[PATCH] man2/vmsplice: splice pages from pipe to memory
From: Andrei Vagin <hidden>
Date: 2017-11-07 07:34:17
Also in:
linux-man
Subsystem:
the rest · Maintainer:
Linus Torvalds
The man page describes that vmsplice can splice pages from memory to a pipe, but it can work to anonther direction as well. Cc: Jens Axboe <axboe-tSWWG44O7X1aa/9Udqfwiw@public.gmane.org> Signed-off-by: Andrei Vagin <redacted> --- man2/vmsplice.2 | 24 +++++++++++++++++++++--- 1 file changed, 21 insertions(+), 3 deletions(-)
diff --git a/man2/vmsplice.2 b/man2/vmsplice.2
index e3e61cf27..8f48b8809 100644
--- a/man2/vmsplice.2
+++ b/man2/vmsplice.2@@ -25,7 +25,7 @@ .\" .TH VMSPLICE 2 2014-10-02 "Linux" "Linux Programmer's Manual" .SH NAME -vmsplice \- splice user pages into a pipe +vmsplice \- splice user pages to/from a pipe .SH SYNOPSIS .nf .BR "#define _GNU_SOURCE" " /* See feature_test_macros(7) */"
@@ -44,13 +44,25 @@ vmsplice \- splice user pages into a pipe .\" the kernel-space one (contrast this to "write()", which copies .\" the actual data, and you can thus reuse the buffer immediately .\" after a successful write), but that is often easy to do. -The +If +.I fd +is opened for writting, the .BR vmsplice () system call maps .I nr_segs ranges of user memory described by .I iov into a pipe. +.\" commit 6a14b90bb6bc7cd83e2a444bf457a2ea645cbfe7 +If +.I fd +is opened for reading, the +.BR vmsplice () +system call fills +.I nr_segs +ranges of user memory described by +.I iov +from a pipe. The file descriptor .I fd must refer to a pipe.
@@ -70,7 +82,6 @@ struct iovec { }; .in .fi