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(parent: 29a951d) | patch
mm: don't play games with pinned pages in clear_page_refs
authorLinus Torvalds <torvalds@linux-foundation.org>
Sun, 10 Jan 2021 01:09:10 +0000 (17:09 -0800)
committerLinus Torvalds <torvalds@linux-foundation.org>
Sat, 16 Jan 2021 18:51:26 +0000 (10:51 -0800)
commit9348b73c2e1bfea74ccd4a44fb4ccc7276ab9623
tree1dfb123d7279ddfcbaa4a3a11df52cf51b0a0402tree | snapshot
parent29a951dfb3c3263c3a0f3bd9f7f2c2cfde4baedbcommit | diff
mm: don't play games with pinned pages in clear_page_refs

Turning a pinned page read-only breaks the pinning after COW.  Don't do it.

The whole "track page soft dirty" state doesn't work with pinned pages
anyway, since the page might be dirtied by the pinning entity without
ever being noticed in the page tables.

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
fs/proc/task_mmu.c diff | blob | history
Domain: System / Kernel;