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2007-10-18CIFS: ignore mode change if it's just for clearing setuid/setgid bitsJeff Layton
If the ATTR_KILL_S*ID bits are set then any mode change is only for clearing the setuid/setgid bits. For CIFS, skip the mode change and let the server handle it. Signed-off-by: Jeff Layton <jlayton@redhat.com> Cc: Steven French <sfrench@us.ibm.com> Cc: Christoph Hellwig <hch@lst.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-17Slab API: remove useless ctor parameter and reorder parametersChristoph Lameter
Slab constructors currently have a flags parameter that is never used. And the order of the arguments is opposite to other slab functions. The object pointer is placed before the kmem_cache pointer. Convert ctor(void *object, struct kmem_cache *s, unsigned long flags) to ctor(struct kmem_cache *s, void *object) throughout the kernel [akpm@linux-foundation.org: coupla fixes] Signed-off-by: Christoph Lameter <clameter@sgi.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-08-18[CIFS] Check return code on failed allocCyrill Gorcunov
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com> Signed-off-by: Steve French <sfrench@us.ibm.com>
2007-07-26[CIFS] Fix hang in find_writable_fileSteve French
Caused by unneeded reopen during reconnect while spinlock held. Fixes kernel bugzilla bug #7903 Thanks to Lin Feng Shen for testing this, and Amit Arora for some nice problem determination to narrow this down. Acked-by: Dave Kleikamp <shaggy@us.ibm.com> Signed-off-by: Steve French <sfrench@us.ibm.com>
2007-07-20mm: Remove slab destructors from kmem_cache_create().Paul Mundt
Slab destructors were no longer supported after Christoph's c59def9f222d44bb7e2f0a559f2906191a0862d7 change. They've been BUGs for both slab and slub, and slob never supported them either. This rips out support for the dtor pointer from kmem_cache_create() completely and fixes up every single callsite in the kernel (there were about 224, not including the slab allocator definitions themselves, or the documentation references). Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-07-19Merge branch 'master' of /pub/scm/linux/kernel/git/torvalds/linux-2.6Steve French
Conflicts: fs/cifs/export.c
2007-07-19[CIFS] merge conflict in fs/cifs/export.cSteve French
Signed-off-by: Steve French <sfrench@us.ibm.com>
2007-07-18[CIFS] Allow disabling CIFS Unix Extensions as mount optionSteve French
Previously the only way to do this was to umount all mounts to that server, turn off a proc setting (/proc/fs/cifs/LinuxExtensionsEnabled). Fixes Samba bugzilla bug number: 4582 (and also 2008) Signed-off-by: Steve French <sfrench@us.ibm.com>
2007-07-17[CIFS] More whitespace/formatting fixes (noticed by checkpatch)Steve French
Signed-off-by: Steve French <sfrench@us.ibm.com>
2007-07-17knfsd: exportfs: add exportfs.h headerChristoph Hellwig
currently the export_operation structure and helpers related to it are in fs.h. fs.h is already far too large and there are very few places needing the export bits, so split them off into a separate header. [akpm@linux-foundation.org: fix cifs build] Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Neil Brown <neilb@suse.de> Cc: Steven French <sfrench@us.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-17Freezer: make kernel threads nonfreezable by defaultRafael J. Wysocki
Currently, the freezer treats all tasks as freezable, except for the kernel threads that explicitly set the PF_NOFREEZE flag for themselves. This approach is problematic, since it requires every kernel thread to either set PF_NOFREEZE explicitly, or call try_to_freeze(), even if it doesn't care for the freezing of tasks at all. It seems better to only require the kernel threads that want to or need to be frozen to use some freezer-related code and to remove any freezer-related code from the other (nonfreezable) kernel threads, which is done in this patch. The patch causes all kernel threads to be nonfreezable by default (ie. to have PF_NOFREEZE set by default) and introduces the set_freezable() function that should be called by the freezable kernel threads in order to unset PF_NOFREEZE. It also makes all of the currently freezable kernel threads call set_freezable(), so it shouldn't cause any (intentional) change of behaviour to appear. Additionally, it updates documentation to describe the freezing of tasks more accurately. [akpm@linux-foundation.org: build fixes] Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Acked-by: Nigel Cunningham <nigel@nigel.suspend2.net> Cc: Pavel Machek <pavel@ucw.cz> Cc: Oleg Nesterov <oleg@tv-sign.ru> Cc: Gautham R Shenoy <ego@in.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-16[CIFS] Typo in previous patchSteve French
