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path: root/fs/cifs/file.c (follow)
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2007-10-25[CIFS] acl support part 6Steve French1-0/+31
Acked-by: Shirish Pargaonkar <shirishp@us.ibm.com> CC: Cyrill Gorcunov <gorcunov@gmail.com> Signed-off-by: Steve French <sfrench@us.ibm.com>
2007-10-12[CIFS] remove two sparse warningsSteve French1-2/+2
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com> Signed-off-by: Steve French <sfrench@us.ibm.com>
2007-10-02[CIFS] Reduce chance of list corruption in find_writable_fileSteve French1-15/+39
When find_writable_file is racing with close and the session to the server goes down, Shaggy noticed that there was a chance that an open file in the list of files off the inode could have been freed by close since cifs_reconnect can block (the spinlock thus not held). This means that we have to start over at the beginning of the list in some cases. There is a 2nd change that needs to be made later (pointed out by Jeremy Allison and Shaggy) in order to prevent cifs_close ever freeing the cifs per file info when a write is pending. Although we delay close from freeing this memory for sufficiently long for all known cases, ultimately on a very, very slow write overlapping a close pending we need to allow close to return (without freeing the cifs file info) and defer freeing the memory to be the responsibility of the (sloooow) write thread (presumably have to look at every place wrtPending is decremented - and add a flag for deferred free for after wrtPending goes to zero). Acked-by: Shaggy <shaggy@us.ibm.com> Acked-by: Shirish Pargaonkar <shirishp@us.ibm.com> Signed-off-by: Steve French <sfrench@us.ibm.com>
2007-09-11[CIFS] lock inode open file list in close in case racing with openSteve French1-0/+2
Harmless since it only protected turning off caching for the inode, but cleaner to lock around this in case we have a close racing with open. Signed-off-by: Shaggy <shaggy@us.ibm.com> CC: Cyrill Gorcunov <gorcunov@gmail.com> Signed-off-by: Steve French <sfrench@us.ibm.com>
2007-09-07[CIFS] Fix oops in find_writable_fileSteve French1-9/+28
There was a case in which find_writable_file was not waiting long enough under heavy stress when writepages was racing with close of the file handle being used by the write. Signed-off-by: Steve French <sfrench@us.ibm.com>
2007-08-24[CIFS] fix typo in previousSteve French1-1/+1
Signed-off-by: Steve French <sfrench@us.ibm.com>
2007-08-24[CIFS] Byte range unlock request to non-Unix server can unlock too muchJeff Layton1-1/+2
On a mount without posix extensions enabled, when an unlock request is made, the client can release more than is intended. To reproduce, on a CIFS mount without posix extensions enabled: 1) open file 2) do fcntl lock: start=0 len=1 3) do fcntl lock: start=2 len=1 4) do fcntl unlock: start=0 len=1 ...on the unlock call the client sends an unlock request to the server for both locks. The problem is a bad test in cifs_lock. Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Steve French <sfrench@us.ibm.com>
2007-07-26[CIFS] Fix hang in find_writable_fileSteve French1-10/+23
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>
2007-07-18[CIFS] Allow disabling CIFS Unix Extensions as mount optionSteve French1-3/+3
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 French1-2/+3
Signed-off-by: Steve French <sfrench@us.ibm.com>
2007-07-16[CIFS] use simple_prepare_write to zero page dataNate1-8/+1
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>
2007-07-13[CIFS] whitespace/formatting fixesSteve French1-10/+11
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 French1-1/+1
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>
2007-07-10[CIFS] whitespace cleanupSteve French1-120/+125
More than halfway there Signed-off-by: Steve French <sfrench@us.ibm.com>
