bcachefs: prepare journal buf put to handle pin put

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bcachefs freeze testing has uncovered some raciness between journal
entry open/close and pin list reference count management. The
details of the problem are described in a separate patch. In
preparation for the associated fix, refactor the journal buffer put
path a bit to allow it to eventually handle dropping the pin list
reference currently held by an open journal entry.

Retain the journal write dispatch helper since the closure code is
inlined and we don't want to increase the amount of inline code in
the transaction commit path, but rename the function to reflect
the purpose of final processing of the journal buffer.

Signed-off-by: Brian Foster <bfoster@redhat.com>
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>

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Brian Foster 2023-09-15 08:51:52 -04:00 • committed by Kent Overstreet

parent 92b63f5bf0

commit fc08031bb8

2 changed files with 18 additions and 6 deletions

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2

fs/bcachefs/journal.c

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22

fs/bcachefs/journal.h

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