/*
 * Copyright (C) Sistina Software, Inc.  1997-2003 All rights reserved.
 * Copyright (C) 2004-2006 Red Hat, Inc.  All rights reserved.
 *
 * This copyrighted material is made available to anyone wishing to use,
 * modify, copy, or redistribute it subject to the terms and conditions
 * of the GNU General Public License version 2.
 */

#ifndef __DIR_DOT_H__
#define __DIR_DOT_H__

#include <linux/dcache.h>
#include <linux/crc32.h>

struct inode;
struct gfs2_inode;
struct gfs2_inum;
struct buffer_head;
struct gfs2_dirent;

struct gfs2_diradd {
	unsigned nr_blocks;
	struct gfs2_dirent *dent;
	struct buffer_head *bh;
	int save_loc;
};

extern struct inode *gfs2_dir_search(struct inode *dir,
				     const struct qstr *filename,
				     bool fail_on_exist);
extern int gfs2_dir_check(struct inode *dir, const struct qstr *filename,
			  const struct gfs2_inode *ip);
extern int gfs2_dir_add(struct inode *inode, const struct qstr *filename,
			const struct gfs2_inode *ip, struct gfs2_diradd *da);
static inline void gfs2_dir_no_add(struct gfs2_diradd *da)
{
	if (da->bh)
		brelse(da->bh);
	da->bh = NULL;
}
extern int gfs2_dir_del(struct gfs2_inode *dip, const struct dentry *dentry);
extern int gfs2_dir_read(struct inode *inode, struct dir_context *ctx,
			 struct file_ra_state *f_ra);
extern int gfs2_dir_mvino(struct gfs2_inode *dip, const struct qstr *filename,
			  const struct gfs2_inode *nip, unsigned int new_type);

extern int gfs2_dir_exhash_dealloc(struct gfs2_inode *dip);

extern int gfs2_diradd_alloc_required(struct inode *dir,
				      const struct qstr *filename,
				      struct gfs2_diradd *da);
extern int gfs2_dir_get_new_buffer(struct gfs2_inode *ip, u64 block,
				   struct buffer_head **bhp);
extern void gfs2_dir_hash_inval(struct gfs2_inode *ip);

static inline u32 gfs2_disk_hash(const char *data, int len)
{
        return crc32_le((u32)~0, data, len) ^ (u32)~0;
}


static inline void gfs2_str2qstr(struct qstr *name, const char *fname)
{
	name->name = fname;
	name->len = strlen(fname);
	name->hash = gfs2_disk_hash(name->name, name->len);
}

/* N.B. This probably ought to take inum & type as args as well */
static inline void gfs2_qstr2dirent(const struct qstr *name, u16 reclen, struct gfs2_dirent *dent)
{
	dent->de_inum.no_addr = cpu_to_be64(0);
	dent->de_inum.no_formal_ino = cpu_to_be64(0);
	dent->de_hash = cpu_to_be32(name->hash);
	dent->de_rec_len = cpu_to_be16(reclen);
	dent->de_name_len = cpu_to_be16(name->len);
	dent->de_type = cpu_to_be16(0);
	memset(dent->__pad, 0, sizeof(dent->__pad));
	memcpy(dent + 1, name->name, name->len);
}

extern struct qstr gfs2_qdot;
extern struct qstr gfs2_qdotdot;

#endif /* __DIR_DOT_H__ */
.git/commit/include?id=3541f9e8bdebce02458882b66b638d7302c1f616'>include</a></div><div class='content'><div class='cgit-panel'><b>diff options</b><form method='get'><input type='hidden' name='id' value='3541f9e8bdebce02458882b66b638d7302c1f616'/><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>Eric Dumazet &lt;edumazet@google.com&gt;</td><td class='right'>2017-02-02 08:04:56 -0800</td></tr>
<tr><th>committer</th><td>David S. Miller &lt;davem@davemloft.net&gt;</td><td class='right'>2017-02-03 11:19:34 -0500</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/include?id=3541f9e8bdebce02458882b66b638d7302c1f616'>3541f9e8bdebce02458882b66b638d7302c1f616</a> (<a href='/cgit.cgi/linux/net-next.git/patch/include?id=3541f9e8bdebce02458882b66b638d7302c1f616'>patch</a>)</td></tr>
<tr><th>tree</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/tree/?id=3541f9e8bdebce02458882b66b638d7302c1f616'>1049ef01f68f197e66fa77f18768aaf6d219f8b1</a> /<a href='/cgit.cgi/linux/net-next.git/tree/include?id=3541f9e8bdebce02458882b66b638d7302c1f616'>include</a></td></tr>
<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/include?id=ff3edc9b8efc8200c25f3a5adfb1c1de0a882dc5'>ff3edc9b8efc8200c25f3a5adfb1c1de0a882dc5</a> (<a href='/cgit.cgi/linux/net-next.git/diff/include?id=3541f9e8bdebce02458882b66b638d7302c1f616&amp;id2=ff3edc9b8efc8200c25f3a5adfb1c1de0a882dc5'>diff</a>)</td></tr></table>
<div class='commit-subject'>tcp: add tcp_mss_clamp() helper</div><div class='commit-msg'>Small cleanup factorizing code doing the TCP_MAXSEG clamping.

Signed-off-by: Eric Dumazet &lt;edumazet@google.com&gt;
Signed-off-by: David S. Miller &lt;davem@davemloft.net&gt;
</div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?id=3541f9e8bdebce02458882b66b638d7302c1f616'>Diffstat</a> (limited to 'include')</div><table summary='diffstat' class='diffstat'><tr><td class='mode'>-rw-r--r--</td><td class='upd'><a href='/cgit.cgi/linux/net-next.git/diff/include/linux/tcp.h?id=3541f9e8bdebce02458882b66b638d7302c1f616'>include/linux/tcp.h</a></td><td class='right'>9</td><td class='graph'><table summary='file diffstat' width='9%'><tr><td class='add' style='width: 100.0%;'/><td class='rem' style='width: 0.0%;'/><td class='none' style='width: 0.0%;'/></tr></table></td></tr>
</table><div class='diffstat-summary'>1 files changed, 9 insertions, 0 deletions</div><table summary='diff' class='diff'><tr><td><div class='head'>diff --git a/include/linux/tcp.h b/include/linux/tcp.h