2007-06-24[CIFS] Add in some missing flags and cifs README and TODO correctionsSteve French1-2/+7
Signed-off-by: Steve French <sfrench@us.ibm.com>
2007-05-08header cleaning: don't include smp_lock.h when not usedRandy Dunlap1-1/+0
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>
2007-05-03[CIFS] Change semaphore to mutex for cifs lock_semRoland Dreier1-7/+7
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>
2007-04-04[CIFS] Remove unnecessary parm to cifs_reopen_fileSteve French1-60/+26
Also expand debug entry to show which character on a failed Unicode mapping. Acked-by: Shaggy <shaggy@us.ibm.com> Signed-off-by: Steve French <sfrench@us.ibm.com>
2007-04-02[CIFS] Remove unnecessary checksChristoph Hellwig1-27/+2
file->f_path.dentry or file->f_path.dentry.d_inode can't be NULL since at least ten years, similar for all but very few arguments passed in from the VFS. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Steve French <sfrench@us.ibm.com>
2007-03-06[CIFS] cifs_prepare_write was incorrectly rereading page in some casesSteve French1-22/+40
Noticed by Shaggy. Signed-off-by: Shaggy <shaggy@us.ibm.com> Signed-off-by: Steve French <sfrench@us.ibm.com>
2007-02-26[CIFS] Fix locking problem around some cifs uses of i_size writeSteve French1-20/+23
Could cause hangs on smp systems in i_size_read on a cifs inode whose size has been previously simultaneously updated from different processes. Thanks to Brian Wang for some great testing/debugging on this hard problem. Fixes kernel bugzilla #7903 CC: Shirish Pargoankar <shirishp@us.ibm.com> CC: Shaggy <shaggy@us.ibm.com> Signed-off-by: Steve French <sfrench@us.ibm.com>
2007-02-17[CIFS] One line missing from previous commitSteve French1-2/+3
Signed-off-by: Steve French <sfrench@us.ibm.com>
2007-02-08[CIFS] Allow update of EOF on remote extend of fileSteve French1-1/+4
Signed-off-by: Steve French <sfrench@us.ibm.com>
2007-02-02[CIFS] Reduce cifs stack space usageSteve French1-3/+9
The two cifs functions that used the most stack according to "make checkstack" have been changed to use less stack. Thanks to jra and Shaggy for helpful ideas Signed-off-by: Steve French <sfrench@us.ibm.com> cc: jra@samba.org cc: shaggy@us.ibm.com
2006-12-23Fix up CIFS for "test_clear_page_dirty()" removalLinus Torvalds1-3/+23
This also adds he required page "writeback" flag handling, that cifs hasn't been doing and that the page dirty flag changes made obvious. Acked-by: Steve French <smfltc@us.ibm.com> Acked-by: Dave Kleikamp <shaggy@linux.vnet.ibm.com> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-12-10[PATCH] io-accounting-read-accounting cifs fixAndrew Morton1-0/+2
CIFS implements ->readpages and doesn't use read_cache_pages(). So wire the read IO accounting up within CIFS. Cc: Jay Lan <jlan@sgi.com> Cc: Shailabh Nagar <nagar@watson.ibm.com> Cc: Balbir Singh <balbir@in.ibm.com> Cc: Chris Sturtivant <csturtiv@sgi.com> Cc: Tony Ernst <tee@sgi.com> Cc: Guillaume Thouvenin <guillaume.thouvenin@bull.net> Cc: Steven French <sfrench@us.ibm.com> Cc: David Wright <daw@sgi.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-12-08[PATCH] cifs: change uses of f_{dentry, vfsmnt} to use f_pathJosef "Jeff" Sipek1-57/+57
Change all the uses of f_{dentry,vfsmnt} to f_path.{dentry,mnt} in the cifs filesystem. Signed-off-by: Josef "Jeff" Sipek <jsipek@cs.sunysb.edu> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-11-09[CIFS] Fix minor problem with previous patchSteve French1-1/+2
The patch NFS stress test generates flood of "close with pending write was missing an if Signed-off-by: Steve French <sfrench@us.ibm.com>
2006-11-07[CIFS] NFS stress test generates flood of "close with pending write" messagesSteve French1-2/+5
