/*
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to
 * deal in the Software without restriction, including without limitation the
 * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
 * sell copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
 * DEALINGS IN THE SOFTWARE.
 */

#ifndef __XEN_PUBLIC_HVM_HVM_OP_H__
#define __XEN_PUBLIC_HVM_HVM_OP_H__

/* Get/set subcommands: the second argument of the hypercall is a
 * pointer to a xen_hvm_param struct. */
#define HVMOP_set_param           0
#define HVMOP_get_param           1
struct xen_hvm_param {
    domid_t  domid;    /* IN */
    uint32_t index;    /* IN */
    uint64_t value;    /* IN/OUT */
};
DEFINE_GUEST_HANDLE_STRUCT(xen_hvm_param);

/* Hint from PV drivers for pagetable destruction. */
#define HVMOP_pagetable_dying       9
struct xen_hvm_pagetable_dying {
    /* Domain with a pagetable about to be destroyed. */
    domid_t  domid;
    /* guest physical address of the toplevel pagetable dying */
    aligned_u64 gpa;
};
typedef struct xen_hvm_pagetable_dying xen_hvm_pagetable_dying_t;
DEFINE_GUEST_HANDLE_STRUCT(xen_hvm_pagetable_dying_t);
 
enum hvmmem_type_t {
    HVMMEM_ram_rw,             /* Normal read/write guest RAM */
    HVMMEM_ram_ro,             /* Read-only; writes are discarded */
    HVMMEM_mmio_dm,            /* Reads and write go to the device model */
};

#define HVMOP_get_mem_type    15
/* Return hvmmem_type_t for the specified pfn. */
struct xen_hvm_get_mem_type {
    /* Domain to be queried. */
    domid_t domid;
    /* OUT variable. */
    uint16_t mem_type;
    uint16_t pad[2]; /* align next field on 8-byte boundary */
    /* IN variable. */
    uint64_t pfn;
};
DEFINE_GUEST_HANDLE_STRUCT(xen_hvm_get_mem_type);

#endif /* __XEN_PUBLIC_HVM_HVM_OP_H__ */
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<div class='path'>path: <a href='/cgit.cgi/linux/net-next.git/commit/?id=81ddd8c0c5e1cb41184d66567140cb48c53eb3d1'>root</a>/<a href='/cgit.cgi/linux/net-next.git/commit/fs?id=81ddd8c0c5e1cb41184d66567140cb48c53eb3d1'>fs</a>/<a href='/cgit.cgi/linux/net-next.git/commit/fs/xfs?id=81ddd8c0c5e1cb41184d66567140cb48c53eb3d1'>xfs</a>/<a href='/cgit.cgi/linux/net-next.git/commit/fs/xfs/libxfs?id=81ddd8c0c5e1cb41184d66567140cb48c53eb3d1'>libxfs</a>/<a href='/cgit.cgi/linux/net-next.git/commit/fs/xfs/libxfs/xfs_btree.c?id=81ddd8c0c5e1cb41184d66567140cb48c53eb3d1'>xfs_btree.c</a></div><div class='content'><div class='cgit-panel'><b>diff options</b><form method='get'><input type='hidden' name='id' value='81ddd8c0c5e1cb41184d66567140cb48c53eb3d1'/><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>Rabin Vincent &lt;rabinv@axis.com&gt;</td><td class='right'>2017-01-13 15:00:16 +0100</td></tr>
<tr><th>committer</th><td>Steve French &lt;smfrench@gmail.com&gt;</td><td class='right'>2017-01-14 14:58:29 -0600</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/fs/xfs/libxfs/xfs_btree.c?id=81ddd8c0c5e1cb41184d66567140cb48c53eb3d1'>81ddd8c0c5e1cb41184d66567140cb48c53eb3d1</a> (<a href='/cgit.cgi/linux/net-next.git/patch/fs/xfs/libxfs/xfs_btree.c?id=81ddd8c0c5e1cb41184d66567140cb48c53eb3d1'>patch</a>)</td></tr>
<tr><th>tree</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/tree/?id=81ddd8c0c5e1cb41184d66567140cb48c53eb3d1'>5775397665161f633952a13537df36df682f7218</a> /<a href='/cgit.cgi/linux/net-next.git/tree/fs/xfs/libxfs/xfs_btree.c?id=81ddd8c0c5e1cb41184d66567140cb48c53eb3d1'>fs/xfs/libxfs/xfs_btree.c</a></td></tr>
<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/fs/xfs/libxfs/xfs_btree.c?id=2eabb8b8d68bc9c7779ba8b04bec8d4f8baed0bc'>2eabb8b8d68bc9c7779ba8b04bec8d4f8baed0bc</a> (<a href='/cgit.cgi/linux/net-next.git/diff/fs/xfs/libxfs/xfs_btree.c?id=81ddd8c0c5e1cb41184d66567140cb48c53eb3d1&amp;id2=2eabb8b8d68bc9c7779ba8b04bec8d4f8baed0bc'>diff</a>)</td></tr></table>
<div class='commit-subject'>cifs: initialize file_info_lock</div><div class='commit-msg'>Reviewed-by: Jeff Layton &lt;jlayton@redhat.com&gt;
CC: Stable &lt;stable@vger.kernel.org&gt;

file_info_lock is not initalized in initiate_cifs_search(), leading to the
following splat after a simple "mount.cifs ... dir &amp;&amp; ls dir/":

 BUG: spinlock bad magic on CPU#0, ls/486
  lock: 0xffff880009301110, .magic: 00000000, .owner: &lt;none&gt;/-1, .owner_cpu: 0
 CPU: 0 PID: 486 Comm: ls Not tainted 4.9.0 #27
 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996)
  ffffc900042f3db0 ffffffff81327533 0000000000000000 ffff880009301110
  ffffc900042f3dd0 ffffffff810baf75 ffff880009301110 ffffffff817ae077
  ffffc900042f3df0 ffffffff810baff6 ffff880009301110 ffff880008d69900
 Call Trace:
  [&lt;ffffffff81327533&gt;] dump_stack+0x65/0x92
  [&lt;ffffffff810baf75&gt;] spin_dump+0x85/0xe0
  [&lt;ffffffff810baff6&gt;] spin_bug+0x26/0x30
  [&lt;ffffffff810bb159&gt;] do_raw_spin_lock+0xe9/0x130
  [&lt;ffffffff8159ad2f&gt;] _raw_spin_lock+0x1f/0x30
  [&lt;ffffffff8127e50d&gt;] cifs_closedir+0x4d/0x100
  [&lt;ffffffff81181cfd&gt;] __fput+0x5d/0x160
  [&lt;ffffffff81181e3e&gt;] ____fput+0xe/0x10
  [&lt;ffffffff8109410e&gt;] task_work_run+0x7e/0xa0
  [&lt;ffffffff81002512&gt;] exit_to_usermode_loop+0x92/0xa0
  [&lt;ffffffff810026f9&gt;] syscall_return_slowpath+0x49/0x50
  [&lt;ffffffff8159b484&gt;] entry_SYSCALL_64_fastpath+0xa7/0xa9

Fixes: 3afca265b5f53a0 ("Clarify locking of cifs file and tcon structures and make more granular")
Signed-off-by: Rabin Vincent &lt;rabinv@axis.com&gt;
Signed-off-by: Steve French &lt;smfrench@gmail.com&gt;
</div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?id=81ddd8c0c5e1cb41184d66567140cb48c53eb3d1'>Diffstat</a> (limited to 'fs/xfs/libxfs/xfs_btree.c')</div><table summary='diffstat' class='diffstat'>