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Conrad Meyer 6fee422ed5 vm_fault_hold: handle vm_page_rename failure 
On vm_page_rename failure, fix a missing object unlock and a double free of
a page.

First remove the old page, then rename into other page into first_object,
then free the old page.  This avoids the problem on rename failure.  This is
a little ugly but seems to be the most straightforward solution.

Tested with:
  $ sysctl debug.fail_point.uma_zalloc_arg="1%return"
  $ kyua test -k /usr/tests/sys/Kyuafile

Submitted by:	Ryan Libby <rlibby@gmail.com>
Reviewed by:	kib
Seen by:	alc
Sponsored by:	EMC / Isilon Storage Division
Differential Revision:	https://reviews.freebsd.org/D4326
2015-12-06 17:46:12 +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
Minor cleanup.
2015-11-29 11:37:25 +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
Mark swap_pager_putpages static at its definition. It was already
2015-10-05 21:29:17 +00:00
swap_pager.h
…
uma_core.c
Consistently enforce the restriction against calling malloc/free when in a
2015-11-19 14:04:53 +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
vm_fault_hold: handle vm_page_rename failure
2015-12-06 17:46:12 +00:00
vm_glue.c
Exploit r288122 to avoid pointlessly enqueueing a page that is about to be
2015-10-09 03:38:58 +00:00
vm_init.c
Parallelize the buffer cache and rewrite getnewbuf(). This results in a
2015-10-14 02:10:07 +00:00
vm_kern.c
Export various helper variables describing the layout and size of
2015-11-12 22:00:59 +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
Pull vm_object_scan_all_shadowed out of vm_object_backing_scan
2015-12-03 17:21:10 +00:00
vm_object.h
As a step towards the elimination of PG_CACHED pages, rework the handling
2015-09-30 23:06:29 +00:00
vm_page.c
Ensure that deactivated pages that are not expected to be reused are
2015-11-08 01:36:18 +00:00
vm_page.h
Rework the test which raises OOM condition. Right now, the code
2015-11-16 06:26:26 +00:00
vm_pageout.c
In vm_pageout_grow_cache(), do not re-try the inactive queue when
2015-11-27 19:43:36 +00:00
vm_pageout.h
Reduce the scope of a variable to the only file where it is used.
2015-10-03 19:27:52 +00:00
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
…
vm_reserv.c
Correct an error in vm_reserv_reclaim_contig(). In the highly unusual
2015-11-26 19:12:18 +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
Record proper commit message for r291157.
2015-11-22 09:50:13 +00:00
vnode_pager.h
Merge from projects/sendfile:
2014-11-23 12:01:52 +00:00