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| author | Adam Manzanares | 2018-05-22 19:52:17 +0200 |
|---|---|---|
| committer | Al Viro | 2018-05-31 16:50:54 +0200 |
| commit | aa43457799f715d76cb77342baab0615877e2b8a (patch) | |
| tree | df9115b36ef602d0550e9c2626b5c53a705425ac /include/linux/ioprio.h | |
| parent | aio: sanitize the limit checking in io_submit(2) (diff) | |
| download | kernel-qcow2-linux-aa43457799f715d76cb77342baab0615877e2b8a.tar.gz kernel-qcow2-linux-aa43457799f715d76cb77342baab0615877e2b8a.tar.xz kernel-qcow2-linux-aa43457799f715d76cb77342baab0615877e2b8a.zip | |
block: add ioprio_check_cap function
Aio per command iopriority support introduces a second interface between
userland and the kernel capable of passing iopriority. The aio interface also
needs the ability to verify that the submitting context has sufficient
privileges to submit IOPRIO_RT commands. This patch creates the
ioprio_check_cap function to be used by the ioprio_set system call and also by
the aio interface.
Signed-off-by: Adam Manzanares <adam.manzanares@wdc.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Jeff Moyer <jmoyer@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'include/linux/ioprio.h')
| -rw-r--r-- | include/linux/ioprio.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/ioprio.h b/include/linux/ioprio.h index 627efac73e6d..4a28cec49ec3 100644 --- a/include/linux/ioprio.h +++ b/include/linux/ioprio.h @@ -77,4 +77,6 @@ extern int ioprio_best(unsigned short aprio, unsigned short bprio); extern int set_task_ioprio(struct task_struct *task, int ioprio); +extern int ioprio_check_cap(int ioprio); + #endif |