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2010-08-02udf: remove duplicated #includeHuang Weiyi
Remove duplicated #include('s) in fs/udf/file.c Signed-off-by: Huang Weiyi <weiyi.huang@gmail.com> Signed-off-by: Jan Kara <jack@suse.cz>
2010-08-02jbd2: Use atomic variables to avoid taking t_handle_lock in jbd2_journal_stopTheodore Ts'o
By using an atomic_t for t_updates and t_outstanding credits, this should allow us to not need to take transaction t_handle_lock in jbd2_journal_stop(). Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
2010-08-02cifs: fsc should not default to "on"Jeff Layton
I'm not sure why this was merged with this flag hardcoded on, but it seems quite dangerous. Turn it off. Also, mount.cifs hands unrecognized options off to the kernel so there should be no need for changes there in order to support this. Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Steve French <sfrench@us.ibm.com>
2010-08-02[CIFS] remove redundant path walking in dfs_do_refmountSteve French
Reviewed-by: Dave Howells <dhowells@redhat.com> Signed-off-by: Igor Mammedov <niallain@gmail.com> Signed-off-by: Steve French <sfrench@us.ibm.com>
2010-08-02cifs: ignore the "mand", "nomand" and "_netdev" mount optionsJeff Layton
These are all handled by the userspace mount programs, but older versions of mount.cifs also handed them off to the kernel. Ignore them. Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Steve French <sfrench@us.ibm.com>
2010-08-02cifs: map NT_STATUS_ERROR_WRITE_PROTECTED to -EROFSJeff Layton
Seems like a more sensible mapping than -EIO. Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Steve French <sfrench@us.ibm.com>
2010-08-02cifs: don't allow cifs_iget to match inodes of the wrong typeJeff Layton
If the type is different from what we think it should be, then don't match the existing inode. Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Steve French <sfrench@us.ibm.com>
2010-08-02[CIFS] relinquish fscache cookie before freeing CIFSTconInfoSteve French
Doh, fix a use after free bug. Signed-off-by: Suresh Jayaraman <sjayaraman@suse.de> Reviewed-and-Tested-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Steve French <sfrench@us.ibm.com>
2010-08-02cifs: add separate cred_uid field to sesInfoJeff Layton
Right now, there's no clear separation between the uid that owns the credentials used to do the mount and the overriding owner of the files on that mount. Add a separate cred_uid field that is set to the real uid of the mount user. Unlike the linux_uid, the uid= option does not override this parameter. The parm is sent to cifs.upcall, which can then preferentially use the creduid= parm instead of the uid= parm for finding credentials. This is not the only way to solve this. We could try to do all of this in kernel instead by having a module parameter that affects what gets passed in the uid= field of the upcall. That said, we have a lot more flexibility to change things in userspace so I think it probably makes sense to do it this way. Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Steve French <sfrench@us.ibm.com>
2010-08-02fs: cifs: check kmalloc() resultKulikov Vasiliy
If kmalloc() fails exit with -ENOMEM. Signed-off-by: Kulikov Vasiliy <segooon@gmail.com> Acked-by: Dave Kleikamp <shaggy@linux.vnet.ibm.com> Acked-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Steve French <sfrench@us.ibm.com>
2010-08-02[CIFS] Missing ifdefSteve French
Signed-off-by: Steve French <sfrench@us.ibm.com>
2010-08-02[CIFS] Missing line from previous commitSteve French
CC: Suresh Jayaraman <sjayaraman@suse.de> Signed-off-by: Steve French <sfrench@us.ibm.com>
2010-08-02[CIFS] Fix build break when CONFIG_CIFS_FSCACHE disabledSteve French
CC: Suresh Jayaraman <sjayaraman@suse.de> Signed-off-by: Steve French <sfrench@us.ibm.com>
2010-08-02cifs: add mount option to enable local cachingSuresh Jayaraman
Add a mount option 'fsc' to enable local caching on CIFS. I considered adding a separate debug bit for caching, but it appears that debugging would be relatively easier with the normal CIFS_INFO level. As the cifs-utils (userspace) changes are not done yet, this patch enables 'fsc' by default to enable testing. Signed-off-by: Suresh Jayaraman <sjayaraman@suse.de> Acked-by: David Howells <dhowells@redhat.com> Signed-off-by: Steve French <sfrench@us.ibm.com>
2010-08-02cifs: read pages from FS-CacheSuresh Jayaraman
Read pages from a FS-Cache data storage object into a CIFS inode. Signed-off-by: Suresh Jayaraman <sjayaraman@suse.de> Acked-by: David Howells <dhowells@redhat.com> Signed-off-by: Steve French <sfrench@us.ibm.com>
2010-08-02cifs: store pages into local cacheSuresh Jayaraman
Store pages from an CIFS inode into the data storage object associated with that inode. Signed-off-by: Suresh Jayaraman <sjayaraman@suse.de> Signed-off-by: Steve French <sfrench@us.ibm.com>
2010-08-02cifs: FS-Cache page managementSuresh Jayaraman
Takes care of invalidation and release of FS-Cache marked pages and also invalidation of the FsCache page flag when the inode is removed. Signed-off-by: Suresh Jayaraman <sjayaraman@suse.de> Acked-by: David Howells <dhowells@redhat.com> Signed-off-by: Steve French <sfrench@us.ibm.com>
2010-08-02cifs: define inode-level cache object and register themSuresh Jayaraman
Define inode-level data storage objects (managed by cifsInodeInfo structs). Each inode-level object is created in a super-block level object and is itself a data storage object in to which pages from the inode are stored. The inode object is keyed by UniqueId. The coherency data being used is LastWriteTime, LastChangeTime and end of file reported by the server. Signed-off-by: Suresh Jayaraman <sjayaraman@suse.de> Signed-off-by: Steve French <sfrench@us.ibm.com>
2010-08-02cifs: define superblock-level cache index objects and register themSuresh Jayaraman
Define superblock-level cache index objects (managed by cifsTconInfo structs). Each superblock object is created in a server-level index object and in itself an index into which inode-level objects are inserted. The superblock object is keyed by sharename. The UniqueId/IndexNumber is used to validate that the exported share is the same since we accessed it last time. Signed-off-by: Suresh Jayaraman <sjayaraman@suse.de> Signed-off-by: Steve French <sfrench@us.ibm.com>
2010-08-02cifs: remove unused cifsUidInfo structJeff Layton
Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Steve French <sfrench@us.ibm.com>
2010-08-02cifs: clean up cifs_find_smb_ses (try #2)Jeff Layton
This patch replaces the earlier patch by the same name. The only difference is that MAX_PASSWORD_SIZE has been increased to attempt to match the limits that windows enforces. Do a better job of matching sessions by authtype. Matching by username for a Kerberos session is incorrect, and anonymous sessions need special handling. Also, in the case where we do match by username, we also need to match by password. That ensures that someone else doesn't "borrow" an existing session without needing to know the password. Finally, passwords can be longer than 16 bytes. Bump MAX_PASSWORD_SIZE to 512 to match the size that the userspace mount helper allows. Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Steve French <sfrench@us.ibm.com>
2010-08-02cifs: match secType when searching for existing tcp sessionJeff Layton
The secType is a per-tcp session entity, but the current routine doesn't verify that it is acceptible when attempting to match an existing TCP session. Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Steve French <sfrench@us.ibm.com>
2010-08-02cifs: move address comparison into separate functionJeff Layton
Move the address comparator out of cifs_find_tcp_session and into a separate function for cleanliness. Also change the argument to that function to a "struct sockaddr" pointer. Passing pointers to sockaddr_storage is a little odd since that struct is generally for declaring static storage. Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Steve French <sfrench@us.ibm.com>
