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34c538c356
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Mateusz Guzik 34c538c356 malloc: try to use builtins for zeroing at the callsite 
Plenty of allocation sites pass M_ZERO and sizes which are small and known
at compilation time. Handling them internally in malloc loses this information
and results in avoidable calls to memset.

Instead, let the compiler take the advantage of it whenever possible.

Discussed with:	jeff
2018-06-02 22:20:09 +00:00
..
amd64 amd64: add a mild depessimization to rep mov/stos users 2018-06-02 20:14:43 +00:00
arm aw_mmc: Get max-frequency from the dtb 2018-05-31 15:41:56 +00:00
arm64 Move the code to print the EFI memory table to a new function and call it 2018-05-31 12:37:34 +00:00
bsm
cam cam nvme: fix array overrun 2018-05-28 03:14:36 +00:00
cddl Protect dtrace_getpcstack() from a NULL stack pointer in a trap frame 2018-05-30 03:48:27 +00:00
compat Implement the __sg_alloc_table_from_pages() function based on the existing 2018-06-01 12:09:07 +00:00
conf Improve defaults for per-CPU kernel console colors, especially with 2 2018-06-02 14:07:27 +00:00
contrib malloc: try to use builtins for zeroing at the callsite 2018-06-02 22:20:09 +00:00
crypto disable printing value of SKEIN_LOOP during standard out, 2018-05-19 18:27:14 +00:00
ddb Extend show proc with reaper, sigparent, and vmspace information 2018-05-25 13:59:48 +00:00
dev Use __builtin for various mem* and b* (e.g. bzero) routines. 2018-06-02 18:03:35 +00:00
dts arm: overlays: Update to new path-based sugar format 2018-05-04 14:38:48 +00:00
fs Fix the default number of threads for Flex File layout pNFS client I/O. 2018-06-02 00:11:26 +00:00
gdb amd64: Protect the kernel text, data, and BSS by setting the RW/NX bits 2018-03-06 14:28:37 +00:00
geom Introduce the 'n' flag for the geli attach command. 2018-05-09 20:53:38 +00:00
gnu gnu/dts: Update our copy of arm dts from Linux 4.16 2018-04-20 19:37:08 +00:00
i386 Oops, the last minute reduction in the clobber list for i386 2018-06-02 09:59:27 +00:00
isa Revert r330780, it was improperly tested and results in taking a spin 2018-03-11 20:13:15 +00:00
kern malloc: try to use builtins for zeroing at the callsite 2018-06-02 22:20:09 +00:00
kgssapi kgssapi: Remove trivial deadcode 2018-02-14 00:12:03 +00:00
libkern Use __builtin for various mem* and b* (e.g. bzero) routines. 2018-06-02 18:03:35 +00:00
mips MALTA64EL: disable modules until objcopy is fixed 2018-05-24 23:58:57 +00:00
modules hwpmc: remove unused pre-table driven bits for intel 2018-05-31 22:41:07 +00:00
net Reduce overhead of entropy collection 2018-05-31 21:53:07 +00:00
net80211 Use an accessor function to access ifr_data. 2018-03-30 18:50:13 +00:00
netgraph Catch up two more places to the V_ifnet change to a CK_STAILQ. 2018-05-24 00:06:55 +00:00
netinet malloc: try to use builtins for zeroing at the callsite 2018-06-02 22:20:09 +00:00
netinet6 Remove empty encap_init() function. 2018-05-29 12:32:08 +00:00
netipsec Temporary disable SPDCACHE statistic accounting until proper fix will be 2018-05-28 09:23:28 +00:00
netpfil pf: Replace rwlock on PF_RULES_LOCK with rmlock 2018-05-30 07:11:33 +00:00
netsmb Eliminate the overhead of gratuitous repeated reinitialization of cap_rights 2018-05-09 18:47:24 +00:00
nfs UDP: further performance improvements on tx 2018-05-23 21:02:14 +00:00
nfsclient style: Remove remaining deprecated MALLOC/FREE macros 2018-01-25 22:25:13 +00:00
nfsserver
nlm Use syscall_helper_register() to register syscalls and initialize though 2018-02-10 01:09:22 +00:00
ofed UDP: further performance improvements on tx 2018-05-23 21:02:14 +00:00
opencrypto cryptosoft: Do not exceed crd_len around *crypt_multi 2018-04-19 15:24:21 +00:00
powerpc Included VSX registers in powerpc core dumps 2018-06-02 20:28:58 +00:00
riscv Export a breakpoint() function to userland for riscv. 2018-05-16 16:56:35 +00:00
rpc
security #include <bsm/audit.h> in security/audit/audit_ioctl.h 2018-05-30 21:50:23 +00:00
sparc64 Define memmove and make bcopy alt entry point 2018-05-24 21:11:28 +00:00
sys malloc: try to use builtins for zeroing at the callsite 2018-06-02 22:20:09 +00:00
teken teken: Fix sequences header which was crossing the 80-col boundary 2018-05-29 08:41:44 +00:00
tests epoch(9): Make epochs non-preemptible by default 2018-05-18 17:29:43 +00:00
tools Add dtb overlays support 2018-03-24 21:30:24 +00:00
ufs ufs: remove cgbno variable where unused 2018-05-19 19:30:42 +00:00
vm Remove the "pass" variable from the page daemon control loop. 2018-06-02 00:01:07 +00:00
x86 add support for console resuming, implement it for uart, use on x86 2018-05-29 16:16:24 +00:00
xdr
xen xen: remove dead code from gnttab.h 2018-05-25 08:44:00 +00:00
Makefile