freebsd-nq/sys/vm
Konstantin Belousov 0190c38b9d swapoff_one(): only check free pages count manually turning swap off
When swap is turned off due to system shutdown or reboot, ignore the
check.  Problem is that the check is not accurate by any means, free
page count can legitimately be low while system still able to page in
everything from the swap.  Then, we turn swap off if swapping on
real file or some non-standard geom provider, and typically panic
when system appears to actually need to unavailable page.

For syscall, it is better to be safe than sorry.

Reported and tested by:	peterj
Reviewed by:	markj
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
Differential revision:	https://reviews.freebsd.org/D33147
2021-11-29 18:38:02 +02:00
..
_vm_phys.h vm_phys: Try to clean up NUMA KPIs 2020-11-19 03:59:21 +00:00
_vm_radix.h
default_pager.c vm_object_kvme_type(): reimplement by embedding kvme_type into pagerops 2021-05-13 20:10:35 +03:00
device_pager.c vm_object_kvme_type(): reimplement by embedding kvme_type into pagerops 2021-05-13 20:10:35 +03:00
memguard.c vm: clean up empty lines in .c and .h files 2020-09-01 21:20:45 +00:00
memguard.h LinuxKPI: Implement ksize() function. 2020-08-29 19:26:31 +00:00
phys_pager.c vm_object_kvme_type(): reimplement by embedding kvme_type into pagerops 2021-05-13 20:10:35 +03:00
pmap.h Add pmap_enter(9) PMAP_ENTER_LARGEPAGE flag and implement it on amd64. 2020-09-09 21:50:24 +00:00
redzone.c redzone: Raise a compile error if KASAN is configured 2021-07-23 10:47:13 -04:00
redzone.h
sg_pager.c vm_object_kvme_type(): reimplement by embedding kvme_type into pagerops 2021-05-13 20:10:35 +03:00
swap_pager.c swapoff_one(): only check free pages count manually turning swap off 2021-11-29 18:38:02 +02:00
swap_pager.h forward declare struct thread 2021-10-11 12:59:39 -06:00
uma_core.c uma: Fix handling of reserves in zone_import() 2021-11-01 09:51:43 -04:00
uma_dbg.c
uma_dbg.h
uma_int.h Improve UMA cache reclamation. 2021-05-02 19:45:23 -04:00
uma.h Remove some remaining references to VM_ALLOC_NOOBJ 2021-10-19 21:22:56 -04:00
vm_domainset.c Add interruptible variant of vm_wait(9), vm_wait_intr(9). 2020-09-08 23:28:09 +00:00
vm_domainset.h Add interruptible variant of vm_wait(9), vm_wait_intr(9). 2020-09-08 23:28:09 +00:00
vm_dumpset.h minidump: Use the provided dump bitset 2021-11-19 15:05:52 -04:00
vm_extern.h Add vnode_pager_purge_range(9) KPI 2021-08-05 22:52:26 +08:00
vm_fault.c vm_fault: Factor out per-object operations into vm_fault_object() 2021-11-24 14:02:56 -05:00
vm_glue.c Fix a common typo in syctl descriptions 2021-11-03 20:49:24 +01:00
vm_init.c Make MAXPHYS tunable. Bump MAXPHYS to 1M. 2020-11-28 12:12:51 +00:00
vm_kern.c vm_page: Handle VM_ALLOC_NORECLAIM in the contiguous page allocator 2021-11-11 14:26:41 -05:00
vm_kern.h Remove the VM map zone. 2020-08-17 13:02:01 +00:00
vm_map.c setrlimit: Take stack gap into account. 2021-10-15 10:21:47 +02:00
vm_map.h setrlimit: Take stack gap into account. 2021-10-15 10:21:47 +02:00
vm_meter.c Use atomic loads/stores when updating td->td_state 2021-02-18 14:02:48 +00:00
vm_mmap.c ommap: fix signed len and pos arguments 2021-11-15 18:34:28 +00:00
vm_object.c vm: Add a mode to vm_object_page_remove() which skips invalid pages 2021-11-15 13:01:30 -05:00
vm_object.h vm: Add a mode to vm_object_page_remove() which skips invalid pages 2021-11-15 13:01:30 -05:00
vm_page.c vm_page: Consolidate page busy sleep mechanisms 2021-11-15 13:01:30 -05:00
vm_page.h vm_page: Remove vm_page_sbusy() and vm_page_xbusy() 2021-11-15 13:01:30 -05:00
vm_pageout.c Fix a few typos in source code comments 2021-08-14 09:06:09 +02:00
vm_pageout.h Add interruptible variant of vm_wait(9), vm_wait_intr(9). 2020-09-08 23:28:09 +00:00
vm_pagequeue.h vm_phys: Try to clean up NUMA KPIs 2020-11-19 03:59:21 +00:00
vm_pager.c vm_pager: Optimize an assertion 2021-11-15 13:01:30 -05:00
vm_pager.h vm: Add KPI to dynamically register pagers 2021-05-13 20:12:29 +03:00
vm_param.h
vm_phys.c minidump: De-duplicate is_dumpable() 2021-09-29 16:41:52 -03:00
vm_phys.h minidump: De-duplicate is_dumpable() 2021-09-29 16:41:52 -03:00
vm_radix.c vm: clean up empty lines in .c and .h files 2020-09-01 21:20:45 +00:00
vm_radix.h Use SMR to provide a safe unlocked lookup for vm_radix. 2020-02-19 19:58:31 +00:00
vm_reserv.c vm_reserv: Fix list locking in vm_reserv_reclaim_contig() 2021-03-11 10:35:35 -05:00
vm_reserv.h
vm_swapout_dummy.c
vm_swapout.c Make vmdaemon timeout configurable 2021-10-17 13:49:29 +01:00
vm_unix.c Prepare to handle non-trivial errors from vm_map_delete(). 2020-09-09 21:34:31 +00:00
vm.h tmpfs: dynamically register tmpfs pager 2021-05-13 20:13:34 +03:00
vnode_pager.c Add vnode_pager_purge_range(9) KPI 2021-08-05 22:52:26 +08:00
vnode_pager.h