提交 948409c7 编写于 作者: A Andreas Gruenbacher 提交者: root

vfs: add a comment to inode_permission()

Acked-by: NJ. Bruce Fields <bfields@redhat.com>
Acked-by: NDavid Howells <dhowells@redhat.com>
Signed-off-by: NAndreas Gruenbacher <agruen@kernel.org>
Signed-off-by: NAneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: NChristoph Hellwig <hch@lst.de>
上级 d124b60a
......@@ -221,7 +221,7 @@ static int check_acl(struct inode *inode, int mask)
}
/*
* This does basic POSIX ACL permission checking
* This does the basic permission checking
*/
static int acl_permission_check(struct inode *inode, int mask)
{
......@@ -271,7 +271,7 @@ int generic_permission(struct inode *inode, int mask)
int ret;
/*
* Do the basic POSIX ACL permission checks.
* Do the basic permission checks.
*/
ret = acl_permission_check(inode, mask);
if (ret != -EACCES)
......@@ -335,6 +335,8 @@ static inline int do_inode_permission(struct inode *inode, int mask)
* We use "fsuid" for this, letting us set arbitrary permissions
* for filesystem access without changing the "normal" uids which
* are used for other things.
*
* When checking for MAY_APPEND, MAY_WRITE must also be set in @mask.
*/
int inode_permission(struct inode *inode, int mask)
{
......
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