/*
 * Copyright (C) 2016 Oracle.  All Rights Reserved.
 *
 * Author: Darrick J. Wong <darrick.wong@oracle.com>
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it would be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write the Free Software Foundation,
 * Inc.,  51 Franklin St, Fifth Floor, Boston, MA  02110-1301, USA.
 */
#ifndef __XFS_REFCOUNT_H__
#define __XFS_REFCOUNT_H__

extern int xfs_refcount_lookup_le(struct xfs_btree_cur *cur,
		xfs_agblock_t bno, int *stat);
extern int xfs_refcount_lookup_ge(struct xfs_btree_cur *cur,
		xfs_agblock_t bno, int *stat);
extern int xfs_refcount_get_rec(struct xfs_btree_cur *cur,
		struct xfs_refcount_irec *irec, int *stat);

enum xfs_refcount_intent_type {
	XFS_REFCOUNT_INCREASE = 1,
	XFS_REFCOUNT_DECREASE,
	XFS_REFCOUNT_ALLOC_COW,
	XFS_REFCOUNT_FREE_COW,
};

struct xfs_refcount_intent {
	struct list_head			ri_list;
	enum xfs_refcount_intent_type		ri_type;
	xfs_fsblock_t				ri_startblock;
	xfs_extlen_t				ri_blockcount;
};

extern int xfs_refcount_increase_extent(struct xfs_mount *mp,
		struct xfs_defer_ops *dfops, struct xfs_bmbt_irec *irec);
extern int xfs_refcount_decrease_extent(struct xfs_mount *mp,
		struct xfs_defer_ops *dfops, struct xfs_bmbt_irec *irec);

extern void xfs_refcount_finish_one_cleanup(struct xfs_trans *tp,
		struct xfs_btree_cur *rcur, int error);
extern int xfs_refcount_finish_one(struct xfs_trans *tp,
		struct xfs_defer_ops *dfops, enum xfs_refcount_intent_type type,
		xfs_fsblock_t startblock, xfs_extlen_t blockcount,
		xfs_fsblock_t *new_fsb, xfs_extlen_t *new_len,
		struct xfs_btree_cur **pcur);

extern int xfs_refcount_find_shared(struct xfs_btree_cur *cur,
		xfs_agblock_t agbno, xfs_extlen_t aglen, xfs_agblock_t *fbno,
		xfs_extlen_t *flen, bool find_end_of_shared);

extern int xfs_refcount_alloc_cow_extent(struct xfs_mount *mp,
		struct xfs_defer_ops *dfops, xfs_fsblock_t fsb,
		xfs_extlen_t len);
extern int xfs_refcount_free_cow_extent(struct xfs_mount *mp,
		struct xfs_defer_ops *dfops, xfs_fsblock_t fsb,
		xfs_extlen_t len);
extern int xfs_refcount_recover_cow_leftovers(struct xfs_mount *mp,
		xfs_agnumber_t agno);

#endif	/* __XFS_REFCOUNT_H__ */
'submit' value='search'/>
</form>
</td></tr></table>
<div class='path'>path: <a href='/cgit.cgi/linux/net-next.git/commit/?id=3277953de2f31dd03c6375e9a9f680ac37fc9d27'>root</a>/<a href='/cgit.cgi/linux/net-next.git/commit/include?id=3277953de2f31dd03c6375e9a9f680ac37fc9d27'>include</a>/<a href='/cgit.cgi/linux/net-next.git/commit/include/trace?id=3277953de2f31dd03c6375e9a9f680ac37fc9d27'>trace</a>/<a href='/cgit.cgi/linux/net-next.git/commit/include/trace/events?id=3277953de2f31dd03c6375e9a9f680ac37fc9d27'>events</a>/<a href='/cgit.cgi/linux/net-next.git/commit/include/trace/events/sunvnet.h?id=3277953de2f31dd03c6375e9a9f680ac37fc9d27'>sunvnet.h</a></div><div class='content'><div class='cgit-panel'><b>diff options</b><form method='get'><input type='hidden' name='id' value='3277953de2f31dd03c6375e9a9f680ac37fc9d27'/><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>zhong jiang &lt;zhongjiang@huawei.com&gt;</td><td class='right'>2017-01-24 15:18:52 -0800</td></tr>
<tr><th>committer</th><td>Linus Torvalds &lt;torvalds@linux-foundation.org&gt;</td><td class='right'>2017-01-24 16:26:14 -0800</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/include/trace/events/sunvnet.h?id=3277953de2f31dd03c6375e9a9f680ac37fc9d27'>3277953de2f31dd03c6375e9a9f680ac37fc9d27</a> (<a href='/cgit.cgi/linux/net-next.git/patch/include/trace/events/sunvnet.h?id=3277953de2f31dd03c6375e9a9f680ac37fc9d27'>patch</a>)</td></tr>
<tr><th>tree</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/tree/?id=3277953de2f31dd03c6375e9a9f680ac37fc9d27'>6ba22924faa1b82ef2f0277db10a3f5abdc44157</a> /<a href='/cgit.cgi/linux/net-next.git/tree/include/trace/events/sunvnet.h?id=3277953de2f31dd03c6375e9a9f680ac37fc9d27'>include/trace/events/sunvnet.h</a></td></tr>
<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/include/trace/events/sunvnet.h?id=3705ccfdd1e8b539225ce20e3925a945cc788d67'>3705ccfdd1e8b539225ce20e3925a945cc788d67</a> (<a href='/cgit.cgi/linux/net-next.git/diff/include/trace/events/sunvnet.h?id=3277953de2f31dd03c6375e9a9f680ac37fc9d27&amp;id2=3705ccfdd1e8b539225ce20e3925a945cc788d67'>diff</a>)</td></tr></table>
<div class='commit-subject'>mm: do not export ioremap_page_range symbol for external module</div><div class='commit-msg'>Recently, I've found cases in which ioremap_page_range was used
incorrectly, in external modules, leading to crashes.  This can be
partly attributed to the fact that ioremap_page_range is lower-level,
with fewer protections, as compared to the other functions that an
external module would typically call.  Those include:

     ioremap_cache
     ioremap_nocache
     ioremap_prot
     ioremap_uc
     ioremap_wc
     ioremap_wt

...each of which wraps __ioremap_caller, which in turn provides a safer
way to achieve the mapping.

Therefore, stop EXPORT-ing ioremap_page_range.

Link: http://lkml.kernel.org/r/1485173220-29010-1-git-send-email-zhongjiang@huawei.com
Signed-off-by: zhong jiang &lt;zhongjiang@huawei.com&gt;
Reviewed-by: John Hubbard &lt;jhubbard@nvidia.com&gt;
Suggested-by: John Hubbard &lt;jhubbard@nvidia.com&gt;
Acked-by: Michal Hocko &lt;mhocko@suse.com&gt;
Signed-off-by: Andrew Morton &lt;akpm@linux-foundation.org&gt;
Signed-off-by: Linus Torvalds &lt;torvalds@linux-foundation.org&gt;
</div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?id=3277953de2f31dd03c6375e9a9f680ac37fc9d27'>Diffstat</a> (limited to 'include/trace/events/sunvnet.h')</div><table summary='diffstat' class='diffstat'>