Re: [PATCH v3 v3 0/2] add blocks_allocated to mb_stats and clear mb_stats
From: liubaolin
Date: Wed Apr 22 2026 - 06:02:43 EST
在 2026/4/22 9:50, Baolin Liu 写道:
The series contains two patches:Dear All,
- add blocks_allocated to /proc/fs/ext4/<dev>/mb_stats
- allow writing 0 to /proc/fs/ext4/<dev>/mb_stats to clear the current
mballoc statistics
Changes since v2:
- Add mb_stats documentation to patch 2
- Add Reviewed-by tags
Baolin Liu (2):
ext4: add blocks_allocated to mb_stats output
ext4: allow clearing mballoc stats through mb_stats
Documentation/admin-guide/ext4.rst | 5 ++++
Documentation/filesystems/proc.rst | 3 +++
fs/ext4/ext4.h | 1 +
fs/ext4/mballoc.c | 31 +++++++++++++++++++++++
fs/ext4/sysfs.c | 40 ++++++++++++++++++++++++++++--
5 files changed, 78 insertions(+), 2 deletions(-)
This commit adds the description of the ext4 proc parameter mb_stats to the corresponding documentation.
I noticed that the documentation also lacks descriptions for the es_shrinker_info, fc_info, mb_structs_summary, and options parameters.
However, these parameters are irrelevant to the work done in this series of patches.
I will commit a separate patch later to explain the other parameters.
This time, I only explain mb_stats.
Thanks,
Baolin