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Commit e7a121e3 authored by Matthew Wilcox's avatar Matthew Wilcox Committed by Greg Kroah-Hartman
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dax: Avoid losing wakeup in dax_lock_mapping_entry



commit 25bbe21bf427a81b8e3ccd480ea0e1d940256156 upstream.

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

Fixes: c2a7d2a1 ("filesystem-dax: Introduce dax_lock_mapping_entry()")
Cc: stable@vger.kernel.org
Signed-off-by: default avatarMatthew Wilcox <willy@infradead.org>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 9dec3855
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