kib a114aae162 Provide mutual exclusion between zone allocation/destruction and ...

uma_reclaim().  Reclamation code must not see half-constructed or
destructed zones.  Do this by bracing uma_zcreate() and uma_zdestroy()
into a shared-locked sx, and take the sx exclusively in uma_reclaim().

Usually zones are not created/destroyed during the system operation,
but tmpfs mounts do cause zone operations and exposed the bug.

Another solution could be to only expose a new keg on uma_kegs list
after the corresponding zone is fully constructed, and similar
treatment for the destruction.  But it probably requires more risky
code rearrangement as well.

Reported and tested by:	pho
Discussed with:	avg
Sponsored by:	The FreeBSD Foundation
MFC after:	2 weeks

2014-11-30 20:20:55 +00:00

..

_vm_radix.h

On all the architectures, avoid to preallocate the physical memory

2013-08-09 11:28:55 +00:00

default_pager.c

Fix mis-spelling of bits and types names in the

2014-11-04 19:56:04 +00:00

device_pager.c

Initialize paddr to handle the case of zero size.

2014-03-12 16:38:55 +00:00

memguard.c

Fix multiple incorrect SYSCTL arguments in the kernel:

2014-10-21 07:31:21 +00:00

memguard.h

Replace kernel virtual address space allocation with vmem. This provides

2013-08-07 06:21:20 +00:00

phys_pager.c

The soft and hard busy mechanism rely on the vm object lock to work.

2013-08-09 11:11:11 +00:00

pmap.h

Change pmap_enter(9) interface to take flags parameter and superpage

2014-08-08 17:12:03 +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

Different consumers of the struct vm_page abuse pageq member to keep

2013-08-10 17:36:42 +00:00

swap_pager.c

\n at end of panicstr is redundant.

2014-11-23 18:32:21 +00:00

swap_pager.h

…

uma_core.c

Provide mutual exclusion between zone allocation/destruction and

2014-11-30 20:20:55 +00:00

uma_dbg.c

- Add a per-zone lock for zones without kegs.

2013-06-20 19:08:12 +00:00

uma_dbg.h

…

uma_int.h

Implement soft pressure on UMA cache bucket sizes.

2013-11-19 10:05:53 +00:00

uma.h

Create two public UMA_ZONE_PCPU zones: 64 bit sized and pointer sized.

2014-02-10 19:59:46 +00:00

vm_extern.h

Handle wiring failures in vm_map_wire() with the new functions

2014-08-02 16:10:24 +00:00

vm_fault.c

Make MAP_NOSYNC handling in the vm_fault() read-locked object path

2014-10-10 19:27:36 +00:00

vm_glue.c

Add kernel option KSTACK_USAGE_PROF to sample the stack depth on

2014-10-04 18:38:14 +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

Fix multiple incorrect SYSCTL arguments in the kernel:

2014-10-21 07:31:21 +00:00

vm_kern.h

- Add a statically allocated memguard arena since it is needed very early

2013-08-13 22:40:43 +00:00

vm_map.c

vm_map_pmap_enter() and pmap_enter_object() are currently not aware of

2014-09-23 18:54:23 +00:00

vm_map.h

Oops. vm_map_simplify_entry() is used by mac_proc_vm_revoke_recurse(), so

2014-09-08 02:25:01 +00:00

vm_meter.c

Rename global cnt to vm_cnt to avoid shadowing.

2014-03-22 10:26:09 +00:00

vm_mmap.c

Retire the unimplemented MAP_RENAME and MAP_NORESERVE flags to mmap(2).

2014-10-18 12:28:51 +00:00

vm_object.c

When unwiring a region of an address space, do not assume that the

2014-07-26 18:10:18 +00:00

vm_object.h

Update a stale comment.

2014-09-11 03:16:57 +00:00

vm_page.c

Enable the use of VM_PHYSSEG_SPARSE on amd64 and i386, making it the default

2014-11-15 23:40:44 +00:00

vm_page.h

Adapt vm_page_aflag_set(PGA_WRITEABLE) to the locking of

2014-08-09 05:00:34 +00:00

vm_pageout.c

Refactor ZFS ARC reclaim checks and limits

2014-10-03 20:34:55 +00:00

vm_pageout.h

…

vm_pager.c

Avoid an exclusive acquisition of the object lock on the expected execution

2014-09-14 18:07:55 +00:00

vm_pager.h

Merge from projects/sendfile:

2014-11-23 12:01:52 +00:00

vm_param.h

Rename global cnt to vm_cnt to avoid shadowing.

2014-03-22 10:26:09 +00:00

vm_phys.c

Enable the use of VM_PHYSSEG_SPARSE on amd64 and i386, making it the default

2014-11-15 23:40:44 +00:00

vm_phys.h

Enable the use of VM_PHYSSEG_SPARSE on amd64 and i386, making it the default

2014-11-15 23:40:44 +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

By the time that vm_reserv_init() runs, vm_phys_segs[] is initialized. Use

2014-11-22 17:46:30 +00:00

vm_reserv.h

…

vm_unix.c

Remove ia64.

2014-07-07 00:27:09 +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

rename scheduler->swapper and SI_SUB_RUN_SCHEDULER->SI_SUB_LAST

2013-07-24 09:45:31 +00:00

vnode_pager.c

We already have "int i" in this scope.

2014-11-24 07:57:20 +00:00

vnode_pager.h

Merge from projects/sendfile:

2014-11-23 12:01:52 +00:00