Re: [PATCH v2 2/8] pipe: move limit checking logic into pipe_set_size()

From: Vegard Nossum
Date: Thu Sep 29 2016 - 07:27:11 EST


On 08/29/2016 02:21 AM, Michael Kerrisk (man-pages) wrote:
This is a preparatory patch for following work. Move the F_SETPIPE_SZ
limit-checking logic from pipe_fcntl() into pipe_set_size(). This
simplifies the code a little, and allows for reworking required in
a later patch that fixes the limit checking in pipe_set_size()

+ if ((too_many_pipe_buffers_hard(pipe->user) ||
+ too_many_pipe_buffers_soft(pipe->user)) &&
+ !capable(CAP_SYS_RESOURCE) && !capable(CAP_SYS_ADMIN))
+ return -EPERM;

Some might say the indentation is off here. Not sure why checkpatch
didn't care.

Otherwise looks fine to me.


Vegard