- 30 9月, 2010 2 次提交
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由 Stefan Metzmacher 提交于
This is the start for an implementation of "Minshall+French Symlinks" (see http://wiki.samba.org/index.php/UNIX_Extensions#Minshall.2BFrench_symlinks). Signed-off-by: NStefan Metzmacher <metze@samba.org> Signed-off-by: NSteve French <sfrench@us.ibm.com>
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由 Ben Greear 提交于
When using multi-homed machines, it's nice to be able to specify the local IP to use for outbound connections. This patch gives cifs the ability to bind to a particular IP address. Usage: mount -t cifs -o srcaddr=192.168.1.50,user=foo, ... Usage: mount -t cifs -o srcaddr=2002::100:1,user=foo, ... Acked-by: NJeff Layton <jlayton@redhat.com> Acked-by: NDr. David Holder <david.holder@erion.co.uk> Signed-off-by: NBen Greear <greearb@candelatech.com> Signed-off-by: NSteve French <sfrench@us.ibm.com>
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- 10 8月, 2010 2 次提交
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由 Al Viro 提交于
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
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由 Al Viro 提交于
... and let iput_final() do the actual eviction or retention Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
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- 06 8月, 2010 1 次提交
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由 Wang Lei 提交于
Separate out the DNS resolver key type from the CIFS filesystem into its own module so that it can be made available for general use, including the AFS filesystem module. This facility makes it possible for the kernel to upcall to userspace to have it issue DNS requests, package up the replies and present them to the kernel in a useful form. The kernel is then able to cache the DNS replies as keys can be retained in keyrings. Resolver keys are of type "dns_resolver" and have a case-insensitive description that is of the form "[<type>:]<domain_name>". The optional <type> indicates the particular DNS lookup and packaging that's required. The <domain_name> is the query to be made. If <type> isn't given, a basic hostname to IP address lookup is made, and the result is stored in the key in the form of a printable string consisting of a comma-separated list of IPv4 and IPv6 addresses. This key type is supported by userspace helpers driven from /sbin/request-key and configured through /etc/request-key.conf. The cifs.upcall utility is invoked for UNC path server name to IP address resolution. The CIFS functionality is encapsulated by the dns_resolve_unc_to_ip() function, which is used to resolve a UNC path to an IP address for CIFS filesystem. This part remains in the CIFS module for now. See the added Documentation/networking/dns_resolver.txt for more information. Signed-off-by: NWang Lei <wang840925@gmail.com> Signed-off-by: NDavid Howells <dhowells@redhat.com> Acked-by: NJeff Layton <jlayton@redhat.com> Signed-off-by: NSteve French <sfrench@us.ibm.com>
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- 02 8月, 2010 2 次提交
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由 Suresh Jayaraman 提交于
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: NSuresh Jayaraman <sjayaraman@suse.de> Signed-off-by: NSteve French <sfrench@us.ibm.com>
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由 Suresh Jayaraman 提交于
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: NSuresh Jayaraman <sjayaraman@suse.de> Signed-off-by: NSteve French <sfrench@us.ibm.com>
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- 23 7月, 2010 2 次提交
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由 Tejun Heo 提交于
Workqueue can now handle high concurrency. Use system_nrt_wq instead of slow-work. * Updated is_valid_oplock_break() to not call cifs_oplock_break_put() as advised by Steve French. It might cause deadlock. Instead, reference is increased after queueing succeeded and cifs_oplock_break() briefly grabs GlobalSMBSeslock before putting the cfile to make sure it doesn't put before the matching get is finished. * Anton Blanchard reported that cifs conversion was using now gone system_single_wq. Use system_nrt_wq which provides non-reentrance guarantee which is enough and much better. Signed-off-by: NTejun Heo <tj@kernel.org> Acked-by: NSteve French <sfrench@samba.org> Cc: Anton Blanchard <anton@samba.org>
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由 David Howells 提交于
