]> git.baikalelectronics.ru Git - kernel.git/commit
projects / kernel.git / commit
? search:
summary | shortlog | log | commit | commitdiff | tree
(parent: d29d2dd) | patch
gup: Introduce FOLL_NOFAULT flag to disable page faults
authorAndreas Gruenbacher <agruenba@redhat.com>
Tue, 17 Aug 2021 20:52:08 +0000 (22:52 +0200)
committerAndreas Gruenbacher <agruenba@redhat.com>
Sun, 24 Oct 2021 13:26:05 +0000 (15:26 +0200)
commita476909d8bded410f4fe25072b730587f69bc05d
tree9a7f9a0bcf98aea2fe8f3c7dcf483c75ffd6f6eatree | snapshot
parentd29d2ddc9b12e3c39e761a5fa5f8b28da19dd3b1commit | diff
gup: Introduce FOLL_NOFAULT flag to disable page faults

Introduce a new FOLL_NOFAULT flag that causes get_user_pages to return
-EFAULT when it would otherwise trigger a page fault.  This is roughly
similar to FOLL_FAST_ONLY but available on all architectures, and less
fragile.

Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
include/linux/mm.h diff | blob | history
mm/gup.c diff | blob | history
Linux Kernel Source Tree.