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2007-03-16[PATCH] fix process crash caused by randomisation and 64k pagesJames Bottomley1-1/+1
This bug was seen on ppc64, but it could have occurred on any architecture with a page size of 64k or above. The problem is that in fs/binfmt_elf.c:randomize_stack_top() randomizes the stack to within 0x7ff pages. On 4k page machines, this is 8MB; on 64k page boxes, this is 128MB. The problem is that the new binary layout (selected in arch_pick_mmap_layout) places the mapping segment 128MB or the stack rlimit away from the top of the process memory, whichever is larger. If you chose an rlimit of less than 128MB (most defaults are in the 8Mb range) then you can end up having your entire stack randomized away. The fix is to make randomize_stack_top() only steal at most 8MB, which this patch does. However, I have to point out that even with this, your stack rlimit might not be exactly what you get if it's > 128MB, because you're still losing the random offset of up to 8MB. The true fix should be to leave an explicit gap for the randomization plus a buffer when determining mmap_base, but that would involve fixing all the architectures. Cc: Arjan van de Ven <arjan@infradead.org> Cc: Ingo Molnar <mingo@elte.hu> Cc: Andi Kleen <ak@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-03-16[PATCH] change misleading EFI partition support descriptionJohannes Berg1-2/+1
Remove the misleading "Presently only useful on the IA-64 platform" text from the EFI partition Kconfig. EFI partitions are also used by Apple on their Intel-based machines and thus you need EFI partition support if you (for example) want to attach such a machine in target disk mode. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Acked-by: Matt Domsch <Matt_Domsch@dell.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-03-16[PATCH] nfs: nfs_getattr() can't call nfs_sync_mapping_range() for ↵Trond Myklebust1-1/+2
non-regular files Looks like we need a check in nfs_getattr() for a regular file. It makes no sense to call nfs_sync_mapping_range() on anything else. I think that should fix your problem: it will stop the NFS client from interfering with dirty pages on that inode's mapping. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com> Acked-by: Olof Johansson <olof@lixom.net> Cc: <stable@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-03-16[PATCH] nfs: fix congestion controlPeter Zijlstra3-44/+84
The current NFS client congestion logic is severly broken, it marks the backing device congested during each nfs_writepages() call but doesn't mirror this in nfs_writepage() which makes for deadlocks. Also it implements its own waitqueue. Replace this by a more regular congestion implementation that puts a cap on the number of active writeback pages and uses the bdi congestion waitqueue. Also always use an interruptible wait since it makes sense to be able to SIGKILL the process even for mounts without 'intr'. Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Acked-by: Trond Myklebust <trond.myklebust@fys.uio.no> Cc: Christoph Lameter <clameter@engr.sgi.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-03-16[PATCH] fix rescan_partitions to return errors properlysuzuki1-1/+1
The only error code which comes from the partition checkers is -1, when they finds an EIO. As per the discussion, ENOMEM values were ignored, as they might scare the users. So, with the current code, we end up returning -1 and not EIO for the ioctl() calls. Which doesn't give any clue to the user of what went wrong. Signed-off-by: Suzuki K P <suzuki@in.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-03-16[PATCH] smbfs: double free memory corruptionVasily Averin1-0/+1
smbfs allocates rq_trans2buffer to handle server's multi transaction2 response messages. As struct smb_request may be reused, rq_trans2buffer is freed before each new request. However if last servers's response is not multi but single trans2 message then new rq_trans2buffer is not allocated but last smb_rput still tries to free it again. To prevent this issue rq_trans2buffer pointer should be set to NULL after kfree. Signed-off-by: Vasily Averin <vvs@sw.ru> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-03-16[PATCH] eCryptfs: fix possible NULL ptr deref in ecryptfs_d_release()Michael Halcrow1-10/+5
