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* [PATCH] fix file countingDipankar Sarma2006-03-082-33/+56
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | I have benchmarked this on an x86_64 NUMA system and see no significant performance difference on kernbench. Tested on both x86_64 and powerpc. The way we do file struct accounting is not very suitable for batched freeing. For scalability reasons, file accounting was constructor/destructor based. This meant that nr_files was decremented only when the object was removed from the slab cache. This is susceptible to slab fragmentation. With RCU based file structure, consequent batched freeing and a test program like Serge's, we just speed this up and end up with a very fragmented slab - llm22:~ # cat /proc/sys/fs/file-nr 587730 0 758844 At the same time, I see only a 2000+ objects in filp cache. The following patch I fixes this problem. This patch changes the file counting by removing the filp_count_lock. Instead we use a separate percpu counter, nr_files, for now and all accesses to it are through get_nr_files() api. In the sysctl handler for nr_files, we populate files_stat.nr_files before returning to user. Counting files as an when they are created and destroyed (as opposed to inside slab) allows us to correctly count open files with RCU. Signed-off-by: Dipankar Sarma <dipankar@in.ibm.com> Cc: "Paul E. McKenney" <paulmck@us.ibm.com> Cc: "David S. Miller" <davem@davemloft.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] udf: fix uid/gid options and add uid/gid=ignore and forget optionsPhillip Susi2006-03-083-5/+33
| | | | | | | | | | | | | | | | | | | | Fix a bug in udf where it would write uid/gid = 0 to the disk for files owned by the id given with the uid=/gid= mount options. It also adds 4 new mount options: uid/gid=forget and uid/gid=ignore. Without any options the id in core and on disk always match. Giving uid/gid=nnn specifies a default ID to be used in core when the on disk ID is -1. uid/gid=ignore forces the in core ID to allways be used no matter what the on disk ID is. uid/gid=forget forces the on disk ID to always be written out as -1. The use of these options allows you to override ownerships on a disk or disable ownwership information from being written, allowing the media to be used portably between different computers and possibly different users without permissions issues that would require root to correct. Signed-off-by: Phillip Susi <psusi@cfl.rr.com> Cc: Pekka Enberg <penberg@cs.helsinki.fi> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* Mark the pipe file operations staticLinus Torvalds2006-03-081-3/+3
| | | | | | They aren't used (nor even really usable) outside of pipe.c anyway Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* Simplify fifo_open() locking logicLinus Torvalds2006-03-071-6/+1
| | | | | | | | We don't do interruptible waits for the pipe mutex anywhere else any more either, so don't do it in fifo_open() either. Acked-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] smaps: shared fixNick Piggin2006-03-061-5/+4
| | | | | | | | | | | | | | | | | | The point of the smaps "shared" is to count the number of pages that are mapped by more than one process, according to Mauricio Lin. However, smaps uses page_count for this, so it will return a false positive for every page that is mapped by just that one process, which is also in pagecache or swapcache. There are false positive situations for anonymous pages not in swapcache as well: - page reclaim, migration - get_user_pages (eg. direct-io, ptrace) Use page_mapcount instead, to count the number of mappings to the page. Use vm_normal_page so that weird things like /dev/mem aren't counted either. Signed-off-by: Nick Piggin <npiggin@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] smaps: hugepages fixNick Piggin2006-03-061-1/+1
| | | | | | | | | smaps doesn't have a hugepage pagetable walker. Skip walking hugepage vmas. Signed-off-by: Nick Piggin <npiggin@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] ramfs needs to update directory m/ctime on symlinkPeter Staubach2006-03-061-0/+1
| | | | | | | | | | | | | | | ramfs neglects to update the directory mtime and ctime fields when creating a new symbolic link. Ramfs was modified in 2.6.15 to update these fields when other types of entries are created. The symlink support is separate from that other support, so that change did not cover quite all of the possibilities. All of the directory content manipulation entry points now seem to be covered with respect to these time field updates. Signed-off-by: Peter Staubach <staubach@redhat.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] cramfs mounts provide corrupted content since 2.6.15Dave Johnson2006-03-061-31/+29
