dax: Avoid losing wakeup in dax_lock_mapping_entry

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commit 25bbe21bf4 upstream.

After calling get_unlocked_entry(), you have to call
put_unlocked_entry() to avoid subsequent waiters losing wakeups.

Fixes: c2a7d2a115 ("filesystem-dax: Introduce dax_lock_mapping_entry()")
Cc: stable@vger.kernel.org
Signed-off-by: Matthew Wilcox <willy@infradead.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Matthew Wilcox 2018-11-16 15:50:02 -05:00 • committed by Greg Kroah-Hartman

parent 9dec38554a

commit e7a121e34c

1 changed files with 6 additions and 1 deletions

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fs/dax.c

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