commit a6225b5b1ff1b3fe60b0e7ef98bc040a111d265f
Author: Matthew Dillon <[email protected]>
Date: Mon Nov 28 10:41:53 2016 -0800
kernel - Fix deadlock in vm_page_repurpose()
* vm_page_repurpose() was hard+soft busying the underlying VM page,
which can deadlock against putpages or other I/O.
* Only hard-busy the page, then add an SBUSY test to the failure case
(we don't want to repurpose a page undergoing I/O after all!).
Summary of changes:
sys/vm/vm_page.c | 20 ++++++++++++++++++--
1 file changed, 18 insertions(+), 2 deletions(-)
http://gitweb.dragonflybsd.org/dragonfly.git/commitdiff/a6225b5b1ff1b3fe60b0e7ef98bc040a111d265f
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DragonFly BSD source repository
