libnvdimm, btt: fix a missed NVDIMM_IO_ATOMIC case in the write path

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The IO context conversion for rw_bytes missed a case in the BTT write
path (btt_map_write) which should've been marked as atomic.

In reality this should not cause a problem, because map writes are to
small for nsio_rw_bytes to attempt error clearing, but it should be
fixed for posterity.

Add a might_sleep() in the non-atomic section of nsio_rw_bytes so that
things like the nfit unit tests, which don't actually sleep, can catch
bugs like this.

Cc: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Vishal Verma <vishal.l.verma@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>

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This commit is contained in:

Vishal Verma 2017-08-30 19:35:58 -06:00 • committed by Dan Williams

parent a15797f4be

commit 1db1f3cea1

2 changed files with 3 additions and 1 deletions

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3

drivers/nvdimm/btt.c

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1

drivers/nvdimm/claim.c

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