/*
 * 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 __BMAP_DOT_H__
#define __BMAP_DOT_H__

#include "inode.h"

struct inode;
struct gfs2_inode;
struct page;


/**
 * gfs2_write_calc_reserv - calculate number of blocks needed to write to a file
 * @ip: the file
 * @len: the number of bytes to be written to the file
 * @data_blocks: returns the number of data blocks required
 * @ind_blocks: returns the number of indirect blocks required
 *
 */

static inline void gfs2_write_calc_reserv(const struct gfs2_inode *ip,
					  unsigned int len,
					  unsigned int *data_blocks,
					  unsigned int *ind_blocks)
{
	const struct gfs2_sbd *sdp = GFS2_SB(&ip->i_inode);
	unsigned int tmp;

	BUG_ON(gfs2_is_dir(ip));
	*data_blocks = (len >> sdp->sd_sb.sb_bsize_shift) + 3;
	*ind_blocks = 3 * (sdp->sd_max_height - 1);

	for (tmp = *data_blocks; tmp > sdp->sd_diptrs;) {
		tmp = DIV_ROUND_UP(tmp, sdp->sd_inptrs);
		*ind_blocks += tmp;
	}
}

extern int gfs2_unstuff_dinode(struct gfs2_inode *ip, struct page *page);
extern int gfs2_block_map(struct inode *inode, sector_t lblock,
			  struct buffer_head *bh, int create);
extern int gfs2_extent_map(struct inode *inode, u64 lblock, int *new,
			   u64 *dblock, unsigned *extlen);
extern int gfs2_setattr_size(struct inode *inode, u64 size);
extern void gfs2_trim_blocks(struct inode *inode);
extern int gfs2_truncatei_resume(struct gfs2_inode *ip);
extern int gfs2_file_dealloc(struct gfs2_inode *ip);
extern int gfs2_write_alloc_required(struct gfs2_inode *ip, u64 offset,
				     unsigned int len);
extern int gfs2_map_journal_extents(struct gfs2_sbd *sdp, struct gfs2_jdesc *jd);
extern void gfs2_free_journal_extents(struct gfs2_jdesc *jd);

#endif /* __BMAP_DOT_H__ */
d=9da96f99f15169b8bf77a1f27ed6d926f82ea59f'>diff</a></td><td class='form'><form class='right' method='get' action='/cgit.cgi/linux/net-next.git/log/'>
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<tr><th>author</th><td>Linus Torvalds &lt;torvalds@linux-foundation.org&gt;</td><td class='right'>2017-01-18 10:45:22 -0800</td></tr>
<tr><th>committer</th><td>Linus Torvalds &lt;torvalds@linux-foundation.org&gt;</td><td class='right'>2017-01-18 10:45:22 -0800</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/?id=9da96f99f15169b8bf77a1f27ed6d926f82ea59f'>9da96f99f15169b8bf77a1f27ed6d926f82ea59f</a> (<a href='/cgit.cgi/linux/net-next.git/patch/?id=9da96f99f15169b8bf77a1f27ed6d926f82ea59f'>patch</a>)</td></tr>
<tr><th>tree</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/tree/?id=9da96f99f15169b8bf77a1f27ed6d926f82ea59f'>1943e686fef96e694b7660c775e2194263a69801</a></td></tr>
<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/?id=0aa0313f9d576affd7747cc3f179feb097d28990'>0aa0313f9d576affd7747cc3f179feb097d28990</a> (<a href='/cgit.cgi/linux/net-next.git/diff/?id=9da96f99f15169b8bf77a1f27ed6d926f82ea59f&amp;id2=0aa0313f9d576affd7747cc3f179feb097d28990'>diff</a>)</td></tr><tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/?id=31f5260a7653e6042ac28578db1c61e84f2d7898'>31f5260a7653e6042ac28578db1c61e84f2d7898</a> (<a href='/cgit.cgi/linux/net-next.git/diff/?id=9da96f99f15169b8bf77a1f27ed6d926f82ea59f&amp;id2=31f5260a7653e6042ac28578db1c61e84f2d7898'>diff</a>)</td></tr></table>
<div class='commit-subject'>Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip</div><div class='commit-msg'>Pull perf fixes from Ingo Molnar:
 "An Intel PMU driver hotplug fix and three 'perf probe' tooling fixes"

* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  perf/x86/intel: Handle exclusive threadid correctly on CPU hotplug
  perf probe: Fix to probe on gcc generated functions in modules
  perf probe: Add error checks to offline probe post-processing
  perf probe: Fix to show correct locations for events on modules
</div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?id=9da96f99f15169b8bf77a1f27ed6d926f82ea59f'>Diffstat</a></div><table summary='diffstat' class='diffstat'>