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authorAndreas Gruenbacher <agruen@kernel.org>2011-10-23 13:43:33 -0400
committerroot <root@serles.lst.de>2011-10-28 08:58:55 -0400
commit948409c74d217f6cf054b8c927765a1c3fe16b53 (patch)
treee4d0d3d07eb8f11333fd050e3d577834da600db5 /fs/namei.c
parentd124b60a838141bb9cac1b6567e9ca4539d1fff0 (diff)
vfs: add a comment to inode_permission()
Acked-by: J. Bruce Fields <bfields@redhat.com> Acked-by: David Howells <dhowells@redhat.com> Signed-off-by: Andreas Gruenbacher <agruen@kernel.org> Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Signed-off-by: Christoph Hellwig <hch@lst.de>
Diffstat (limited to 'fs/namei.c')
-rw-r--r--fs/namei.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/fs/namei.c b/fs/namei.c
index 276cd30ab8f8..9061157e39d6 100644
--- a/fs/namei.c
+++ b/fs/namei.c
@@ -221,7 +221,7 @@ static int check_acl(struct inode *inode, int mask)
221} 221}
222 222
223/* 223/*
224 * This does basic POSIX ACL permission checking 224 * This does the basic permission checking
225 */ 225 */
226static int acl_permission_check(struct inode *inode, int mask) 226static int acl_permission_check(struct inode *inode, int mask)
227{ 227{
@@ -271,7 +271,7 @@ int generic_permission(struct inode *inode, int mask)
271 int ret; 271 int ret;
272 272
273 /* 273 /*
274 * Do the basic POSIX ACL permission checks. 274 * Do the basic permission checks.
275 */ 275 */
276 ret = acl_permission_check(inode, mask); 276 ret = acl_permission_check(inode, mask);
277 if (ret != -EACCES) 277 if (ret != -EACCES)
@@ -335,6 +335,8 @@ static inline int do_inode_permission(struct inode *inode, int mask)
335 * We use "fsuid" for this, letting us set arbitrary permissions 335 * We use "fsuid" for this, letting us set arbitrary permissions
336 * for filesystem access without changing the "normal" uids which 336 * for filesystem access without changing the "normal" uids which
337 * are used for other things. 337 * are used for other things.
338 *
339 * When checking for MAY_APPEND, MAY_WRITE must also be set in @mask.
338 */ 340 */
339int inode_permission(struct inode *inode, int mask) 341int inode_permission(struct inode *inode, int mask)
340{ 342{