diff options
| author | Dan Williams <[email protected]> | 2020-10-15 20:04:22 -0700 |
|---|---|---|
| committer | Linus Torvalds <[email protected]> | 2020-10-16 11:11:14 -0700 |
| commit | a455aa72f7c46b881721668b3ee810713adc7a5b (patch) | |
| tree | 3a6fee316c2afb8db49367e2741909666942470b /tools/perf/scripts/python/stackcollapse.py | |
| parent | 578a7155c5a1894a789d4ece181abf9d25dc6b0d (diff) | |
device-dax/kmem: fix resource release
The conversion to request_mem_region() is broken because it assumes that
the range is marked busy prior to release. However, due to the way that
the kmem driver manipulates the IORESOURCE_BUSY flag (clears it to let
{add,remove}_memory() handle busy) it requires a manual release_resource()
to perform cleanup.
Given that the actual 'struct resource *' needs to be recalled, not just
the range, add that tracking to the kmem driver-data.
Fixes: 0513bd5bb114 ("device-dax/kmem: replace release_resource() with release_mem_region()")
Reported-by: David Hildenbrand <[email protected]>
Signed-off-by: Dan Williams <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Reviewed-by: David Hildenbrand <[email protected]>
Cc: Vishal Verma <[email protected]>
Cc: Dave Hansen <[email protected]>
Cc: Pavel Tatashin <[email protected]>
Cc: Brice Goglin <[email protected]>
Cc: Dave Jiang <[email protected]>
Cc: Ira Weiny <[email protected]>
Cc: Jia He <[email protected]>
Cc: Joao Martins <[email protected]>
Cc: Jonathan Cameron <[email protected]>
Link: https://lkml.kernel.org/r/160272252925.3136502.17220638073995895400.stgit@dwillia2-desk3.amr.corp.intel.com
Signed-off-by: Linus Torvalds <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/stackcollapse.py')
0 files changed, 0 insertions, 0 deletions