Ilya Dryomov fc218544fb ceph: fix iov_iter issues in ceph_direct_read_write() ... dio_get_pagev_size() and dio_get_pages_alloc() introduced in commit b5b98989dc ("ceph: combine as many iovec as possile into one OSD request") assume that the passed iov_iter is ITER_IOVEC. This isn't the case with splice where it ends up poking into the guts of ITER_BVEC or ITER_PIPE iterators, causing lockups and crashes easily reproduced with generic/095. Rather than trying to figure out gap alignment and stuff pages into a page vector, add a helper for going from iov_iter to a bio_vec array and make use of the new CEPH_OSD_DATA_TYPE_BVECS code. Fixes: b5b98989dc ("ceph: combine as many iovec as possile into one OSD request") Link: http://tracker.ceph.com/issues/18130 Signed-off-by: Ilya Dryomov <idryomov@gmail.com> Reviewed-by: Jeff Layton <jlayton@redhat.com> Reviewed-by: "Yan, Zheng" <zyan@redhat.com> Tested-by: Luis Henriques <lhenriques@suse.com>		2018-05-10 10:15:12 +02:00
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acl.c
addr.c
cache.c
cache.h
caps.c
ceph_frag.c
debugfs.c
dir.c
export.c
file.c	ceph: fix iov_iter issues in ceph_direct_read_write()	2018-05-10 10:15:12 +02:00
inode.c
ioctl.c
ioctl.h
Kconfig
locks.c
Makefile
mds_client.c
mds_client.h
mdsmap.c
quota.c
snap.c
strings.c
super.c
super.h
xattr.c