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authorChristoph Hellwig <hch@lst.de>2017-06-03 09:37:57 +0200
committerJens Axboe <axboe@fb.com>2017-06-09 09:27:32 -0600
commit9966afaf91b37e8c3d106379eeae0afa91c68aa8 (patch)
treea5d06e2c647e3e74c2238f20270512e7bdd50ec6 /sound/soc
parentf729b66fca43d850d564b264c2033980c00a14b0 (diff)
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dm: fix REQ_RAHEAD handling
A few (but not all) dm targets use a special EWOULDBLOCK error code for failing REQ_RAHEAD requests that fail due to a lack of available resources. But no one else knows about this magic code, and lower level drivers also don't generate it when failing read-ahead requests for similar reasons. So remove this special casing and ignore all additional error handling for REQ_RAHEAD - if this was a real underlying error we'd get a normal read once the real read comes in. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Bart Van Assche <Bart.VanAssche@sandisk.com> Signed-off-by: Mike Snitzer <snitzer@redhat.com> Signed-off-by: Jens Axboe <axboe@fb.com>
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