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-rw-r--r--fs/gfs2/acl.c27
1 files changed, 25 insertions, 2 deletions
diff --git a/fs/gfs2/acl.c b/fs/gfs2/acl.c
index bd0fce964c41..3eb1ea846173 100644
--- a/fs/gfs2/acl.c
+++ b/fs/gfs2/acl.c
@@ -48,6 +48,10 @@ static struct posix_acl *gfs2_acl_get(struct gfs2_inode *ip, int type)
if (!ip->i_eattr)
return NULL;
+ acl = get_cached_acl(&ip->i_inode, type);
+ if (acl != ACL_NOT_CACHED)
+ return acl;
+
name = gfs2_acl_name(type);
if (name == NULL)
return ERR_PTR(-EINVAL);
@@ -123,6 +127,8 @@ static int gfs2_acl_set(struct inode *inode, int type, struct posix_acl *acl)
if (error < 0)
goto out;
error = gfs2_xattr_set(inode, GFS2_EATYPE_SYS, name, data, len, 0);
+ if (!error)
+ set_cached_acl(inode, type, acl);
out:
kfree(data);
return error;
@@ -209,6 +215,7 @@ int gfs2_acl_chmod(struct gfs2_inode *ip, struct iattr *attr)
posix_acl_to_xattr(acl, data, len);
error = gfs2_xattr_acl_chmod(ip, attr, data);
kfree(data);
+ set_cached_acl(&ip->i_inode, ACL_TYPE_ACCESS, acl);
}
out:
@@ -228,15 +235,25 @@ static int gfs2_acl_type(const char *name)
static int gfs2_xattr_system_get(struct inode *inode, const char *name,
void *buffer, size_t size)
{
+ struct posix_acl *acl;
int type;
+ int error;
type = gfs2_acl_type(name);
if (type < 0)
return type;
- return gfs2_xattr_get(inode, GFS2_EATYPE_SYS, name, buffer, size);
-}
+ acl = gfs2_acl_get(GFS2_I(inode), type);
+ if (IS_ERR(acl))
+ return PTR_ERR(acl);
+ if (acl == NULL)
+ return -ENODATA;
+ error = posix_acl_to_xattr(acl, buffer, size);
+ posix_acl_release(acl);
+
+ return error;
+}
static int gfs2_xattr_system_set(struct inode *inode, const char *name,
const void *value, size_t size, int flags)
@@ -303,6 +320,12 @@ static int gfs2_xattr_system_set(struct inode *inode, const char *name,
set_acl:
error = gfs2_xattr_set(inode, GFS2_EATYPE_SYS, name, value, size, 0);
+ if (!error) {
+ if (acl)
+ set_cached_acl(inode, type, acl);
+ else
+ forget_cached_acl(inode, type);
+ }
out_release:
posix_acl_release(acl);
out: