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* [CIFS] Fix double list addition in cifs posix open codeSteve French2009-05-07
| | | | | | | | Remove adding open file entry twice to lists in the file Do not fill file info twice in case of posix opens and creates Signed-off-by: Shirish Pargaonkar <shirishp@us.ibm.com> Signed-off-by: Steve French <sfrench@us.ibm.com>
* [CIFS] Allow raw ntlmssp code to be enabled with sec=ntlmsspSteve French2009-05-06
| | | | | | | | | On mount, "sec=ntlmssp" can now be specified to allow "rawntlmssp" security to be enabled during CIFS session establishment/authentication (ntlmssp used to require specifying krb5 which was counterintuitive). Signed-off-by: Steve French <sfrench@us.ibm.com>
* [CIFS] Fix SMB uid in NTLMSSP authenticate requestSteve French2009-05-05
| | | | | | | | We were not setting the SMB uid in NTLMSSP authenticate request which could lead to INVALID_PARAMETER error on 2nd session setup. Signed-off-by: Steve French <sfrench@us.ibm.com>
* [CIFS] NTLMSSP reenabled after move from connect.c to sess.cSteve French2009-05-04
| | | | | | | | | | | | | | | | | | | The NTLMSSP code was removed from fs/cifs/connect.c and merged (75% smaller, cleaner) into fs/cifs/sess.c As with the old code it requires that cifs be built with CONFIG_CIFS_EXPERIMENTAL, the /proc/fs/cifs/Experimental flag must be set to 2, and mount must turn on extended security (e.g. with sec=krb5). Although NTLMSSP encapsulated in SPNEGO is not enabled yet, "raw" ntlmssp is common and useful in some cases since it offers more complete security negotiation, and is the default way of negotiating security for many Windows systems. SPNEGO encapsulated NTLMSSP will be able to reuse the same code. Signed-off-by: Steve French <sfrench@us.ibm.com>
* [CIFS] Remove sparse warningSteve French2009-05-02
| | | | Signed-off-by: Steve French <sfrench@us.ibm.com>
* [CIFS] remove checkpatch warningSteve French2009-05-02
| | | | Signed-off-by: Steve French <sfrench@us.ibm.com>
* [CIFS] Fix final user of old string conversion codeSteve French2009-05-02
| | | | Signed-off-by: Steve French <sfrench@us.ibm.com>
* [CIFS] remove cifs_strfromUCS_leJeff Layton2009-05-02
| | | | | Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Steve French <sfrench@us.ibm.com>
* [CIFS] NTLMSSP support moving into new file, old dead code removedSteve French2009-05-02
| | | | | | | Remove dead NTLMSSP support from connect.c prior to addition of the new code to replace it. Signed-off-by: Steve French <sfrench@us.ibm.com>
* [CIFS] Fix endian conversion of vcnum fieldSteve French2009-05-01
| | | | | | | | | | | | | When multiply mounting from the same client to the same server, with different userids, we create a vcnum which should be unique if possible (this is not the same as the smb uid, which is the handle to the security context). We were not endian converting additional (beyond the first which is zero) vcnum properly. CC: Stable <stable@kernel.org> Acked-by: Shirish Pargaonkar <shirishp@us.ibm.com> Acked-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Steve French <sfrench@us.ibm.com>
* [CIFS] Remove trailing whitespaceSteve French2009-05-01
| | | | Signed-off-by: Steve French <sfrench@us.ibm.com>
* [CIFS] Remove sparse endian warningsSteve French2009-05-01
| | | | | | | | | Removes two sparse CHECK_ENDIAN warnings from Jeffs earlier patch, and removes the dead readlink code (after noting where in findfirst we will need to add something like that in the future to handle the newly discovered unexpected error on FindFirst of NTFS symlinks. Signed-off-by: Steve French <sfrench@us.ibm.com>
* [CIFS] Add remaining ntlmssp flags and standardize field namesSteve French2009-05-01
| | | | Signed-off-by: Steve French <sfrench@us.ibm.com>
* [CIFS] Fix build warningSteve French2009-04-30
| | | | Signed-off-by: Steve French <sfrench@us.ibm.com>
* cifs: fix length handling in cifs_get_name_from_search_bufJeff Layton2009-04-30
