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a7e6ec601a
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Justin Hibbits a7e6ec601a powerpc64/pmap: Reduce scope of PV_LOCK in remove path 
Summary:
Since the 'page pv' lock is one of the most highly contended locks, we
need to try to do as much work outside of the lock as we can.  The
moea64_pvo_remove_from_page() path is a low hanging fruit, where we can
do some heavy work (PHYS_TO_VM_PAGE()) outside of the lock if needed.
In one path, moea64_remove_all(), the PV lock is already held and can't
be swizzled, so we provide two ways to perform the locked operation, one
that can call PHYS_TO_VM_PAGE outside the lock, and one that calls with
the lock already held.

Reviewed By: luporl
Differential Revision: https://reviews.freebsd.org/D20694
2019-07-13 03:02:11 +00:00
..
amd64 Fix syntax. 2019-07-12 19:14:52 +00:00
arm Provide protection against starvation of the ll/sc loops when accessing userpace. 2019-07-12 18:43:24 +00:00
arm64 Provide protection against starvation of the ll/sc loops when accessing userpace. 2019-07-12 18:43:24 +00:00
bsm
cam Remove the CDIOCREADSUBCHANNEL_SYSSPACE ioctl. 2019-07-03 00:10:01 +00:00
cddl Merge the vm_page hold and wire mechanisms. 2019-07-08 19:46:20 +00:00
compat linuxcommon: add module version 2019-07-10 13:47:10 +00:00
conf Put USB ACPI code into own module, uacpi.ko. 2019-07-08 20:53:25 +00:00
contrib Move the new ipf_pcksum6() function from ip_fil_freebsd.c to fil.c. 2019-07-12 01:59:08 +00:00
crypto aesni(4): Fix trivial type typo 2019-05-27 00:47:51 +00:00
ddb ddb show proc typo 2019-06-22 05:35:23 +00:00
dev cxgbe(4): Completely ignore all top level interrupts that are not enabled. 2019-07-12 20:59:10 +00:00
dts arm64: Add support for NanoPI NEO2 2019-05-02 12:56:13 +00:00
fs Add additional check for 'blocks per group' and 'fragments per group' superblock fields. 2019-07-07 08:58:02 +00:00
gdb
geom g_mirror_taste: avoid deadlock, always clear tasting flag 2019-07-01 22:06:36 +00:00
gnu dts: Import files from Linux 5.1 2019-05-08 19:27:30 +00:00
i386 Provide protection against starvation of the ll/sc loops when accessing userpace. 2019-07-12 18:43:24 +00:00
isa
kern Provide protection against starvation of the ll/sc loops when accessing userpace. 2019-07-12 18:43:24 +00:00
kgssapi Make the warning intervals for deprecated crypto algorithms tunable. 2019-06-11 23:00:55 +00:00
libkern Separate kernel crc32() implementation to its own header (gsb_crc32.h) and 2019-06-17 19:49:08 +00:00
mips Provide protection against starvation of the ll/sc loops when accessing userpace. 2019-07-12 18:43:24 +00:00
modules This commit updates rack to what is basically being used at NF as 2019-07-10 20:40:39 +00:00
net Merge the vm_page hold and wire mechanisms. 2019-07-08 19:46:20 +00:00
net80211 Enhance the comment ieee80211_add_channel() to avoid a 2019-06-10 14:31:18 +00:00
netgraph Remove 'dir' argument in ng_ipfw_input, since ip_fw_args now has this info. 2019-03-14 22:30:05 +00:00
netinet add back the comment around the pending DSACK fixes. 2019-07-12 11:45:42 +00:00
netinet6 Add an external mbuf buffer type that holds multiple unmapped pages. 2019-06-29 00:48:33 +00:00
netipsec netipsec key_register: check for M_NOWAIT alloc failure 2019-06-25 15:43:52 +00:00
netpfil Do not modify cmd pointer if it is already last opcode in the rule. 2019-07-12 09:59:21 +00:00
netsmb
nfs
nfsclient
nfsserver
nlm
ofed Fix prio vs. nonprio tagged traffic in RDMACM 2019-06-04 06:21:31 +00:00
opencrypto Move declaration of warninterval out from under COMPAT_FREEBSD32. 2019-06-11 23:28:07 +00:00
powerpc powerpc64/pmap: Reduce scope of PV_LOCK in remove path 2019-07-13 03:02:11 +00:00
riscv Provide protection against starvation of the ll/sc loops when accessing userpace. 2019-07-12 18:43:24 +00:00
rpc Fix malloc stats for the RPCSEC_GSS server code when DEBUG is enabled. 2019-04-04 01:23:06 +00:00
security Extract eventfilter declarations to sys/_eventfilter.h 2019-05-20 00:38:23 +00:00
sparc64 Provide protection against starvation of the ll/sc loops when accessing userpace. 2019-07-12 18:43:24 +00:00
sys This commit updates rack to what is basically being used at NF as 2019-07-10 20:40:39 +00:00
teken
tests
tools Add SDIO support. 2019-06-08 16:26:56 +00:00
ufs Add a new "untrusted" option to the mount command. Its purpose 2019-07-01 23:22:26 +00:00
vm Merge the vm_page hold and wire mechanisms. 2019-07-08 19:46:20 +00:00
x86 Ensure that mds_handler always points to a valid method. 2019-07-11 16:22:49 +00:00
xdr
xen
Makefile