Alan Cox 2971897d51 Correct an error of omission in the implementation of the truncation ... operation on POSIX shared memory objects and tmpfs. Previously, neither of these modules correctly handled the case in which the new size of the object or file was not a multiple of the page size. Specifically, they did not handle partial page truncation of data stored on swap. As a result, stale data might later be returned to an application. Interestingly, a data inconsistency was less likely to occur under tmpfs than POSIX shared memory objects. The reason being that a different mistake by the tmpfs truncation operation helped avoid a data inconsistency. If the data was still resident in memory in a PG_CACHED page, then the tmpfs truncation operation would reactivate that page, zero the truncated portion, and leave the page pinned in memory. More precisely, the benevolent error was that the truncation operation didn't add the reactivated page to any of the paging queues, effectively pinning the page. This page would remain pinned until the file was destroyed or the page was read or written. With this change, the page is now added to the inactive queue. Discussed with: jhb Reviewed by: kib (an earlier version) MFC after: 3 weeks		2012-01-08 20:09:26 +00:00
..
amd64	Default to not performing the early-boot memory tests when we detect we	2011-12-31 13:24:53 +00:00
arm	Add missing options so modules build/load correctly.	2012-01-05 20:18:01 +00:00
boot	Document comconsole_port and comconsole_pcidev loader variables.	2012-01-07 11:16:23 +00:00
bsm
cam	Add support for CDRIOCGETBLOCKSIZE and CDRIOCSETBLOCKSIZE IOCTLs to control	2012-01-03 17:04:09 +00:00
cddl	- Allow to change vfs.zfs.arc_meta_limit at runtime.	2012-01-05 22:16:41 +00:00
compat	In sys/compat/linux/linux_ioctl.c, work around a warning when a pointer	2012-01-03 18:49:39 +00:00
conf	Make these two files conditionally build on UFS_ACL, as it doesn't	2012-01-08 00:55:22 +00:00
contrib	Merge from OpenBSD:	2012-01-07 14:39:45 +00:00
crypto	Update Copyright.	2011-10-27 14:15:26 +00:00
ddb	Use strchr() and strrchr().	2012-01-02 12:12:10 +00:00
dev	.. the AR5416 HAL code touches the MIMO parts in HAL_CHANNEL,	2012-01-07 20:23:05 +00:00
fs	Correct an error of omission in the implementation of the truncation	2012-01-08 20:09:26 +00:00
gdb	kern cons: introduce infrastructure for console grabbing by kernel	2011-12-17 15:08:43 +00:00
geom	GEOM_UNCOMPRESS module, can be used with uzip images and with new ulzma images.	2012-01-04 23:39:11 +00:00
gnu	Use strchr() and strrchr().	2012-01-02 12:12:10 +00:00
i386	Fix the broken module build I introduced earlier.	2012-01-07 19:38:26 +00:00
ia64	Flip on IEEE80211_SUPPORT_MESH and AH_SUPPORT_AR5416, the	2012-01-05 17:28:05 +00:00
isa	- There's no need to overwrite the default device method with the default	2011-11-22 21:28:20 +00:00
kern	Correct an error of omission in the implementation of the truncation	2012-01-08 20:09:26 +00:00
kgssapi	Add missing break statement to make sure all 3DES etypes really are treated	2011-10-10 09:13:07 +00:00
libkern	Implement extensions on top of standards instead of the other way around.	2012-01-03 07:05:30 +00:00
mips	Fix relocations for MIPS64:	2012-01-08 05:44:19 +00:00
modules	Re-enable this bit of logic from before, which only sets a default	2012-01-05 06:22:09 +00:00
net	Copy ifa->if_data to ifam->ifam_data. This was forgotten in r228571.	2012-01-08 17:11:53 +00:00
net80211	Correct comment for the IPv6 case to say "traffic class" not "TOS"	2012-01-07 23:41:38 +00:00
netatalk	Convert all users of IF_ADDR_LOCK to use new locking macros that specify	2012-01-05 19:00:36 +00:00
netgraph	Use strchr() and strrchr().	2012-01-02 12:12:10 +00:00
netinet	Make it possible to use alternative source hardware address	2012-01-08 17:25:15 +00:00
netinet6	Add an SCTP sysctl "blackhole", similar to the one for TCP.	2012-01-08 09:56:24 +00:00
netipsec	Remove unused 'plen' variable.	2011-11-26 23:57:03 +00:00
netipx	Convert all users of IF_ADDR_LOCK to use new locking macros that specify	2012-01-05 19:00:36 +00:00
netnatm
netncp	Change ncp_scan_bindery_object() to pass a constant search string.	2011-10-16 08:44:03 +00:00
netsmb	Add unicode support to msdosfs and smbfs; original pathes from imura,	2011-11-18 03:05:20 +00:00
nfs	Some cleanup of BOOTP code. Initially I wanted to just change the ifioctl()	2011-12-13 07:02:48 +00:00
nfsclient	jwd@ reported a problem via email where the old NFS client would	2011-12-21 02:45:51 +00:00
nfsserver	Honor NFSv3 commit call (RFC 1813, Section 3.3.21) where when count is 0,	2011-12-15 02:26:53 +00:00
nlm	Mark all SYSCTL_NODEs static that have no corresponding SYSCTL_DECLs.	2011-11-07 15:43:11 +00:00
ofed	Replace __signed by signed.	2011-12-13 13:38:03 +00:00
opencrypto	Add the fo_chown and fo_chmod methods to struct fileops and use them	2011-08-16 20:07:47 +00:00
pc98	Flip these options on so the modules build correctly for now.	2012-01-06 08:51:20 +00:00
pci	To save more power, switch to 10/100Mbps link when controller is	2011-11-23 23:29:18 +00:00
powerpc	Fix build on powerpc64 too. The same as r229640.	2012-01-05 22:06:01 +00:00
rpc	Both a crash reported on freebsd-current on Oct. 18 under the	2011-11-03 14:38:03 +00:00
security	Use strchr() and strrchr().	2012-01-02 12:12:10 +00:00
sparc64	Add "options CAPABILITY_MODE" and "options CAPABILITIES" to GENERIC kernel	2011-12-29 22:48:36 +00:00
sys	Add __generic(), to be able to use a very simple _Generic().	2012-01-05 10:43:03 +00:00
teken	Link the demo application against ncursesw to make Unicode work.	2011-10-13 14:20:27 +00:00
tools	Restore the comment that I removed by accident.	2011-11-09 13:26:59 +00:00
ufs	Migrate ufs and ext2fs from skpc() to memcchr().	2012-01-01 20:47:33 +00:00
vm	Do not restart the scan in vm_object_page_clean() on the object	2012-01-04 16:04:20 +00:00
x86	Fix a few bugs in the SRAT parsing code:	2012-01-03 20:53:58 +00:00
xdr
xen	s/timout/timeout	2011-12-15 06:29:13 +00:00
Makefile	Improve the cscope target's handling of MD directories. Automatically	2012-01-03 17:31:27 +00:00