| | | | | | | | | | | | | | The earlier patch to move this code to use the new unicode helpers assumed that the filename strings would be null terminated. That's not always the case. Instead of passing "max_len" to the string converter, pass "min(len, max_len)", which makes it do the right thing while still keeping the parser confined to the response. Also fix up the prototypes of this function and the callers so that max_len is unsigned (like len is). Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Steve French <sfrench@us.ibm.com>
* [CIFS] Remove unneeded QuerySymlink call and fix mapping for unmapped statusSteve French2009-04-30
| | | | Signed-off-by: Steve French <sfrench@us.ibm.com>
* [CIFS] rename cifs_strndup to cifs_strndup_from_ucsSteve French2009-04-30
| | | | | | | | | | In most cases, cifs_strndup is converting from Unicode (UCS2 / UTF-32) to the configured local code page for the Linux mount (usually UTF8), so Jeff suggested that to make it more clear that cifs_strndup is doing a conversion not just memory allocation and copy, rename the function to including "from_ucs" (ie Unicode) Signed-off-by: Steve French <sfrench@us.ibm.com>
* Added loop check when mounting DFS tree.Igor Mammedov2009-04-30
| | | | | | | | | Added loop check when mounting DFS tree. mount will fail with ELOOP if referral walks exceed MAX_NESTED_LINK count. Signed-off-by: Igor Mammedov <niallain@gmail.com> Acked-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Steve French <sfrench@us.ibm.com>
* Enable dfs submounts to handle remote referrals.Igor Mammedov2009-04-30
| | | | | | | | | Having remote dfs root support in cifs_mount, we can afford to pass into it UNC that is remote. Signed-off-by: Igor Mammedov <niallain@gmail.com> Acked-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Steve French <sfrench@us.ibm.com>
* [CIFS] Remove older session setup implementationSteve French2009-04-30
| | | | | | | | | | | | | | | | | | | | | | Two years ago, when the session setup code in cifs was rewritten and moved to fs/cifs/sess.c, we were asked to keep the old code for a release or so (which could be reenabled at runtime) since it was such a large change and because the asn (SPNEGO) and NTLMSSP code was not rewritten and needed to be. This was useful to avoid regressions, but is long overdue to be removed. Now that the Kerberos (asn/spnego) code is working in fs/cifs/sess.c, and the NTLMSSP code moved (NTLMSSP blob setup be rewritten with the next patch in this series) quite a bit of dead code from fs/cifs/connect.c now can be removed. This old code should have been removed last year, but the earlier krb5 patches did not move/remove the NTLMSSP code which we had asked to be done first. Since no one else volunteered, I am doing it now. It is extremely important that we continue to examine the documentation for this area, to make sure our code continues to be uptodate with changes since Windows 2003. Signed-off-by: Steve French <sfrench@us.ibm.com>
* cifs: change cifs_get_name_from_search_buf to use new unicode helperJeff Layton2009-04-30
| | | | | | | | | | ...and remove cifs_convertUCSpath. There are no more callers. Also add a #define for the buffer used in the readdir path so that we don't have so many magic numbers floating around. Signed-off-by: Jeff Layton <jlayton@redhat.com> Acked-by: Suresh Jayaraman <sjayaraman@suse.de> Signed-off-by: Steve French <sfrench@us.ibm.com>
* cifs: change CIFSSMBUnixQuerySymLink to use new helpersJeff Layton2009-04-30
| | | | | | | | | | Change CIFSSMBUnixQuerySymLink to use the new unicode helper functions. Also change the calling conventions so that the allocation of the target name buffer is done in CIFSSMBUnixQuerySymLink rather than by the caller. Signed-off-by: Jeff Layton <jlayton@redhat.com> Acked-by: Suresh Jayaraman <sjayaraman@suse.de> Signed-off-by: Steve French <sfrench@us.ibm.com>
