linux-stable.git/fs/ceph/file.c, branch linux-3.16.y Linux kernel stable tree ceph: Correctly return NXIO errors from ceph_llseek 2016-11-20T01:16:59+00:00 Phil Turnbull phil.turnbull@oracle.com 2016-07-21T17:43:09+00:00 c9b756501037d100305f6ac28efc23830103b55c commit 955818cd5b6c4b58ea574ace4573e7afa4c19c1e upstream. ceph_llseek does not correctly return NXIO errors because the 'out' path always returns 'offset'. Fixes: 06222e491e66 ("fs: handle SEEK_HOLE/SEEK_DATA properly in all fs's that define their own llseek") Signed-off-by: Phil Turnbull <phil.turnbull@oracle.com> Signed-off-by: Yan, Zheng <zyan@redhat.com> [bwh: Backported to 3.16; adjust context] Signed-off-by: Ben Hutchings <ben@decadent.org.uk> 
commit 955818cd5b6c4b58ea574ace4573e7afa4c19c1e upstream.

ceph_llseek does not correctly return NXIO errors because the 'out' path
always returns 'offset'.

Fixes: 06222e491e66 ("fs: handle SEEK_HOLE/SEEK_DATA properly in all fs's that define their own llseek")
Signed-off-by: Phil Turnbull <phil.turnbull@oracle.com>
Signed-off-by: Yan, Zheng <zyan@redhat.com>
[bwh: Backported to 3.16; adjust context]
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
ceph: switch to iter_file_splice_write() 2014-06-12T04:21:12+00:00 Al Viro viro@zeniv.linux.org.uk 2014-04-05T08:40:12+00:00 3551dd79ac1d5bf525a5cd134988e8b72f03314a Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
ceph: switch to ->write_iter() 2014-05-06T21:39:43+00:00 Al Viro viro@zeniv.linux.org.uk 2014-04-04T03:09:01+00:00 4908b822b300d2d7ad0341203181cfbd8a91092a Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
ceph_sync_direct_write: stop poking into iov_iter guts 2014-05-06T21:39:43+00:00 Al Viro viro@zeniv.linux.org.uk 2014-04-04T02:58:25+00:00 64c3131161c196ef8e5da8f949334c451fa3521d all needed primitives are there... Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> 
all needed primitives are there...

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
ceph_sync_read: stop poking into iov_iter guts 2014-05-06T21:39:42+00:00 Al Viro viro@zeniv.linux.org.uk 2014-04-04T02:31:22+00:00 2b777c9dd9ebbb2f8b6818d454cc5e6d7c1e3c8b Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
ceph: switch to ->read_iter() 2014-05-06T21:38:00+00:00 Al Viro viro@zeniv.linux.org.uk 2014-04-03T00:28:01+00:00 3644424dc6309439c4c8d97590cdac4100376255 Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
start adding the tag to iov_iter 2014-05-06T21:32:49+00:00 Al Viro viro@zeniv.linux.org.uk 2014-03-06T00:28:09+00:00 71d8e532b1549a478e6a6a8a44f309d050294d00 For now, just use the same thing we pass to ->direct_IO() - it's all iovec-based at the moment. Pass it explicitly to iov_iter_init() and account for kvec vs. iovec in there, by the same kludge NFS ->direct_IO() uses. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> 
For now, just use the same thing we pass to ->direct_IO() - it's all
iovec-based at the moment.  Pass it explicitly to iov_iter_init() and
account for kvec vs. iovec in there, by the same kludge NFS ->direct_IO()
uses.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
new helper: generic_file_read_iter() 2014-05-06T21:32:49+00:00 Al Viro viro@zeniv.linux.org.uk 2014-03-06T03:53:04+00:00 ed978a811ec528dbe40243605c3afab55892f722 iov_iter-using variant of generic_file_aio_read(). Some callers converted. Note that it's still not quite there for use as ->read_iter() - we depend on having zero iter->iov_offset in O_DIRECT case. Fortunately, that's true for all converted callers (and for generic_file_aio_read() itself). Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> 
iov_iter-using variant of generic_file_aio_read().  Some callers
converted.  Note that it's still not quite there for use as ->read_iter() -
we depend on having zero iter->iov_offset in O_DIRECT case.  Fortunately,
that's true for all converted callers (and for generic_file_aio_read() itself).

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
ceph_aio_read(): keep iov_iter across retries 2014-05-06T21:32:48+00:00 Al Viro viro@zeniv.linux.org.uk 2014-03-06T00:22:23+00:00 05bb2e0bc77cb005248be318d2b0ba369b8bbab3 Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
kill generic_segment_checks() 2014-05-06T21:32:43+00:00 Al Viro viro@zeniv.linux.org.uk 2014-03-04T20:24:06+00:00 cb66a7a1f149ff705fa37cad6d1252b046e0ad4f all callers of ->aio_read() and ->aio_write() have iov/nr_segs already checked - generic_segment_checks() done after that is just an odd way to spell iov_length(). Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> 
all callers of ->aio_read() and ->aio_write() have iov/nr_segs already
checked - generic_segment_checks() done after that is just an odd way
to spell iov_length().

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>