different handlers; some file systems use that to distinguish the xattr
namespace, for example.  In some oprations, it would be useful to also have
access to the handler prefix.  To allow that, pass a pointer to the handler
to operations instead of the flags value alone.

Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Andreas Gruenbacher
2015-10-04 19:18:51 +02:00
committed by Al Viro
parent bf781714b3
commit d9a82a0403
32 changed files with 306 additions and 226 deletions

View File

@@ -8,8 +8,8 @@
#include <linux/uaccess.h>
static int
trusted_get(struct dentry *dentry, const char *name, void *buffer, size_t size,
int handler_flags)
trusted_get(const struct xattr_handler *handler, struct dentry *dentry,
const char *name, void *buffer, size_t size)
{
if (strlen(name) < sizeof(XATTR_TRUSTED_PREFIX))
return -EINVAL;
@@ -21,8 +21,8 @@ trusted_get(struct dentry *dentry, const char *name, void *buffer, size_t size,
}
static int
trusted_set(struct dentry *dentry, const char *name, const void *buffer,
size_t size, int flags, int handler_flags)
trusted_set(const struct xattr_handler *handler, struct dentry *dentry,
const char *name, const void *buffer, size_t size, int flags)
{
if (strlen(name) < sizeof(XATTR_TRUSTED_PREFIX))
return -EINVAL;
@@ -33,8 +33,9 @@ trusted_set(struct dentry *dentry, const char *name, const void *buffer,
return reiserfs_xattr_set(d_inode(dentry), name, buffer, size, flags);
}
static size_t trusted_list(struct dentry *dentry, char *list, size_t list_size,
const char *name, size_t name_len, int handler_flags)
static size_t trusted_list(const struct xattr_handler *handler,
struct dentry *dentry, char *list, size_t list_size,
const char *name, size_t name_len)
{
const size_t len = name_len + 1;