From: "J. Bruce Fields" <bfields@fieldses.org>
To: "Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com>
Cc: agruen@kernel.org, akpm@linux-foundation.org,
dhowells@redhat.com, linux-fsdevel@vger.kernel.org,
linux-nfs@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH -V6 10/26] vfs: Make the inode passed to inode_change_ok non-const
Date: Wed, 7 Sep 2011 16:43:22 -0400 [thread overview]
Message-ID: <20110907204321.GF8074@fieldses.org> (raw)
In-Reply-To: <1315243548-18664-11-git-send-email-aneesh.kumar@linux.vnet.ibm.com>
On Mon, Sep 05, 2011 at 10:55:32PM +0530, Aneesh Kumar K.V wrote:
> From: Andreas Gruenbacher <agruen@kernel.org>
>
> We will need to call iop->permission and iop->get_acl from
> inode_change_ok() for additional permission checks, and both take a
> non-const inode.
OK, the essential difference being that richacls have a say in whether
we can change attributes or not, which posix acls (for example) don't?
--b.
>
> Signed-off-by: Andreas Gruenbacher <agruen@kernel.org>
> Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
> ---
> fs/attr.c | 2 +-
> include/linux/fs.h | 2 +-
> 2 files changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/fs/attr.c b/fs/attr.c
> index 538e279..f15e9e3 100644
> --- a/fs/attr.c
> +++ b/fs/attr.c
> @@ -26,7 +26,7 @@
> * Should be called as the first thing in ->setattr implementations,
> * possibly after taking additional locks.
> */
> -int inode_change_ok(const struct inode *inode, struct iattr *attr)
> +int inode_change_ok(struct inode *inode, struct iattr *attr)
> {
> unsigned int ia_valid = attr->ia_valid;
>
> diff --git a/include/linux/fs.h b/include/linux/fs.h
> index c5c98c5..8afb054 100644
> --- a/include/linux/fs.h
> +++ b/include/linux/fs.h
> @@ -2568,7 +2568,7 @@ extern int buffer_migrate_page(struct address_space *,
> #define buffer_migrate_page NULL
> #endif
>
> -extern int inode_change_ok(const struct inode *, struct iattr *);
> +extern int inode_change_ok(struct inode *, struct iattr *);
> extern int inode_newsize_ok(const struct inode *, loff_t offset);
> extern void setattr_copy(struct inode *inode, const struct iattr *attr);
>
> --
> 1.7.4.1
>
next prev parent reply other threads:[~2011-09-07 20:44 UTC|newest]
Thread overview: 116+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-09-05 17:25 [PATCH -V6 00/26] New ACL format for better NFSv4 acl interoperability Aneesh Kumar K.V
2011-09-05 17:25 ` [PATCH -V6 01/26] vfs: Indicate that the permission functions take all the MAY_* flags Aneesh Kumar K.V
2011-09-05 17:25 ` [PATCH -V6 02/26] vfs: Add hex format for MAY_* flag values Aneesh Kumar K.V
2011-09-05 17:25 ` [PATCH -V6 03/26] vfs: Pass all mask flags down to iop->check_acl Aneesh Kumar K.V
