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2008-06-24[GFS2] fix gfs2 block allocation (cleaned up)Benjamin Marzinski1-14/+9
This patch fixes bz 450641. This patch changes the computation for zero_metapath_length(), which it renames to metapath_branch_start(). When you are extending the metadata tree, The indirect blocks that point to the new data block must either diverge from the existing tree either at the inode, or at the first indirect block. They can diverge at the first indirect block because the inode has room for 483 pointers while the indirect blocks have room for 509 pointers, so when the tree is grown, there is some free space in the first indirect block. What metapath_branch_start() now computes is the height where the first indirect block for the new data block is located. It can either be 1 (if the indirect block diverges from the inode) or 2 (if it diverges from the first indirect block). Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com> Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
2008-06-24[GFS2] BUG: unable to handle kernel paging request at ffff81002690e000Bob Peterson1-1/+1
This patch fixes bugzilla bug bz448866: gfs2: BUG: unable to handle kernel paging request at ffff81002690e000. Signed-off-by: Bob Peterson <rpeterso@redhat.com> Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
2008-06-23NFS: nfs_updatepage(): don't mark page as dirty if an error occurredTrond Myklebust1-3/+4
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2008-06-23NFS: Fix filehandle size comparisons in the mount codeTrond Myklebust2-6/+7
Fix a sign issue in xdr_decode_fhstatus3() Fix incorrect comparison in nfs_validate_mount_data() Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2008-06-23NFS: Reduce the NFS mount code stack usage.Trond Myklebust1-28/+40
This appears to fix the Oops reported in http://bugzilla.kernel.org/show_bug.cgi?id=10826 Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2008-06-22Fix performance regression on lmbench select benchmarkLinus Torvalds1-1/+1
Christian Borntraeger reported that reinstating cond_resched() with CONFIG_PREEMPT caused a performance regression on lmbench: For example select file 500: 23 microseconds 32 microseconds and that's really because we totally unnecessarily do the cond_resched() in the innermost loop of select(), which is just silly. This moves it out from the innermost loop (which only ever loops ove the bits in a single "unsigned long" anyway), which makes the performance regression go away. Reported-and-tested-by: Christian Borntraeger <borntraeger@de.ibm.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-06-21Merge branch 'for_linus' of ↵Linus Torvalds1-1/+2
git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4 * 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4: Ext4: Fix online resize block group descriptor corruption
2008-06-20Ext4: Fix online resize block group descriptor corruptionFrederic Bohe1-1/+2
This is the patch for the group descriptor table corruption during online resize pointed out by Theodore Tso. The problem was caused by the fact that the ext4 group descriptor can be either 32 or 64 bytes long. Only the 64 bytes structure was taken into account. Signed-off-by: Frederic Bohe <frederic.bohe@bull.net> Signed-off-by: Mingming Cao <cmm@us.ibm.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
2008-06-18Merge branch 'for_linus' of ↵Linus Torvalds1-1/+1
git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-udf-2.6 * 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-udf-2.6: udf: restore UDFFS_DEBUG to being undefined by default
2008-06-17fuse: fix thinko in max I/O size calucationMiklos Szeredi1-2/+2
Use max not min to enforce a lower limit on the max I/O size. This bug was introduced by "fuse: fix max i/o size calculation" (commit e5d9a0df07484d6d191756878c974e4307fb24ce). Thanks to Brian Wang for noticing. Reported-by: Brian Wang <ywang221@hotmail.com> Signed-off-by: Miklos Szeredi <mszeredi@suse.cz> Acked-by: Szabolcs Szakacsits <szaka@ntfs-3g.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-06-16Merge branch 'upstream-linus' of ↵Linus Torvalds6-137/+123
git://git.kernel.org/pub/scm/linux/kernel/git/mfasheh/ocfs2 * 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mfasheh/ocfs2: ocfs2: Remove ->hangup() from stack glue operations. ocfs2: Move the call of ocfs2_hb_ctl into the stack glue. ocfs2: Move the hb_ctl_path sysctl into the stack glue.
