gfs2: allow journal replay to hold sd_log_flush_lock

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Before this patch, journal replays could stomp on log flushes
and each other because both log flushes and journal replays used
the same sd_log_bio. Function gfs2_log_flush prevents other log
flushes from interfering by taking the sd_log_flush_lock rwsem
during the flush. However, it does not protect against journal
replays. This patch allows the journal replay to take the same
sd_log_flush_lock rwsem so use of the sd_log_bio is not stomped.

Signed-off-by: Bob Peterson <rpeterso@redhat.com>

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Bob Peterson 2020-02-17 14:15:05 -06:00

parent 019dd669bd

commit c9ebc4b737

1 changed files with 5 additions and 0 deletions

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fs/gfs2/recovery.c

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