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xattr handlers: Pass handler to operations instead of flags

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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
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10
fs/xfs/xfs_xattr.c
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@@ -32,9 +32,10 @@
static int
xfs_xattr_get(struct dentry *dentry, const char *name,
void *value, size_t size, int xflags)
xfs_xattr_get(const struct xattr_handler *handler, struct dentry *dentry,
const char *name, void *value, size_t size)
{
int xflags = handler->flags;
struct xfs_inode *ip = XFS_I(d_inode(dentry));
int error, asize = size;
@@ -54,9 +55,10 @@ xfs_xattr_get(struct dentry *dentry, const char *name,
}
static int
xfs_xattr_set(struct dentry *dentry, const char *name, const void *value,
size_t size, int flags, int xflags)
xfs_xattr_set(const struct xattr_handler *handler, struct dentry *dentry,
const char *name, const void *value, size_t size, int flags)
{
int xflags = handler->flags;
struct xfs_inode *ip = XFS_I(d_inode(dentry));
if (strcmp(name, "") == 0)