Fix the security problem in the CIFS filesystem DNS lookup code in which a malicious redirect could be installed by a random user by simply adding a result record into one of their keyrings with add_key() and then invoking a CIFS CFS lookup [CVE-2010-2524]. This is done by creating an internal keyring specifically for the caching of DNS lookups. To enforce the use of this keyring, the module init routine creates a set of override credentials with the keyring installed as the thread keyring and instructs request_key() to only install lookup result keys in that keyring. The override is then applied around the call to request_key(). This has some additional benefits when a kernel service uses this module to request a key: (1) The result keys are owned by root, not the user that caused the lookup. (2) The result keys don't pop up in the user's keyrings. (3) The result keys don't come out of the quota of the user that caused the lookup. The keyring can be viewed as root by doing cat /proc/keys: 2a0ca6c3 I----- 1 perm 1f030000 0 0 keyring .dns_resolver: 1/4 It can then be listed with 'keyctl list' by root. # keyctl list 0x2a0ca6c3 1 key in keyring: 726766307: --alswrv 0 0 dns_resolver: foo.bar.com Signed-off-by: NDavid Howells <dhowells@redhat.com> Reviewed-and-Tested-by: NJeff Layton <jlayton@redhat.com> Acked-by: NSteve French <smfrench@gmail.com> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 12 6月, 2010 1 次提交
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由 Jeff Layton 提交于
The standard behavior for drop_inode is to delete the inode when the last reference to it is put and the nlink count goes to 0. This helps keep inodes that are still considered "not deleted" in cache as long as possible even when there aren't dentries attached to them. When server inode numbers are disabled, it's not possible for cifs_iget to ever match an existing inode (since inode numbers are generated via iunique). In this situation, cifs can keep a lot of inodes in cache that will never be used again. Implement a drop_inode routine that deletes the inode if server inode numbers are disabled on the mount. This helps keep the cifs inode caches down to a more manageable size when server inode numbers are disabled. Signed-off-by: NJeff Layton <jlayton@redhat.com> Signed-off-by: NSteve French <sfrench@us.ibm.com>
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- 12 5月, 2010 1 次提交
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由 Steve French 提交于
CIFS has stubs for XFS-style quotas without an actual implementation backing them, hidden behind a config option not visible in Kconfig. Remove these stubs for now as the quota operations will see some major changes and this code simply gets in the way. Signed-off-by: NChristoph Hellwig <hch@lst.de> Reviewed-by: NJeff Layton <jlayton@samba.org> Signed-off-by: NJan Kara <jack@suse.cz> Signed-off-by: NSteve French <sfrench@us.ibm.com>
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- 06 5月, 2010 1 次提交
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由 Steve French 提交于
CC: Jeff Layton <jlayton@redhat.com> Signed-off-by: NSteve French <sfrench@us.ibm.com>
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- 27 4月, 2010 2 次提交
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由 Steve French 提交于
On lease break we were breaking to readonly leases always even if write requested. Also removed experimental ifdef around setlease code Signed-off-by: NSteve French <sfrench@us.ibm.com>
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由 Jeff Layton 提交于
...since that more accurately describes what that variable holds. Signed-off-by: NJeff Layton <jlayton@redhat.com> Signed-off-by: NSteve French <sfrench@us.ibm.com>
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- 22 4月, 2010 1 次提交
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由 Jens Axboe 提交于
This ensures that dirty data gets flushed properly. Signed-off-by: NJens Axboe <jens.axboe@oracle.com>
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- 21 4月, 2010 1 次提交
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由 Joe Perches 提交于