2011-09-05 17:25 ` [PATCH -V6 04/26] vfs: Add a comment to inode_permission() Aneesh Kumar K.V
2011-09-05 17:25 ` Aneesh Kumar K.V
2011-09-05 17:25 ` [PATCH -V6 05/26] vfs: Add generic IS_ACL() test for acl support Aneesh Kumar K.V
2011-09-05 17:25 ` Aneesh Kumar K.V
2011-09-05 17:25 ` [PATCH -V6 06/26] vfs: Add IS_RICHACL() test for richacl support Aneesh Kumar K.V
2011-09-05 17:25 ` Aneesh Kumar K.V
2011-09-05 17:25 ` [PATCH -V6 07/26] vfs: Optimize out IS_RICHACL() if CONFIG_FS_RICHACL is not defined Aneesh Kumar K.V
2011-09-05 17:25 ` [PATCH -V6 08/26] vfs: Add new file and directory create permission flags Aneesh Kumar K.V
2011-09-05 17:25 ` Aneesh Kumar K.V
2011-09-09 10:02 ` David Howells
2011-09-09 11:59 ` Aneesh Kumar K.V
2011-09-05 17:25 ` [PATCH -V6 09/26] vfs: Add delete child and delete self " Aneesh Kumar K.V
2011-09-07 20:39 ` J. Bruce Fields
2011-09-07 20:39 ` J. Bruce Fields
2011-09-08 9:30 ` Aneesh Kumar K.V
2011-09-08 20:07 ` J. Bruce Fields
2011-09-08 22:02 ` J. Bruce Fields
2011-09-09 5:19 ` Aneesh Kumar K.V
2011-09-09 5:19 ` Aneesh Kumar K.V
2011-09-09 5:25 ` Aneesh Kumar K.V
2011-09-09 12:02 ` J. Bruce Fields
2011-09-09 5:14 ` Aneesh Kumar K.V
2011-09-09 5:14 ` Aneesh Kumar K.V
2011-09-09 10:12 ` David Howells
2011-09-09 10:12 ` David Howells
2011-09-09 11:55 ` Aneesh Kumar K.V
2011-09-09 11:55 ` Aneesh Kumar K.V
2011-09-05 17:25 ` [PATCH -V6 10/26] vfs: Make the inode passed to inode_change_ok non-const Aneesh Kumar K.V
2011-09-07 20:43 ` J. Bruce Fields [this message]
2011-09-08 9:32 ` Aneesh Kumar K.V
2011-09-08 9:32 ` Aneesh Kumar K.V
2011-09-05 17:25 ` [PATCH -V6 11/26] vfs: Add permission flags for setting file attributes Aneesh Kumar K.V
2011-09-05 17:25 ` Aneesh Kumar K.V
2011-09-07 20:55 ` J. Bruce Fields
2011-09-08 9:36 ` Aneesh Kumar K.V
2011-09-08 20:08 ` J. Bruce Fields
2011-09-05 17:25 ` [PATCH -V6 12/26] vfs: Make acl_permission_check() work for richacls Aneesh Kumar K.V
2011-09-05 17:25 ` [PATCH -V6 13/26] richacl: In-memory representation and helper functions Aneesh Kumar K.V
2011-09-05 17:25 ` [PATCH -V6 14/26] richacl: Permission mapping functions Aneesh Kumar K.V
2011-09-05 17:25 ` Aneesh Kumar K.V
2011-09-07 21:24 ` J. Bruce Fields
2011-09-08 10:27 ` Aneesh Kumar K.V
2011-09-09 10:36 ` David Howells
2011-09-09 11:54 ` Aneesh Kumar K.V
2011-09-09 11:54 ` Aneesh Kumar K.V
2011-09-05 17:25 ` [PATCH -V6 15/26] richacl: Compute maximum file masks from an acl Aneesh Kumar K.V
2011-09-05 17:25 ` Aneesh Kumar K.V
2011-09-05 17:25 ` [PATCH -V6 16/26] richacl: Update the file masks in chmod() Aneesh Kumar K.V
2011-09-05 17:25 ` [PATCH -V6 17/26] richacl: Permission check algorithm Aneesh Kumar K.V
2011-09-07 21:50 ` J. Bruce Fields
2011-09-07 21:50 ` J. Bruce Fields
2011-09-08 10:34 ` Aneesh Kumar K.V
