/*
 * Copyright (c) 2000-2001 Christoph Hellwig.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions, and the following disclaimer,
 *    without modification.
 * 2. The name of the author may not be used to endorse or promote products
 *    derived from this software without specific prior written permission.
 *
 * Alternatively, this software may be distributed under the terms of the
 * GNU General Public License ("GPL").
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 *
 */
#ifndef _VXFS_DIR_H_
#define _VXFS_DIR_H_

/*
 * Veritas filesystem driver - directory structure.
 *
 * This file contains the definition of the vxfs directory format.
 */


/*
 * VxFS directory block header.
 *
 * This entry is the head of every filesystem block in a directory.
 * It is used for free space management and additionally includes
 * a hash for speeding up directory search (lookup).
 *
 * The hash may be empty and in fact we do not use it all in the
 * Linux driver for now.
 */
struct vxfs_dirblk {
	__fs16		d_free;		/* free space in dirblock */
	__fs16		d_nhash;	/* no of hash chains */
	__fs16		d_hash[1];	/* hash chain */
};

/*
 * VXFS_NAMELEN is the maximum length of the d_name field
 *	of an VxFS directory entry.
 */
#define VXFS_NAMELEN	256

/*
 * VxFS directory entry.
 */
struct vxfs_direct {
	__fs32		d_ino;			/* inode number */
	__fs16		d_reclen;		/* record length */
	__fs16		d_namelen;		/* d_name length */
	__fs16		d_hashnext;		/* next hash entry */
	char		d_name[VXFS_NAMELEN];	/* name */
};

/*
 * VXFS_DIRPAD defines the directory entry boundaries, is _must_ be
 *	a multiple of four.
 * VXFS_NAMEMIN is the length of a directory entry with a NULL d_name.
 * VXFS_DIRROUND is an internal macros that rounds a length to a value
 *	usable for directory sizes.
 * VXFS_DIRLEN calculates the directory entry size for an entry with
 *	a d_name with size len.
 */
#define VXFS_DIRPAD		4
#define VXFS_NAMEMIN		offsetof(struct vxfs_direct, d_name)
#define VXFS_DIRROUND(len)	((VXFS_DIRPAD + (len) - 1) & ~(VXFS_DIRPAD -1))
#define VXFS_DIRLEN(len)	(VXFS_DIRROUND(VXFS_NAMEMIN + (len)))

/*
 * VXFS_DIRBLKOV is the overhead of a specific dirblock.
 */
#define VXFS_DIRBLKOV(sbi, dbp)	\
	((sizeof(short) * fs16_to_cpu(sbi, dbp->d_nhash)) + 4)

