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io_uring: allow SQPOLL with CAP_SYS_NICE privileges

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CAP_SYS_ADMIN is too restrictive for a lot of uses cases, allow
CAP_SYS_NICE based on the premise that such users are already allowed
to raise the priority of tasks.

Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Jens Axboe 2020-09-02 13:28:09 -06:00
parent 418baf2c28
commit ce59fc69b1
1 changed files with 1 additions and 1 deletions
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2
fs/io_uring.c
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@ -7783,7 +7783,7 @@ static int io_sq_offload_create(struct io_ring_ctx *ctx,
struct io_sq_data *sqd;
ret = -EPERM;
if (!capable(CAP_SYS_ADMIN))
if (!capable(CAP_SYS_ADMIN) && !capable(CAP_SYS_NICE))
goto err;
sqd = io_get_sq_data(p);