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Diffstat (limited to 'man2/bdflush.2')
| -rw-r--r-- | man2/bdflush.2 | 103 |
1 files changed, 0 insertions, 103 deletions
diff --git a/man2/bdflush.2 b/man2/bdflush.2 deleted file mode 100644 index 50b45084a..000000000 --- a/man2/bdflush.2 +++ /dev/null @@ -1,103 +0,0 @@ -.\" Copyright (c) 1995 Michael Chastain (mec@shell.portal.com), 15 April 1995. -.\" -.\" SPDX-License-Identifier: GPL-2.0-or-later -.\" -.\" Modified 1997-01-31 by Eric S. Raymond <esr@thyrsus.com> -.\" Modified 2004-06-17 by Michael Kerrisk <mtk.manpages@gmail.com> -.\" -.TH bdflush 2 (date) "Linux man-pages (unreleased)" -.SH NAME -bdflush \- start, flush, or tune buffer-dirty-flush daemon -.SH SYNOPSIS -.nf -.B #include <sys/kdaemon.h> -.PP -.BI "[[deprecated]] int bdflush(int " func ", long *" address ); -.BI "[[deprecated]] int bdflush(int " func ", long " data ); -.fi -.SH DESCRIPTION -.IR Note : -Since Linux 2.6, -.\" As noted in changes in the 2.5.12 source -this system call is deprecated and does nothing. -It is likely to disappear altogether in a future kernel release. -Nowadays, the task performed by -.BR bdflush () -is handled by the kernel -.I pdflush -thread. -.PP -.BR bdflush () -starts, flushes, or tunes the buffer-dirty-flush daemon. -Only a privileged process (one with the -.B CAP_SYS_ADMIN -capability) may call -.BR bdflush (). -.PP -If -.I func -is negative or 0, and no daemon has been started, then -.BR bdflush () -enters the daemon code and never returns. -.PP -If -.I func -is 1, -some dirty buffers are written to disk. -.PP -If -.I func -is 2 or more and is even (low bit is 0), then -.I address -is the address of a long word, -and the tuning parameter numbered -.RI "(" "func" "\-2)/2" -is returned to the caller in that address. -.PP -If -.I func -is 3 or more and is odd (low bit is 1), then -.I data -is a long word, -and the kernel sets tuning parameter numbered -.RI "(" "func" "\-3)/2" -to that value. -.PP -The set of parameters, their values, and their valid ranges -are defined in the Linux kernel source file -.IR fs/buffer.c . -.SH RETURN VALUE -If -.I func -is negative or 0 and the daemon successfully starts, -.BR bdflush () -never returns. -Otherwise, the return value is 0 on success and \-1 on failure, with -.I errno -set to indicate the error. -.SH ERRORS -.TP -.B EBUSY -An attempt was made to enter the daemon code after -another process has already entered. -.TP -.B EFAULT -.I address -points outside your accessible address space. -.TP -.B EINVAL -An attempt was made to read or write an invalid parameter number, -or to write an invalid value to a parameter. -.TP -.B EPERM -Caller does not have the -.B CAP_SYS_ADMIN -capability. -.SH STANDARDS -Linux. -.SH HISTORY -Since glibc 2.23, glibc no longer supports this obsolete system call. -.SH SEE ALSO -.BR sync (1), -.BR fsync (2), -.BR sync (2) |