2008-06-16ocfs2: Remove ->hangup() from stack glue operations.Joel Becker4-23/+6
The ->hangup() call was only used to execute ocfs2_hb_ctl. Now that the generic stack glue code handles this, the underlying stack drivers don't need to know about it. Signed-off-by: Joel Becker <joel.becker@oracle.com> Signed-off-by: Mark Fasheh <mfasheh@suse.com>
2008-06-16ocfs2: Move the call of ocfs2_hb_ctl into the stack glue.Joel Becker3-48/+40
Take o2hb_stop() out of the o2cb code and make it part of the generic stack glue as ocfs2_leave_group(). This also allows us to remove the ocfs2_get_hb_ctl_path() function - everything to do with hb_ctl is now part of stackglue.c. o2cb no longer needs a ->hangup() function. Signed-off-by: Joel Becker <joel.becker@oracle.com> Signed-off-by: Mark Fasheh <mfasheh@suse.com>
2008-06-16ocfs2: Move the hb_ctl_path sysctl into the stack glue.Joel Becker5-78/+89
ocfs2 needs to call out to the hb_ctl program at unmount for all cluster stacks. The first step is to move the hb_ctl_path sysctl out of the o2cb code and into the generic stack glue. Signed-off-by: Joel Becker <joel.becker@oracle.com> Signed-off-by: Mark Fasheh <mfasheh@suse.com>
2008-06-16Remove last traces of a.out support from ELF loader.David Woodhouse1-3/+0
In commit d20894a23708c2af75966534f8e4dedb46d48db2 ("Remove a.out interpreter support in ELF loader"), Andi removed support for a.out interpreters from the ELF loader, which was only ever needed for the transition from a.out to ELF. This removes the last traces of that support, in particular the inclusion of <linux/a.out.h>. Signed-off-by: David Woodhouse <dwmw2@infradead.org> Acked-by: Peter Korsgaard <jacmet@sunsite.dk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-06-16Include <asm/a.out.h> in fs/exec.c only for Alpha.David Woodhouse1-2/+6
We only need it for the /sbin/loader hack for OSF/1 executables, and we don't want to include it otherwise. While we're at it, remove the redundant '&& CONFIG_ARCH_SUPPORTS_AOUT' in the ifdef around that code. It's already dependent on __alpha__, and CONFIG_ARCH_SUPPORTS_AOUT is hard-coded to 'y' there. Signed-off-by: David Woodhouse <dwmw2@infradead.org> Acked-by: Peter Korsgaard <jacmet@sunsite.dk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-06-16udf: restore UDFFS_DEBUG to being undefined by defaultPaul Collins1-1/+1
Commit 706047a79725b585cf272fdefc234b31b6545c72, "udf: Fix compilation warnings when UDF debug is on" inadvertently (I assume) enabled debugging messages by default for UDF. This patch disables them again. Signed-off-by: Paul Collins <paul@ondioline.org> Signed-off-by: Jan Kara <jack@suse.cz>
2008-06-12pagemap: fix large pages in pagemapDave Hansen1-9/+30
We were walking right into huge page areas in the pagemap walker, and calling the pmds pmd_bad() and clearing them. That leaked huge pages. Bad. This patch at least works around that for now. It ignores huge pages in the pagemap walker for the time being, and won't leak those pages. Signed-off-by: Dave Hansen <dave@linux.vnet.ibm.com> Acked-by: Matt Mackall <mpm@selenic.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-06-12pagemap: pass mm into pagewalkersDave Hansen1-19/+25
We need this at least for huge page detection for now, because powerpc needs the vm_area_struct to be able to determine whether a virtual address is referring to a huge page (its pmd_huge() doesn't work). It might also come in handy for some of the other users. Signed-off-by: Dave Hansen <dave@linux.vnet.ibm.com> Acked-by: Matt Mackall <mpm@selenic.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-06-12fat: relax the permission check of fat_setattr()OGAWA Hirofumi1-17/+27
