linux-ext4 - [PATCH 0/2] Some more misc fsmap fixes

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Message-ID: <cover.1757058211.git.ojaswin@linux.ibm.com>
Date: Fri,  5 Sep 2025 13:44:45 +0530
From: Ojaswin Mujoo <ojaswin@...ux.ibm.com>
To: linux-ext4@...r.kernel.org, "Theodore Ts'o" <tytso@....edu>
Cc: Ritesh Harjani <ritesh.list@...il.com>, Zhang Yi <yi.zhang@...wei.com>,
        linux-kernel@...r.kernel.org, "Darrick J . Wong" <djwong@...nel.org>
Subject: [PATCH 0/2] Some more misc fsmap fixes

These 2 patches mostly fixup a couple edge case inconsistent behavior
we were seeing in fsmap. Further, convert fsmap path to use block size
units wherever possible to avoid issues due to block to cluster to block
conversions like [1].

[1] https://lore.kernel.org/linux-ext4/e7472c8535c9c5ec10f425f495366864ea12c9da.1754377641.git.ojaswin@linux.ibm.com/

Tested with some custom edge cases (which I'll see how to consistently
convert to xfstests) as well as generic/365 on 4k, 64k and bigalloc

Ojaswin Mujoo (2):
  ext4: Correctly handle queries for metadata mappings
  fsmap: use blocksize units instead of cluster units

 fs/ext4/fsmap.c   | 56 +++++++++++++++++++++++++++--------------------
 fs/ext4/mballoc.c | 25 ++++++++++++++-------
 2 files changed, 49 insertions(+), 32 deletions(-)

-- 
2.49.0