f3f38e2580
This is in preparation for eliminating the use of the vm_page lock for protecting queue state operations. Introduce the vm_page_pqstate_commit_*() functions. These functions act as helpers around vm_page_astate_fcmpset() and are specialized for specific types of operations. vm_page_pqstate_commit() wraps these functions. Convert a number of routines to use these new helpers. Use vm_page_release_toq() in vm_page_unwire() and vm_page_release() to atomically release a wiring reference and release the page into a queue. This has the side effect that vm_page_unwire() will leave the page in the active queue if it is already present there. Convert the page queue scans to use the new helpers. Simplify vm_pageout_reinsert_inactive(), which requeues pages that were found to be busy during an inactive queue scan, to avoid duplicating the work of vm_pqbatch_process_page(). In particular, if PGA_REQUEUE or PGA_REQUEUE_HEAD is set, let that be handled during batch processing. Reviewed by: jeff Tested by: pho Sponsored by: Netflix, Intel Differential Revision: https://reviews.freebsd.org/D22770 Differential Revision: https://reviews.freebsd.org/D22771 Differential Revision: https://reviews.freebsd.org/D22772 Differential Revision: https://reviews.freebsd.org/D22773 Differential Revision: https://reviews.freebsd.org/D22776 |
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bin | ||
cddl | ||
contrib | ||
crypto | ||
etc | ||
gnu | ||
include | ||
kerberos5 | ||
lib | ||
libexec | ||
release | ||
rescue | ||
sbin | ||
secure | ||
share | ||
stand | ||
sys | ||
targets | ||
tests | ||
tools | ||
usr.bin | ||
usr.sbin | ||
.arcconfig | ||
.arclint | ||
.cirrus.yml | ||
.clang-format | ||
.gitattributes | ||
.gitignore | ||
COPYRIGHT | ||
LOCKS | ||
MAINTAINERS | ||
Makefile | ||
Makefile.inc1 | ||
Makefile.libcompat | ||
Makefile.sys.inc | ||
ObsoleteFiles.inc | ||
README | ||
README.md | ||
RELNOTES | ||
UPDATING |
FreeBSD Source:
This is the top level of the FreeBSD source directory. This file
was last revised on:
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FreeBSD is an operating system used to power modern servers, desktops, and embedded platforms. A large community has continually developed it for more than thirty years. Its advanced networking, security, and storage features have made FreeBSD the platform of choice for many of the busiest web sites and most pervasive embedded networking and storage devices.
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include System include files.
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