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* [GFS2] Readpages supportSteven Whitehouse2006-05-0513-129/+254
| | | | | | | | | | | | | | | | | | This adds readpages support (and also corrects a small bug in the readpage error path at the same time). Hopefully this will improve performance by allowing GFS to submit larger lumps of I/O at a time. In order to simplify the setting of BH_Boundary, it currently gets set when we hit the end of a indirect pointer block. There is always a boundary at this point with the current allocation code. It doesn't get all the boundaries right though, so there is still room for improvement in this. See comments in fs/gfs2/ops_address.c for further information about readpages with GFS2. Signed-off-by: Steven Whitehouse
* [GFS2] Set d_ops for root inodeRobert S Peterson2006-05-051-0/+3
| | | | | | | | | | | | | | Well, I managed to track down the bug in gfs2 that was causing my grief. Below is a patch for the problem. Please incorporate as you see fit. Or should I say: as you see git. The problem was basically that you never set d_ops for the root inode, so the wrong hash algorithm was being used. But only for the root directory. Turns out that if I used subdirectories, it used the proper hash and my files were found just fine. Signed-off-by: Robert S Peterson <rpeterso@redhat.com> Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
* [DLM] fix grant_after_purge softlockupDavid Teigland2006-05-023-15/+30
| | | | | | | | | | | In dlm_grant_after_purge() we were holding a hash table read_lock while calling put_rsb() which potentially removes the rsb from the hash table, taking the same lock in write. Fix this by flagging rsb's ahead of time that have been purged. Then iteratively read_lock the hash table, find a flagged rsb, unlock, process rsb. Signed-off-by: David Teigland <teigland@redhat.com> Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
* [GFS2] Fix bug in writepage()Steven Whitehouse2006-05-021-1/+1
| | | | | | | | | As pointed out by Wendy Cheng, the logic in GFS2's writepage() function wasn't quite right with respect to invalidating pages when a file has been truncated. This patch fixes that. CC: Wendy Cheng <wcheng@redhat.com> Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
* [GFS2] Remove some unused codeSteven Whitehouse2006-04-285-315/+0
| | | | | | | Remove some of the unused code flagged up by Adrian Bunk. Cc: Adrian Bunk <bunk@stusta.de> Signed-off-by: Steven Whitehouse
* [GFS2] [-mm patch] fs/gfs2/: possible cleanupsAdrian Bunk2006-04-2822-63/+79
| | | | | | | | | | | | This patch contains the following possible cleanups: - make needlessly global code static - #if 0 unused functions - remove the following global function that was both unused and unimplemented: - super.c: gfs2_do_upgrade() Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
* [DLM] PATCH 3/3 dlm: show recover stateDavid Teigland2006-04-281-0/+13
| | | | | | | Expose the current recovery state in sysfs to help in debugging. Signed-off-by: David Teigland <teigland@redhat.com> Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
* [DLM] PATCH 2/3 dlm: lowcomms closeDavid Teigland2006-04-284-1/+24
| | | | | | | | | When a node is removed from a lockspace configuration, close our connection to it, clearing any remaining messages for it. Signed-off-by: David Teigland <teigland@redhat.com> Signed-off-by: Patrick Caulfield <pcaulfie@redhat.com> Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
* [DLM] PATCH 1/3 dlm: force free user lockspaceDavid Teigland2006-04-281-1/+1
| | | | | | | | Lockspaces created from user space should be forcibly freed without requiring any further user space interaction. Signed-off-by: David Teigland <teigland@redhat.com> Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
* [GFS2] Reordering in deallocation to avoid recursive lockingSteven Whitehouse2006-04-283-54/+49
| | | | | | | | | | | | | | | | | Despite my earlier careful search, there was a recursive lock left in the deallocation code. This removes it. It also should speed up deallocation be reducing the number of locking operations which take place by using two "try lock" operations on the two locks involved in inode deallocation which allows us to grab the locks out of order (compared with NFS which grabs the inode lock first and the iopen lock later). It is ok for us to fail while doing this since if it does fail it means that someone else is still using the inode and thus it wouldn't be possible to deallocate anyway. This fixes the bug reported to me by Rob Kenna. Cc: Rob Kenna <rkenna@redhat.com> Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
* Merge branch 'master'David Teigland2006-04-2721-234/+491