#endif /* _VXFS_DIR_H_ */
09672d053a2228'>Documentation</a>/<a href='/cgit.cgi/linux/net-next.git/commit/tools/perf/Documentation/perf-inject.txt?id=3365135d43f861003555c963b309672d053a2228'>perf-inject.txt</a></div><div class='content'><div class='cgit-panel'><b>diff options</b><form method='get'><input type='hidden' name='id' value='3365135d43f861003555c963b309672d053a2228'/><table><tr><td colspan='2'/></tr><tr><td class='label'>context:</td><td class='ctrl'><select name='context' onchange='this.form.submit();'><option value='1'>1</option><option value='2'>2</option><option value='3' selected='selected'>3</option><option value='4'>4</option><option value='5'>5</option><option value='6'>6</option><option value='7'>7</option><option value='8'>8</option><option value='9'>9</option><option value='10'>10</option><option value='15'>15</option><option value='20'>20</option><option value='25'>25</option><option value='30'>30</option><option value='35'>35</option><option value='40'>40</option></select></td></tr><tr><td class='label'>space:</td><td class='ctrl'><select name='ignorews' onchange='this.form.submit();'><option value='0' selected='selected'>include</option><option value='1'>ignore</option></select></td></tr><tr><td class='label'>mode:</td><td class='ctrl'><select name='dt' onchange='this.form.submit();'><option value='0' selected='selected'>unified</option><option value='1'>ssdiff</option><option value='2'>stat only</option></select></td></tr><tr><td/><td class='ctrl'><noscript><input type='submit' value='reload'/></noscript></td></tr></table></form></div><table summary='commit info' class='commit-info'>
<tr><th>author</th><td>Linus Torvalds &lt;torvalds@linux-foundation.org&gt;</td><td class='right'>2017-01-27 12:44:32 -0800</td></tr>
<tr><th>committer</th><td>Linus Torvalds &lt;torvalds@linux-foundation.org&gt;</td><td class='right'>2017-01-27 12:44:32 -0800</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/tools/perf/Documentation/perf-inject.txt?id=3365135d43f861003555c963b309672d053a2228'>3365135d43f861003555c963b309672d053a2228</a> (<a href='/cgit.cgi/linux/net-next.git/patch/tools/perf/Documentation/perf-inject.txt?id=3365135d43f861003555c963b309672d053a2228'>patch</a>)</td></tr>
<tr><th>tree</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/tree/?id=3365135d43f861003555c963b309672d053a2228'>bfef4adec5da118bf1b3df7e5cff74f45af9e02d</a> /<a href='/cgit.cgi/linux/net-next.git/tree/tools/perf/Documentation/perf-inject.txt?id=3365135d43f861003555c963b309672d053a2228'>tools/perf/Documentation/perf-inject.txt</a></td></tr>
<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/tools/perf/Documentation/perf-inject.txt?id=5906374446386fd16fe562b042429d905d231ec3'>5906374446386fd16fe562b042429d905d231ec3</a> (<a href='/cgit.cgi/linux/net-next.git/diff/tools/perf/Documentation/perf-inject.txt?id=3365135d43f861003555c963b309672d053a2228&amp;id2=5906374446386fd16fe562b042429d905d231ec3'>diff</a>)</td></tr><tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/tools/perf/Documentation/perf-inject.txt?id=e0d76fa4475ef2cf4b52d18588b8ce95153d021b'>e0d76fa4475ef2cf4b52d18588b8ce95153d021b</a> (<a href='/cgit.cgi/linux/net-next.git/diff/tools/perf/Documentation/perf-inject.txt?id=3365135d43f861003555c963b309672d053a2228&amp;id2=e0d76fa4475ef2cf4b52d18588b8ce95153d021b'>diff</a>)</td></tr></table>
<div class='commit-subject'>Merge tag 'xfs-for-linus-4.10-rc6-5' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux</div><div class='commit-msg'>Pull xfs uodates from Darrick Wong:
 "I have some more fixes this week: better input validation, corruption
  avoidance, build fixes, memory leak fixes, and a couple from Christoph
  to avoid an ENOSPC failure.

  Summary:
   - Fix race conditions in the CoW code
   - Fix some incorrect input validation checks
   - Avoid crashing fs by running out of space when freeing inodes
   - Fix toctou race wrt whether or not an inode has an attr
   - Fix build error on arm
   - Fix page refcount corruption when readahead fails
   - Don't corrupt userspace in the bmap ioctl"

* tag 'xfs-for-linus-4.10-rc6-5' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux:
  xfs: prevent quotacheck from overloading inode lru
  xfs: fix bmv_count confusion w/ shared extents
  xfs: clear _XBF_PAGES from buffers when readahead page
  xfs: extsize hints are not unlikely in xfs_bmap_btalloc
  xfs: remove racy hasattr check from attr ops
  xfs: use per-AG reservations for the finobt
  xfs: only update mount/resv fields on success in __xfs_ag_resv_init
  xfs: verify dirblocklog correctly
  xfs: fix COW writeback race
</div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?id=3365135d43f861003555c963b309672d053a2228'>Diffstat</a> (limited to 'tools/perf/Documentation/perf-inject.txt')</div><table summary='diffstat' class='diffstat'>