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authorJens Axboe <axboe@suse.de>2006-04-26 10:59:21 +0200
committerJens Axboe <axboe@suse.de>2006-04-26 10:59:21 +0200
commit912d35f86781e64d73be1ef358f703c08905ac37 (patch)
tree5863ad70f5cdccba0c1cd28f83d173deaf71fb83 /arch
parent016b661e2f717168e600f3c85f29e1a49f88e004 (diff)
[PATCH] Add support for the sys_vmsplice syscall
sys_splice() moves data to/from pipes with a file input/output. sys_vmsplice() moves data to a pipe, with the input being a user address range instead. This uses an approach suggested by Linus, where we can hold partial ranges inside the pages[] map. Hopefully this will be useful for network receive support as well. Signed-off-by: Jens Axboe <axboe@suse.de>
Diffstat (limited to 'arch')
-rw-r--r--arch/ia64/kernel/entry.S1
-rw-r--r--arch/powerpc/kernel/systbl.S1
-rw-r--r--arch/powerpc/platforms/cell/spu_callbacks.c1
3 files changed, 3 insertions, 0 deletions
diff --git a/arch/ia64/kernel/entry.S b/arch/ia64/kernel/entry.S
index e3079881121..bcb80ca5cf4 100644
--- a/arch/ia64/kernel/entry.S
+++ b/arch/ia64/kernel/entry.S
@@ -1610,5 +1610,6 @@ sys_call_table:
data8 sys_get_robust_list
data8 sys_sync_file_range // 1300
data8 sys_tee
+ data8 sys_vmsplice
.org sys_call_table + 8*NR_syscalls // guard against failures to increase NR_syscalls
diff --git a/arch/powerpc/kernel/systbl.S b/arch/powerpc/kernel/systbl.S
index 8d152269050..0b98eea73c5 100644
--- a/arch/powerpc/kernel/systbl.S
+++ b/arch/powerpc/kernel/systbl.S
@@ -324,6 +324,7 @@ COMPAT_SYS(ppoll)
SYSCALL(unshare)
SYSCALL(splice)
SYSCALL(tee)
+SYSCALL(vmsplice)
/*
* please add new calls to arch/powerpc/platforms/cell/spu_callbacks.c
diff --git a/arch/powerpc/platforms/cell/spu_callbacks.c b/arch/powerpc/platforms/cell/spu_callbacks.c
index deb3afb9448..b283380a2a1 100644
--- a/arch/powerpc/platforms/cell/spu_callbacks.c
+++ b/arch/powerpc/platforms/cell/spu_callbacks.c
@@ -318,6 +318,7 @@ void *spu_syscall_table[] = {
[__NR_unshare] sys_unshare,
[__NR_splice] sys_splice,
[__NR_tee] sys_tee,
+ [__NR_vmsplice] sys_vmsplice,
};
long spu_sys_callback(struct spu_syscall_block *s)