New chmod() allows only acceptable permission, and if not acceptable, it returns -EPERM. Old one allows even if it can't store permission to on disk inode. But it seems too strict for users. E.g. https://bugzilla.redhat.com/show_bug.cgi?id=449080: With new one, rsync couldn't create the temporary file. So, this patch allows like old one, but now it doesn't change the permission if it can't store, and it returns 0. Also, this patch fixes missing check. Signed-off-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-06-11Merge git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6Linus Torvalds11-130/+172
* git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6: [CIFS] cifs: fix oops on mount when CONFIG_CIFS_DFS_UPCALL is enabled [CIFS] Fix hang in mount when negprot causes server to kill tcp session disable most mode changes on non-unix/non-cifsacl mounts [CIFS] Correct incorrect obscure open flag [CIFS] warn if both dynperm and cifsacl mount options specified silently ignore ownership changes unless unix extensions are enabled or we're faking uid changes [CIFS] remove trailing whitespace when creating new inodes, use file_mode/dir_mode exclusively on mount without unix extensions on non-posix shares, clear write bits in mode when ATTR_READONLY is set [CIFS] remove unused variables
2008-06-10[CIFS] cifs: fix oops on mount when CONFIG_CIFS_DFS_UPCALL is enabledSteve French1-11/+10
simple "mount -t cifs //xxx /mnt" oopsed on strlen of options http://kerneloops.org/guilty.php?guilty=cifs_get_sb&version=2.6.25-release&start=16711 \ 68&end=1703935&class=oops Signed-off-by: Marcin Slusarz <marcin.slusarz@gmail.com> Acked-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Steve French <sfrench@us.ibm.com>
2008-06-10[CIFS] Fix hang in mount when negprot causes server to kill tcp sessionSteve French2-0/+6
Acked-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Steve French <sfrench@us.ibm.com>
2008-06-06Merge branch 'for_linus' of ↵Linus Torvalds6-23/+108
git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4 * 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4: ext4: enable barriers by default jbd2: Fix barrier fallback code to re-lock the buffer head ext4: Display the journal_async_commit mount option in /proc/mounts jbd2: If a journal checksum error is detected, propagate the error to ext4 jbd2: Fix memory leak when verifying checksums in the journal ext4: fix online resize bug ext4: Fix uninit block group initialization with FLEX_BG ext4: Fix use of uninitialized data with debug enabled.
2008-06-06uml: activate_mm: remove the dead PF_BORROWED_MM checkOleg Nesterov1-4/+0
use_mm() was changed to use switch_mm() instead of activate_mm(), since then nobody calls (and nobody should call) activate_mm() with PF_BORROWED_MM bit set. As Jeff Dike pointed out, we can also remove the "old != new" check, it is always true. Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru> Cc: Jeff Dike <jdike@addtoit.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-06-06Merge branch 'for-linus' of ↵Linus Torvalds1-1/+1
git://git.kernel.org/pub/scm/linux/kernel/git/chrisw/lsm-2.6 * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/chrisw/lsm-2.6: capabilities: remain source compatible with 32-bit raw legacy capability support. LSM: remove stale web site from MAINTAINERS
2008-06-06pagemap: return EINVAL, not EIO, for unaligned reads of kpagecount or kpageflagsThomas Tuttle1-2/+2
If the user tries to read from a position that is not a multiple of 8, or read a number of bytes that is not a multiple of 8, they have passed an invalid argument to read, for the purpose of reading these files. It's not an IO error because we didn't encounter any trouble finding the data they asked for. Signed-off-by: Thomas Tuttle <ttuttle@google.com> Cc: Matt Mackall <mpm@selenic.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-06-06pagemap: return map count, not reference count, in /proc/kpagecountThomas Tuttle1-1/+1