Informational/debug message was being logged too often. The error case of logging having to send a close with (presumably stuck on buggy server) pending writes is still logged. Signed-off-by: Steve French <sfrench@us.ibm.com>
2006-11-03[PATCH] cifs: ->readpages() fixesOGAWA Hirofumi1-22/+1
This just ignore the remaining pages, and will fix a forgot put_pages_list(). Signed-off-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp> Cc: Steven French <sfrench@us.ibm.com> Cc: Miklos Szeredi <miklos@szeredi.hu> Cc: Steven Whitehouse <swhiteho@redhat.com> Cc: Trond Myklebust <trond.myklebust@fys.uio.no> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-09-30[PATCH] BLOCK: Remove no-longer necessary linux/mpage.h inclusions [try #6]David Howells1-1/+0
Remove inclusions of linux/mpage.h that are no longer necessary due to the transfer of generic_writepages(). Signed-Off-By: David Howells <dhowells@redhat.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2006-09-21[CIFS] New POSIX locking code not setting rc properly to zero on successfulSteve French1-1/+2
unlock in case where server does not support POSIX locks and nobrl is not specified. Signed-off-by: Steve French <sfrench@us.ibm.com>
2006-08-11[CIFS]Jeremy Allison1-15/+80
Allow Windows blocking locks to be cancelled via a CANCEL_LOCK call. TODO - restrict this to servers that support NT_STATUS codes (Win9x will probably not support this call). Signed-off-by: Jeremy Allison <jra@samba.org> Signed-off-by: Steve French <sfrench@us.ibm.com> (cherry picked from 570d4d2d895569825d0d017d4e76b51138f68864 commit)
2006-08-11[CIFS] Do not time out posix brl requests when using new posix setfileinfoSteve French1-4/+2
request and do not time out slow requests to a server that is still responding well to other threads Suggested by jra of Samba team Signed-off-by: Steve French <sfrench@us.ibm.com> (cherry picked from 89b57148115479eef074b8d3f86c4c86c96ac969 commit)
2006-06-30typo fixes: aquire -> acquireAdrian Bunk1-1/+1
Signed-off-by: Adrian Bunk <bunk@stusta.de> Acked-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2006-06-28[PATCH] mark address_space_operations constChristoph Hellwig1-2/+2
Same as with already do with the file operations: keep them in .rodata and prevents people from doing runtime patching. Signed-off-by: Christoph Hellwig <hch@lst.de> Cc: Steven French <sfrench@us.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-26[CIFS] Remove calls to to take f_owner.lockIngo Molnar1-9/+0
CIFS takes/releases f_owner.lock - why? It does not change anything in the fowner state. Remove this locking. Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Steve French <sfrench@us.ibm.com>
2006-06-25Merge with /pub/scm/linux/kernel/git/torvalds/linux-2.6.gitSteve French1-14/+12
2006-06-23[PATCH] vfs: add lock owner argument to flush operationMiklos Szeredi1-1/+1
Pass the POSIX lock owner ID to the flush operation. This is useful for filesystems which don't want to store any locking state in inode->i_flock but want to handle locking/unlocking POSIX locks internally. FUSE is one such filesystem but I think it possible that some network filesystems would need this also. Also add a flag to indicate that a POSIX locking request was generated by close(), so filesystems using the above feature won't send an extra locking request in this case. Signed-off-by: Miklos Szeredi <miklos@szeredi.hu> Cc: Trond Myklebust <trond.myklebust@fys.uio.no> Cc: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-23[PATCH] writeback: fix range handlingOGAWA Hirofumi1-13/+11
