Arnaldo Carvalho de Melo a2e2725541 net: Introduce recvmmsg socket syscall ... Meaning receive multiple messages, reducing the number of syscalls and net stack entry/exit operations. Next patches will introduce mechanisms where protocols that want to optimize this operation will provide an unlocked_recvmsg operation. This takes into account comments made by: . Paul Moore: sock_recvmsg is called only for the first datagram, sock_recvmsg_nosec is used for the rest. . Caitlin Bestler: recvmmsg now has a struct timespec timeout, that works in the same fashion as the ppoll one. If the underlying protocol returns a datagram with MSG_OOB set, this will make recvmmsg return right away with as many datagrams (+ the OOB one) it has received so far. . Rémi Denis-Courmont & Steven Whitehouse: If we receive N < vlen datagrams and then recvmsg returns an error, recvmmsg will return the successfully received datagrams, store the error and return it in the next call. This paves the way for a subsequent optimization, sk_prot->unlocked_recvmsg, where we will be able to acquire the lock only at batch start and end, not at every underlying recvmsg call. Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>		2009-10-12 23:40:10 -07:00
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cpu	sh: Add support DMA Engine to SH7780	2009-09-25 12:19:33 +09:00
vsyscall	kbuild: rename ld-option to cc-ldoption	2009-09-20 12:27:42 +02:00
.gitignore
asm-offsets.c
cpufreq.c
crash_dump.c
debugtraps.S
disassemble.c
dumpstack.c
dwarf.c	sh: includecheck fix: dwarf.c	2009-09-24 16:21:50 +09:00
early_printk.c
entry-common.S
ftrace.c
gpio.c
head_32.S
head_64.S
idle.c
init_task.c	Use new __init_task_data macro in arch init_task.c files.	2009-09-21 06:27:08 +02:00
io_generic.c
io_trapped.c
io.c
irq.c	Use macros for .bss.page_aligned section.	2009-09-21 06:27:08 +02:00
kgdb.c
kprobes.c
localtimer.c
machine_kexec.c
machvec.c
Makefile
module.c
nmi_debug.c
process_32.c
process_64.c
ptrace_32.c
ptrace_64.c
relocate_kernel.S
setup.c
sh_bios.c
sh_ksyms_32.c
sh_ksyms_64.c
signal_32.c
signal_64.c
smp.c
stacktrace.c
swsusp.c
sys_sh32.c	headers: utsname.h redux	2009-09-23 18:13:10 -07:00
sys_sh64.c	headers: utsname.h redux	2009-09-23 18:13:10 -07:00
sys_sh.c
syscalls_32.S	perf: Do the big rename: Performance Counters -> Performance Events	2009-09-21 14:28:04 +02:00
syscalls_64.S	net: Introduce recvmmsg socket syscall	2009-10-12 23:40:10 -07:00
time.c
topology.c
traps_32.c	sh: Fix up uninitialized variable use caught by gcc 4.4.	2009-09-24 17:48:15 +09:00
traps_64.c
traps.c
unwinder.c
vmlinux.lds.S