Since pagemap is all about examining pages mapped into processes' memory spaces, it makes sense for kpagecount to return the map counts, not the reference counts. Signed-off-by: Thomas Tuttle <ttuttle@google.com> Cc: Matt Mackall <mpm@selenic.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-06-06proc: calculate the correct /proc/<pid> link countVegard Nossum1-8/+25
This patch: commit e9720acd728a46cb40daa52c99a979f7c4ff195c Author: Pavel Emelyanov <xemul@openvz.org> Date: Fri Mar 7 11:08:40 2008 -0800 [NET]: Make /proc/net a symlink on /proc/self/net (v3) introduced a /proc/self/net directory without bumping the corresponding link count for /proc/self. This patch replaces the static link count initializations with a call that counts the number of directory entries in the given pid_entry table whenever it is instantiated, and thus relieves the burden of manually keeping the two in sync. [akpm@linux-foundation.org: cleanup] Acked-by: Eric W. Biederman <ebiederm@xmission.com> Cc: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: Vegard Nossum <vegard.nossum@gmail.com> Cc: "David S. Miller" <davem@davemloft.net> Cc: Alexey Dobriyan <adobriyan@gmail.com> Cc: <stable@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-06-06ext3: fix online resize bugJosef Bacik1-1/+2
There is a bug when we are trying to verify that the reserve inode's double indirect blocks point back to the primary gdt blocks. The fix is obvious, we need to mod the gdb count by the addr's per block. You can verify this with the following test case dd if=/dev/zero of=disk1 seek=1024 count=1 bs=100M losetup /dev/loop1 disk1 pvcreate /dev/loop1 vgcreate loopvg1 /dev/loop1 lvcreate -l 100%VG loopvg1 -n looplv1 mkfs.ext3 -J size=64 -b 1024 /dev/loopvg1/looplv1 mount /dev/loopvg1/looplv1 /mnt/loop dd if=/dev/zero of=disk2 seek=1024 count=1 bs=50M losetup /dev/loop2 disk2 pvcreate /dev/loop2 vgextend loopvg1 /dev/loop2 lvextend -l 100%VG /dev/loopvg1/looplv1 resize2fs /dev/loopvg1/looplv1 without this patch the resize2fs fails, with it the resize2fs succeeds. Signed-off-by: Josef Bacik <jbacik@redhat.com> Acked-by: Andreas Dilger <adilger@sun.com> Cc: <linux-ext4@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-06-06nommu: fix ksize() abusePekka Enberg2-5/+5
The nommu binfmt code uses ksize() for pointers returned from do_mmap() which is wrong. This converts the call-sites to use the nommu specific kobjsize() function which works as expected. Cc: Christoph Lameter <clameter@sgi.com> Cc: Matt Mackall <mpm@selenic.com> Acked-by: Paul Mundt <lethal@linux-sh.org> Acked-by: David Howells <dhowells@redhat.com> Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi> Acked-by: Greg Ungerer <gerg@snapgear.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-06-06pagemap: fix bug in add_to_pagemap, require aligned-length reads of ↵Thomas Tuttle1-19/+9
/proc/pid/pagemap Fix a bug in add_to_pagemap. Previously, since pm->out was a char *, put_user was only copying 1 byte of every PFN, resulting in the top 7 bytes of each PFN not being copied. By requiring that reads be a multiple of 8 bytes, I can make pm->out and pm->end u64*s instead of char*s, which makes put_user work properly, and also simplifies the logic in add_to_pagemap a bit. [akpm@linux-foundation.org: coding-style fixes] Signed-off-by: Thomas Tuttle <ttuttle@google.com> Cc: Matt Mackall <mpm@selenic.com> Cc: <stable@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-06-06devscgroup: check for device permissions at mount timePavel Emelyanov1-1/+7