Neaten cERROR and cFYI macros, reduce text space ~2.5K Convert '__FILE__ ": " fmt' to '"%s: " fmt', __FILE__' to save text space Surround macros with do {} while Add parentheses to macros Make statement expression macro from macro with assign Remove now unnecessary parentheses from cFYI and cERROR uses defconfig with CIFS support old $ size fs/cifs/built-in.o text data bss dec hex filename 156012 1760 148 157920 268e0 fs/cifs/built-in.o defconfig with CIFS support old $ size fs/cifs/built-in.o text data bss dec hex filename 153508 1760 148 155416 25f18 fs/cifs/built-in.o allyesconfig old: $ size fs/cifs/built-in.o text data bss dec hex filename 309138 3864 74824 387826 5eaf2 fs/cifs/built-in.o allyesconfig new $ size fs/cifs/built-in.o text data bss dec hex filename 305655 3864 74824 384343 5dd57 fs/cifs/built-in.o Signed-off-by: NJoe Perches <joe@perches.com> Signed-off-by: NSteve French <sfrench@us.ibm.com>
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- 27 3月, 2010 1 次提交
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由 Pavel Shilovsky 提交于
without mmap functions in file_ops OpenOffice can't save changes in existing document. The same situation you can see with gedit. Also, a.out format of files can't be executed without mmap. Signed-off-by: NPavel Shilovsky <piastryyy@gmail.com> Reviewed-by: NJeff Layton <jlayton@redhat.com> Signed-off-by: NSteve French <sfrench@us.ibm.com>
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- 10 3月, 2010 1 次提交
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由 Jeff Layton 提交于
...to allow updating inode attributes on an existing inode by filehandle. Change mmap and llseek codepaths to use that instead of cifs_revalidate_dentry since they have a filehandle readily available. Signed-off-by: NJeff Layton <jlayton@redhat.com> Signed-off-by: NSteve French <sfrench@us.ibm.com>
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- 06 3月, 2010 1 次提交
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由 Jeff Layton 提交于
cifs_revalidate is renamed to cifs_revalidate_dentry as a later patch will add a by-filehandle variant. Add a new "invalid_mapping" flag to the cifsInodeInfo that indicates that the pagecache is considered invalid. Add a new routine to check inode attributes whenever they're updated and set that flag if the inode has changed on the server. cifs_revalidate_dentry is then changed to just update the attrcache if needed and then to zap the pagecache if it's not valid. There are some other behavior changes in here as well. Open files are now allowed to have their caches invalidated. I see no reason why we'd want to keep stale data around just because a file is open. Also, cifs_revalidate_cache uses the server_eof for revalidating the file size since that should more closely match the size of the file on the server. Signed-off-by: NJeff Layton <jlayton@redhat.com> Signed-off-by: NSteve French <sfrench@us.ibm.com>
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- 07 12月, 2009 1 次提交
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由 Steve French 提交于
openoffice and gedit failed with 'direct' options Signed-off-by: NPavel Shilovsky <piastryyy@gmail.com> Signed-off-by: NSteve French <sfrench@us.ibm.com>
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- 21 11月, 2009 1 次提交
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由 David Howells 提交于
As of the patch: SLOW_WORK: Wait for outstanding work items belonging to a module to clear Wait for outstanding slow work items belonging to a module to clear when unregistering that module as a user of the facility. This prevents the put_ref code of a work item from being taken away before it returns. slow_work_register_user() takes a module pointer as an argument. CIFS must now pass THIS_MODULE as that argument, lest the following error be observed: fs/cifs/cifsfs.c: In function 'init_cifs': fs/cifs/cifsfs.c:1040: error: too few arguments to function 'slow_work_register_user' Signed-off-by: NDavid Howells <dhowells@redhat.com>
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- 25 9月, 2009 2 次提交
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由 Steve French 提交于
Acked-by: NJeff Layton <jlayton@redhat.com> Signed-off-by: NSteve French <sfrench@us.ibm.com>
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由 Jeff Layton 提交于
