helpers for acl caching + switch to those
helpers: get_cached_acl(inode, type), set_cached_acl(inode, type, acl),
forget_cached_acl(inode, type).
ubifs/xattr.c needed includes reordered, the rest is a plain switchover.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
diff --git a/fs/reiserfs/xattr_acl.c b/fs/reiserfs/xattr_acl.c
index b6e473fa..35d6e67 100644
--- a/fs/reiserfs/xattr_acl.c
+++ b/fs/reiserfs/xattr_acl.c
@@ -188,29 +188,6 @@
return ERR_PTR(-EINVAL);
}
-static inline void iset_acl(struct inode *inode, struct posix_acl **i_acl,
- struct posix_acl *acl)
-{
- spin_lock(&inode->i_lock);
- if (*i_acl != ACL_NOT_CACHED)
- posix_acl_release(*i_acl);
- *i_acl = posix_acl_dup(acl);
- spin_unlock(&inode->i_lock);
-}
-
-static inline struct posix_acl *iget_acl(struct inode *inode,
- struct posix_acl **i_acl)
-{
- struct posix_acl *acl = ACL_NOT_CACHED;
-
- spin_lock(&inode->i_lock);
- if (*i_acl != ACL_NOT_CACHED)
- acl = posix_acl_dup(*i_acl);
- spin_unlock(&inode->i_lock);
-
- return acl;
-}
-
/*
* Inode operation get_posix_acl().
*
@@ -220,31 +197,29 @@
struct posix_acl *reiserfs_get_acl(struct inode *inode, int type)
{
char *name, *value;
- struct posix_acl *acl, **p_acl;
+ struct posix_acl *acl;
int size;
int retval;
+ acl = get_cached_acl(inode, type);
+ if (acl != ACL_NOT_CACHED)
+ return acl;
+
switch (type) {
case ACL_TYPE_ACCESS:
name = POSIX_ACL_XATTR_ACCESS;
- p_acl = &inode->i_acl;
break;
case ACL_TYPE_DEFAULT:
name = POSIX_ACL_XATTR_DEFAULT;
- p_acl = &inode->i_default_acl;
break;
default:
- return ERR_PTR(-EINVAL);
+ BUG();
}
- acl = iget_acl(inode, p_acl);
- if (acl != ACL_NOT_CACHED)
- return acl;
-
size = reiserfs_xattr_get(inode, name, NULL, 0);
if (size < 0) {
if (size == -ENODATA || size == -ENOSYS) {
- *p_acl = NULL;
+ set_cached_acl(inode, type, NULL);
return NULL;
}
return ERR_PTR(size);
@@ -259,14 +234,13 @@
/* This shouldn't actually happen as it should have
been caught above.. but just in case */
acl = NULL;
- *p_acl = acl;
} else if (retval < 0) {
acl = ERR_PTR(retval);
} else {
acl = posix_acl_from_disk(value, retval);
- if (!IS_ERR(acl))
- iset_acl(inode, p_acl, acl);
}
+ if (!IS_ERR(acl))
+ set_cached_acl(inode, type, acl);
kfree(value);
return acl;
@@ -284,7 +258,6 @@
{
char *name;
void *value = NULL;
- struct posix_acl **p_acl;
size_t size = 0;
int error;
@@ -294,7 +267,6 @@
switch (type) {
case ACL_TYPE_ACCESS:
name = POSIX_ACL_XATTR_ACCESS;
- p_acl = &inode->i_acl;
if (acl) {
mode_t mode = inode->i_mode;
error = posix_acl_equiv_mode(acl, &mode);
@@ -309,7 +281,6 @@
break;
case ACL_TYPE_DEFAULT:
name = POSIX_ACL_XATTR_DEFAULT;
- p_acl = &inode->i_default_acl;
if (!S_ISDIR(inode->i_mode))
return acl ? -EACCES : 0;
break;
@@ -342,7 +313,7 @@
kfree(value);
if (!error)
- iset_acl(inode, p_acl, acl);
+ set_cached_acl(inode, type, acl);
return error;
}