erofs: delimit inode_share cache key components

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Previously, inode_share keys were encoded as follows:

  fingerprint || domain_id

It would be better to have a separator between the fingerprint and domain
ID so that the fingerprint won't be parsed as part of a domain ID.

Change the key encoding as follows:

  domain_id || '\0' || fingerprint

Since domain_id is a NUL-terminated string, this makes the in-memory key
indices unambiguous.

Signed-off-by: Chengyu Zhu <hudsonzhu@tencent.com>
Reviewed-by: Gao Xiang <xiang@kernel.org>
Fixes: e0bf7d1c07 ("erofs: support user-defined fingerprint name")
Signed-off-by: Gao Xiang <xiang@kernel.org>

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This commit is contained in:

Chengyu Zhu 2026-09-07 16:33:19 +08:00 • committed by Gao Xiang

parent 82e664cf12

commit 96bf9831fb

1 changed files with 5 additions and 4 deletions

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fs/erofs/xattr.c

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