Signed-off-by: Steve French <sfrench@us.ibm.com>
2007-07-16[CIFS] zero_user_page() conversionsEric
Signed-off-by: Eric Sandeen <sandeen@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Steve French <sfrench@us.ibm.com>
2007-07-16[CIFS] use simple_prepare_write to zero page dataNate
It's common for file systems to need to zero data on either side of a write, if a page is not Uptodate during prepare_write. It just so happens that simple_prepare_write() in libfs.c does exactly that, so we can avoid duplication and just call that function to zero page data. Signed-off-by: Nate Diller <nate.diller@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Steve French <sfrench@us.ibm.com>
2007-07-15[CIFS] Fix build break - inet.h not included when experimental ifdef offSteve French
Signed-off-by: Steve French <sfrench@us.ibm.com>
2007-07-15[CIFS] Add support for new POSIX unlinkSteve French
In the cleanup phase of the dbench test, we were noticing sharing violation followed by failed directory removals when dbench did not close the test files before the cleanup phase started. Using the new POSIX unlink, which Samba has supported for a few months, avoids this. Signed-off-by: Steve French <sfrench@us.ibm.com>
2007-07-13[CIFS] whitespace/formatting fixesSteve French
This should be the last big batch of whitespace/formatting fixes. checkpatch warnings for the cifs directory are down about 90% and many of the remaining ones are harder to remove or make the code harder to read. Signed-off-by: Steve French <sfrench@us.ibm.com>
2007-07-11[CIFS] Fix oops in cifs_create when nfsd server exports cifs mountSteve French
nfsd is passing null nameidata (probably the only one doing that) on call to create - cifs was missing one check for this. Note that running nfsd over a cifs mount requires specifying fsid on the nfs exports entry and requires mounting cifs with serverino mount option. Signed-off-by: Steve French <sfrench@us.ibm.com>
2007-07-10sendfile: remove .sendfile from filesystems that use generic_file_sendfile()Jens Axboe
They can use generic_file_splice_read() instead. Since sys_sendfile() now prefers that, there should be no change in behaviour. Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-10[CIFS] whitespace cleanupSteve French
More than halfway there Signed-off-by: Steve French <sfrench@us.ibm.com>
2007-07-09[CIFS] Fix packet signatures for NTLMv2 caseSteve French
Signed-off-by: Yehuda Sadeh Weinraub <Yehuda.Sadeh@expand.com> Signed-off-by: Steve French <sfrench@us.ibm.com>
2007-07-08[CIFS] more whitespace fixesSteve French
Signed-off-by: Steve French <sfrench@us.ibm.com>
2007-07-07[CIFS] more whitespace cleanupSteve French
Signed-off-by: Steve French <sfrench@us.ibm.com>
2007-07-06[CIFS] whitespace cleanupSteve French
Signed-off-by: Steve French <sfrench@us.ibm.com>
2007-07-06[CIFS] whitespace cleanupSteve French
checkpatch.pl redux Signed-off-by: Steve French <sfrench@us.ibm.com>
2007-07-06[CIFS] ipv6 support no longer experimentalJeff
Signed-off-by: Steve French <sfrench@us.ibm.com>
2007-07-06[CIFS] Mount should fail if server signing off but client mount option ↵Jeff
requires it Currently, if mount with a signing-enabled sec= option (e.g. sec=ntlmi), the kernel does a warning printk if the server doesn't support signing, and then proceeds without signatures. This is probably OK for people that think to look at the ring buffer, but seems wrong to me. If someone explicitly requests signing, we should error out if that request can't be satisfied. They can then reattempt the mount without signing if that's ok. Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Steve French <sfrench@us.ibm.com>
2007-06-28[CIFS] whitespace fixesSteve French
This changeset brought to you ... by patchcheck.pl Signed-off-by: Steve French <sfrench@us.ibm.com>
2007-06-28[CIFS] Fix sign mount option and sign proc config settingSteve French
We were checking the wrong (old) global variable to determine whether to override server and force signing on the SMB connection. Acked-by: Dave Kleikamp <shaggy@austin.ibm.com> Signed-off-by: Steve French <sfrench@us.ibm.com>
2007-06-27[CIFS] whitespace cleanupSteve French
