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Shutdown wasn't cancelling/waiting on journal_write_work()
Signed-off-by: Kent Overstreet <kmo@daterainc.com>
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Signed-off-by: Kent Overstreet <kmo@daterainc.com>
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Now, the on disk data structures are in a header that can be exported to
userspace - and having them all centralized is nice too.
Signed-off-by: Kent Overstreet <kmo@daterainc.com>
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Eventual goal is for struct btree_op to contain only what is necessary
for traversing the btree.
Signed-off-by: Kent Overstreet <kmo@daterainc.com>
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Making things less asynchronous that don't need to be - bch_journal()
only has to block when the journal or journal entry is full, which is
emphatically not a fast path. So make it a normal function that just
returns when it finishes, to make the code and control flow easier to
follow.
Signed-off-by: Kent Overstreet <kmo@daterainc.com>
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Does writethrough and writeback caching, handles unclean shutdown, and
has a bunch of other nifty features motivated by real world usage.
See the wiki at http://bcache.evilpiepirate.org for more.
Signed-off-by: Kent Overstreet <koverstreet@google.com>
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