Currently even if a task sits in an all-denied cgroup it can still mount any block device in any mode it wants. Put a proper check in do_open for block device to prevent this. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Acked-by: Serge Hallyn <serue@us.ibm.com> Tested-by: Serge Hallyn <serue@us.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-06-06introduce memory_read_from_buffer()Akinobu Mita1-0/+18
This patch introduces memory_read_from_buffer(). The only difference between memory_read_from_buffer() and simple_read_from_buffer() is which address space the function copies to. simple_read_from_buffer copies to user space memory. memory_read_from_buffer copies to normal memory. Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Doug Warzecha <Douglas_Warzecha@dell.com> Cc: Zhang Rui <rui.zhang@intel.com> Cc: Matt Domsch <Matt_Domsch@dell.com> Cc: Abhay Salunke <Abhay_Salunke@dell.com> Cc: Greg Kroah-Hartman <gregkh@suse.de> Cc: Markus Rechberger <markus.rechberger@amd.com> Cc: Kay Sievers <kay.sievers@vrfy.org> Cc: Bob Moore <robert.moore@intel.com> Cc: Thomas Renninger <trenn@suse.de> Cc: Len Brown <lenb@kernel.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: "Antonino A. Daplas" <adaplas@pol.net> Cc: Krzysztof Helt <krzysztof.h1@poczta.fm> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Peter Oberparleiter <peter.oberparleiter@de.ibm.com> Cc: Michael Holzheu <holzheu@de.ibm.com> Cc: Brian King <brking@us.ibm.com> Cc: James E.J. Bottomley <James.Bottomley@HansenPartnership.com> Cc: Andrew Vasquez <linux-driver@qlogic.com> Cc: Seokmann Ju <seokmann.ju@qlogic.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-06-06Fix various old email addresses for dwmw2David Woodhouse3-3/+3
Although if people have questions about ARCnet, perhaps it's _better_ for them to be mailing dwmw2@cam.ac.uk about it... Signed-off-by: David Woodhouse <dwmw2@infradead.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-06-06eCryptfs: remove unnecessary page decrypt callMichael Halcrow2-24/+0
The page decrypt calls in ecryptfs_write() are both pointless and buggy. Pointless because ecryptfs_get_locked_page() has already brought the page up to date, and buggy because prior mmap writes will just be blown away by the decrypt call. This patch also removes the declaration of a now-nonexistent function ecryptfs_write_zeros(). Thanks to Eric Sandeen and David Kleikamp for helping to track this down. Eric said: fsx w/ mmap dies quickly ( < 100 ops) without this, and survives nicely (to millions of ops+) with it in place. Signed-off-by: Michael Halcrow <mhalcrow@us.ibm.com> Cc: Eric Sandeen <sandeen@redhat.com> Cc: Dave Kleikamp <shaggy@austin.ibm.com> Cc: <stable@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-06-06frv: don't offer BINFMT_FLATAdrian Bunk1-1/+1
Fix the following compile error: CC fs/binfmt_flat.o In file included from /home/bunk/linux/kernel-2.6/git/linux-2.6/fs/binfmt_flat.c:36: /home/bunk/linux/kernel-2.6/git/linux-2.6/include/linux/flat.h:14:22: error: asm/flat.h: No such file or directory /home/bunk/linux/kernel-2.6/git/linux-2.6/fs/binfmt_flat.c: In function 'create_flat_tables': /home/bunk/linux/kernel-2.6/git/linux-2.6/fs/binfmt_flat.c:124: error: implicit declaration of function 'flat_stack_align' /home/bunk/linux/kernel-2.6/git/linux-2.6/fs/binfmt_flat.c:125: error: implicit declaration of function 'flat_argvp_envp_on_stack' /home/bunk/linux/kernel-2.6/git/linux-2.6/fs/binfmt_flat.c: In function 'calc_reloc': /home/bunk/linux/kernel-2.6/git/linux-2.6/fs/binfmt_flat.c:347: error: implicit declaration of function 'flat_reloc_valid' /home/bunk/linux/kernel-2.6/git/linux-2.6/fs/binfmt_flat.c: In function 'load_flat_file': /home/bunk/linux/kernel-2.6/git/linux-2.6/fs/binfmt_flat.c:479: error: implicit