#include <linux/fsnotify_backend.h>
#include <linux/path.h>
#include <linux/slab.h>

extern struct kmem_cache *fanotify_event_cachep;
extern struct kmem_cache *fanotify_perm_event_cachep;

/*
 * Structure for normal fanotify events. It gets allocated in
 * fanotify_handle_event() and freed when the information is retrieved by
 * userspace
 */
struct fanotify_event_info {
	struct fsnotify_event fse;
	/*
	 * We hold ref to this path so it may be dereferenced at any point
	 * during this object's lifetime
	 */
	struct path path;
	struct pid *tgid;
};

#ifdef CONFIG_FANOTIFY_ACCESS_PERMISSIONS
/*
 * Structure for permission fanotify events. It gets allocated and freed in
 * fanotify_handle_event() since we wait there for user response. When the
 * information is retrieved by userspace the structure is moved from
 * group->notification_list to group->fanotify_data.access_list to wait for
 * user response.
 */
struct fanotify_perm_event_info {
	struct fanotify_event_info fae;
	int response;	/* userspace answer to question */
	int fd;		/* fd we passed to userspace for this event */
};

static inline struct fanotify_perm_event_info *
FANOTIFY_PE(struct fsnotify_event *fse)
{
	return container_of(fse, struct fanotify_perm_event_info, fae.fse);
}
#endif

static inline struct fanotify_event_info *FANOTIFY_E(struct fsnotify_event *fse)
{
	return container_of(fse, struct fanotify_event_info, fse);
}

