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| author | Jan H. Schönherr <jschoenh@amazon.de> | 2018-01-19 16:26:33 -0800 |
|---|---|---|
| committer | Dan Williams <dan.j.williams@intel.com> | 2018-01-19 16:29:56 -0800 |
| commit | 77dd66a3c67c93ab401ccc15efff25578be281fd (patch) | |
| tree | 3787433794cb87a82998f80b7505da548a0c4649 /mm | |
| parent | 10a0cd6e4932b5078215b1ec2c896597eec0eff9 (diff) | |
| download | blackbird-op-linux-77dd66a3c67c93ab401ccc15efff25578be281fd.tar.gz blackbird-op-linux-77dd66a3c67c93ab401ccc15efff25578be281fd.zip | |
mm: Fix devm_memremap_pages() collision handling
If devm_memremap_pages() detects a collision while adding entries
to the radix-tree, we call pgmap_radix_release(). Unfortunately,
the function removes *all* entries for the range -- including the
entries that caused the collision in the first place.
Modify pgmap_radix_release() to take an additional argument to
indicate where to stop, so that only newly added entries are removed
from the tree.
Cc: <stable@vger.kernel.org>
Fixes: 9476df7d80df ("mm: introduce find_dev_pagemap()")
Signed-off-by: Jan H. Schönherr <jschoenh@amazon.de>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Diffstat (limited to 'mm')
0 files changed, 0 insertions, 0 deletions