declaration of function 'flat_old_ram_flag' /home/bunk/linux/kernel-2.6/git/linux-2.6/fs/binfmt_flat.c:755: error: implicit declaration of function 'flat_set_persistent' /home/bunk/linux/kernel-2.6/git/linux-2.6/fs/binfmt_flat.c:757: error: implicit declaration of function 'flat_get_relocate_addr' /home/bunk/linux/kernel-2.6/git/linux-2.6/fs/binfmt_flat.c:765: error: implicit declaration of function 'flat_get_addr_from_rp' /home/bunk/linux/kernel-2.6/git/linux-2.6/fs/binfmt_flat.c:781: error: implicit declaration of function 'flat_put_addr_at_rp' Reported-by: Adrian Bunk <bunk@kernel.org> Signed-off-by: Adrian Bunk <bunk@kernel.org> Tested-by: David Howells <dhowells@redhat.com> Acked-by: David Howells <dhowells@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-06-05asn1: additional sanity checking during BER decodingChris Wright1-0/+14
- Don't trust a length which is greater than the working buffer. An invalid length could cause overflow when calculating buffer size for decoding oid. - An oid length of zero is invalid and allows for an off-by-one error when decoding oid because the first subid actually encodes first 2 subids. - A primitive encoding may not have an indefinite length. Thanks to Wei Wang from McAfee for report. Cc: Steven French <sfrench@us.ibm.com> Cc: stable@kernel.org Acked-by: Patrick McHardy <kaber@trash.net> Signed-off-by: Chris Wright <chrisw@sous-sol.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-06-04cifs endianness fixesAl Viro1-3/+3
__le16 fields used as host-endian. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Acked-by: Steve French <smfrench@gmail.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-05-31capabilities: remain source compatible with 32-bit raw legacy capability ↵Andrew G. Morgan1-1/+1
support. Source code out there hard-codes a notion of what the _LINUX_CAPABILITY_VERSION #define means in terms of the semantics of the raw capability system calls capget() and capset(). Its unfortunate, but true. Since the confusing header file has been in a released kernel, there is software that is erroneously using 64-bit capabilities with the semantics of 32-bit compatibilities. These recently compiled programs may suffer corruption of their memory when sys_getcap() overwrites more memory than they are coded to expect, and the raising of added capabilities when using sys_capset(). As such, this patch does a number of things to clean up the situation for all. It 1. forces the _LINUX_CAPABILITY_VERSION define to always retain its legacy value. 2. adopts a new #define strategy for the kernel's internal implementation of the preferred magic. 3. deprecates v2 capability magic in favor of a new (v3) magic number. The functionality of v3 is entirely equivalent to v2, the only difference being that the v2 magic causes the kernel to log a "deprecated" warning so the admin can find applications that may be using v2 inappropriately. [User space code continues to be encouraged to use the libcap API which protects the application from details like this. libcap-2.10 is the first to support v3 capabilities.] Fixes issue reported in https://bugzilla.redhat.com/show_bug.cgi?id=447518. Thanks to Bojan Smojver for the report. [akpm@linux-foundation.org: s/depreciate/deprecate/g] [akpm@linux-foundation.org: be robust about put_user size] [akpm@linux-foundation.org: coding-style fixes] Signed-off-by: Andrew G. Morgan <morgan@kernel.org> Cc: Serge E. Hallyn <serue@us.ibm.com> Cc: Bojan Smojver <bojan@rexursive.com> Cc: stable@kernel.org Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Chris Wright <chrisw@sous-sol.org>
2008-05-30[PATCH 3/3] ocfs2/net: Silence build warningsSunil Mushran2-19/+41