Signed-off-by: Steve French <sfrench@us.ibm.com>
2007-06-25[CIFS] Do not allow signals in cifs_demultiplex_threadJeff
Switch from send_sig to force_sig and do not allow signal for this background thread (the signal is needed to wakeup the thread when blocked in the network stack). Signed-off-by: Jeff Layton <jlayton@readhat.com> Signed-off-by: Steve French <sfrench@us.ibm.com>
2007-06-24[CIFS] fix whitespaceSteve French
More whitespace problems found by checkpatch Signed-off-by: Steve French <sfrench@us.ibm.com>
2007-06-24[CIFS] Add in some missing flags and cifs README and TODO correctionsSteve French
Signed-off-by: Steve French <sfrench@us.ibm.com>
2007-06-08[CIFS] CIFS should honour umaskSteve French
This patch makes CIFS honour a process' umask like other filesystems. Of course the server is still free to munge the permissions if it wants to; but the client will send the "right" permissions to begin with. A few caveats: 1) It only applies to filesystems that have CAP_UNIX (aka support unix extensions) 2) It applies the correct mode to the follow up CIFSSMBUnixSetPerms() after remote creation When mode to CIFS/NTFS ACL mapping is complete we can do the same thing for that case for servers which do not support the Unix Extensions. Signed-off-by: Matt Keenen <matt@opcode-solutions.com> Signed-off-by: Steve French <sfrench@us.ibm.com>
2007-06-05[CIFS] Missing flag on negprot needed for some servers to force packet signingYehuda Sadeh Weinraub
A related signature issue that I came across. There's a bug in win2k that when NT error codes are not negotiated, the server doesn't response that signatures are mandatory. Since there's (currently) no way turn on signatures in such case, I had to force NT error codes, so that this bug will not occur Signed-off-by: Yehuda Sadeh Weinraub <Yehuda.Sadeh@expand.com> Signed-off-by: Steve French <sfrench@us.ibm.com>
2007-06-05[CIFS] whitespace cleanup part 2Steve French
Various coding style problems found by running the new checkpatch.pl script against fs/cifs. 3 more files fixed up. Signed-off-by: Steve French <sfrench@us.ibm.com>
2007-06-05[CIFS] whitespace cleanupSteve French
Various coding style problems found by running fs/cifs against the new checkpatch.pl script. Since there were too many to fit in one patch. Updated the first four files. Signed-off-by: Steve French <sfrench@us.ibm.com>
2007-06-04[CIFS] fix mempool destroy done in wrong order in cifs error pathAkinobu Mita
Slab cache used as memory pool can not be destroyed before the memory pool destruction. Because the memory pool still holds some objects and kmem_cache_destroy() says "Can't free all objects". Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com> Signed-off-by: Steve French <sfrench@us.ibm.com>
2007-05-24[CIFS] typo in previous patchSteve French
(also fixed missing space after if) Signed-off-by: Steve French <sfrench@us.ibm.com>
2007-05-23[CIFS] Fix oops on failed cifs mount (in kthread_stop)Steve French
If the cifs demultiplex thread wakes up and exits (zeroing server->tsk) before kthread_stop is called, the cifs_mount code could pass a null pointer to kthread_stop Thanks to akpm, Dave Young and Shaggy for suggesting earlier versions of this patch. CC: akpm@linux-foundatior.org Signed-off-by: Dave Young <hidave.darkstar@gmail.com> Signed-off-by: Dave Kleikamp <shaggy@linux.vnet.ibm.com> Signed-off-by: Steve French <sfrench@us.ibm.com>
2007-05-17Remove SLAB_CTOR_CONSTRUCTORChristoph Lameter
SLAB_CTOR_CONSTRUCTOR is always specified. No point in checking it. Signed-off-by: Christoph Lameter <clameter@sgi.com> Cc: David Howells <dhowells@redhat.com> Cc: Jens Axboe <jens.axboe@oracle.com> Cc: Steven French <sfrench@us.ibm.com> Cc: Michael Halcrow <mhalcrow@us.ibm.com> Cc: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp> Cc: Miklos Szeredi <miklos@szeredi.hu> Cc: Steven Whitehouse <swhiteho@redhat.com> Cc: Roman Zippel <zippel@linux-m68k.org> Cc: David Woodhouse <dwmw2@infradead.org> Cc: Dave Kleikamp <shaggy@austin.ibm.com> Cc: Trond Myklebust <trond.myklebust@fys.uio.no> Cc: "J. Bruce Fields" <bfields@fieldses.org> Cc: Anton Altaparmakov <aia21@cantab.net> Cc: Mark Fasheh <mark.fasheh@oracle.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Christoph Hellwig <hch@lst.de> Cc: Jan Kara <jack@ucw.cz> Cc: David Chinner <dgc@sgi.com> Cc: "David S. Miller" <davem@davemloft.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-08header cleaning: don't include smp_lock.h when not usedRandy Dunlap