2010-08-02cifs: set the port in sockaddr in a more clearly defined fashionJeff Layton
This patch should replace the patch I sent a couple of weeks ago to set the port in cifs_convert_address. Currently we set this in cifs_find_tcp_session, but that's more of a side effect than anything. Add a new function called cifs_fill_sockaddr. Have it call cifs_convert_address and then set the port. This also allows us to skip passing in the port as a separate parm to cifs_find_tcp_session. Also, change cifs_convert_address take a struct sockaddr * rather than void * to make it clearer how this function should be called. Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Steve French <sfrench@us.ibm.com>
2010-08-02cifs: define server-level cache index objects and register themSuresh Jayaraman
Define server-level cache index objects (as managed by TCP_ServerInfo structs) and register then with FS-Cache. Each server object is created in the CIFS top-level index object and is itself an index into which superblock-level objects are inserted. The server objects are now keyed by {IPaddress,family,port} tuple. Signed-off-by: Suresh Jayaraman <sjayaraman@suse.de> Signed-off-by: Steve French <sfrench@us.ibm.com>
2010-08-02cifs: register CIFS for cachingSuresh Jayaraman
Define CIFS for FS-Cache and register for caching. Upon registration the top-level index object cookie will be stuck to the netfs definition by FS-Cache. Signed-off-by: Suresh Jayaraman <sjayaraman@suse.de> Signed-off-by: Steve French <sfrench@us.ibm.com>
2010-08-02fs/cifs: Remove unnecessary casts of private_dataJoe Perches
Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Steve French <sfrench@us.ibm.com>
2010-08-02cifs: add kernel config option for CIFS Client caching supportSuresh Jayaraman
Add a kernel config option to enable local caching for CIFS. Signed-off-by: Suresh Jayaraman <sjayaraman@suse.de> Signed-off-by: Steve French <sfrench@us.ibm.com>
2010-08-02cifs: remove unused ip_address field in struct TCP_Server_InfoSuresh Jayaraman
The ip_address field is not used and seems redundant as there is union addr already and I don't see any future use as well. Signed-off-by: Suresh Jayaraman <sjayaraman@suse.de> Signed-off-by: Steve French <sfrench@us.ibm.com>
2010-08-02cifs: remove an potentially confusing, obsolete commentSuresh Jayaraman
The recent commit 6ca9f3bae8b1854794dfa63cdd3b88b7dfe24c13 modified the code so that filp is full instantiated whenever the file is created and passed back. The below comment is no longer true, remove it. Cc: Jeff Layton <jlayton@redhat.com> Signed-off-by: Suresh Jayaraman <sjayaraman@suse.de> Signed-off-by: Steve French <sfrench@us.ibm.com>
2010-08-02cifs: guard cifsglob.h against multiple inclusionSuresh Jayaraman
Add conditional compile macros to guard the header file against multiple inclusion. Signed-off-by: Suresh Jayaraman <sjayaraman@suse.de> Acked-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Steve French <sfrench@us.ibm.com>
2010-08-02GFS2: Fix recovery stuck bug (try #2)Steven Whitehouse
This is a clean up of the code which deals with LM_FLAG_NOEXP which aims to remove any possible race conditions by using gl_spin to cover the gap between testing for the LM_FLAG_NOEXP and the GL_FROZEN flag. Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
2010-08-02Merge commit 'v2.6.35' into perf/coreIngo Molnar
Conflicts: tools/perf/Makefile tools/perf/util/hist.c Merge reason: Resolve the conflicts and update to latest upstream. Signed-off-by: Ingo Molnar <mingo@elte.hu>
2010-08-02security: make LSMs explicitly mask off permissionsEric Paris
SELinux needs to pass the MAY_ACCESS flag so it can handle auditting correctly. Presently the masking of MAY_* flags is done in the VFS. In order to allow LSMs to decide what flags they care about and what flags they don't just pass them all and the each LSM mask off what they don't need. This patch should contain no functional changes to either the VFS or any LSM. Signed-off-by: Eric Paris <eparis@redhat.com> Acked-by: Stephen D. Smalley <sds@tycho.nsa.gov> Signed-off-by: James Morris <jmorris@namei.org>
