[lkml]   [2021]   [Apr]   [29]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
SubjectRe: [PATCH v2] proc: Use seq_read_iter for /proc/*/maps
On Thu, Apr 29, 2021 at 12:05:08PM +0200, Arkadiusz Kozdra (Arusekk) wrote:
> Since seq_read_iter looks mature enough to be used for /proc/<pid>/maps,
> re-allow applications to perform zero-copy data forwarding from it.
> Some executable-inspecting tools rely on patching entry point
> instructions with minimal machine code that uses sendfile to read
> /proc/self/maps to stdout. The sendfile call allows them to do it
> faster and without excessive allocations.

What programs do that today? You might want to list them here.

> This is inspired by the series by Cristoph Hellwig (linked).
> Changes since v1:
> only change proc_pid_maps_operations

This should go below the --- line, like the documentation states.


greg k-h

 \ /
  Last update: 2021-04-29 12:09    [W:0.142 / U:0.300 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site