From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Aneesh Kumar K.V" Subject: [PATCH -V8 03/26] vfs: Pass all mask flags down to iop->check_acl Date: Sun, 23 Oct 2011 23:13:32 +0530 Message-ID: <1319391835-5829-4-git-send-email-aneesh.kumar@linux.vnet.ibm.com> References: <1319391835-5829-1-git-send-email-aneesh.kumar@linux.vnet.ibm.com> Cc: aneesh.kumar@linux.vnet.ibm.com, linux-fsdevel@vger.kernel.org, linux-nfs@vger.kernel.org, linux-kernel@vger.kernel.org To: agruen@kernel.org, bfields@fieldses.org, akpm@linux-foundation.org, viro@zeniv.linux.org.uk, dhowells@redhat.com Return-path: In-Reply-To: <1319391835-5829-1-git-send-email-aneesh.kumar@linux.vnet.ibm.com> Sender: linux-kernel-owner@vger.kernel.org List-Id: linux-fsdevel.vger.kernel.org From: Andreas Gruenbacher Some file permission models differentiate between writing to a file (MAY_WRITE) and appending to it (MAY_WRITE | MAY_APPEND). Pass all the mask flags down to iop->check_acl so that filesystems can distinguish between writing and appending. All users of iop->check_acl pass the mask value back into posix_acl_permission(); strip off the additional mask flags there. Acked-by: J. Bruce Fields Acked-by: David Howells Signed-off-by: Andreas Gruenbacher Signed-off-by: Aneesh Kumar K.V --- fs/namei.c | 2 -- fs/posix_acl.c | 2 ++ 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/fs/namei.c b/fs/namei.c index 2a4574f..276cd30 100644 --- a/fs/namei.c +++ b/fs/namei.c @@ -227,8 +227,6 @@ static int acl_permission_check(struct inode *inode, int mask) { unsigned int mode = inode->i_mode; - mask &= MAY_READ | MAY_WRITE | MAY_EXEC | MAY_NOT_BLOCK; - if (current_user_ns() != inode_userns(inode)) goto other_perms; diff --git a/fs/posix_acl.c b/fs/posix_acl.c index 10027b4..cea4623 100644 --- a/fs/posix_acl.c +++ b/fs/posix_acl.c @@ -218,6 +218,8 @@ posix_acl_permission(struct inode *inode, const struct posix_acl *acl, int want) const struct posix_acl_entry *pa, *pe, *mask_obj; int found = 0; + want &= MAY_READ | MAY_WRITE | MAY_EXEC | MAY_NOT_BLOCK; + FOREACH_ACL_ENTRY(pa, acl, pe) { switch(pa->e_tag) { case ACL_USER_OBJ: -- 1.7.5.4