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[PATCH v5 0/4] stat: better utilization of statx() on the backend
From: |
Jeff Layton |
Subject: |
[PATCH v5 0/4] stat: better utilization of statx() on the backend |
Date: |
Mon, 13 May 2019 09:18:27 -0400 |
v5: style cleanups
fix warnings from make syntax-check
switch --cached= option to use XARGMATCH
fix --cached=default to set force_sync/dont_sync flags to false
v4: switched to single --cached= option instead of separate
--force-sync and --dont-sync options
v3: fix stat-hyphen and usage_vs_getopt test failures
v2: only do statx->stat conversion once
fixes for mask creation based on format
fix birthtime handling
use already-converted timespecs from struct stat for times
This is the fifth posting of this patchset. This one is mostly syntax
cleanups, but I've also reworked the new option to use XARGMATCH and
fixed a bug when --cached=default is set after other --cached= options.
"make check" and "make syntax-check" now pass.
This patchset changes the /bin/stat program to use the statx() system
call when available instead of stat()/lstat()/fstat(). This allows us to
avoid fetching attributes that we don't intend to display, which can be a
major performance improvement on some filesystems (particularlynetworked
or clustered ones).
This also adds a new command-line option that allows it to control
whether to synchronize with the backend server (again, mostly useful on
network filesystems).
Jeff Layton (4):
stat: drop statbuf argument from out_epoch_sec()
stat: use statx instead of stat if it's available
stat: only set STATX_* mask bits for things we want to print
stat: support statx DONT_SYNC and FORCE_SYNC flags
NEWS | 7 +
src/stat.c | 808 ++++++++++++++++++++++++++++++++++++++---------------
2 files changed, 584 insertions(+), 231 deletions(-)
--
2.21.0
- [PATCH v5 0/4] stat: better utilization of statx() on the backend,
Jeff Layton <=