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freebsd-skq/sys/vm
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Alan Cox d9347bca9a Correct a non-fatal error in vm_pageout_worker(). vm_pageout_worker() 
should not assume that vm_pages_needed will remain set while it sleeps.
Other threads can clear vm_pages_needed by performing a sufficient
number of vm_page_free() calls, e.g., process termination.  The effect
of this error was that vm_pageout_worker() would free and/or launder
pages when, in fact, there was no shortage of free pages.

Rewrite a nearby comment to describe all of the possible cases and not
just the most common case.  The problem being that the comment made
the most common case seem like the only case.

Reviewed by:	kib
MFC after:	1 week
Sponsored by:	EMC / Isilon Storage Division
2015-09-20 19:20:03 +00:00
..
_vm_radix.h
default_pager.c Place VM objects on the object list when created and never remove them. 2015-05-08 19:43:37 +00:00
device_pager.c Place VM objects on the object list when created and never remove them. 2015-05-08 19:43:37 +00:00
memguard.c Add comments about CTLFLAG_RDTUN vs. TUNABLE_INT_FETCH. 2015-03-26 05:20:18 +00:00
memguard.h
phys_pager.c Place VM objects on the object list when created and never remove them. 2015-05-08 19:43:37 +00:00
pmap.h Properly sort the function declarations added in r286296 2015-08-05 10:48:32 +00:00
redzone.c Pull in r267961 and r267973 again. Fix for issues reported will follow. 2014-06-28 03:56:17 +00:00
redzone.h
sg_pager.c Place VM objects on the object list when created and never remove them. 2015-05-08 19:43:37 +00:00
swap_pager.c The swap pager is compatible with direct dispatch. It does its own 2015-09-08 17:47:56 +00:00
swap_pager.h
uma_core.c Don't trash memory from UMA_ZONE_NOFREE zones. 2015-09-02 23:09:01 +00:00
uma_dbg.c If INVARIANTS is specified, add ctor/dtor to junk memory if they are 2015-06-25 20:44:46 +00:00
uma_dbg.h
uma_int.h Revert r281451. It causes a panic/hang early in boot for a number of 2015-04-24 17:03:53 +00:00
uma.h The vmem callback to reclaim kmem arena address space on low or 2015-05-09 20:08:36 +00:00
vm_domain.c Add an initial NUMA affinity/policy configuration for threads and processes. 2015-07-11 15:21:37 +00:00
vm_domain.h Add an initial NUMA affinity/policy configuration for threads and processes. 2015-07-11 15:21:37 +00:00
vm_extern.h Add a new file operations hook for mmap operations. File type-specific 2015-06-04 19:41:15 +00:00
vm_fault.c Refinements to r281079's sequential access optimization: Prefetched pages, 2015-08-03 20:30:27 +00:00
vm_glue.c Make kstack_pages a tunable on arm, x86, and powepc. On i386, the 2015-08-10 17:18:21 +00:00
vm_init.c Pull in r267961 and r267973 again. Fix for issues reported will follow. 2014-06-28 03:56:17 +00:00
vm_kern.c Correct a type error in kmem_unback(). Previously, kmem_unback() did not 2015-06-10 05:17:14 +00:00
vm_kern.h
vm_map.c Remove a check which caused spurious SIGSEGV on usermode access to the 2015-09-09 06:19:33 +00:00
vm_map.h Do not pretend that vm_fault(9) supports unwiring the address. Rename 2015-07-30 18:28:34 +00:00
vm_meter.c Remove the v_cache_min and v_cache_max sysctls. They are unused and have 2015-09-11 03:00:20 +00:00
vm_mmap.c Add a local variable initialization needed in the OBJT_DEFAULT case. 2015-07-05 22:26:19 +00:00
vm_object.c Revert r173708's modifications to vm_object_page_remove(). 2015-07-25 18:29:06 +00:00
vm_object.h Revert r173708's modifications to vm_object_page_remove(). 2015-07-25 18:29:06 +00:00
vm_page.c Eliminate (many) unnecessary calls to pmap_remove_all(). Pages from objects 2015-09-17 22:28:38 +00:00
vm_page.h The intention of r254304 was to scan the active queue continuously. 2015-07-08 17:45:59 +00:00
vm_pageout.c Correct a non-fatal error in vm_pageout_worker(). vm_pageout_worker() 2015-09-20 19:20:03 +00:00
vm_pageout.h
vm_pager.c - Make 'struct buf *buf' private to vfs_bio.c. Having a global variable 2015-07-29 02:26:57 +00:00
vm_pager.h o Un-inline vm_pager_get_pages(), vm_pager_get_pages_async(). 2015-06-17 22:44:27 +00:00
vm_param.h Remove the v_cache_min and v_cache_max sysctls. They are unused and have 2015-09-11 03:00:20 +00:00
vm_phys.c Add an initial NUMA affinity/policy configuration for threads and processes. 2015-07-11 15:21:37 +00:00
vm_phys.h Add an initial NUMA affinity/policy configuration for threads and processes. 2015-07-11 15:21:37 +00:00
vm_radix.c Pull in r267961 and r267973 again. Fix for issues reported will follow. 2014-06-28 03:56:17 +00:00
vm_radix.h Eliminate a redundant parameter to vm_radix_replace(). 2013-12-08 20:07:02 +00:00
vm_reserv.c Introduce a sysctl for reporting the number of fully populated reservations. 2015-08-06 21:27:50 +00:00
vm_reserv.h
vm_unix.c Implement lockless resource limits. 2015-06-10 10:48:12 +00:00
vm_zeroidle.c Pull in r267961 and r267973 again. Fix for issues reported will follow. 2014-06-28 03:56:17 +00:00
vm.h
vnode_pager.c Refactor unmapped buffer address handling. 2015-07-23 19:13:41 +00:00
vnode_pager.h Merge from projects/sendfile: 2014-11-23 12:01:52 +00:00