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xattr handlers: Pass handler to operations instead of flags

Browse source 
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 <[email protected]>
Reviewed-by: Christoph Hellwig <[email protected]>
Signed-off-by: Al Viro <[email protected]>
This commit is contained in:
Andreas Gruenbacher 2015-10-04 19:18:51 +02:00 • committed by Al Viro
commit d9a82a0403
32 changed files with 306 additions and 226 deletions
Download patch file Download diff file Expand all files Collapse all files

18
fs/9p/acl.c
View file

@ -230,11 +230,13 @@ static int v9fs_remote_get_acl(struct dentry *dentry, const char *name,
return v9fs_xattr_get(dentry, full_name, buffer, size);
}
static int v9fs_xattr_get_acl(struct dentry *dentry, const char *name,
void *buffer, size_t size, int type)
static int v9fs_xattr_get_acl(const struct xattr_handler *handler,
struct dentry *dentry, const char *name,
void *buffer, size_t size)
{
struct v9fs_session_info *v9ses;
struct posix_acl *acl;
int type = handler->flags;
int error;
if (strcmp(name, "") != 0)
@ -278,9 +280,9 @@ static int v9fs_remote_set_acl(struct dentry *dentry, const char *name,
}
static int v9fs_xattr_set_acl(struct dentry *dentry, const char *name,
const void *value, size_t size,
int flags, int type)
static int v9fs_xattr_set_acl(const struct xattr_handler *handler,
struct dentry *dentry, const char *name,
const void *value, size_t size, int flags)
{
int retval;
struct posix_acl *acl;
@ -297,7 +299,7 @@ static int v9fs_xattr_set_acl(struct dentry *dentry, const char *name,
*/
if ((v9ses->flags & V9FS_ACCESS_MASK) != V9FS_ACCESS_CLIENT)
return v9fs_remote_set_acl(dentry, name,
value, size, flags, type);
value, size, flags, handler->flags);
if (S_ISLNK(inode->i_mode))
return -EOPNOTSUPP;
@ -316,7 +318,7 @@ static int v9fs_xattr_set_acl(struct dentry *dentry, const char *name,
} else
acl = NULL;
switch (type) {
switch (handler->flags) {
case ACL_TYPE_ACCESS:
name = POSIX_ACL_XATTR_ACCESS;
if (acl) {
@ -360,7 +362,7 @@ static int v9fs_xattr_set_acl(struct dentry *dentry, const char *name,
}
retval = v9fs_xattr_set(dentry, name, value, size, flags);
if (!retval)
set_cached_acl(inode, type, acl);
set_cached_acl(inode, handler->flags, acl);
err_out:
posix_acl_release(acl);
return retval;

10
fs/9p/xattr_security.c
View file

@ -19,8 +19,9 @@
#include <linux/slab.h>
#include "xattr.h"
static int v9fs_xattr_security_get(struct dentry *dentry, const char *name,
void *buffer, size_t size, int type)
static int v9fs_xattr_security_get(const struct xattr_handler *handler,
struct dentry *dentry, const char *name,
void *buffer, size_t size)
{
int retval;
char *full_name;
@ -46,8 +47,9 @@ static int v9fs_xattr_security_get(struct dentry *dentry, const char *name,
return retval;
}
static int v9fs_xattr_security_set(struct dentry *dentry, const char *name,
const void *value, size_t size, int flags, int type)
static int v9fs_xattr_security_set(const struct xattr_handler *handler,
struct dentry *dentry, const char *name,
const void *value, size_t size, int flags)
{
int retval;
char *full_name;

10
fs/9p/xattr_trusted.c
View file

@ -19,8 +19,9 @@
#include <linux/slab.h>
#include "xattr.h"
static int v9fs_xattr_trusted_get(struct dentry *dentry, const char *name,
void *buffer, size_t size, int type)
static int v9fs_xattr_trusted_get(const struct xattr_handler *handler,
struct dentry *dentry, const char *name,
void *buffer, size_t size)
{
int retval;
char *full_name;
@ -46,8 +47,9 @@ static int v9fs_xattr_trusted_get(struct dentry *dentry, const char *name,
return retval;
}
static int v9fs_xattr_trusted_set(struct dentry *dentry, const char *name,
const void *value, size_t size, int flags, int type)
static int v9fs_xattr_trusted_set(const struct xattr_handler *handler,
struct dentry *dentry, const char *name,
const void *value, size_t size, int flags)
{
int retval;
char *full_name;

10
fs/9p/xattr_user.c
View file

@ -19,8 +19,9 @@
#include <linux/slab.h>
#include "xattr.h"
static int v9fs_xattr_user_get(struct dentry *dentry, const char *name,
void *buffer, size_t size, int type)
static int v9fs_xattr_user_get(const struct xattr_handler *handler,
struct dentry *dentry, const char *name,
void *buffer, size_t size)
{
int retval;
char *full_name;
@ -46,8 +47,9 @@ static int v9fs_xattr_user_get(struct dentry *dentry, const char *name,
return retval;
}
static int v9fs_xattr_user_set(struct dentry *dentry, const char *name,
const void *value, size_t size, int flags, int type)
static int v9fs_xattr_user_set(const struct xattr_handler *handler,
struct dentry *dentry, const char *name,
const void *value, size_t size, int flags)
{
int retval;
char *full_name;