generic_shutdown_super(9) [suse man page]

GENERIC_SHUTDOWN_SUP(9) 					   The Linux VFS					   GENERIC_SHUTDOWN_SUP(9)

NAME

       generic_shutdown_super - common helper for ->kill_sb

SYNOPSIS

       void generic_shutdown_super(struct super_block * sb);

ARGUMENTS

       sb
	   superblock to kill

DESCRIPTION

       generic_shutdown_super does all fs-independent work on superblock shutdown. Typical ->kill_sb should pick all fs-specific objects that need
       destruction out of superblock, call generic_shutdown_super and release aforementioned objects. Note: dentries and inodes _are_ taken care
       of and do not need specific handling.

       Upon calling this function, the filesystem may no longer alter or rearrange the set of dentries belonging to this super_block, nor may it
       change the attachments of dentries to inodes.

COPYRIGHT

Kernel Hackers Manual 2.6.					     July 2010						   GENERIC_SHUTDOWN_SUP(9)

Sys::Statistics::Linux::FileStats(3pm)			User Contributed Perl Documentation		    Sys::Statistics::Linux::FileStats(3pm)

NAME

       Sys::Statistics::Linux::FileStats - Collect linux file statistics.

SYNOPSIS

	   use Sys::Statistics::Linux::FileStats;

	   my $lxs  = Sys::Statistics::Linux::FileStats->new;
	   my $stat = $lxs->get;

DESCRIPTION

       Sys::Statistics::Linux::FileStats gathers file statistics from the virtual /proc filesystem (procfs).

       For more information read the documentation of the front-end module Sys::Statistics::Linux.

FILE STATISTICS

       Generated by /proc/sys/fs/file-nr, /proc/sys/fs/inode-nr and /proc/sys/fs/dentry-state.

	   fhalloc    -  Number of allocated file handles.
	   fhfree     -  Number of free file handles.
	   fhmax      -  Number of maximum file handles.
	   inalloc    -  Number of allocated inodes.
	   infree     -  Number of free inodes.
	   inmax      -  Number of maximum inodes.
	   dentries   -  Dirty directory cache entries.
	   unused     -  Free diretory cache size.
	   agelimit   -  Time in seconds the dirty cache entries can be reclaimed.
	   wantpages  -  Pages that are requested by the system when memory is short.

METHODS

   new()
       Call "new()" to create a new object.

	   my $lxs = Sys::Statistics::Linux::FileStats->new;

       It's possible to set the path to the proc filesystem.

	    Sys::Statistics::Linux::FileStats->new(
	       files => {
		   # This is the default
		   path     => '/proc',
		   file_nr  => 'sys/fs/file-nr',
		   inode_nr => 'sys/fs/inode-nr',
		   dentries => 'sys/fs/dentry-state',
	       }
	   );

   get()
       Call "get()" to get the statistics. "get()" returns the statistics as a hash reference.

	   my $stat = $lxs->get;

EXPORTS

       No exports.

SEE ALSO

       proc(5)

REPORTING BUGS

       Please report all bugs to <jschulz.cpan(at)bloonix.de>.

AUTHOR

       Jonny Schulz <jschulz.cpan(at)bloonix.de>.

COPYRIGHT

       Copyright (c) 2006, 2007 by Jonny Schulz. All rights reserved.

       This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.

perl v5.14.2							    2012-03-09				    Sys::Statistics::Linux::FileStats(3pm)