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(parent: 95e9be7) | 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)
commit1166d38b07688ae518dfc921a94d220b8fbeae6a
tree1dfb123d7279ddfcbaa4a3a11df52cf51b0a0402tree | snapshot
parent95e9be78bb2ee5b2e36a98e050774d695b28adb8commit | 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
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