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
..
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	sh: Add an arch/sh/kernel/.gitignore	2008-07-29 08:29:32 +09:00
asm-offsets.c	sh: Provide diagnostic kernel stack checks	2009-07-11 10:07:58 +09:00
cpufreq.c	sh: cpufreq: Include CPU id in info messages.	2009-09-15 09:26:04 +09:00
crash_dump.c	kdump: make elfcorehdr_addr independent of CONFIG_PROC_VMCORE	2008-10-20 08:52:39 -07:00
debugtraps.S	sh: unwinder: Use a special bug flag for unwinder traps.	2009-08-22 05:28:25 +09:00
disassemble.c	sh: Add a simple code dumper for SUPERH32 show_regs().	2008-12-22 18:43:49 +09:00
dumpstack.c	sh: flag the default unwinder as reliable.	2009-08-15 01:09:03 +09:00
dwarf.c	sh: includecheck fix: dwarf.c	2009-09-24 16:21:50 +09:00
early_printk.c	sh: Fix up early printk build error.	2009-08-04 15:54:33 +09:00
entry-common.S	sh: Remove implicit sign extension from assembler immediates	2009-08-24 17:09:53 +09:00
ftrace.c	sh: Move the FTRACE_SYSCALL_MAX definition in to asm/ftrace.h.	2009-08-24 22:48:27 +09:00
gpio.c	sh: use gpiolib	2009-01-27 14:49:10 +09:00
head_32.S	sh: convert to use __HEAD and HEAD_TEXT macros.	2009-04-26 09:20:39 -07:00
head_64.S	sh: convert to use __HEAD and HEAD_TEXT macros.	2009-04-26 09:20:39 -07:00
idle.c	sh: Provide cpu_idle_wait() to fix up cpuidle/SMP build.	2009-06-23 17:30:17 +09:00
init_task.c	Use new __init_task_data macro in arch init_task.c files.	2009-09-21 06:27:08 +02:00
io.c	sh: Optimise memcpy_to/fromio for SH4	2009-08-24 17:35:07 +09:00
io_generic.c	sh: generic_in/outs{bwl} optimizations.	2009-08-24 17:26:39 +09:00
io_trapped.c	sh: Only shout about fixing up unexpected unaligned accesses	2009-08-29 20:31:44 +09:00
irq.c	Use macros for .bss.page_aligned section.	2009-09-21 06:27:08 +02:00
kgdb.c	sh: Kill off kgdb's magical NMI debouncing.	2009-09-01 17:45:35 +09:00
kprobes.c	sh: kprobes: kretprobe_trampoline needs to be global.	2008-09-09 08:13:28 +09:00
localtimer.c	sh: Fix up clockevents broadcasting.	2009-08-19 18:00:03 +09:00
machine_kexec.c	sh: disallow kexec virtual entry	2009-03-20 18:56:04 +09:00
machvec.c	sh: boot word / mode pin support V2	2009-06-01 15:44:49 +09:00
Makefile	sh: nmi_debug support.	2009-09-01 17:38:32 +09:00
module.c	module: cleanup FIXME comments about trimming exception table entries.	2009-06-12 21:47:05 +09:30
nmi_debug.c	sh: nmi_debug support.	2009-09-01 17:38:32 +09:00
process_32.c	sh: Use internal watchdog timer to perform reset	2009-08-24 16:20:44 +09:00
process_64.c	sh: Tidy up NEFF-based sign extension for SH-5.	2009-08-04 17:14:39 +09:00
ptrace_32.c	sh: Wire up HAVE_SYSCALL_TRACEPOINTS.	2009-09-16 14:30:34 +09:00
ptrace_64.c	sh: Wire up HAVE_SYSCALL_TRACEPOINTS.	2009-09-16 14:30:34 +09:00
relocate_kernel.S	sh: add kexec jump support	2009-03-18 18:57:43 +09:00
setup.c	Merge branch 'master' into sh/smp	2009-09-01 13:54:14 +09:00
sh_bios.c	sh: Kill off sh_bios_in_gdb_mode().	2008-12-22 18:44:44 +09:00
sh_ksyms_32.c	sh: wire up clear_user_highpage() for sh4, convert sh7705.	2009-07-27 20:53:22 +09:00
sh_ksyms_64.c	sh: Fix up the SH-5 build with caches enabled.	2009-08-16 01:50:17 +09:00
signal_32.c	Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6	2009-09-16 13:48:32 +09:00
signal_64.c	Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6	2009-09-16 13:48:32 +09:00
smp.c	cpumask: Use accessors for cpu_*_mask: sh	2009-06-14 18:24:16 +09:00
stacktrace.c	sh: stacktrace: Properly terminate the trace entry buffer.	2009-08-15 01:11:37 +09:00
swsusp.c	sh: hibernation support	2009-03-10 12:55:40 +09:00
sys_sh.c	sh: fix sys_cacheflush error checking	2009-08-24 18:59:09 +09:00
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
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	Merge git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6	2009-09-18 09:43:09 -07:00
topology.c	sh: replace remaining __FUNCTION__ occurrences	2008-03-06 11:18:22 +09:00
traps.c	sh: nmi_debug support.	2009-09-01 17:38:32 +09:00
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	sh: Always fixup unaligned userspace accesses on sh64.	2009-05-08 20:32:56 +09:00
unwinder.c	sh: unwinder: Use a special bug flag for unwinder traps.	2009-08-22 05:28:25 +09:00
vmlinux.lds.S	Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6	2009-09-16 13:48:32 +09:00