freebsd-skq/sys/vm
alc 31fbaf5d5c Long ago, revision 1.22 of vm/vm_pager.h introduced a bug. Specifically,
it introduced a check after the call to file system's get pages method
that assumes that the get pages method does not change the array of pages
that is passed to it.  In the case of vnode_pager_generic_getpages(),
this assumption has been incorrect.  The contents of the array of pages
may be shifted by vnode_pager_generic_getpages().  Likely, the problem
has been hidden by vnode_pager_haspage() limiting the set of pages that
are passed to vnode_pager_generic_getpages() such that a shift never
occurs.

The fix implemented herein is to adjust the pointer to the array of pages
rather than shifting the pages within the array.

MFC after: 3 weeks
Fix suggested by: tegge
2006-10-14 23:21:48 +00:00
..
default_pager.c /* -> /*- for license, minor formatting changes 2005-01-07 02:29:27 +00:00
device_pager.c Ensure that the page's new field for object-synchronized flags is always 2006-08-11 17:18:58 +00:00
memguard.c Improve memguard a bit: 2005-12-30 11:45:07 +00:00
memguard.h Improve memguard a bit: 2005-12-30 11:45:07 +00:00
phys_pager.c /* -> /*- for license, minor formatting changes 2005-01-07 02:29:27 +00:00
pmap.h Complete the transition from pmap_page_protect() to pmap_remove_write(). 2006-08-01 19:06:06 +00:00
redzone.c Add buffer corruption protection (RedZone) for kernel's malloc(9). 2006-01-31 11:09:21 +00:00
redzone.h Add buffer corruption protection (RedZone) for kernel's malloc(9). 2006-01-31 11:09:21 +00:00
swap_pager.c Introduce a field to struct vm_page for storing flags that are 2006-08-09 17:43:27 +00:00
swap_pager.h On shutdown try to turn off all swap devices. This way GEOM providers are 2006-04-10 10:03:41 +00:00
uma_core.c Fix build of uma_core.c when DDB is not compiled into the kernel by 2006-07-18 01:13:18 +00:00
uma_dbg.c Improve canonicalization of copyrights. Order copyrights by order of 2005-07-16 09:51:52 +00:00
uma_dbg.h Improve canonicalization of copyrights. Order copyrights by order of 2005-07-16 09:51:52 +00:00
uma_int.h Wrap inlines in uma_int.h in #ifdef _KERNEL so that uma_int.h can be 2005-08-04 10:03:53 +00:00
uma.h As alc pointed out to me, vm_page.c 1.305 was incomplete: uma_startup() 2005-10-08 21:03:54 +00:00
vm_contig.c sun4v requires TSBs (translation storage buffers) to be contiguous and be 2006-10-12 04:41:39 +00:00
vm_extern.h Close race between vmspace_exitfree() and exit1() and races between 2006-05-29 21:28:56 +00:00
vm_fault.c Reimplement the page's NOSYNC flag as an object-synchronized instead of a 2006-08-13 00:11:09 +00:00
vm_glue.c Close race between vmspace_exitfree() and exit1() and races between 2006-05-29 21:28:56 +00:00
vm_init.c Add the vm.exec_map_entries tunable and read-only sysctl, which controls 2005-04-25 19:22:05 +00:00
vm_kern.c /* -> /*- for license, minor formatting changes 2005-01-07 02:29:27 +00:00
vm_kern.h /* -> /*- for license, minor formatting changes 2005-01-07 02:29:27 +00:00
vm_map.c Retire debug.mpsafevm. None of the architectures supported in CVS require 2006-07-21 23:22:49 +00:00
vm_map.h Close race between vmspace_exitfree() and exit1() and races between 2006-05-29 21:28:56 +00:00
vm_meter.c Retire debug.mpsafevm. None of the architectures supported in CVS require 2006-07-21 23:22:49 +00:00
vm_mmap.c Make the mincore(2) return ENOMEM when requested range is not fully mapped. 2006-06-21 12:59:05 +00:00
vm_object.c Add _vm_stats and _vm_stats_misc to the sysctl declarations in sysctl.h and 2006-08-21 06:27:28 +00:00
vm_object.h Eliminate OBJ_WRITEABLE. It hasn't been used in a long time. 2006-07-21 06:40:29 +00:00
vm_page.c Fix two minor style(9) nits in v1.313 which were noticed during an 2006-09-29 00:20:56 +00:00
vm_page.h Make vm_page_release_contig() static. 2006-09-03 22:24:08 +00:00
vm_pageout.c Complete the transition from pmap_page_protect() to pmap_remove_write(). 2006-08-01 19:06:06 +00:00
vm_pageout.h /* -> /*- for license, minor formatting changes 2005-01-07 02:29:27 +00:00
vm_pageq.c The return value from vm_pageq_add_new_page() is not used. Eliminate it. 2006-08-25 04:36:19 +00:00
vm_pager.c Normalize a significant number of kernel malloc type names: 2005-10-31 15:41:29 +00:00
vm_pager.h Update some comments to reflect the change from spl-based to lock-based 2005-05-18 22:08:52 +00:00
vm_param.h /* -> /*- for license, minor formatting changes 2005-01-07 02:29:27 +00:00
vm_unix.c /* -> /*- for license, minor formatting changes 2005-01-07 02:29:27 +00:00
vm_zeroidle.c Add _vm_stats and _vm_stats_misc to the sysctl declarations in sysctl.h and 2006-08-21 06:27:28 +00:00
vm.h Retire debug.mpsafevm. None of the architectures supported in CVS require 2006-07-21 23:22:49 +00:00
vnode_pager.c Long ago, revision 1.22 of vm/vm_pager.h introduced a bug. Specifically, 2006-10-14 23:21:48 +00:00
vnode_pager.h Move the body of vop_stdcreatevobject() over to the vnode_pager under 2005-01-24 21:21:59 +00:00