This patch silences the build warnings concerning o2net_init_nst() and friends when building without CONFIG_DEBUG_FS enabled. Signed-off-by: Sunil Mushran <sunil.mushran@oracle.com> Signed-off-by: Mark Fasheh <mfasheh@suse.com>
2008-05-30[PATCH 2/3] ocfs2/dlm: Silence build warningsSunil Mushran1-6/+6
This patch silences the build warnings concerning dlm_debug_init() and friends when building without CONFIG_DEBUG_FS enabled. Signed-off-by: Sunil Mushran <sunil.mushran@oracle.com> Signed-off-by: Mark Fasheh <mfasheh@suse.com>
2008-05-30[PATCH 1/3] ocfs2/net: Silence build warningsSunil Mushran1-6/+6
This patch silences the build warnings concerning o2net_debugfs_init() and friends when building without CONFIG_DEBUG_FS enabled. Signed-off-by: Sunil Mushran <sunil.mushran@oracle.com> Signed-off-by: Mark Fasheh <mfasheh@suse.com>
2008-05-30ocfs2: Rename 'user_stack' plugin structure to 'ocfs2_user_plugin'Joel Becker1-17/+17
The static structure describing the userspace cluster plugin for ocfs2 was named 'user_stack', which is a real pain when people are grep(1)ing the tree for the program stack object 'user_stack'. Change the name to something distinct and namespaced. Signed-off-by: Joel Becker <joel.becker@oracle.com> Signed-off-by: Mark Fasheh <mfasheh@suse.com>
2008-05-28splice: handle try_to_release_page() failureJens Axboe1-2/+3
splice currently assumes that try_to_release_page() always suceeds, but it can return failure. If it does, we cannot steal the page. Acked-by: Mingming Cao <cmm@us.ibm.com Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2008-05-28splice: fix sendfile() issue with relayTom Zanussi1-4/+8
Splice isn't always incrementing the ppos correctly, which broke relay splice. Signed-off-by: Tom Zanussi <zanussi@comcast.net> Tested-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2008-05-26posix timers: discard SI_TIMER signals on execOleg Nesterov1-0/+1
Based on Roland's patch. This approach was suggested by Austin Clements from the very beginning, and then by Linus. As Austin pointed out, the execing task can be killed by SI_TIMER signal because exec flushes the signal handlers, but doesn't discard the pending signals generated by posix timers. Perhaps not a bug, but people find this surprising. See http://bugzilla.kernel.org/show_bug.cgi?id=10460 Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru> Cc: Austin Clements <amdragon+kernelbugzilla@mit.edu> Cc: Roland McGrath <roland@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-05-26ext4: enable barriers by defaultEric Sandeen1-2/+9
I can't think of any valid reason for ext4 to not use barriers when they are available; I believe this is necessary for filesystem integrity in the face of a volatile write cache on storage. An administrator who trusts that the cache is sufficiently battery- backed (and power supplies are sufficiently redundant, etc...) can always turn it back off again. SuSE has carried such a patch for ext3 for quite some time now. Also document the mount option while we're at it. Signed-off-by: Eric Sandeen <sandeen@redhat.com> Signed-off-by: Mingming Cao <cmm@us.ibm.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
2008-06-03jbd2: Fix barrier fallback code to re-lock the buffer headTheodore Ts'o1-0/+1
If the device doesn't support write barriers, the write is retried without ordered mode. But the buffer head needs to be re-locked or submit_bh will fail with on BUG(!buffer_locked(bh)). Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
2008-05-26ext4: Display the journal_async_commit mount option in /proc/mountsTheodore Ts'o1-0/+2
Cc: Andreas Dilger <adilger@clusterfs.com> Cc: Girish Shilamkar <girish@clusterfs.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
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