lkml.org 
[lkml]   [2022]   [Jul]   [11]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
Subject[PATCH v2 0/4] proc: improve root readdir latency with many threads
Date
Hi all,

Here's v2 of the /proc readdir optimization patches. See v1 for the full
introductary cover letter.

The refactoring in v2 adds a bit more to the idr code, but it remains
trivial with respect to eventual xarray (tag -> mark) conversion. On
that topic, I'm still looking for some feedback in the v1 thread [1] on
the prospective approach...

Brian

[1] https://lore.kernel.org/linux-fsdevel/YrykXim1t71TgdYg@bfoster/

v2:
- Clean up idr helpers to be more generic.
- Use ->idr_base properly.
- Lift tgid iteration helper into pid.c to abstract tag logic from
users.
v1: https://lore.kernel.org/linux-fsdevel/20220614180949.102914-1-bfoster@redhat.com/

Brian Foster (4):
radix-tree: propagate all tags in idr tree
idr: support optional id tagging
pid: tag pids associated with group leader tasks
procfs: use efficient tgid pid search on root readdir

fs/proc/base.c | 17 +----------------
include/linux/idr.h | 26 ++++++++++++++++++++++++++
include/linux/pid.h | 3 ++-
kernel/fork.c | 2 +-
kernel/pid.c | 40 +++++++++++++++++++++++++++++++++++++++-
lib/radix-tree.c | 26 +++++++++++++++-----------
6 files changed, 84 insertions(+), 30 deletions(-)

--
2.35.3

\
 
 \ /
  Last update: 2022-07-11 15:53    [W:0.040 / U:0.068 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site