redonkable/alistair23-linux
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alistair23-linux/fs/cifs
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Pavel Shilovsky 9c25702cee CIFS: Fix splice read for non-cached files 
Currently we call copy_page_to_iter() for uncached reading into a pipe.
This is wrong because it treats pages as VFS cache pages and copies references
rather than actual data. When we are trying to read from the pipe we end up
calling page_cache_pipe_buf_confirm() which returns -ENODATA. This error
is translated into 0 which is returned to a user.

This issue is reproduced by running xfs-tests suite (generic test #249)
against mount points with "cache=none". Fix it by mapping pages manually
and calling copy_to_iter() that copies data into the pipe.

Cc: Stable <stable@vger.kernel.org>
Signed-off-by: Pavel Shilovsky <pshilov@microsoft.com>
2017-02-01 16:46:34 -06:00
..
asn1.c
cache.c
cifs_debug.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
cifs_debug.h lib: update single-char callers of strtobool() 2016-03-17 15:09:34 -07:00
cifs_dfs_ref.c cifs: remove any preceding delimiter from prefix_path 2016-05-17 14:09:33 -05:00
cifs_fs_sb.h CIFS: Add new mount option to set owner uid and gid from special sids in acl 2016-10-14 14:22:01 -05:00
cifs_ioctl.h Enable previous version support 2016-10-13 19:48:11 -05:00
cifs_spnego.c cifs: Create dedicated keyring for spnego operations 2016-05-19 21:56:30 -05:00
cifs_spnego.h
cifs_unicode.c File names with trailing period or space need special case conversion 2016-06-24 12:05:52 -05:00
cifs_unicode.h File names with trailing period or space need special case conversion 2016-06-24 12:05:52 -05:00
cifs_uniupr.h
cifsacl.c CIFS: Retrieve uid and gid from special sid if enabled 2016-10-14 14:22:16 -05:00
cifsacl.h
cifsencrypt.c Fix default behaviour for empty domains and add domainauto option 2016-12-15 01:42:38 -06:00
cifsfs.c cifs: Add soft dependencies 2017-02-01 16:46:34 -06:00
cifsfs.h cifs: don't use ->d_time 2016-09-16 12:44:21 +02:00
cifsglob.h Fix default behaviour for empty domains and add domainauto option 2016-12-15 01:42:38 -06:00
cifspdu.h Add way to query server fs info for smb3 2015-08-20 10:19:25 -05:00
cifsproto.h cifs_get_root shouldn't use path with tree name 2016-12-15 01:42:54 -06:00
cifssmb.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
connect.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
dir.c cifs_get_root shouldn't use path with tree name 2016-12-15 01:42:54 -06:00
dns_resolve.c
dns_resolve.h
export.c
file.c CIFS: Fix splice read for non-cached files 2017-02-01 16:46:34 -06:00
fscache.c NFS client updates for Linux 3.13 2013-11-08 05:57:46 +09:00
fscache.h CIFS: FS-Cache: Uncache unread pages in cifs_readpages() before freeing them 2013-09-18 10:17:03 -05:00
inode.c Merge remote-tracking branch 'jk/vfs' into work.misc 2016-10-08 11:06:08 -04:00
ioctl.c CIFS: Decrease verbosity of ioctl call 2016-12-02 16:04:33 -08:00
Kconfig cifs: Only select the required crypto modules 2017-02-01 16:46:34 -06:00
link.c cifs: use %16phN for formatting md5 sum 2016-12-15 00:21:37 -06:00
Makefile cifs: Switch to generic xattr handlers 2016-04-23 15:33:03 -04:00
misc.c Clarify locking of cifs file and tcon structures and make more granular 2016-10-12 12:08:32 -05:00
netmisc.c Fix signed/unsigned pointer warning 2014-12-14 14:55:57 -06:00
nterr.c
nterr.h
ntlmssp.h cifs: dynamic allocation of ntlmssp blob 2016-06-23 23:45:07 -05:00
readdir.c cifs: initialize file_info_lock 2017-01-14 14:58:29 -06:00
rfc1002pdu.h
sess.c cifs: check hash calculating succeeded 2016-06-23 23:45:17 -05:00
smb1ops.c Fix that several functions handle incorrect value of mapchars 2015-05-10 19:56:35 -05:00
smb2file.c CIFS: Fix a possible memory corruption in push locks 2016-12-05 11:08:55 -08:00
smb2glob.h SMB3: Add mount parameter to allow user to override max credits 2016-10-12 12:08:33 -05:00
smb2inode.c Do not send SMB3 SET_INFO request if nothing is changing 2016-10-13 19:46:51 -05:00
smb2maperror.c Fix problem recognizing symlinks 2014-10-02 14:10:04 -05:00
smb2misc.c Clarify locking of cifs file and tcon structures and make more granular 2016-10-12 12:08:32 -05:00
smb2ops.c Cleanup missing frees on some ioctls 2016-10-13 19:48:20 -05:00
smb2pdu.c CIFS: Fix a possible double locking of mutex during reconnect 2016-12-05 12:52:01 -08:00
smb2pdu.h CIFS: Fix a possible double locking of mutex during reconnect 2016-12-05 12:52:01 -08:00
smb2proto.h CIFS: Fix a possible memory corruption during reconnect 2016-12-05 12:08:33 -08:00
smb2status.h
smb2transport.c cifs: merge the hash calculation helpers 2016-03-28 14:05:27 -04:00
smbencrypt.c cifs: Fix smbencrypt() to stop pointing a scatterlist at the stack 2016-12-14 01:44:16 -06:00
smberr.h
smbfsctl.h [SMB3] Send durable handle v2 contexts when use of persistent handles required 2015-11-03 09:26:27 -06:00
transport.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
winucase.c
xattr.c Add way to query creation time of file via cifs xattr 2016-10-12 12:08:31 -05:00