* cifs: fix session setup unicode string saving to use new unicode helpersJeff Layton2009-04-30
| | | | | | | | | ...and change decode_unicode_ssetup to be a void function. It never returns an actual error anyway. Signed-off-by: Jeff Layton <jlayton@redhat.com> Acked-by: Suresh Jayaraman <sjayaraman@suse.de> Signed-off-by: Steve French <sfrench@us.ibm.com>
* cifs: convert CIFSTCon to use new unicode helper functionsJeff Layton2009-04-30
| | | | | | Signed-off-by: Jeff Layton <jlayton@redhat.com> Acked-by: Suresh Jayaraman <sjayaraman@suse.de> Signed-off-by: Steve French <sfrench@us.ibm.com>
* cifs: rename cifs_strlcpy_to_host and make it use new functionsJeff Layton2009-04-30
| | | | | | | | | | | Rename cifs_strlcpy_to_host to cifs_strndup since that better describes what this function really does. Then, convert it to use the new string conversion and measurement functions that work in units of bytes rather than wide chars. Signed-off-by: Jeff Layton <jlayton@redhat.com> Acked-by: Suresh Jayaraman <sjayaraman@suse.de> Signed-off-by: Steve French <sfrench@us.ibm.com>
* cifs: add new function to get unicode string length in bytesJeff Layton2009-04-30
| | | | | | | | | | | Working in units of words means we do a lot of unnecessary conversion back and forth. Standardize on bytes instead since that's more useful for allocating buffers and such. Also, remove hostlen_fromUCS since the new function has a similar purpose. Signed-off-by: Jeff Layton <jlayton@redhat.com> Acked-by: Suresh Jayaraman <sjayaraman@suse.de> Signed-off-by: Steve French <sfrench@us.ibm.com>
* cifs: add replacement for cifs_strtoUCS_le called cifs_from_ucs2Jeff Layton2009-04-30
| | | | | | | | | | Add a replacement function for cifs_strtoUCS_le. cifs_from_ucs2 takes args for the source and destination length so that we can ensure that the function is confined within the intended buffers. Signed-off-by: Jeff Layton <jlayton@redhat.com> Acked-by: Suresh Jayaraman <sjayaraman@suse.de> Signed-off-by: Steve French <sfrench@us.ibm.com>
* cifs: move #defines for mapchars into cifs_unicode.hJeff Layton2009-04-30
| | | | | | Signed-off-by: Jeff Layton <jlayton@redhat.com> Acked-by: Suresh Jayaraman <sjayaraman@suse.de> Signed-off-by: Steve French <sfrench@us.ibm.com>
* Merge branch 'master' of /pub/scm/linux/kernel/git/torvalds/linux-2.6Steve French2009-04-30
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| * eCryptfs: Fix min function comparison warningTyler Hicks2009-04-27
| | | | | | | | | | | | | | | | | | This warning shows up on 64 bit builds: fs/ecryptfs/inode.c:693: warning: comparison of distinct pointer types lacks a cast Signed-off-by: Tyler Hicks <tyhicks@linux.vnet.ibm.com>
| * ecryptfs: fix printk format warningRandy Dunlap2009-04-27
| | | | | | | | | | | | | | | | | | fs/ecryptfs/inode.c:670: warning: format '%d' expects type 'int', but argument 3 has type 'size_t' Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Tyler Hicks <tyhicks@linux.vnet.ibm.com> Cc: Dustin Kirkland <kirkland@canonical.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
| * bio: fix memcpy corruption in bio_copy_user_iov()FUJITA Tomonori2009-04-28
| | | | | | | | | | | | | | | | | | | | st driver uses blk_rq_map_user() in order to just build a request out of page frames. In this case, map_data->offset is a non zero value and iov[0].iov_base is NULL. We need to increase nr_pages for that. Cc: stable@kernel.org Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
| * Merge git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs-unstableLinus Torvalds2009-04-27
| |\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs-unstable: Btrfs: look for acls during btrfs_read_locked_inode Btrfs: fix acl caching Btrfs: Fix a bunch of printk() warnings. Btrfs: Fix a trivial warning using max() of u64 vs ULL. Btrfs: remove unused btrfs_bit_radix slab Btrfs: ratelimit IO error printks Btrfs: remove #if 0 code Btrfs: When shrinking, only update disk size on success Btrfs: fix deadlocks and stalls on dead root removal Btrfs: fix fallocate deadlock on inode extent lock Btrfs: kill btrfs_cache_create Btrfs: don't export symbols Btrfs: simplify makefile Btrfs: try to keep a healthy ratio of metadata vs data block groups
