[PATCH v9 0/1] kasan: Avoid sleepable page allocation from atomic context

[Alexander Gordeev <agordeev@linux.ibm.com>]

Hi All,

I dropped Harry Yoo's Reviewed-by from this version.

Chages since v8:
- fixed page_owner=on issue preventing bulk allocations on x86 

Chages since v7:
- drop "unnecessary free pages" optimization
- fix error path page leak

Chages since v6:
- do not unnecessary free pages across iterations

Chages since v5:
- full error message included into commit description

Chages since v4:
- unused pages leak is avoided

Chages since v3:
- pfn_to_virt() changed to page_to_virt() due to compile error

Chages since v2:
- page allocation moved out of the atomic context

Chages since v1:
- Fixes: and -stable tags added to the patch description

Thanks!

Alexander Gordeev (1):
  kasan: Avoid sleepable page allocation from atomic context

 mm/kasan/shadow.c | 92 +++++++++++++++++++++++++++++++++++++++--------
 1 file changed, 78 insertions(+), 14 deletions(-)

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2.45.2