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| * [PATCH] LSM: add missing hook to do_compat_readv_writev()James Morris2006-04-261-0/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch addresses a flaw in LSM, where there is no mediation of readv() and writev() in for 32-bit compatible apps using a 64-bit kernel. This bug was discovered and fixed initially in the native readv/writev code [1], but was not fixed in the compat code. Thanks to Al for spotting this one. [1] http://lwn.net/Articles/154282/ Signed-off-by: James Morris <jmorris@namei.org> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
| * [PATCH] protect ext3 ioctl modifying append_only, immutable, etc. with i_mutexAl Viro2006-04-261-4/+14
| | | | | | | | | | | | | | | | | | All modifications of ->i_flags in inodes that might be visible to somebody else must be under ->i_mutex. That patch fixes ext3 ioctl() setting S_APPEND and friends. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
| * [PATCH] forgotten ->b_data in memcpy() call in ext3/resize.c (oopsable)Al Viro2006-04-261-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | sbi->s_group_desc is an array of pointers to buffer_head. memcpy() of buffer size from address of buffer_head is a bad idea - it will generate junk in any case, may oops if buffer_head is close to the end of slab page and next page is not mapped and isn't what was intended there. IOW, ->b_data is missing in that call. Fortunately, result doesn't go into the primary on-disk data structures, so only backup ones get crap written to them; that had allowed this bug to remain unnoticed until now. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
| * Merge branch 'splice' of git://brick.kernel.dk/data/git/linux-2.6-blockLinus Torvalds2006-04-261-73/+282
| |\ | | | | | | | | | | | | | | | | | | | | | | | | * 'splice' of git://brick.kernel.dk/data/git/linux-2.6-block: [PATCH] splice: add ->splice_write support for /dev/null [PATCH] splice: rearrange moving to/from pipe helpers [PATCH] Add support for the sys_vmsplice syscall [PATCH] splice: fix offset problems [PATCH] splice: fix min() warning
| | * [PATCH] splice: rearrange moving to/from pipe helpersJens Axboe2006-04-261-24/+11
| | | | | | | | | | | | | | | | | | We need these for people writing their own ->splice_read/write hooks. Signed-off-by: Jens Axboe <axboe@suse.de>
| | * [PATCH] Add support for the sys_vmsplice syscallJens Axboe2006-04-261-39/+253
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | sys_splice() moves data to/from pipes with a file input/output. sys_vmsplice() moves data to a pipe, with the input being a user address range instead. This uses an approach suggested by Linus, where we can hold partial ranges inside the pages[] map. Hopefully this will be useful for network receive support as well. Signed-off-by: Jens Axboe <axboe@suse.de>
| | * [PATCH] splice: fix offset problemsJens Axboe2006-04-261-19/+27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Make the move_from_pipe() actors return number of bytes processed, then move_from_pipe() can decide more cleverly when to move on to the next buffer. This fixes problems with pipe offset and differing file offset. Signed-off-by: Jens Axboe <axboe@suse.de>
| | * [PATCH] splice: fix min() warningAndrew Morton2006-04-261-1/+1
| | | | | | | | | | | | | | | Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Jens Axboe <axboe@suse.de>
| * | [fuse] fix race between checking and setting file->private_dataMiklos Szeredi2006-04-261-5/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | BKL does not protect against races if the task may sleep between checking and setting a value. So move checking of file->private_data near to setting it in fuse_fill_super(). Found by Al Viro. Signed-off-by: Miklos Szeredi <miklos@szeredi.hu>
| * | [fuse] fix deadlock between fuse_put_super() and request_end(), try #2Miklos Szeredi2006-04-261-2/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | A deadlock was possible, when the last reference to the superblock was held due to a background request containing a file reference. Releasing the file would release the vfsmount which in turn would release the superblock. Since sbput_sem is held during the fput() and fuse_put_super() tries to acquire this same semaphore, a deadlock results. The solution is to move the fput() outside the region protected by sbput_sem. Signed-off-by: Miklos Szeredi <miklos@szeredi.hu>
| * | Revert "[fuse] fix deadlock between fuse_put_super() and request_end()"Miklos Szeredi2006-04-263-36/+31
| |/ | | | | | | | | | | | | | | | | | | | | | | | | This reverts 73ce8355c243a434524a34c05cc417dd0467996e commit. It was wrong, because it didn't take into account the requirement, that iput() for background requests must be performed synchronously with ->put_super(), otherwise active inodes may remain after unmount. The right solution is to keep the sbput_sem and perform iput() within the locked region, but move fput() outside sbput_sem. Signed-off-by: Miklos Szeredi <miklos@szeredi.hu>