When a writeback_control's `start' and `end' fields are used to indicate a one-byte-range starting at file offset zero, the required values of .start=0,.end=0 mean that the ->writepages() implementation has no way of telling that it is being asked to perform a range request. Because we're currently overloading (start == 0 && end == 0) to mean "this is not a write-a-range request". To make all this sane, the patch changes range of writeback_control. So caller does: If it is calling ->writepages() to write pages, it sets range (range_start/end or range_cyclic) always. And if range_cyclic is true, ->writepages() thinks the range is cyclic, otherwise it just uses range_start and range_end. This patch does, - Add LLONG_MAX, LLONG_MIN, ULLONG_MAX to include/linux/kernel.h -1 is usually ok for range_end (type is long long). But, if someone did, range_end += val; range_end is "val - 1" u64val = range_end >> bits; u64val is "~(0ULL)" or something, they are wrong. So, this adds LLONG_MAX to avoid nasty things, and uses LLONG_MAX for range_end. - All callers of ->writepages() sets range_start/end or range_cyclic. - Fix updates of ->writeback_index. It seems already bit strange. If it starts at 0 and ended by check of nr_to_write, this last index may reduce chance to scan end of file. So, this updates ->writeback_index only if range_cyclic is true or whole-file is scanned. Signed-off-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp> Cc: Nathan Scott <nathans@sgi.com> Cc: Anton Altaparmakov <aia21@cantab.net> Cc: Steven French <sfrench@us.ibm.com> Cc: "Vladimir V. Saveliev" <vs@namesys.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-07[CIFS] Add support for readdir to legacy serversSteve French1-2/+7
Fixes oops to OS/2 on ls and removes redundant NTCreateX calls to servers which do not support NT SMBs. Key operations to OS/2 work. Signed-off-by: Steve French <sfrench@us.ibm.com>
2006-06-01[CIFS] Do not overwrite aopsDave Kleikamp1-0/+16
cifs should not be overwriting an element of the aops structure, since the structure is shared by all cifs inodes. Instead define a separate aops structure to suit each purpose. I also took the liberty of replacing a hard-coded 4096 with PAGE_CACHE_SIZE Signed-off-by: Dave Kleikamp <shaggy@austin.ibm.com> Signed-off-by: Steven French <sfrench@us.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org>
2006-05-31[CIFS] Cleanup extra whitespace in dmesg logging. Update cifs change logSteve French1-9/+9
2006-05-30[[CIFS] Pass truncate open flag through on file open in case setattr failsSteve French1-0/+2
on set size to zero. Signed-off-by: Sebastian Voitzsch <sebastoam/vpotzscj@web.de> Signed-off-by: Steve French <sfrench@us.ibm.com>
2006-05-30[CIFS] Fix typos in previous fixSteve French1-2/+2
Signed-off-by: Steve French <sfrench@us.ibm.com>
2006-05-30[CIFS] ACPI suspend oopsSteve French1-2/+4
Wasn't able to reproduce a hard hang, but was able to get an oops if suspended the machine during a copy to the cifs mount. This led to some things hanging, including a "sync". Also got I/O errors when trying to access the mount afterwards (even when didn't see the oops), and had to unmount and remount in order to access the filesystem. This patch fixed the oops. Signed-off-by: Dave Kleikamp <shaggy@austin.ibm.com> Signed-off-by: Steve French <sfrench@us.ibm.com>
2006-05-30[CIFS] Fix new POSIX Locking for setting lock_type correctly on unlockSteve French1-2/+2
Signed-off-by: Steve French <sfrench@us.ibm.com>
2006-04-22[CIFS] Readdir fixes to allow search to start at arbitrary positionSteve French1-12/+20
in directory Also includes first part of fix to compensate for servers which forget to return . and .. as well as updates to changelog and cifs readme. Signed-off-by: Steve French <sfrench@us.ibm.com>
2006-04-21[CIFS] [CIFS] Do not take rename sem on most path based calls (duringSteve French1-2/+0
building of full path) to avoid hang rename/readdir hang Reported by Alan Tyson Signed-off-by: Steve French <sfrench@us.ibm.com>
2006-03-31Merge with /pub/scm/linux/kernel/git/torvalds/linux-2.6.gitSteve French1-4/+6
Signed-off-by: Steve French <sfrench@us.ibm.com>
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