| | | | | | | | | | | | | | | | Fix handling of cramfs images created by util-linux containing empty regular files. Images created by cramfstools 1.x were ok. Fill out inode contents in cramfs_iget5_set() instead of get_cramfs_inode() to prevent issues if cramfs_iget5_test() is called with I_LOCK|I_NEW still set. Signed-off-by: Dave Johnson <djohnson+linux-kernel@sw.starentnetworks.com> Cc: Olaf Hering <olh@suse.de> Cc: Chris Mason <mason@suse.com> Cc: Andreas Gruenbacher <agruen@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [CIFS] Always match oplock break (cache notification) to the right tcpSteve French2006-03-053-4/+4
| | | | | | | | | | | | | | | | | | | | session when multiply mounted. Fixes slow response when cifs client is mounted to shares on multiple servers and oplock break occurs (usually due to attempt to multiply open a file). When treeids on mutiple mounted shares match and we find the wrong match first, we searched for the wrong cached files to send oplock break response for which usually meant that no matching file was found and thus the server would have to timeout the notification. Oplock break timeout is about 20 seconds on some servers so this could cause significantly slower performance on file open calls in a few cases (in particular when multiple shares are mounted from multiple servers, tree ids match, and we have a cached file which is later opened multiple times). This was the most important of the bugs that was found and fixed at Connectathon (interoperability testing event) this week. Acked-by: Shaggy (shaggy@austin.ibm.com) Signed-off-by: Steve French (sfrench@us.ibm.com)
* [PATCH] reiserfs: fix unaligned bitmap usageJeff Mahoney2006-03-021-4/+4
| | | | | | | | | | | | | | | The bitmaps associated with generation numbers for directory entries are declared as an array of ints. On some platforms, this causes alignment exceptions. The following patch uses the standard bitmap declaration macros to declare the bitmaps, fixing the problem. Originally from Takashi Iwai. Signed-off-by: Takashi Iwai <tiwai@suse.de> Acked-by: Jeff Mahoney <jeffm@suse.com> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] reiserfs: do not check if unsigned < 0Vladimir V. Saveliev2006-03-023-15/+10
| | | | | | | | | | | This patch fixes bugs in reiserfs where unsigned integers were checked whether they are less then 0. Signed-off-by: Vladimir V. Saveliev <vs@namesys.com> Cc: Neil Brown <neilb@cse.unsw.edu.au> Signed-off-by: Hans Reiser <reiser@namesys.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] v9fs: simplify fid mappingEric Van Hensbergen2006-03-024-126/+15
| | | | | | | | | | | | | | | | | | | | v9fs has been plagued by an over-complicated approach trying to map Linux dentry semantics to Plan 9 fid semantics. Our previous approach called for aggressive flushing of the dcache resulting in several problems (including wierd cwd behavior when running /bin/pwd). This patch dramatically simplifies our handling of this fid management. Fids will not be clunked as promptly, but the new approach is more functionally correct. We now clunk un-open fids only when their dentry ref_count reaches 0 (and d_delete is called). Another simplification is we no longer seek to match fids to the process-id or uid of the action initiator. The uid-matching will need to be revisited when we fix the security model. Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] v9fs: fix bug in atomic create open fixEric Van Hensbergen2006-03-021-2/+5
| | | | | | | | | | Lucho's atomic create+open fix had a bug in the super block initialization causing all mounts to fail. He was freeing an fcall too early. This patch fixes that oversight. Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] v9fs: fix atomic create openLatchesar Ionkov2006-03-026-296/+379
| | | | | | | | | | | | | | In order to assure atomic create+open v9fs stores the open fid produced by v9fs_vfs_create in the dentry, from where v9fs_file_open retrieves it and associates it with the open file. This patch modifies v9fs to use nameidata.intent.open values to do the atomic create+open. Signed-off-by: Latchesar Ionkov <lucho@ionkov.net> Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] ocfs2: use hlists for lockres hashMark Fasheh2006-03-015-45/+41
| | | | | | | Switch from list_head to hlist_head. Make the size of the hash dependent upon the allocated area, rather than a constant. Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
* [PATCH] ocfs2: added source addr to bind() in o2net_start_connect()Sunil Mushran2006-03-011-2/+12
| | | | | | | to prevent confusion when a virtual ip is created on the same interface Signed-off-by: Sunil Mushran <sunil.mushran@oracle.com> Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
* ocfs2: Respond to on-disk corruption in the extent map code.Joel Becker2006-03-011-2/+36
| | | | | | | | | The extent map code has long noticed when the on-disk extent information is corrupt. However, so far it has only returned an error. We should take the filesystem read-only, as it is corrupt. Signed-off-by: Joel Becker <joel.becker@oracle.com> Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
* ocfs2: Set .owner on masklog sysfs attributes.Joel Becker2006-03-011-0/+1
