Alan Cox 41bf90bb78 Address two problems with sendfile(..., SF_NOCACHE) and apply one ... "optimization". First, sendfile(..., SF_NOCACHE) frees pages without checking whether those pages are mapped. This can leave the system with mappings to free or repurposed pages. Second, a page can be busied between the time of the current busy test and acquiring the object lock. Essentially, the test performed before the object lock is acquired can only be regarded as an optimization to short-circuit further work on the page. It cannot, however, be relied upon to prove that it is safe to free the page. Third, when sendfile(..., SF_NOCACHE) was originally implemented, vm_page_deactivate_noreuse() did not yet exist. Use vm_page_deactivate_noreuse() instead of vm_page_deactivate(), because it comes closer to freeing the page. In collaboration with: glebius Discussed with: gallatin, kib, markj X-MFC after: r324448		2017-10-13 16:31:50 +00:00
..
amd64	Change amd64_get_ldt() to return 'EOF' when the LDT is not yet	2017-10-09 16:20:39 +00:00
arm	a10_ehci: Remove the passby code	2017-10-12 18:00:29 +00:00
arm64	Support the EFI Runtime Services on arm64. As with amd64 we use the 1:1	2017-10-10 13:05:26 +00:00
boot	Move panic back into libsa. It's documented in libstand(3) to belong	2017-10-12 15:16:27 +00:00
bsm
cam	Fix iSCSI target panics on concurrent session teardown and display	2017-10-04 11:35:04 +00:00
cddl	illumos mutex_init: use SX_NEW instead of bzero	2017-10-09 07:44:09 +00:00
compat	Don't call selrecord() outside the select system call in the LinuxKPI, because	2017-10-13 14:14:46 +00:00
conf	Support the EFI Runtime Services on arm64. As with amd64 we use the 1:1	2017-10-10 13:05:26 +00:00
contrib	Merge ACPICA 20170929 (take 2).	2017-10-10 19:33:24 +00:00
crypto	aesni(4): CRYPTO_AES_NIST_GCM_16 mandates MAC	2017-10-04 21:15:45 +00:00
ddb	Rename mkdumpheader() and group EKCD functions in kern_shutdown.c.	2017-08-18 04:04:09 +00:00
dev	o Support for Kabylake CPU PMCs (fall down to PMC_CPU_INTEL_SKYLAKE).	2017-10-13 15:02:29 +00:00
fs	When unmounting a tmpfs, do not call free_unr.	2017-10-11 21:53:53 +00:00
gdb
geom	Display rotation rate and TRIM/UNMAP support in diskinfo(8)	2017-10-04 15:09:49 +00:00
gnu
i386	Change i386_get_ldt() to return 'EOF' when the requested range of	2017-10-09 16:19:26 +00:00
isa	Use better hard-coded defaults for the cursor shape, and remove nearby	2017-08-19 19:33:16 +00:00
kern	Address two problems with sendfile(..., SF_NOCACHE) and apply one	2017-10-13 16:31:50 +00:00
kgssapi
libkern	Continuing efforts to provide hardening of FFS, this change adds a	2017-09-22 12:45:15 +00:00
mips	bhnd: Add support for supplying bus I/O callbacks when initializing an EROM	2017-09-27 19:48:34 +00:00
modules	Hard link if_igb.ko to if_em.ko. Use a LINK directive to ensure that	2017-10-10 19:14:40 +00:00
net	rss: Remove never defined UDP_IPV4_EX	2017-10-11 06:08:01 +00:00
net80211	[net80211] don't try to follow a NULL rxs pointer down the sink.	2017-10-13 06:49:07 +00:00
netgraph	Correction after r323873: #include <sys/lock.h> in addition to <sys/rmlock.h>	2017-09-28 11:26:37 +00:00
netinet	Declare more TCP globals in tcp_var.h, so that alternative TCP stacks	2017-10-11 20:36:09 +00:00
netinet6	Hide struct socket and struct unpcb from the userland.	2017-10-02 23:29:56 +00:00
netipsec	opencrypto: Loosen restriction on HMAC key sizes	2017-09-26 16:18:10 +00:00
netpfil	Fix regression in handling O_FORWARD_IP opcode after r279948.	2017-10-13 11:11:53 +00:00
netsmb	netsmb: Fix buggy/racy smb_strdupin()	2017-09-29 15:53:26 +00:00
nfs
nfsclient
nfsserver
nlm
ofed	Make sure the IPv6 scope ID gets zeroed inside the GID. Else searching for a	2017-10-10 12:36:41 +00:00
opencrypto	crypto(9): Print flags in more useful hex	2017-10-11 20:04:30 +00:00
powerpc	PPC: increase MAX_PICS to 32	2017-10-02 06:05:19 +00:00
riscv	Sync with amd64/arm/arm64/i386/mips pmap change r288256:	2017-09-20 04:19:49 +00:00
rpc
security	Sprinkle __read_frequently on few obvious places.	2017-09-06 20:33:33 +00:00
sparc64	Don't use a non-zero argument for __builtin_frame_address	2017-10-11 03:50:44 +00:00
sys	Add clearing function for unr(9).	2017-10-11 21:53:50 +00:00
teken	Fix syscons escape sequence for setting the local cursor type. This sequence	2017-08-18 15:40:40 +00:00
tests
tools
ufs	Don't defer wakeup()s for completed journal workitems.	2017-09-26 23:24:15 +00:00
vm	Evaluate the real size of the sblk_zone.	2017-10-13 16:23:05 +00:00
x86	x86: Decode AMD "Extended Feature Extensions ID EBX" bits	2017-09-20 18:30:37 +00:00
xdr
xen
Makefile