2010-08-02vfs: re-introduce MAY_CHDIREric Paris
Currently MAY_ACCESS means that filesystems must check the permissions right then and not rely on cached results or the results of future operations on the object. This can be because of a call to sys_access() or because of a call to chdir() which needs to check search without relying on any future operations inside that dir. I plan to use MAY_ACCESS for other purposes in the security system, so I split the MAY_ACCESS and the MAY_CHDIR cases. Signed-off-by: Eric Paris <eparis@redhat.com> Acked-by: Stephen D. Smalley <sds@tycho.nsa.gov> Signed-off-by: James Morris <jmorris@namei.org>
2010-08-02LSM: Remove unused arguments from security_path_truncate().Tetsuo Handa
When commit be6d3e56a6b9b3a4ee44a0685e39e595073c6f0d "introduce new LSM hooks where vfsmount is available." was proposed, regarding security_path_truncate(), only "struct file *" argument (which AppArmor wanted to use) was removed. But length and time_attrs arguments are not used by TOMOYO nor AppArmor. Thus, let's remove these arguments. Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Acked-by: Nick Piggin <npiggin@suse.de> Signed-off-by: James Morris <jmorris@namei.org>
2010-08-01ext4: Add mount options in superblockTheodore Ts'o
Allow mount options to be stored in the superblock. Also add default mount option bits for nobarrier, block_validity, discard, and nodelalloc. Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
2010-08-01ceph: make ->sync_fs not wait if wait==0Sage Weil
The ->sync_fs() super op only needs to wait if wait is true. Otherwise, just get some dirty cap writeback started. Signed-off-by: Sage Weil <sage@newdream.net>
2010-08-01ceph: warn on missing snap realmSage Weil
Well, this Shouldn't Happen, so it would be helpful to know the caller when it does. Signed-off-by: Sage Weil <sage@newdream.net>
2010-08-01ceph: print useful error message when crush rule not foundSage Weil
Include the crush_ruleset in the error message. Signed-off-by: Sage Weil <sage@newdream.net>
2010-08-01ceph: use %pU to print uuid (fsid)Sage Weil
Signed-off-by: Sage Weil <sage@newdream.net>
2010-08-01ceph: sync header defs with server codeSage Weil
Define ROLLBACK op, IFLOCK inode lock (for advisory file locking). Signed-off-by: Sage Weil <sage@newdream.net>
2010-08-01ceph: clean up header guardsSage Weil
Signed-off-by: Sage Weil <sage@newdream.net>
2010-08-01ceph: strip misleading/obsolete version, feature infoSage Weil
Signed-off-by: Sage Weil <sage@newdream.net>
2010-08-01ceph: specify supported features in super.hSage Weil
Specify the supported/required feature bits in super.h client code instead of using the definitions from the shared kernel/userspace headers (which will go away shortly). Signed-off-by: Sage Weil <sage@newdream.net>
2010-08-01ceph: clean up fsid mount optionSage Weil
Specify the fsid mount option in hex, not via the major/minor u64 hackery we had before. Signed-off-by: Sage Weil <sage@newdream.net>
2010-08-01ceph: remove unused 'monport' mount optionSage Weil
Signed-off-by: Sage Weil <sage@newdream.net>
2010-08-01ceph: handle ESTALE properly; on receipt send to authority if it wasn'tGreg Farnum
Signed-off-by: Greg Farnum <gregf@hq.newdream.net> Signed-off-by: Sage Weil <sage@newdream.net>
2010-08-01ceph: add ceph_get_cap_for_mds function.Greg Farnum
Signed-off-by: Greg Farnum <gregf@hq.newdream.net> Signed-off-by: Sage Weil <sage@newdream.net>
2010-08-01ceph: connect to export targets on cap exportSage Weil
When we get a cap EXPORT message, make sure we are connected to all export targets to ensure we can handle the matching IMPORT. Signed-off-by: Sage Weil <sage@newdream.net>
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