linux-toradex.git/fs/cifs, branch v3.17.4

CIFS: Fix readpages retrying on reconnects

2014-10-02T19:17:41+00:00

If we got a reconnect error from async readv we re-add pages back
to page_list and continue loop. That is wrong because these pages
have been already added to the pagecache but page_list has pages that
have not been added to the pagecache yet. This ends up with a general
protection fault in put_pages after readpages. Fix it by not retrying
the read of these pages and falling back to readpage instead.

Fixes debian bug 762306

Signed-off-by: Pavel Shilovsky 
Signed-off-by: Steve French 
Tested-by: Arthur Marsh

Fix problem recognizing symlinks

2014-10-02T19:10:04+00:00

Changeset eb85d94bd introduced a problem where if a cifs open
fails during query info of a file we
will still try to close the file (happens with certain types
of reparse points) even though the file handle is not valid.

In addition for SMB2/SMB3 we were not mapping the return code returned
by Windows when trying to open a file (like a Windows NFS symlink)
which is a reparse point.

Signed-off-by: Steve French 
Reviewed-by: Pavel Shilovsky 
CC: stable  #v3.13+

Fix mfsymlinks file size check

2014-09-16T11:48:20+00:00

If the mfsymlinks file size has changed (e.g. the file no longer
represents an emulated symlink) we were not returning an error properly.

Signed-off-by: Steve French 
Reviewed-by: Stefan Metzmacher

Update version number displayed by modinfo for cifs.ko

2014-09-16T10:31:01+00:00

Update cifs.ko version to 2.05

Signed-off-by: Steve French w

cifs: remove dead code

2014-09-16T10:30:11+00:00

cifs provides two dummy functions 'sess_auth_lanman' and
'sess_auth_kerberos' for the case in which the respective
features are not defined. However, the caller is also under
an #ifdef, so we just get warnings about unused code:

fs/cifs/sess.c:1109:1: warning: 'sess_auth_kerberos' defined but not used [-Wunused-function]
 sess_auth_kerberos(struct sess_data *sess_data)

Removing the dead functions gets rid of the warnings without
any downsides that I can see.

(Yalin Wang reported the identical problem and fix so added him)

Signed-off-by: Arnd Bergmann 
Signed-off-by: Yalin Wang 
Signed-off-by: Steve French

Revert "cifs: No need to send SIGKILL to demux_thread during umount"

2014-09-16T10:26:24+00:00

This reverts commit 52a36244443eabb594bdb63622ff2dd7a083f0e2.

Causes rmmod to fail for at least 7 seconds after unmount which
makes automated testing a little harder when reloading cifs.ko
between test runs.

Signed-off-by: Namjae Jeon 
CC: Jeff Layton 
Signed-off-by: Steve French

[SMB3] Fix oops when creating symlinks on smb3

2014-09-15T08:04:50+00:00

We were not checking for symlink support properly for SMB2/SMB3
mounts so could oops when mounted with mfsymlinks when try
to create symlink when mfsymlinks on smb2/smb3 mounts

Signed-off-by: Steve French 
Cc:  # 3.14+
CC: Sachin Prabhu

[CIFS] Fix setting time before epoch (negative time values)

2014-09-14T22:06:36+00:00

xfstest generic/258 sets the time on a file to a negative value
(before 1970) which fails since do_div can not handle negative
numbers.  In addition 'normal' division of 64 bit values does
not build on 32 bit arch so have to workaround this by special
casing negative values in cifs_NTtimeToUnix

Samba server also has a bug with this (see samba bugzilla 7771)
but it works to Windows server.

Signed-off-by: Steve French

Clarify Kconfig help text for CIFS and SMB2/SMB3

2014-08-25T22:01:05+00:00

Clarify descriptions of SMB2 and SMB3 support in Kconfig

Signed-off-by: Steve French 
Reviewed-by: Pavel Shilovsky

CIFS: Fix wrong filename length for SMB2

2014-08-25T21:45:17+00:00

The existing code uses the old MAX_NAME constant. This causes
XFS test generic/013 to fail. Fix it by replacing MAX_NAME with
PATH_MAX that SMB1 uses. Also remove an unused MAX_NAME constant
definition.

Cc:  # v3.7+
Signed-off-by: Pavel Shilovsky 
Signed-off-by: Steve French