ext4: specify the free pointer offset for ext4_inode_cache

Browse source

Convert ext4_inode_cache to use the kmem_cache_args interface and
specify a free pointer offset.

Since ext4_inode_cache uses a constructor, the free pointer would be
placed after the object to prevent overwriting fields used by the
constructor.

However, some fields such as ->i_flags are not used by the constructor
and can safely be repurposed for the free pointer.

Specify the free pointer offset at i_flags to reduce the object size.

Signed-off-by: Harry Yoo <harry.yoo@oracle.com>
Link: https://patch.msgid.link/20260113061845.159790-4-harry.yoo@oracle.com
Signed-off-by: Vlastimil Babka <vbabka@suse.cz>

...

This commit is contained in:

Harry Yoo 2026-01-13 15:18:39 +09:00 • committed by Vlastimil Babka

parent a13b68d79d

commit 43d9bb4236

1 changed files with 13 additions and 6 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

19

fs/ext4/super.c

View file