| | * Btrfs: look for acls during btrfs_read_locked_inodeChris Mason2009-04-27
| | | | | | | | | | | | | | | | | | | | | | | | This changes btrfs_read_locked_inode() to peek ahead in the btree for acl items. If it is certain a given inode has no acls, it will set the in memory acl fields to null to avoid acl lookups completely. Signed-off-by: Chris Mason <chris.mason@oracle.com>
| | * Btrfs: fix acl cachingChris Mason2009-04-27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Linus noticed the btrfs code to cache acls wasn't properly caching a NULL acl when the inode didn't have any acls. This meant the common case of no acls resulted in expensive btree searches every time the kernel checked permissions (which is quite often). This is a modified version of Linus' original patch: Properly set initial acl fields to BTRFS_ACL_NOT_CACHED in the inode. This forces an acl lookup when permission checks are done. Fix btrfs_get_acl to avoid lookups and locking when the inode acls fields are set to null. Fix btrfs_get_acl to use the right return value from __btrfs_getxattr when deciding to cache a NULL acl. It was storing a NULL acl when __btrfs_getxattr return -ENOENT, but __btrfs_getxattr was actually returning -ENODATA for this case. Signed-off-by: Chris Mason <chris.mason@oracle.com>
| | * Btrfs: Fix a bunch of printk() warnings.Joel Becker2009-04-27
| | | | | | | | | | | | | | | | | | | | | | | | Just happened to notice a bunch of %llu vs u64 warnings. Here's a patch to cast them all. Signed-off-by: Joel Becker <joel.becker@oracle.com> Signed-off-by: Chris Mason <chris.mason@oracle.com>
| | * Btrfs: Fix a trivial warning using max() of u64 vs ULL.Joel Becker2009-04-27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | A small warning popped up on ia64 because inode-map.c was comparing a u64 object id with the ULL FIRST_FREE_OBJECTID. My first thought was that all the OBJECTID constants should contain the u64 cast because btrfs code deals entirely in u64s. But then I saw how large that was, and figured I'd just fix the max() call. Signed-off-by: Joel Becker <joel.becker@oracle.com> Signed-off-by: Chris Mason <chris.mason@oracle.com>
| | * Btrfs: remove unused btrfs_bit_radix slabChris Mason2009-04-27
| | | | | | | | | | | | Signed-off-by: Chris Mason <chris.mason@oracle.com>
| | * Btrfs: ratelimit IO error printksChris Mason2009-04-27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Btrfs has printks for various IO errors, including bad checksums and mismatches between what we expect the block headers to contain and what we actually find on the disk. Longer term we need a real reporting mechanism for this, but for now printk is going to have to do. Signed-off-by: Chris Mason <chris.mason@oracle.com>
| | * Btrfs: remove #if 0 codeChris Mason2009-04-27
| | | | | | | | | | | | | | | | | | Btrfs had some old code sitting around under #if 0, this drops it. Signed-off-by: Chris Mason <chris.mason@oracle.com>
| | * Btrfs: When shrinking, only update disk size on successChris Ball2009-04-27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Previously, we updated a device's size prior to attempting a shrink operation. This patch moves the device resizing logic to only happen if the shrink completes successfully. In the process, it introduces a new field to btrfs_device -- disk_total_bytes -- to track the on-disk size. Signed-off-by: Chris Ball <cjb@laptop.org> Signed-off-by: Chris Mason <chris.mason@oracle.com>