Remove includes of <linux/smp_lock.h> where it is not used/needed. Suggested by Al Viro. Builds cleanly on x86_64, i386, alpha, ia64, powerpc, sparc, sparc64, and arm (all 59 defconfigs). Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-07slab allocators: Remove SLAB_DEBUG_INITIAL flagChristoph Lameter
I have never seen a use of SLAB_DEBUG_INITIAL. It is only supported by SLAB. I think its purpose was to have a callback after an object has been freed to verify that the state is the constructor state again? The callback is performed before each freeing of an object. I would think that it is much easier to check the object state manually before the free. That also places the check near the code object manipulation of the object. Also the SLAB_DEBUG_INITIAL callback is only performed if the kernel was compiled with SLAB debugging on. If there would be code in a constructor handling SLAB_DEBUG_INITIAL then it would have to be conditional on SLAB_DEBUG otherwise it would just be dead code. But there is no such code in the kernel. I think SLUB_DEBUG_INITIAL is too problematic to make real use of, difficult to understand and there are easier ways to accomplish the same effect (i.e. add debug code before kfree). There is a related flag SLAB_CTOR_VERIFY that is frequently checked to be clear in fs inode caches. Remove the pointless checks (they would even be pointless without removeal of SLAB_DEBUG_INITIAL) from the fs constructors. This is the last slab flag that SLUB did not support. Remove the check for unimplemented flags from SLUB. Signed-off-by: Christoph Lameter <clameter@sgi.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-05[CIFS] Fix typo in cifs readme from previous commitSteve French
Signed-off-by: Steve French <sfrench@us.ibm.com>
2007-05-05[CIFS] Make sec=none force an anonymous mountJeff Layton
We had a customer report that attempting to make CIFS mount with a null username (i.e. doing an anonymous mount) doesn't work. Looking through the code, it looks like CIFS expects a NULL username from userspace in order to trigger an anonymous mount. The mount.cifs code doesn't seem to ever pass a null username to the kernel, however. It looks also like the kernel can take a sec=none option, but it only seems to look at it if the username is already NULL. This seems redundant and effectively makes sec=none useless. The following patch makes sec=none force an anonymous mount. Signed-off-by: Steve French <sfrench@us.ibm.com>
2007-05-03[CIFS] Change semaphore to mutex for cifs lock_semRoland Dreier
Originally at http://lkml.org/lkml/2006/9/2/86 The recent change to "allow Windows blocking locks to be cancelled via a CANCEL_LOCK call" introduced a new semaphore in struct cifsFileInfo, lock_sem. However, semaphores used as mutexes are deprecated these days, and there's no reason to add a new one to the kernel. Therefore, convert lock_sem to a struct mutex (and also fix one indentation glitch on one of the lines changed anyway). Signed-off-by: Roland Dreier <roland@digitalvampire.org> Signed-off-by: Jan Engelhardt <jengelh@gmx.de> Signed-off-by: Steve French <sfrench@us.ibm.com>
2007-05-03[CIFS] Fix oops in reset_cifs_unix_caps on reconnectSteve French
Signed-off-by: Steve French <sfrench@us.ibm.com>
2007-04-30[CIFS] UID/GID override on CIFS mounts to SambaSteve French
When CIFS Unix Extensions are negotiated we get the Unix uid and gid owners of the file from the server (on the Unix Query Path Info levels), but if the server's uids don't match the client uid's users were having to disable the Unix Extensions (which turned off features they still wanted). The changeset patch allows users to override uid and/or gid for file/directory owner with a default uid and/or gid specified at mount (as is often done when mounting from Linux cifs client to Windows server). This changeset also displays the uid and gid used by default in /proc/mounts (if applicable). Also cleans up code by adding some of the missing spaces after "if" keywords per-kernel style guidelines (as suggested by Randy Dunlap when he reviewed the patch). Signed-off-by: Steve French <sfrench@us.ibm.com>
2007-04-26[CIFS] prefixpath mounts to servers supporting posix paths used wrong slashSteve French
Acked-by: Alexander Bokovoy <abokovoy@ru.ibm.com> Signed-off-by: Steve French <sfrench@us.ibm.com>
2007-04-26[CIFS] Update cifs version to 1.49Steve French
Signed-off-by: Steve French <sfrench@us.ibm.com>