| * [CIFS] Fix compile error when CONFIG_CIFS_EXPERIMENTAL is undefinedSteve French2006-04-241-1/+4
| | | | | | | | | | Signed-off-by: Dave Kleikamp <shaggy@austin.ibm.com> Signed-off-by: Steve French <sfrench@us.ibm.com>
| * Merge master.kernel.org:/pub/scm/linux/kernel/git/sfrench/cifs-2.6-stableLinus Torvalds2006-04-2313-115/+138
| |\ | | | | | | | | | | | | | | | | | | | | | | | | * master.kernel.org:/pub/scm/linux/kernel/git/sfrench/cifs-2.6-stable: [CIFS] Fix typo in previous [CIFS] Readdir fixes to allow search to start at arbitrary position [CIFS] Use the kthread_ API instead of opencoding lots of hairy code for kernel [CIFS] Don't allow a backslash in a path component [CIFS] [CIFS] Do not take rename sem on most path based calls (during
| | * [CIFS] Fix typo in previousSteve French2006-04-231-1/+1
| | | | | | | | | | | | Signed-off-by: Steve French <sfrench@us.ibm.com>
| | * [CIFS] Readdir fixes to allow search to start at arbitrary positionSteve French2006-04-227-36/+74
| | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
| | * [CIFS] Use the kthread_ API instead of opencoding lots of hairy code for kernelSteve French2006-04-221-49/+50
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | thread creation and teardown. It does not move the cifsd thread handling to kthread due to problems found in testing with wakeup of threads blocked in the socket peek api, but the other cifs kernel threads now use kthread. Also cleanup cifs_init to properly unwind when thread creation fails. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Steve French <sfrench@us.ibm.com>
| | * [CIFS] Don't allow a backslash in a path componentSteve French2006-04-211-0/+14
| | | | | | | | | | | | | | | | | | | | | | | | Unless Posix paths have been negotiated, the backslash, "\", is not a valid character in a path component. Signed-off-by: Dave Kleikamp <shaggy@austin.ibm.com> Signed-off-by: Steve French <sfrench@us.ibm.com>
| | * [CIFS] [CIFS] Do not take rename sem on most path based calls (duringSteve French2006-04-217-30/+0
| | | | | | | | | | | | | | | | | | | | | | | | building of full path) to avoid hang rename/readdir hang Reported by Alan Tyson Signed-off-by: Steve French <sfrench@us.ibm.com>
| * | [PATCH] Fix reiserfs deadlockJan Kara2006-04-221-2/+3
| |/ | | | | | | | | | | | | | | | | | | | | | | | | | | reiserfs_cache_default_acl() should return whether we successfully found the acl or not. We have to return correct value even if reiserfs_get_acl() returns error code and not just 0. Otherwise callers such as reiserfs_mkdir() can unnecessarily lock the xattrs and later functions such as reiserfs_new_inode() fail to notice that we have already taken the lock and try to take it again with obvious consequences. Signed-off-by: Jan Kara <jack@suse.cz> Cc: <reiserfs-dev@namesys.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | [GFS2] Remove redundant casts to/from voidDavid Teigland2006-04-272-8/+7
| | | | | | | | Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
* | [DLM] lock_dlm recover_status patchDavid Teigland2006-04-263-9/+18
| | | | | | | | | | | | | | | | | | This saves the journal recovery result and makes it visible through sysfs. User space needs to know if the node actually recovered the journal or tried and gave up. Signed-off-by: David Teigland <teigland@redhat.com> Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
* | [GFS2] Remove GL_NEVER_RECURSE flagSteven Whitehouse2006-04-266-19/+14
| | | | | | | | | | | | | | There is no point in keeping this flag since recursion is not now allowed for any glock. Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
* | [GFS2] Don't do recursive locking in glock layerSteven Whitehouse2006-04-263-196/+46
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch changes the last user of recursive locking so that it no longer needs this feature and removes it from the glock layer. This makes the glock code a lot simpler and easier to understand. Its also a prerequsite to adding support for the AOP_TRUNCATED_PAGE return code (or at least it is if you don't want your brain to melt in the process) I've left in a couple of checks just in case there is some place else in the code which is still using this feature that I didn't spot yet, but they can probably be removed long term. Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
* | [GFS2] Update plock code in DLM locking moduleDavid Teigland2006-04-251-3/+3
| | | | | | | | | | | | | | We should be using fl_pid not fl_owner. Signed-off-by: David Teigland <teigland@redhat.com> Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
* | [DLM] Convert a semaphore to a completionPatrick Caulfield2006-04-251-10/+8