This is the fourth respin of the patch to convert oplock breaks to use the slow_work facility. A customer of ours was testing a backport of one of the earlier patchsets, and hit a "Busy inodes after umount..." problem. An oplock break job had raced with a umount, and the superblock got torn down and its memory reused. When the oplock break job tried to dereference the inode->i_sb, the kernel oopsed. This patchset has the oplock break job hold an inode and vfsmount reference until the oplock break completes. With this, there should be no need to take a tcon reference (the vfsmount implicitly holds one already). Currently, when an oplock break comes in there's a chance that the oplock break job won't occur if the allocation of the oplock_q_entry fails. There are also some rather nasty races in the allocation and handling these structs. Rather than allocating oplock queue entries when an oplock break comes in, add a few extra fields to the cifsFileInfo struct. Get rid of the dedicated cifs_oplock_thread as well and queue the oplock break job to the slow_work thread pool. This approach also has the advantage that the oplock break jobs can potentially run in parallel rather than be serialized like they are today. Signed-off-by: NJeff Layton <jlayton@redhat.com> Signed-off-by: NSteve French <sfrench@us.ibm.com>
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- 24 9月, 2009 1 次提交
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由 Thomas Gleixner 提交于
Most call sites of unload_nls() do: if (nls) unload_nls(nls); Check the pointer inside unload_nls() like we do in kfree() and simplify the call sites. Signed-off-by: NThomas Gleixner <tglx@linutronix.de> Cc: Steve French <sfrench@us.ibm.com> Cc: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp> Cc: Roman Zippel <zippel@linux-m68k.org> Cc: Dave Kleikamp <shaggy@linux.vnet.ibm.com> Cc: Petr Vandrovec <vandrove@vc.cvut.cz> Cc: Anton Altaparmakov <aia21@cantab.net> Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
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- 22 9月, 2009 1 次提交
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由 Alexey Dobriyan 提交于
Signed-off-by: NAlexey Dobriyan <adobriyan@gmail.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 02 9月, 2009 2 次提交
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由 Jeff Layton 提交于
Right now, the GlobalOplock_Q is protected by the GlobalMid_Lock. That lock is also used for completely unrelated purposes (mostly for managing the global mid queue). Give the list its own dedicated spinlock (cifs_oplock_lock) and rename the list to cifs_oplock_list to eliminate the camel-case. Signed-off-by: NJeff Layton <jlayton@redhat.com> Signed-off-by: NSteve French <sfrench@us.ibm.com>
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由 Jeff Layton 提交于
Minor nit: we already have a tcon pointer so we don't need to dereference cifs_sb again. Also initialize the vars in the declaration. Reported-by: NPeter Staubach <staubach@redhat.com> Signed-off-by: NJeff Layton <jlayton@redhat.com> Signed-off-by: NSteve French <sfrench@us.ibm.com>
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- 04 8月, 2009 1 次提交
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由 Jeff Layton 提交于
Since forceuid is the default, we now need to show when it's disabled. Signed-off-by: NJeff Layton <jlayton@redhat.com> Signed-off-by: NSteve French <sfrench@us.ibm.com>
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- 10 7月, 2009 1 次提交
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由 Jeff Layton 提交于
cifs: remove cifsInodeInfo->inUse counter It was purported to be a refcounter of some sort, but was never used that way. It never served any purpose that wasn't served equally well by the I_NEW flag. Signed-off-by: NJeff Layton <jlayton@redhat.com> Reviewed-by: NChristoph Hellwig <hch@lst.de> Signed-off-by: NSteve French <sfrench@us.ibm.com>
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- 26 6月, 2009 1 次提交
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由 Steve French 提交于
The lock_kernel call moved into the fs for umount_begin is not needed. This adds a check to make sure we don't call umount_begin twice on the same fs. umount_begin for cifs is probably not needed and may eventually be able to be removed, but in the meantime this smaller patch is safe and gets rid of the bkl from this path which provides some benefit. Acked-by: Jeff Layton <redhat.com> Signed-off-by: NSteve French <sfrench@us.ibm.com>
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- 25 6月, 2009 1 次提交
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由 Jeff Layton 提交于
cifs: fix problems with earlier patches cifs_show_address hasn't been introduced yet, and fix a typo that was silently fixed by a later patch in the series. Signed-off-by: NJeff Layton <jlayton@redhat.com> Signed-off-by: NSteve French <sfrench@us.ibm.com>