| | | | | Signed-off-by: Joel Becker <joel.becker@oracle.com> Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
* [PATCH] ocfs2: fix orphan recovery deadlockMark Fasheh2006-03-015-32/+154
| | | | | | | | | Orphan dir recovery can deadlock with another process in ocfs2_delete_inode() in some corner cases. Fix this by tracking recovery state more closely and allowing it to handle inode wipes which might deadlock. Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
* [PATCH] ocfs2: complete failure recovery for nodemanager initJeff Mahoney2006-03-011-1/+3
| | | | | | | | This patch finishes cleaning up the node manager allocations if it fails to initialize. Signed-off-by: Jeff Mahoney <jeffm@suse.com> Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
* [PATCH] ocfs2: remove non existing function prototypesMark Fasheh2006-03-011-5/+0
| | | | | | Remove some prototypes from tcp.h for functions which have long been gone. Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
* [PATCH] ocfs2: remove unused codeMark Fasheh2006-03-012-53/+1
| | | | | | | Remove some #ifdef'd out code which was inadvertantly introduced in our initial merge. Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
* [PATCH] ocfs2: remove pointless max journal size limitMark Fasheh2006-03-011-1/+0
| | | | Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
* [PATCH] ocfs2: fix -Wformat warnings when building UML on x86-64Jeff Mahoney2006-03-011-1/+1
| | | | | | | | | | | | | | The check to determine which format string is appopriate for u64 and friends works in most cases, but UML on x86_64 doesn't define CONFIG_X86_64, so it results in screen fulls of compile-time warnings. This patch fixes it to handle that case. fs/ocfs2/cluster/masklog.h | 2 +- 1 files changed, 1 insertion(+), 1 deletion(-) Signed-off-by: Jeff Mahoney <jeffm@suse.com> Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
* [PATCH] Add mm->task_size and fix powerpc vdsoBenjamin Herrenschmidt2006-02-281-0/+6
| | | | | | | | | | | | | | | This patch adds mm->task_size to keep track of the task size of a given mm and uses that to fix the powerpc vdso so that it uses the mm task size to decide what pages to fault in instead of the current thread flags (which broke when ptracing). (akpm: I expect that mm_struct.task_size will become the way in which we finally sort out the confusion between 32-bit processes and 32-bit mm's. It may need tweaks, but at this stage this patch is powerpc-only.) Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] fuse: fix bug in negative lookupMiklos Szeredi2006-02-281-2/+8
| | | | | | | | | | | | | | | | | | If negative entries (nodeid == 0) were sent in reply to LOOKUP requests, two bugs could be triggered: - looking up a negative entry would return -EIO, - revaildate on an entry which turned negative would send a FORGET request with zero nodeid, which would cause an abort() in the library. The above would only happen if the 'negative_timeout=N' option was used, otherwise lookups reply -ENOENT, which worked correctly. Signed-off-by: Miklos Szeredi <miklos@szeredi.hu> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [XFS] Don't map non-uptodate buffers in xfs_probe_cluster; also fixesEric Sandeen2006-02-281-1/+1
| | | | | | | | | | obscure corruption case SGI-PV: 942658 SGI-Modid: xfs-linux-melb:xfs-kern:207119a Signed-off-by: Eric Sandeen <sandeen@sgi.com> Signed-off-by: Nathan Scott <nathans@sgi.com>
* [XFS] Reduce stack use during quota mounts (caused a panic). ThisNathan Scott2006-02-281-6/+5
| | | | | | | | | regressed recently via the fix for inherited quota inode attributes. SGI-PV: 947312 SGI-Modid: xfs-linux-melb:xfs-kern:25318a Signed-off-by: Nathan Scott <nathans@sgi.com>
* [XFS] Fix a realtime allocator regression introduced by an old iget raceNathan Scott2006-02-281-15/+14
| | | | | | | | | fix. Noticed by Roger Willcocks. SGI-PV: 949821 SGI-Modid: xfs-linux-melb:xfs-kern:25257a Signed-off-by: Nathan Scott <nathans@sgi.com>
* [PATCH] x86_64: Fix ioctl compat code for /dev/rtcAndi Kleen2006-02-261-11/+2
| | | | | | | | RTC_IRQP_SET/RTC_EPOCH_SET don't take a pointer to an argument, but the argument itself. This actually simplifies the code and makes it work. Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] x86_64: Check for bad elf entry address.Suresh Siddha2006-02-261-0/+5
| | | | | | | | | Fixes a local DOS on Intel systems that lead to an endless recursive fault. AMD machines don't seem to be affected. Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* Merge git://git.kernel.org/pub/scm/linux/kernel/git/aia21/ntfs-2.6Linus Torvalds2006-02-2411-137/+256
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| * NTFS: Do more detailed reporting of why we cannot mount read-write byAnton Altaparmakov2006-02-245-29/+47
| | | | | | | | | | | | special casing the VOLUME_MODIFIED_BY_CHKDSK flag. Signed-off-by: Anton Altaparmakov <aia21@cantab.net>
| * NTFS: Implement support for sector sizes above 512 bytes (up to the maximumAnton Altaparmakov2006-02-245-70/+121
| | | | | | | | supported by NTFS which is 4096 bytes).
