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| author | James Morris <jmorris@namei.org> | 2006-06-23 11:03:58 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-06-23 16:42:53 +0200 |
| commit | 03e68060636e05989ea94bcb671ab633948f328c (patch) | |
| tree | aee5e7b55f31998536dd3a4f54f38caeee6105d6 /fs/ioprio.c | |
| parent | [PATCH] move_pages: fix 32 -> 64 bit compat function (diff) | |
| download | linux-03e68060636e05989ea94bcb671ab633948f328c.tar.xz linux-03e68060636e05989ea94bcb671ab633948f328c.zip | |
[PATCH] lsm: add task_setioprio hook
Implement an LSM hook for setting a task's IO priority, similar to the hook
for setting a tasks's nice value.
A previous version of this LSM hook was included in an older version of
multiadm by Jan Engelhardt, although I don't recall it being submitted
upstream.
Also included is the corresponding SELinux hook, which re-uses the setsched
permission in the proccess class.
Signed-off-by: James Morris <jmorris@namei.org>
Acked-by: Stephen Smalley <sds@tycho.nsa.gov>
Cc: Jan Engelhardt <jengelh@linux01.gwdg.de>
Cc: Chris Wright <chrisw@sous-sol.org>
Cc: Jens Axboe <axboe@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'fs/ioprio.c')
| -rw-r--r-- | fs/ioprio.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/fs/ioprio.c b/fs/ioprio.c index ca77008146c0..7fa76ed53c10 100644 --- a/fs/ioprio.c +++ b/fs/ioprio.c @@ -24,15 +24,21 @@ #include <linux/blkdev.h> #include <linux/capability.h> #include <linux/syscalls.h> +#include <linux/security.h> static int set_task_ioprio(struct task_struct *task, int ioprio) { + int err; struct io_context *ioc; if (task->uid != current->euid && task->uid != current->uid && !capable(CAP_SYS_NICE)) return -EPERM; + err = security_task_setioprio(task, ioprio); + if (err) + return err; + task_lock(task); task->ioprio = ioprio; |