bcachefs: Assorted journal refactoring

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Improved the way we track various state by adding j->err_seq, which
records the first journal sequence number that encountered an error
being written, and j->last_empty_seq, which records the most recent
journal entry that was completely empty.

Also, use the low bits of the journal sequence number to index the
corresponding journal_buf.

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

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Kent Overstreet 2020-11-14 16:04:30 -05:00 • committed by Kent Overstreet

parent 1676a398d3

commit 158eecb88e

4 changed files with 67 additions and 68 deletions

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105

fs/bcachefs/journal.c

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2

fs/bcachefs/journal.h

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25

fs/bcachefs/journal_io.c

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3

fs/bcachefs/journal_types.h

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