| * Merge ../ntfs-2.6-develAnton Altaparmakov2006-02-241-1/+1
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| | * Merge branch 'master' of /usr/src/ntfs-2.6/Anton Altaparmakov2006-01-19492-8654/+57741
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| | * \ Merge branch 'master' of /usr/src/ntfs-2.6/Anton Altaparmakov2006-01-0315-93/+122
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| | * \ \ Merge branch 'master' of /usr/src/ntfs-2.6/Anton Altaparmakov2005-12-0536-176/+336
| | |\ \ \
| | * | | | NTFS: Fix a potential overflow by casting (index + 1) to s64 before doing aAnton Altaparmakov2005-11-241-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | left shift using PAGE_CACHE_SHIFT in fs/ntfs/file.c. Thanks to Andrew Morton pointing this out to. Signed-off-by: Anton Altaparmakov <aia21@cantab.net>
| * | | | | NTFS: - Cope with attribute list attribute having invalid flags.Anton Altaparmakov2006-02-243-26/+76
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Windows copes with this and even chkdsk does not detect or fix this so we have to cope with it, too. Thanks to Pawel Kot for reporting the problem. - Miscellaneous updates to layout.h. Signed-off-by: Anton Altaparmakov <aia21@cantab.net>
| * | | | | Merge branch 'master' of /home/src/linux-2.6/Anton Altaparmakov2006-02-24105-995/+1525
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| * | | | | | NTFS: We have struct kmem_cache now so use it instead of the typedef.Pekka Enberg2006-02-052-11/+11
| | |_|_|_|/ | |/| | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi> Signed-off-by: Anton Altaparmakov <aia21@cantab.net>
* | | | | | [PATCH] ramfs: update dir mtime and ctimeAndrew Morton2006-02-241-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Phil Marek <philipp.marek@bmlv.gv.at> points out that ramfs forgets to update a directory's mtime and ctime when it is modified. Cc: <stable@kernel.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | | | | | [PATCH] flags parameter for linkatUlrich Drepper2006-02-241-2/+6
| |/ / / / |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | I'm currently at the POSIX meeting and one thing covered was the incompatibility of Linux's link() with the POSIX definition. The name. Linux does not follow symlinks, POSIX requires it does. Even if somebody thinks this is a good default behavior we cannot change this because it would break the ABI. But the fact remains that some application might want this behavior. We have one chance to help implementing this without breaking the behavior. For this we could use the new linkat interface which would need a new flags parameter. If the new parameter is AT_SYMLINK_FOLLOW the new behavior could be invoked. I do not want to introduce such a patch now. But we could add the parameter now, just don't use it. The patch below would do this. Can we get this late patch applied before the release more or less fixes the syscall API? Signed-off-by: Ulrich Drepper <drepper@redhat.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | | | | [PATCH] CIFS: CIFSSMBRead was returning an invalid pointer in buf on socket ↵Steve French2006-02-222-7/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | error Thanks to Adrian Bunk for debugging the problem and to Shaggy for helping find the solution. Also added a fix for 64K pages we found in loosely-related testing Signed-off-by: Dave Kleikamp <shaggy@austin.ibm.com> Signed-off-by: Steve French <sfrench@us.ibm.com> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | | | | Revert mount/umount uevent removalGreg Kroah-Hartman2006-02-221-1/+14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This change reverts the 033b96fd30db52a710d97b06f87d16fc59fee0f1 commit from Kay Sievers that removed the mount/umount uevents from the kernel. Some older versions of HAL still depend on these events to detect when a new device has been mounted. These events are not correctly emitted, and are broken by design, and so, should not be relied upon by any future program. Instead, the /proc/mounts file should be polled to properly detect this kind of event. A feature-removal-schedule.txt entry has been added, noting when this interface will be removed from the kernel. Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* | | | | Merge branch 'fixes.b8' of ↵Linus Torvalds2006-02-202-12/+9
|\ \ \ \ \ | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/viro/bird
| * | | | | [PATCH] fix handling of st_nlink on procfs rootAl Viro2006-02-182-12/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 1) it should use nr_processes(), not nr_threads; otherwise we are getting very confused find(1) and friends, among other things. 2) better do that at stat() time than at every damn lookup in procfs root. Patch had been sitting in FC4 kernels for many months now... Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* | | | | | [PATCH] v9fs: update documentation and fix debug flagEric Van Hensbergen2006-02-201-1/+1
|/ / / / / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Minor updates to the documentation to bring them into sync with current websites and available features. The debug flag was switched back to hex to match the documentation. Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | | | | [PATCH] select: time comparison fixesAndrew Morton2006-02-172-6/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | I got all of these backwards. We want to return min(input timeout, new timeout) to userspace to prevent increasing the time-remaining value. Thanks to Ernst Herzberg <earny@net4u.de> for reporting and diagnosing. Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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