2011-09-08 10:34 ` Aneesh Kumar K.V
2011-09-05 17:25 ` [PATCH -V6 18/26] richacl: Create-time inheritance Aneesh Kumar K.V
2011-09-09 12:14 ` David Howells
2011-09-09 12:14 ` David Howells
2011-09-05 17:25 ` [PATCH -V6 19/26] richacl: Check if an acl is equivalent to a file mode Aneesh Kumar K.V
2011-09-05 17:25 ` Aneesh Kumar K.V
2011-09-05 17:25 ` [PATCH -V6 20/26] richacl: Automatic Inheritance Aneesh Kumar K.V
2011-09-07 21:56 ` J. Bruce Fields
2011-09-07 21:56 ` J. Bruce Fields
2011-09-05 17:25 ` [PATCH -V6 21/26] richacl: xattr mapping functions Aneesh Kumar K.V
2011-09-05 17:25 ` [PATCH -V6 22/26] vfs: Cache richacl in struct inode Aneesh Kumar K.V
2011-09-09 12:37 ` David Howells
2011-09-09 12:37 ` David Howells
2011-09-05 17:25 ` [PATCH -V6 23/26] vfs: Add richacl permission check Aneesh Kumar K.V
2011-09-05 17:25 ` Aneesh Kumar K.V
2011-09-05 17:25 ` [PATCH -V6 24/26] ext4: Use IS_POSIXACL() to check for POSIX ACL support Aneesh Kumar K.V
2011-09-05 17:25 ` [PATCH -V6 25/26] ext4: Implement rich acl for ext4 Aneesh Kumar K.V
2011-09-09 12:45 ` David Howells
2011-09-13 4:25 ` Aneesh Kumar K.V
2011-09-13 4:25 ` Aneesh Kumar K.V
2011-09-05 17:25 ` [PATCH -V6 26/26] ext4: Add temporary richacl mount option " Aneesh Kumar K.V
2011-09-05 17:25 ` Aneesh Kumar K.V
2011-09-05 22:42 ` [PATCH -V6 00/26] New ACL format for better NFSv4 acl interoperability Casey Schaufler
2011-09-05 22:42 ` Casey Schaufler
2011-09-08 0:46 ` Valdis.Kletnieks
2011-09-08 0:46 ` Valdis.Kletnieks-PjAqaU27lzQ
2011-09-12 21:34 ` Casey Schaufler
2011-09-12 22:20 ` J. Bruce Fields
2011-09-12 22:38 ` Casey Schaufler
2011-09-12 22:38 ` Casey Schaufler
2011-09-12 22:43 ` J. Bruce Fields
2011-09-12 23:23 ` Casey Schaufler
2011-09-12 23:53 ` J. Bruce Fields
2011-09-12 23:53 ` J. Bruce Fields
2011-09-13 4:41 ` Aneesh Kumar K.V
2011-09-13 4:41 ` Aneesh Kumar K.V
2011-09-13 18:12 ` Valdis.Kletnieks
2011-09-06 9:41 ` Steven Whitehouse
2011-09-06 13:58 ` Aneesh Kumar K.V
2011-09-06 13:58 ` Aneesh Kumar K.V
2011-09-07 20:18 ` J. Bruce Fields
2011-09-07 23:44 ` J. Bruce Fields
2011-09-08 10:40 ` Aneesh Kumar K.V
2011-09-08 10:40 ` Aneesh Kumar K.V
2011-09-09 12:48 ` David Howells
2011-09-09 12:48 ` David Howells
2011-09-09 14:03 ` David Howells
2011-09-09 14:03 ` David Howells
2011-09-12 22:23 ` J. Bruce Fields
2011-09-12 22:23 ` J. Bruce Fields
2011-09-12 22:27 ` David Howells
2011-09-12 22:27 ` David Howells
2011-09-13 5:07 ` Aneesh Kumar K.V
2011-09-21 7:30 ` Aneesh Kumar K.V
2011-09-21 19:45 ` J. Bruce Fields
2011-09-21 19:45 ` J. Bruce Fields
2011-09-22 5:31 ` Aneesh Kumar K.V
2011-09-22 5:31 ` Aneesh Kumar K.V
2011-09-22 12:01 ` J. Bruce Fields
2011-09-22 12:01 ` J. Bruce Fields
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