/* * Omnivision OV2659 CMOS Image Sensor driver * * Copyright (C) 2015 Texas Instruments, Inc. * * Benoit Parrot * Lad, Prabhakar * * This program is free software; you may redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; version 2 of the License. * * 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 OV2659_H #define OV2659_H /** * struct ov2659_platform_data - ov2659 driver platform data * @link_frequency: target pixel clock frequency */ struct ov2659_platform_data { s64 link_frequency; }; #endif /* OV2659_H */ master net-next plumbingsTobias Klauser
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authorJeff Layton <jlayton@redhat.com>2016-11-30 15:56:46 -0500
committerIlya Dryomov <idryomov@gmail.com>2016-12-08 14:32:16 +0100
commitc3f4688a08fd86f1bf8e055724c84b7a40a09733 (patch)
treeebcb5ab3dc9517a0a644a16421dcfc90b5b28454
parent3e5de27e940d00d8d504dfb96625fb654f641509 (diff)
ceph: don't set req->r_locked_dir in ceph_d_revalidate
This function sets req->r_locked_dir which is supposed to indicate to ceph_fill_trace that the parent's i_rwsem is locked for write. Unfortunately, there is no guarantee that the dir will be locked when d_revalidate is called, so we really don't want ceph_fill_trace to do any dcache manipulation from this context. Clear req->r_locked_dir since it's clearly not safe to do that. What we really want to know with d_revalidate is whether the dentry still points to the same inode. ceph_fill_trace installs a pointer to the inode in req->r_target_inode, so we can just compare that to d_inode(dentry) to see if it's the same one after the lookup. Also, since we aren't generally interested in the parent here, we can switch to using a GETATTR to hint that to the MDS, which also means that we only need to reserve one cap. Finally, just remove the d_unhashed check. That's really outside the purview of a filesystem's d_revalidate. If the thing became unhashed while we're checking it, then that's up to the VFS to handle anyway. Fixes: 200fd27c8fa2 ("ceph: use lookup request to revalidate dentry") Link: http://tracker.ceph.com/issues/18041 Reported-by: Donatas Abraitis <donatas.abraitis@gmail.com> Signed-off-by: Jeff Layton <jlayton@redhat.com> Reviewed-by: "Yan, Zheng" <zyan@redhat.com> Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
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