| | * Btrfs: fix deadlocks and stalls on dead root removalChris Mason2009-04-24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | After a transaction commit, the old root of the subvol btrees are sent through snapshot removal. This is what actually frees up any blocks replaced by COW, and anything the old blocks pointed to. Snapshot deletion will pause when a transaction commit has started, which helps to avoid a huge amount of delayed reference count updates piling up as the transaction is trying to close. But, this pause happens after the snapshot deletion process has asked other procs on the system to throttle back a bit so that it can make progress. We don't want to throttle everyone while we're waiting for the transaction commit, it leads to deadlocks in the user transaction ioctls used by Ceph and makes things slower in general. This patch changes things to avoid the throttling while we sleep. Signed-off-by: Chris Mason <chris.mason@oracle.com>
| | * Btrfs: fix fallocate deadlock on inode extent lockChris Mason2009-04-24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The btrfs fallocate call takes an extent lock on the entire range being fallocated, and then runs through insert_reserved_extent on each extent as they are allocated. The problem with this is that btrfs_drop_extents may decide to try and take the same extent lock fallocate was already holding. The solution used here is to push down knowledge of the range that is already locked going into btrfs_drop_extents. It turns out that at least one other caller had the same bug. Signed-off-by: Chris Mason <chris.mason@oracle.com>
| | * Btrfs: kill btrfs_cache_createChristoph Hellwig2009-04-24
| | | | | | | | | | | | | | | | | | | | | Just use kmem_cache_create directly. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Chris Mason <chris.mason@oracle.com>
| | * Btrfs: don't export symbolsChristoph Hellwig2009-04-24
| | | | | | | | | | | | | | | | | | | | | | | | Currently the extent_map code is only for btrfs so don't export it's symbols. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Chris Mason <chris.mason@oracle.com>
| | * Btrfs: simplify makefileChristoph Hellwig2009-04-24
| | | | | | | | | | | | | | | | | | | | | | | | Get rid of the hacks for building out of tree, and always use += for assigning to the object lists. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Chris Mason <chris.mason@oracle.com>
| | * Btrfs: try to keep a healthy ratio of metadata vs data block groupsJosef Bacik2009-04-24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch makes the chunk allocator keep a good ratio of metadata vs data block groups. By default for every 8 data block groups, we'll allocate 1 metadata chunk, or about 12% of the disk will be allocated for metadata. This can be changed by specifying the metadata_ratio mount option. This is simply the number of data block groups that have to be allocated to force a metadata chunk allocation. By making sure we allocate metadata chunks more often, we are less likely to get into situations where the whole disk has been allocated as data block groups. Signed-off-by: Josef Bacik <jbacik@redhat.com> Signed-off-by: Chris Mason <chris.mason@oracle.com>
| * | Merge branch 'for_linus' of ↵Linus Torvalds2009-04-27
| |\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-quota-2.6 * 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-quota-2.6: ext2: missing unlock in ext2_quota_write() quota: remove obsolete comments in fs/quota/Makefile
| | * | ext2: missing unlock in ext2_quota_write()Dan Carpenter2009-04-27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The inode->i_mutex should be unlocked. Found by smatch (http://repo.or.cz/w/smatch.git). Compile tested. Signed-off-by: Dan Carpenter <error27@gmail.com> Signed-off-by: Jan Kara <jack@suse.cz>
| | * | quota: remove obsolete comments in fs/quota/MakefileChristoph Hellwig2009-04-27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Get rid of useless comments and the equally useless obj-y initialization. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jan Kara <jack@suse.cz>
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