struct fanotify_event_info *fanotify_alloc_event(struct inode *inode, u32 mask,
						 const struct path *path);
r></table>
<table class='tabs'><tr><td>
<a href='/cgit.cgi/linux/net-next.git/?h=nds-private-remove'>summary</a><a href='/cgit.cgi/linux/net-next.git/refs/?h=nds-private-remove&amp;id=ce1ca7d2d140a1f4aaffd297ac487f246963dd2f'>refs</a><a href='/cgit.cgi/linux/net-next.git/log/net/ipv6/tcpv6_offload.c?h=nds-private-remove'>log</a><a href='/cgit.cgi/linux/net-next.git/tree/net/ipv6/tcpv6_offload.c?h=nds-private-remove&amp;id=ce1ca7d2d140a1f4aaffd297ac487f246963dd2f'>tree</a><a class='active' href='/cgit.cgi/linux/net-next.git/commit/net/ipv6/tcpv6_offload.c?h=nds-private-remove&amp;id=ce1ca7d2d140a1f4aaffd297ac487f246963dd2f'>commit</a><a href='/cgit.cgi/linux/net-next.git/diff/net/ipv6/tcpv6_offload.c?h=nds-private-remove&amp;id=ce1ca7d2d140a1f4aaffd297ac487f246963dd2f'>diff</a></td><td class='form'><form class='right' method='get' action='/cgit.cgi/linux/net-next.git/log/net/ipv6/tcpv6_offload.c'>
<input type='hidden' name='h' value='nds-private-remove'/><input type='hidden' name='id' value='ce1ca7d2d140a1f4aaffd297ac487f246963dd2f'/><select name='qt'>
<option value='grep'>log msg</option>
<option value='author'>author</option>
<option value='committer'>committer</option>
<option value='range'>range</option>
</select>
<input class='txt' type='search' size='10' name='q' value=''/>
<input type='submit' value='search'/>
</form>
</td></tr></table>
<div class='path'>path: <a href='/cgit.cgi/linux/net-next.git/commit/?h=nds-private-remove&amp;id=ce1ca7d2d140a1f4aaffd297ac487f246963dd2f'>root</a>/<a href='/cgit.cgi/linux/net-next.git/commit/net?h=nds-private-remove&amp;id=ce1ca7d2d140a1f4aaffd297ac487f246963dd2f'>net</a>/<a href='/cgit.cgi/linux/net-next.git/commit/net/ipv6?h=nds-private-remove&amp;id=ce1ca7d2d140a1f4aaffd297ac487f246963dd2f'>ipv6</a>/<a href='/cgit.cgi/linux/net-next.git/commit/net/ipv6/tcpv6_offload.c?h=nds-private-remove&amp;id=ce1ca7d2d140a1f4aaffd297ac487f246963dd2f'>tcpv6_offload.c</a></div><div class='content'><div class='cgit-panel'><b>diff options</b><form method='get'><input type='hidden' name='h' value='nds-private-remove'/><input type='hidden' name='id' value='ce1ca7d2d140a1f4aaffd297ac487f246963dd2f'/><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>Sriharsha Basavapatna &lt;sriharsha.basavapatna@broadcom.com&gt;</td><td class='right'>2017-01-09 16:00:44 +0530</td></tr>
<tr><th>committer</th><td>J. Bruce Fields &lt;bfields@redhat.com&gt;</td><td class='right'>2017-01-12 16:14:47 -0500</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/net/ipv6/tcpv6_offload.c?h=nds-private-remove&amp;id=ce1ca7d2d140a1f4aaffd297ac487f246963dd2f'>ce1ca7d2d140a1f4aaffd297ac487f246963dd2f</a> (<a href='/cgit.cgi/linux/net-next.git/patch/net/ipv6/tcpv6_offload.c?id=ce1ca7d2d140a1f4aaffd297ac487f246963dd2f'>patch</a>)</td></tr>
<tr><th>tree</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/tree/?h=nds-private-remove&amp;id=ce1ca7d2d140a1f4aaffd297ac487f246963dd2f'>5aeab5e0cb6ef404c894a18251588278b9432a2c</a> /<a href='/cgit.cgi/linux/net-next.git/tree/net/ipv6/tcpv6_offload.c?h=nds-private-remove&amp;id=ce1ca7d2d140a1f4aaffd297ac487f246963dd2f'>net/ipv6/tcpv6_offload.c</a></td></tr>
<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/net/ipv6/tcpv6_offload.c?h=nds-private-remove&amp;id=546125d1614264d26080817d0c8cddb9b25081fa'>546125d1614264d26080817d0c8cddb9b25081fa</a> (<a href='/cgit.cgi/linux/net-next.git/diff/net/ipv6/tcpv6_offload.c?h=nds-private-remove&amp;id=ce1ca7d2d140a1f4aaffd297ac487f246963dd2f&amp;id2=546125d1614264d26080817d0c8cddb9b25081fa'>diff</a>)</td></tr></table>
<div class='commit-subject'>svcrdma: avoid duplicate dma unmapping during error recovery</div><div class='commit-msg'>In rdma_read_chunk_frmr() when ib_post_send() fails, the error code path
invokes ib_dma_unmap_sg() to unmap the sg list. It then invokes
svc_rdma_put_frmr() which in turn tries to unmap the same sg list through
ib_dma_unmap_sg() again. This second unmap is invalid and could lead to
problems when the iova being unmapped is subsequently reused. Remove
the call to unmap in rdma_read_chunk_frmr() and let svc_rdma_put_frmr()
handle it.

Fixes: 412a15c0fe53 ("svcrdma: Port to new memory registration API")
Cc: stable@vger.kernel.org
Signed-off-by: Sriharsha Basavapatna &lt;sriharsha.basavapatna@broadcom.com&gt;
Reviewed-by: Chuck Lever &lt;chuck.lever@oracle.com&gt;
Reviewed-by: Yuval Shaia &lt;yuval.shaia@oracle.com&gt;
Signed-off-by: J. Bruce Fields &lt;bfields@redhat.com&gt;
</div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?h=nds-private-remove&amp;id=ce1ca7d2d140a1f4aaffd297ac487f246963dd2f'>Diffstat</a> (limited to 'net/ipv6/tcpv6_offload.c')</div><table summary='diffstat' class='diffstat'>