| | | | | | | | | | | | | | | | | | Convert a semaphore into a completion in device.c. Cc: David Teigland <teigland@redhat.com> Cc: Andrew Morton <akpm@osdl.org> Signed-off-by: Patrick Caulfield <pcaulfie@redhat.com> Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
* | [DLM] Update Kconfig in the light of comments on lkmlSteven Whitehouse2006-04-251-2/+1
| | | | | | | | | | | | | | | | | | We now depend on user selectable options rather than select them. There is no dependancy on SYSFS since this selection is independant of the DLM (even though it wouldn't be sensible to build the DLM without it) Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
* | [GFS2] Remove inherited flags from exported flags.Steven Whitehouse2006-04-251-14/+9
| | | | | | | | | | | | | | | | | | | | | | We don't need the inherited flags since this action can be implied by setting the flags on directories where they wouldn't otherwise make sense. It reduces the number of extra flags by two. Also updated the list of flags to take account of one extra ext2/3 flag. Cc: Andreas Dilger <adilger@clusterfs.com> Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
* | [GFS2] Tidy up Makefile & KconfigSteven Whitehouse2006-04-242-51/+17
| | | | | | | | | | | | | | | | | | | | | | | | | | Remove select of SYSFS as requested by Greg KH. Change whitespace to tabs rather than spaces in places where it was incorrect and removed 'default m' as suggested by Adrian Bunk. Reorganised Makefile as suggested by Sam Ravnborg. Cc: Sam Ravnborg <sam@ravnborg.org> Cc: Adrian Bunk <bunk@stusta.de> Cc: Greg KH <greg@kroah.com> Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
* | [GFS2] Tidy up daemon.cSteven Whitehouse2006-04-241-14/+9
| | | | | | | | | | | | | | | | As per Andrew Morton's comments, remove uneeded casts and use wait_event_interruptible() rather than open code the wait. Cc: Andrew Morton <akpm@osdl.org> Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
* | [GFS2] Tidy up dir code as per Christoph Hellwig's commentsSteven Whitehouse2006-04-243-72/+78
| | | | | | | | | | | | | | | | | | 1. Comment whitespace fix 2. Removed unused header files from dir.c 3. Split the gfs2_dir_get_buffer() function into two functions Cc: Christoph Hellwig <hch@infradead.org> Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
* | [GFS2] Move BUG() back into the header fileSteven Whitehouse2006-04-212-1/+1
| | | | | | | | | | | | | | In order to make the file and line number reporting work correctly, this has been moved back into the header file. Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
* | [GFS2] Add back missing BUG()Steven Whitehouse2006-04-211-0/+1
| | | | | | | | Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
* | [GFS2] sem -> mutex conversion in locking.cSteven Whitehouse2006-04-213-22/+20
| | | | | | | | | | | | | | Convert a semaphore to a mutex in locking.c and also tidy up one or two loose ends. Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
* | Merge branch 'master'Steven Whitehouse2006-04-2158-1106/+1758
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| * [PATCH] splice: fix smaller sized splice readsJens Axboe2006-04-201-1/+12
| | | | | | | | Signed-off-by: Jens Axboe <axboe@suse.de>
| * Merge git://git.linux-nfs.org/pub/linux/nfs-2.6Linus Torvalds2006-04-196-20/+15
| |\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * git://git.linux-nfs.org/pub/linux/nfs-2.6: SUNRPC: Dead code in net/sunrpc/auth_gss/auth_gss.c NFS: remove needless check in nfs_opendir() NFS: nfs_show_stats; for_each_possible_cpu(), not NR_CPUS NFS: make 2 functions static NFS,SUNRPC: Fix compiler warnings if CONFIG_PROC_FS & CONFIG_SYSCTL are unset NFS: fix PROC_FS=n compile error VFS: Fix another open intent Oops RPCSEC_GSS: fix leak in krb5 code caused by superfluous kmalloc
| | * NFS: remove needless check in nfs_opendir()Carsten Otte2006-04-191-3/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | Local variable res was initialized to 0 - no check needed here. Signed-off-by: Carsten Otte <cotte@de.ibm.com> Cc: Trond Myklebust <trond.myklebust@fys.uio.no> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
| | * NFS: nfs_show_stats; for_each_possible_cpu(), not NR_CPUSJohn Hawkes2006-04-191-4/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | Convert a for-loop that explicitly references "NR_CPUS" into the potentially more efficient for_each_possible_cpu() construct. Signed-off-by: John Hawkes <hawkes@sgi.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
| | * NFS: make 2 functions staticAdrian Bunk2006-04-191-1/+1
| | | | | | | | | | | | | | | | | | | | | Signed-off-by: Adrian Bunk <bunk@stusta.de> Cc: Trond Myklebust <trond.myklebust@fys.uio.no> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
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