diff options
| author | Christoph Hellwig <hch@lst.de> | 2021-12-09 09:31:27 +0300 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2021-12-16 20:59:01 +0300 |
| commit | a411cd3cfdc5bbd1329d5b33dbf39e2b5213969d (patch) | |
| tree | 19551602102daac1d756a057a77a5ffc9d685574 /block/ioprio.c | |
| parent | 091abcb3efd71cb18e80c8f040d9e4a634d8906d (diff) | |
| download | linux-a411cd3cfdc5bbd1329d5b33dbf39e2b5213969d.tar.xz | |
block: move set_task_ioprio to blk-ioc.c
Keep set_task_ioprio with the other low-level code that accesses the
io_context structure.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Jan Kara <jack@suse.cz>
Link: https://lore.kernel.org/r/20211209063131.18537-8-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'block/ioprio.c')
| -rw-r--r-- | block/ioprio.c | 32 |
1 files changed, 0 insertions, 32 deletions
diff --git a/block/ioprio.c b/block/ioprio.c index 313c14a70bbd..e118f4bf2dc6 100644 --- a/block/ioprio.c +++ b/block/ioprio.c @@ -22,46 +22,14 @@ */ #include <linux/gfp.h> #include <linux/kernel.h> -#include <linux/export.h> #include <linux/ioprio.h> #include <linux/cred.h> #include <linux/blkdev.h> #include <linux/capability.h> -#include <linux/sched/user.h> -#include <linux/sched/task.h> #include <linux/syscalls.h> #include <linux/security.h> #include <linux/pid_namespace.h> -int set_task_ioprio(struct task_struct *task, int ioprio) -{ - int err; - struct io_context *ioc; - const struct cred *cred = current_cred(), *tcred; - - rcu_read_lock(); - tcred = __task_cred(task); - if (!uid_eq(tcred->uid, cred->euid) && - !uid_eq(tcred->uid, cred->uid) && !capable(CAP_SYS_NICE)) { - rcu_read_unlock(); - return -EPERM; - } - rcu_read_unlock(); - - err = security_task_setioprio(task, ioprio); - if (err) - return err; - - ioc = get_task_io_context(task, GFP_ATOMIC, NUMA_NO_NODE); - if (ioc) { - ioc->ioprio = ioprio; - put_io_context(ioc); - } - - return err; -} -EXPORT_SYMBOL_GPL(set_task_ioprio); - int ioprio_check_cap(int ioprio) { int class = IOPRIO_PRIO_CLASS(ioprio); |