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Diffstat (limited to 'man2/sync.2')
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diff --git a/man2/sync.2 b/man2/sync.2 new file mode 100644 index 000000000..c8b0b1d8c --- /dev/null +++ b/man2/sync.2 @@ -0,0 +1,64 @@ +.\" Hey Emacs! This file is -*- nroff -*- source. +.\" +.\" Copyright (c) 1992 Drew Eckhardt (drew@cs.colorado.edu), March 28, 1992 +.\" +.\" Permission is granted to make and distribute verbatim copies of this +.\" manual provided the copyright notice and this permission notice are +.\" preserved on all copies. +.\" +.\" Permission is granted to copy and distribute modified versions of this +.\" manual under the conditions for verbatim copying, provided that the +.\" entire resulting derived work is distributed under the terms of a +.\" permission notice identical to this one. +.\" +.\" Since the Linux kernel and libraries are constantly changing, this +.\" manual page may be incorrect or out-of-date. The author(s) assume no +.\" responsibility for errors or omissions, or for damages resulting from +.\" the use of the information contained herein. The author(s) may not +.\" have taken the same level of care in the production of this manual, +.\" which is licensed free of charge, as they might when working +.\" professionally. +.\" +.\" Formatted or processed versions of this manual, if unaccompanied by +.\" the source, must acknowledge the copyright and authors of this work. +.\" +.\" Modified by Michael Haardt <michael@moria.de> +.\" Modified Sat Jul 24 12:02:47 1993 by Rik Faith <faith@cs.unc.edu> +.\" Modified 15 Apr 1995 by Michael Chastain <mec@shell.portal.com>: +.\" Added reference to `bdflush(2)'. +.\" Modified 960414 by Andries Brouwer <aeb@cwi.nl>: +.\" Added the fact that since 1.3.20 sync actually waits. +.\" Modified Tue Oct 22 22:27:07 1996 by Eric S. Raymond <esr@thyrsus.com> +.\" Modified 2001-10-10 by aeb, following Michael Kerrisk. +.\" +.TH SYNC 2 2001-10-10 "Linux 2.4" "Linux Programmer's Manual" +.SH NAME +sync \- commit buffer cache to disk +.SH SYNOPSIS +.B #include <unistd.h> +.sp +.B void sync(void); +.SH DESCRIPTION +.B sync +first commits inodes to buffers, and then buffers to disk. +.SH ERRORS +This function is always successful. +.SH "CONFORMING TO" +SVr4, SVID, X/OPEN, BSD 4.3 +.SH BUGS +According to the standard specification (e.g., SVID), +\fBsync()\fP schedules the writes, but may return before the actual +writing is done. +However, since version 1.3.20 Linux does actually wait. +(This still does not guarantee data integrity: modern disks have +large caches.) +.SH NOTES +Since glibc 2.2.2 the Linux prototype is as listed above, +following the various standards. In libc4, libc5, and glibc up to 2.2.1 +it was "int sync(void)", and sync always returned 0. +.SH "SEE ALSO" +.BR bdflush (2), +.BR fdatasync (2), +.BR fsync (2), +.BR sync (8), +.BR update (8) |