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authorLinus Torvalds <torvalds@g5.osdl.org>2006-04-26 07:47:55 -0700
committerLinus Torvalds <torvalds@g5.osdl.org>2006-04-26 07:47:55 -0700
commit7b97ebfb931887be63bfa29b6c143e9e9da3f5e8 (patch)
treefaaf77f68ef4192ac1a3c23f43fed122a080d341 /include
parent07db8696f5d484485dde77138ff87d19c8628a75 (diff)
parent1ebd32fc54bd04de6b3944587f25513c0681f98e (diff)
Merge branch 'splice' of git://brick.kernel.dk/data/git/linux-2.6-block
* 'splice' of git://brick.kernel.dk/data/git/linux-2.6-block: [PATCH] splice: add ->splice_write support for /dev/null [PATCH] splice: rearrange moving to/from pipe helpers [PATCH] Add support for the sys_vmsplice syscall [PATCH] splice: fix offset problems [PATCH] splice: fix min() warning
Diffstat (limited to 'include')
-rw-r--r--include/asm-i386/unistd.h3
-rw-r--r--include/asm-ia64/unistd.h3
-rw-r--r--include/asm-powerpc/unistd.h3
-rw-r--r--include/asm-x86_64/unistd.h4
-rw-r--r--include/linux/pipe_fs_i.h17
-rw-r--r--include/linux/syscalls.h3
6 files changed, 29 insertions, 4 deletions
diff --git a/include/asm-i386/unistd.h b/include/asm-i386/unistd.h
index d81d6cfc1bb..eb4b152c82f 100644
--- a/include/asm-i386/unistd.h
+++ b/include/asm-i386/unistd.h
@@ -321,8 +321,9 @@
#define __NR_splice 313
#define __NR_sync_file_range 314
#define __NR_tee 315
+#define __NR_vmsplice 316
-#define NR_syscalls 316
+#define NR_syscalls 317
/*
* user-visible error numbers are in the range -1 - -128: see
diff --git a/include/asm-ia64/unistd.h b/include/asm-ia64/unistd.h
index a40ebec6aee..7107763168b 100644
--- a/include/asm-ia64/unistd.h
+++ b/include/asm-ia64/unistd.h
@@ -290,12 +290,13 @@
#define __NR_get_robust_list 1299
#define __NR_sync_file_range 1300
#define __NR_tee 1301
+#define __NR_vmsplice 1302
#ifdef __KERNEL__
#include <linux/config.h>
-#define NR_syscalls 278 /* length of syscall table */
+#define NR_syscalls 279 /* length of syscall table */
#define __ARCH_WANT_SYS_RT_SIGACTION
diff --git a/include/asm-powerpc/unistd.h b/include/asm-powerpc/unistd.h
index c612f1a6277..34325e29259 100644
--- a/include/asm-powerpc/unistd.h
+++ b/include/asm-powerpc/unistd.h
@@ -303,8 +303,9 @@
#define __NR_unshare 282
#define __NR_splice 283
#define __NR_tee 284
+#define __NR_vmsplice 285
-#define __NR_syscalls 285
+#define __NR_syscalls 286
#ifdef __KERNEL__
#define __NR__exit __NR_exit
diff --git a/include/asm-x86_64/unistd.h b/include/asm-x86_64/unistd.h
index 98c36eae567..feb77cb8c04 100644
--- a/include/asm-x86_64/unistd.h
+++ b/include/asm-x86_64/unistd.h
@@ -615,8 +615,10 @@ __SYSCALL(__NR_splice, sys_splice)
__SYSCALL(__NR_tee, sys_tee)
#define __NR_sync_file_range 277
__SYSCALL(__NR_sync_file_range, sys_sync_file_range)
+#define __NR_vmsplice 278
+__SYSCALL(__NR_vmsplice, sys_vmsplice)
-#define __NR_syscall_max __NR_sync_file_range
+#define __NR_syscall_max __NR_vmsplice
#ifndef __NO_STUBS
diff --git a/include/linux/pipe_fs_i.h b/include/linux/pipe_fs_i.h
index ef7f33c0be1..0008d4bd405 100644
--- a/include/linux/pipe_fs_i.h
+++ b/include/linux/pipe_fs_i.h
@@ -61,4 +61,21 @@ void __free_pipe_info(struct pipe_inode_info *);
/* from/to, of course */
#define SPLICE_F_MORE (0x04) /* expect more data */
+/*
+ * Passed to the actors
+ */
+struct splice_desc {
+ unsigned int len, total_len; /* current and remaining length */
+ unsigned int flags; /* splice flags */
+ struct file *file; /* file to read/write */
+ loff_t pos; /* file position */
+};
+
+typedef int (splice_actor)(struct pipe_inode_info *, struct pipe_buffer *,
+ struct splice_desc *);
+
+extern ssize_t splice_from_pipe(struct pipe_inode_info *, struct file *,
+ loff_t *, size_t, unsigned int,
+ splice_actor *);
+
#endif
diff --git a/include/linux/syscalls.h b/include/linux/syscalls.h
index d3ebc0e68b2..3996960fc56 100644
--- a/include/linux/syscalls.h
+++ b/include/linux/syscalls.h
@@ -574,6 +574,9 @@ asmlinkage long sys_splice(int fd_in, loff_t __user *off_in,
int fd_out, loff_t __user *off_out,
size_t len, unsigned int flags);
+asmlinkage long sys_vmsplice(int fd, const struct iovec __user *iov,
+ unsigned long nr_segs, unsigned int flags);
+
asmlinkage long sys_tee(int fdin, int fdout, size_t len, unsigned int flags);
asmlinkage long sys_sync_file_range(int fd, loff_t offset, loff_t nbytes,