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b5d239cb97
freebsd-nq/sys/vm
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Mark Johnston b5d239cb97 Wire pages in vm_page_grab() when appropriate. 
uiomove_object_page() and exec_map_first_page() would previously wire a
page after having grabbed it.  Ask vm_page_grab() to perform the wiring
instead: this removes some redundant code, and is cheaper in the case
where the requested page is not resident since the page allocator can be
asked to initialize the page as wired, whereas a separate vm_page_wire()
call requires the page lock.

In vm_imgact_hold_page(), use vm_page_unwire_noq() instead of
vm_page_unwire(PQ_NONE).  The latter ensures that the page is dequeued
before returning, but this is unnecessary since vm_page_free() will
trigger a batched dequeue of the page.

Reviewed by:	alc, kib
Tested by:	pho (part of a larger patch)
MFC after:	1 week
Sponsored by:	Netflix
Differential Revision:	https://reviews.freebsd.org/D21440
2019-08-28 16:08:06 +00:00
..
_vm_radix.h sys: general adoption of SPDX licensing ID tags. 2017-11-27 15:23:17 +00:00
default_pager.c SPDX: wrong license. 2017-11-30 15:45:42 +00:00
device_pager.c Add a return value to vm_page_remove(). 2019-06-26 17:37:51 +00:00
memguard.c Add a vm_page_wired() predicate. 2019-06-02 01:00:17 +00:00
memguard.h sys: general adoption of SPDX licensing ID tags. 2017-11-27 15:23:17 +00:00
phys_pager.c sys: general adoption of SPDX licensing ID tags. 2017-11-27 15:23:17 +00:00
pmap.h correct pmap_ts_referenced return type 2019-07-03 19:59:56 +00:00
redzone.c sys: general adoption of SPDX licensing ID tags. 2017-11-27 15:23:17 +00:00
redzone.h sys: general adoption of SPDX licensing ID tags. 2017-11-27 15:23:17 +00:00
sg_pager.c Change the vm_ooffset_t type to unsigned. 2018-12-02 13:16:46 +00:00
swap_pager.c Use an atomic reference count for paging in progress so that callers do not 2019-08-19 23:09:38 +00:00
swap_pager.h sys: further adoption of SPDX licensing ID tags. 2017-11-20 19:43:44 +00:00
uma_core.c Handle UMA_ANYDOMAIN in kstack_import(). 2019-08-25 21:14:46 +00:00
uma_dbg.c Fix compilation failures on different arches that have vm_machdep.c not 2019-01-15 19:33:47 +00:00
uma_dbg.h sys: general adoption of SPDX licensing ID tags. 2017-11-27 15:23:17 +00:00
uma_int.h Add two new kernel options to control memory locality on NUMA hardware. 2019-08-06 21:50:34 +00:00
uma.h Handle UMA_ANYDOMAIN in kstack_import(). 2019-08-25 21:14:46 +00:00
vm_domainset.c Add a !NUMA definition for vm_domainset_iter_policy_ref_init(). 2018-10-24 17:09:20 +00:00
vm_domainset.h Refactor domainset iterators for use by malloc(9) and UMA. 2018-10-23 16:35:58 +00:00
vm_extern.h Add malloc_domainset(9) and _domainset variants to other allocator KPIs. 2018-10-30 18:26:34 +00:00
vm_fault.c Fix OOM handling of some corner cases. 2019-08-16 09:43:49 +00:00
vm_glue.c Wire pages in vm_page_grab() when appropriate. 2019-08-28 16:08:06 +00:00
vm_init.c Do not reserve KVA for paging bufs in vm_ksubmap_init(), since now 2019-01-16 20:14:16 +00:00
vm_kern.c Unconditionally enable debug.vm_lowmem. 2019-08-21 16:01:17 +00:00
vm_kern.h Do not reserve KVA for paging bufs in vm_ksubmap_init(), since now 2019-01-16 20:14:16 +00:00
vm_map.c vm_map_simplify_entry considers merging an entry with its two 2019-08-25 07:06:51 +00:00
vm_map.h vm_map_simplify_entry considers merging an entry with its two 2019-08-25 07:06:51 +00:00
vm_meter.c Provide separate accounting for user-wired pages. 2019-05-13 16:38:48 +00:00
vm_mmap.c Control implicit PROT_MAX() using procctl(2) and the FreeBSD note 2019-07-02 19:07:17 +00:00
vm_object.c Move OBJT_VNODE specific code from vm_object_terminate() to 2019-08-25 13:26:06 +00:00
vm_object.h Use an atomic reference count for paging in progress so that callers do not 2019-08-19 23:09:38 +00:00
vm_page.c Fix a few nits in vm_pqbatch_process_page(). 2019-08-26 20:20:10 +00:00
vm_page.h Make vm_pqbatch_submit_page() externally visible. 2019-08-23 19:49:29 +00:00
vm_pageout.c Fix OOM handling of some corner cases. 2019-08-16 09:43:49 +00:00
vm_pageout.h Fix OOM handling of some corner cases. 2019-08-16 09:43:49 +00:00
vm_pagequeue.h Simplify vm_page_dequeue() and fix an assertion. 2019-08-21 16:11:12 +00:00
vm_pager.c Do not reserve KVA for paging bufs in vm_ksubmap_init(), since now 2019-01-16 20:14:16 +00:00
vm_pager.h Permit vm_pager_has_page() to run with a shared lock. Introduce 2019-08-19 22:25:28 +00:00
vm_param.h Move phys_avail definition into MI code. It is consumed in the MI layer and 2019-08-16 00:45:14 +00:00
vm_phys.c Remove unnecessary debugging from r351181 that caused powerpc build to fail. 2019-08-18 08:07:31 +00:00
vm_phys.h Encapsulate phys_avail manipulation in a set of simple routines. Add a 2019-08-18 07:06:31 +00:00
vm_radix.c vm: stop passing M_ZERO when allocating radix nodes 2018-06-24 13:08:05 +00:00
vm_radix.h sys: general adoption of SPDX licensing ID tags. 2017-11-27 15:23:17 +00:00
vm_reserv.c Allocate amd64's page array using pages and page directory pages from the 2019-08-18 23:07:56 +00:00
vm_reserv.h Allocate amd64's page array using pages and page directory pages from the 2019-08-18 23:07:56 +00:00
vm_swapout_dummy.c SPDX: Consider code from Carnegie-Mellon University. 2017-11-30 15:48:35 +00:00
vm_swapout.c Make vm_pqbatch_submit_page() externally visible. 2019-08-23 19:49:29 +00:00
vm_unix.c Provide separate accounting for user-wired pages. 2019-05-13 16:38:48 +00:00
vm.h Move vm_ndomains to vm.h where it can be used with a single header include 2018-03-27 03:27:02 +00:00
vnode_pager.c Move OBJT_VNODE specific code from vm_object_terminate() to 2019-08-25 13:26:06 +00:00
vnode_pager.h sys: further adoption of SPDX licensing ID tags. 2017-11-20 19:43:44 +00:00