bcachefs: Be more conservation about journal pre-reservations

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- Try to always keep 1/8th of the journal free, on top of
   pre-reservations
 - Move the check for whether the journal is stuck to
   bch2_journal_space_available, and make it only fire when there aren't
   any journal writes in flight (that might free up space by updating
   last_seq)

Signed-off-by: Kent Overstreet <kent.overstreet@gmail.com>
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>

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Kent Overstreet 2020-12-05 16:25:05 -05:00 • committed by Kent Overstreet

parent adbcada43f

commit 5d32c5bb07

5 changed files with 40 additions and 27 deletions

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25

fs/bcachefs/journal.c

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3

fs/bcachefs/journal.h

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3

fs/bcachefs/journal_io.c

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35

fs/bcachefs/journal_reclaim.c

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1

fs/bcachefs/journal_types.h

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