jbd2: wake up journal waiters in FIFO order, not LIFO

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commit 34fc8768ec upstream.

LIFO wakeup order is unfair and sometimes leads to a journal
user not being able to get a journal handle for hundreds of
transactions in a row.

FIFO wakeup can make things more fair.

Cc: stable@kernel.org
Signed-off-by: Alexey Lyashkov <alexey.lyashkov@gmail.com>
Reviewed-by: Ritesh Harjani (IBM) <ritesh.list@gmail.com>
Link: https://lore.kernel.org/r/20220907165959.1137482-1-alexey.lyashkov@gmail.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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This commit is contained in:

Andrew Perepechko 2022-09-07 19:59:59 +03:00 • committed by Greg Kroah-Hartman

parent 7434626c5e

commit d87fe290a5

2 changed files with 4 additions and 4 deletions

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fs/jbd2/commit.c

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6

fs/jbd2/transaction.c

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