linux-kernel - [GIT PULL] erofs fix for 5.12-rc3

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Date:   Sat, 13 Mar 2021 20:40:44 +0800
From:   Gao Xiang <hsiangkao@...hat.com>
To:     Linus Torvalds <torvalds@...ux-foundation.org>
Cc:     LKML <linux-kernel@...r.kernel.org>, linux-erofs@...ts.ozlabs.org,
        Chao Yu <yuchao0@...wei.com>, Martin DEVERA <devik@...labs.cz>
Subject: [GIT PULL] erofs fix for 5.12-rc3

Hi Linus,

Could you consider this pull request for 5.11-rc3?
All details about this new regression are as below.

All commits have been tested and have been in -next for days.
This merges cleanly with master.

Thanks,
Gao Xiang

The following changes since commit a38fd8748464831584a19438cbb3082b5a2dab15:

  Linux 5.12-rc2 (2021-03-05 17:33:41 -0800)

are available in the Git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/xiang/erofs.git tags/erofs-for-5.12-rc3

for you to fetch changes up to 9f377622a484de0818c49ee01e0ab4eedf6acd81:

  erofs: fix bio->bi_max_vecs behavior change (2021-03-08 10:43:32 +0800)

----------------------------------------------------------------
Change since last update:

Fix an urgent regression introduced by commit baa2c7c97153 ("block:
set .bi_max_vecs as actual allocated vector number"), which could
cause unexpected hung since linux 5.12-rc1.

Resolve it by avoiding using bio->bi_max_vecs completely.

----------------------------------------------------------------
Gao Xiang (1):
      erofs: fix bio->bi_max_vecs behavior change

 fs/erofs/data.c | 28 +++++++++++-----------------
 1 file changed, 11 insertions(+), 17 deletions(-)