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sync2(2)
NAME
  sync2 - Flush file system metadata and data from memory buffers to disk

SYNOPSIS
  #include <sys/mount.h>

  int sync2 (
	  unsigned int POLICY ,
	  char *path);

STANDARDS
  Interfaces documented on this reference page conform to industry standards
  as follows:

  sync2():  XSH5.0

  Refer to the standards(5) reference page for more information about
  industry standards and associated tags.

PARAMETERS
  POLICY
      Flush the file system memory buffers to disk.  The argument is one of
      the following:

      SYNC_SYNCPOLICY
	  Flush all memory buffers.  Specifying this flag causes the function
	  to behave the same as the sync function.  See sync(2).

      SYNC_SMOOTHSYNCPOLICY
	  Flush all memory buffers except those under smooth sync control.

  path
      The name of a file system or fileset.  Specify the optional path
      parameter when you want to have the POLICY act only on that file system
      instead of all file systems.  Specify a NULL argument when you want to
      have the POLICY act on all file systems.

DESCRIPTION
  The sync2 function causes file system data to be flushed (written) to disk.
  Which memory buffers are flushed to disk depends on the POLICY argument.

  If the policy is SYNC_SYNCPOLICY, all memory buffers are flushed to disk.
  If the policy is SYNC_SMOOTHSYNCPOLICY, all memory buffers except those
  under smooth sync control are flushed to disk.

  To which file systems the POLICY argument applies depends on the path
  argument.  To apply the policy to one file system, name it in the path
  argument.  To apply the policy to all file systems, specify the path
  argument as NULL.

  The writing, although scheduled, is not necessarily complete upon return
  from the sync2 function.



RELATED INFORMATION
  Functions: sync(2)

  Commands: sync(8)

  Standards: standards(5)

Index for Section 2

Alphabetical listing for S

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