linux-kernel - [GIT PULL] gfs2 revert for 6.19-rc6

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Message-ID: <20260113135123.282418-1-agruenba@redhat.com>
Date: Tue, 13 Jan 2026 14:51:22 +0100
From: Andreas Gruenbacher <agruenba@...hat.com>
To: Linus Torvalds <torvalds@...ux-foundation.org>
Cc: Andreas Gruenbacher <agruenba@...hat.com>,
	gfs2@...ts.linux.dev,
	linux-kernel@...r.kernel.org,
	stable@...r.kernel.org
Subject: [GIT PULL] gfs2 revert for 6.19-rc6

Dear Linus,

please consider pulling the following gfs2 revert for 6.19-rc6.

I was originally assuming that there must be a bug in gfs2 because gfs2 chains
bios in the opposite direction of what bio_chain_and_submit() expects.  It
turns out that the bio chains are set up in "reverse direction" intentionally
so that the first bio's bi_end_io callback is invoked rather than the last
bio's callback.

We want the first bio's callback invoked for the following reason: The initial
bio starts page aligned and covers one or more pages.  When it terminates at a
non-page-aligned offset, subsequent bios are added to handle the remaining
portion of the final page.  Upon completion of the bio chain, all affected
pages need to be be marked as read, and only the first bio references all of
these pages.

Thanks,
Andreas

The following changes since commit 8f0b4cce4481fb22653697cced8d0d04027cb1e8:

  Linux 6.19-rc1 (2025-12-14 16:05:07 +1200)

are available in the Git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2.git tags/gfs2-for-6.19-rc6

for you to fetch changes up to 469d71512d135907bf5ea0972dfab8c420f57848:

  Revert "gfs2: Fix use of bio_chain" (2026-01-12 14:58:32 +0100)

----------------------------------------------------------------
gfs2 revert

- Revert bad commit "gfs2: Fix use of bio_chain"

----------------------------------------------------------------
Andreas Gruenbacher (1):
      Revert "gfs2: Fix use of bio_chain"

 fs/gfs2/lops.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)