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- 15 6月, 2009 1 次提交
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由 Jeff Layton 提交于
Move address display into a new function and display the scopeid as part of the address in /proc/mounts. Signed-off-by: NJeff Layton <jlayton@redhat.com> Signed-off-by: NSteve French <sfrench@us.ibm.com>
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- 13 6月, 2009 2 次提交
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由 Jeff Layton 提交于
Signed-off-by: NJeff Layton <jlayton@redhat.com> Signed-off-by: NSteve French <sfrench@us.ibm.com>
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由 Jeff Layton 提交于
show_options is always called with the namespace_sem held. Therefore we don't need to worry about the vfsmount being NULL, or it vanishing while the function is running. By the same token, there's no need to worry about the superblock, tcon, smb or tcp sessions being NULL on entry. Signed-off-by: NJeff Layton <jlayton@redhat.com> Signed-off-by: NSteve French <sfrench@us.ibm.com>
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- 12 6月, 2009 1 次提交
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由 Christoph Hellwig 提交于
Move BKL into ->put_super from the only caller. A couple of filesystems had trivial enough ->put_super (only kfree and NULLing of s_fs_info + stuff in there) to not get any locking: coda, cramfs, efs, hugetlbfs, omfs, qnx4, shmem, all others got the full treatment. Most of them probably don't need it, but I'd rather sort that out individually. Preferably after all the other BKL pushdowns in that area. [AV: original used to move lock_super() down as well; these changes are removed since we don't do lock_super() at all in generic_shutdown_super() now] [AV: fuse, btrfs and xfs are known to need no damn BKL, exempt] Signed-off-by: NChristoph Hellwig <hch@lst.de> Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
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- 28 5月, 2009 1 次提交
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由 Jeff Layton 提交于
The current cifs_iget isn't suitable for anything but the root inode. Rename it with a more appropriate name. Signed-off-by: NJeff Layton <jlayton@redhat.com> Reviewed-by: NChristoph Hellwig <hch@lst.de> Signed-off-by: NSteve French <sfrench@us.ibm.com>
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- 09 5月, 2009 2 次提交
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由 Al Viro 提交于
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
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由 Alessio Igor Bogani 提交于
Push BKL down into ->umount_begin() Signed-off-by: NAlessio Igor Bogani <abogani@texware.it> Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
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- 17 4月, 2009 2 次提交
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由 Jeff Layton 提交于
cifs: remove dnotify thread code Al Viro recently removed the dir_notify code from the kernel along with the CIFS code that used it. We can also get rid of the dnotify thread as well. In actuality, it never had anything to do with dir_notify anyway. All it did was unnecessarily wake up all the tasks waiting on the response queues every 15s. Previously that happened to prevent tasks from hanging indefinitely when the server went unresponsive, but we put those to sleep with proper timeouts now so there's no reason to keep this around. Signed-off-by: NJeff Layton <jlayton@redhat.com> Signed-off-by: NSteve French <sfrench@us.ibm.com>
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由 Jeff Layton 提交于
This is the fourth version of this patch: The first three generated a compiler warning asking for explicit curly braces. The first two didn't handle update the size correctly when writes that didn't start at the eof were done. The first patch also didn't update the size correctly when it explicitly set via truncate(). This patch adds code to track the client's current understanding of the size of the file on the server separate from the i_size, and then to use this info to semi-intelligently set the timeout for writes past the EOF. This helps prevent timeouts when trying to write large, sparse files on windows servers. Signed-off-by: NJeff Layton <jlayton@redhat.com> Signed-off-by: NSteve French <sfrench@us.ibm.com>
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