* [PATCH 1/2] Disallow appends to sysfs files
@ 2005-01-25 22:38 Mitch Williams
2005-01-25 22:46 ` Josh Boyer
0 siblings, 1 reply; 3+ messages in thread
From: Mitch Williams @ 2005-01-25 22:38 UTC (permalink / raw)
To: linux-kernel; +Cc: greg
This patch causes an error to be returned if the caller attempts to open a
sysfs file in append mode.
This patch applies cleanly to 2.6.11-rc1.
Signed-off-by: Mitch Williams <mitch.a.williams@intel.com>
diff -urpN -X dontdiff linux-2.6.11-clean/fs/sysfs/file.c linux-2.6.11/fs/sysfs/file.c
--- linux-2.6.11-clean/fs/sysfs/file.c 2004-12-24 13:33:50.000000000 -0800
+++ linux-2.6.11/fs/sysfs/file.c 2005-01-24 16:26:21.000000000 -0800
@@ -275,6 +275,11 @@ static int check_perm(struct inode * ino
if (!ops)
goto Eaccess;
+ /* Is the file is open for append? Sorry, we don't do that. */
+ if (file->f_flags & O_APPEND) {
+ goto Einval;
+ }
+
/* File needs write support.
* The inode's perms must say it's ok,
* and we must have a store method.
^ permalink raw reply [flat|nested] 3+ messages in thread* Re: [PATCH 1/2] Disallow appends to sysfs files
2005-01-25 22:38 [PATCH 1/2] Disallow appends to sysfs files Mitch Williams
@ 2005-01-25 22:46 ` Josh Boyer
2005-01-25 22:50 ` Mitch Williams
0 siblings, 1 reply; 3+ messages in thread
From: Josh Boyer @ 2005-01-25 22:46 UTC (permalink / raw)
To: Mitch Williams; +Cc: linux-kernel, greg
On Tue, 2005-01-25 at 16:38, Mitch Williams wrote:
> This patch causes an error to be returned if the caller attempts to open a
> sysfs file in append mode.
>
> This patch applies cleanly to 2.6.11-rc1.
>
> Signed-off-by: Mitch Williams <mitch.a.williams@intel.com>
>
> diff -urpN -X dontdiff linux-2.6.11-clean/fs/sysfs/file.c linux-2.6.11/fs/sysfs/file.c
> --- linux-2.6.11-clean/fs/sysfs/file.c 2004-12-24 13:33:50.000000000 -0800
> +++ linux-2.6.11/fs/sysfs/file.c 2005-01-24 16:26:21.000000000 -0800
> @@ -275,6 +275,11 @@ static int check_perm(struct inode * ino
> if (!ops)
> goto Eaccess;
>
> + /* Is the file is open for append? Sorry, we don't do that. */
> + if (file->f_flags & O_APPEND) {
> + goto Einval;
> + }
> +
Could you drop the braces? Coding style thing.
thx,
josh
^ permalink raw reply [flat|nested] 3+ messages in thread* Re: [PATCH 1/2] Disallow appends to sysfs files
2005-01-25 22:46 ` Josh Boyer
@ 2005-01-25 22:50 ` Mitch Williams
0 siblings, 0 replies; 3+ messages in thread
From: Mitch Williams @ 2005-01-25 22:50 UTC (permalink / raw)
To: Josh Boyer; +Cc: Williams, Mitch A, linux-kernel, greg
On Tue, 25 Jan 2005, Josh Boyer wrote:
>
> Could you drop the braces? Coding style thing.
>
Yeah, I'll drop and resubmit. I've got so many different things going on
with these patches, I'm getting confused. I know Greg asked for this same
change a while back but it got lost.
Resubmittal will commence in a few minutes.
-Mitch
^ permalink raw reply [flat|nested] 3+ messages in thread
end of thread, other threads:[~2005-01-25 22:53 UTC | newest]
Thread overview: 3+ messages (download: mbox.gz / follow: Atom feed)
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2005-01-25 22:38 [PATCH 1/2] Disallow appends to sysfs files Mitch Williams
2005-01-25 22:46 ` Josh Boyer
2005-01-25 22:50 ` Mitch Williams
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