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Diffstat (limited to 'man2/sync.2')
| -rw-r--r-- | man2/sync.2 | 148 |
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diff --git a/man2/sync.2 b/man2/sync.2 deleted file mode 100644 index a556c8e..0000000 --- a/man2/sync.2 +++ /dev/null @@ -1,148 +0,0 @@ -.\" Copyright (c) 1992 Drew Eckhardt (drew@cs.colorado.edu), March 28, 1992 -.\" and Copyright (c) 2011 Michael Kerrisk <mtk.manpages@gmail.com> -.\" -.\" SPDX-License-Identifier: Linux-man-pages-copyleft -.\" -.\" 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. -.\" 2011-09-07, mtk, Added syncfs() documentation, -.\" -.TH sync 2 2023-10-31 "Linux man-pages 6.7" -.SH NAME -sync, syncfs \- commit filesystem caches to disk -.SH LIBRARY -Standard C library -.RI ( libc ", " \-lc ) -.SH SYNOPSIS -.nf -.B #include <unistd.h> -.P -.B void sync(void); -.P -.BI "int syncfs(int " fd ); -.fi -.P -.RS -4 -Feature Test Macro Requirements for glibc (see -.BR feature_test_macros (7)): -.RE -.P -.BR sync (): -.nf - _XOPEN_SOURCE >= 500 -.\" || _XOPEN_SOURCE && _XOPEN_SOURCE_EXTENDED - || /* Since glibc 2.19: */ _DEFAULT_SOURCE - || /* glibc <= 2.19: */ _BSD_SOURCE -.fi -.P -.BR syncfs (): -.nf - _GNU_SOURCE -.fi -.SH DESCRIPTION -.BR sync () -causes all pending modifications to filesystem metadata and cached file -data to be written to the underlying filesystems. -.P -.BR syncfs () -is like -.BR sync (), -but synchronizes just the filesystem containing file -referred to by the open file descriptor -.IR fd . -.SH RETURN VALUE -.BR syncfs () -returns 0 on success; -on error, it returns \-1 and sets -.I errno -to indicate the error. -.SH ERRORS -.BR sync () -is always successful. -.P -.BR syncfs () -can fail for at least the following reasons: -.TP -.B EBADF -.I fd -is not a valid file descriptor. -.TP -.B EIO -An error occurred during synchronization. -This error may relate to data written to any file on the filesystem, or on -metadata related to the filesystem itself. -.TP -.B ENOSPC -Disk space was exhausted while synchronizing. -.TP -.B ENOSPC -.TQ -.B EDQUOT -Data was written to a file on NFS or another filesystem which does not -allocate space at the time of a -.BR write (2) -system call, and some previous write failed due to insufficient -storage space. -.SH VERSIONS -According to the standard specification (e.g., POSIX.1-2001), -.BR sync () -schedules the writes, but may return before the actual -writing is done. -However Linux waits for I/O completions, -and thus -.BR sync () -or -.BR syncfs () -provide the same guarantees as -.BR fsync () -called on every file in -the system or filesystem respectively. -.SH STANDARDS -.TP -.BR sync () -POSIX.1-2008. -.TP -.BR syncfs () -Linux. -.SH HISTORY -.TP -.BR sync () -POSIX.1-2001, SVr4, 4.3BSD. -.TP -.BR syncfs () -Linux 2.6.39, -glibc 2.14. -.P -Since glibc 2.2.2, the Linux prototype for -.BR sync () -is as listed above, -following the various standards. -In glibc 2.2.1 and earlier, -it was "int sync(void)", and -.BR sync () -always returned 0. -.P -In mainline kernel versions prior to Linux 5.8, -.BR syncfs () -will fail only when passed a bad file descriptor -.RB ( EBADF ). -Since Linux 5.8, -.\" commit 735e4ae5ba28c886d249ad04d3c8cc097dad6336 -.BR syncfs () -will also report an error if one or more inodes failed -to be written back since the last -.BR syncfs () -call. -.SH BUGS -Before Linux 1.3.20, Linux did not wait for I/O to complete -before returning. -.SH SEE ALSO -.BR sync (1), -.BR fdatasync (2), -.BR fsync (2) |