ecryptfs_d_release() first dereferences a pointer (via ecryptfs_dentry_to_lower()) and then afterwards checks to see if the pointer it just dereferenced is NULL (via ecryptfs_dentry_to_private()). This patch moves all of the work done on the dereferenced pointer inside a block governed by the condition that the pointer is non-NULL. Signed-off-by: Michael Halcrow <mhalcrow@us.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-03-16[PATCH] ufs2: tindirect truncate fixEvgeniy Dushistov1-1/+1
During modification of code to support UFS2 writing, the case with "three indirect" blocks in truncate path was missed, this patch fixes this situation. Signed-off-by: Evgeniy Dushistov <dushistov@mail.ru> Acked-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-03-16[PATCH] ufs: zeroize the rest of block in truncateEvgeniy Dushistov3-18/+35
This patch fix behaviour in such test scenario: lseek(fd, BIG_OFFSET) write(fd, buf, sizeof(buf)) truncate(BIG_OFFSET) truncate(BIG_OFFSET + sizeof(buf)) read(fd, buf...) Because of if file big enough(BIG_OFFSET) we start allocate space by block, ordinary block size > page size, so we should zeroize the rest of block in truncate(except last framgnet, about which VFS should care), to not get garbage, when we extend file. Also patch corrects conversion from pointer to block to physical block number, this helps in case of not common used UFS types. And add to debug output inode number. Signed-off-by: Evgeniy Dushistov <dushistov@mail.ru> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-03-16[PATCH] ufs: prepare write + change blocks on the flyEvgeniy Dushistov1-28/+53
This fixes "change blocks numbers on the fly" in case when "prepare write page" is in the call chain, in this case some buffers may be not uptodate and not mapped, we should care to map them and load from disk. This patch was tested with: - ufs regressions simple tests - fsx-linux - ltp(20060306) - untar and build kernel Signed-off-by: Evgeniy Dushistov <dushistov@mail.ru> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-03-16[PATCH] ufs2: more correct work with timeEvgeniy Dushistov2-15/+14
This patch corrects work with time in UFS2 case. 1) According to UFS2 disk layout modification/access and so on "time" should be hold in two variables one 64bit for seconds and another 32bit for nanoseconds, at now for some unknown reason we suppose that "inode time" holds in three variables 32bit for seconds, 32bit for milliseconds and 32bit for nanoseconds. 2) We set amount of nanoseconds in "VFS inode" to 0 during read, instead of getting values from "on disk inode"(this should close http://bugzilla.kernel.org/show_bug.cgi?id=7991). Signed-off-by: Evgeniy Dushistov <dushistov@mail.ru> Cc: Bjoern Jacke <bjoern@j3e.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-03-15[PATCH] sysfs: reinstate exclusion between method calls and attribute ↵Alan Stern2-8/+12
unregistration This patch (as869) reinstates the mutual exclusion between sysfs attribute method calls and attribute unregistration. The previously-reported deadlocks have been fixed, and this exclusion is by far the simplest way to avoid races during driver unbinding. The check for orphaned read-buffers has been moved down slightly, so that the remainder of a partially-read buffer will still be available to userspace even after the attribute has been unregistered. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Cc: Hugh Dickins <hugh@veritas.com> Cc: Cornelia Huck <cornelia.huck@de.ibm.com> Cc: Oliver Neukum <oneukum@suse.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-03-15[PATCH] sysfs and driver core: add callback helper, used by SCSI and S390Alan Stern1-0/+54
This patch (as868) adds a helper routine for device drivers that need to set up a callback to perform some action in a different process's context. This is intended for use by attribute methods that want to unregister themselves or their parent device. Attribute method calls are mutually exclusive with unregistration, so such actions cannot be taken directly. Two attribute methods are converted to use the new helper routine: one for SCSI device deletion and one for System/390 ccwgroup devices. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Cc: Hugh Dickins <hugh@veritas.com> Cc: Cornelia Huck <cornelia.huck@de.ibm.com> Cc: Oliver Neukum <oneukum@suse.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-03-14Merge branch 'upstream-linus' of ↵Linus Torvalds8-54/+84
master.kernel.org:/pub/scm/linux/kernel/git/mfasheh/ocfs2 * 'upstream-linus' of master.kernel.org:/pub/scm/linux/kernel/git/mfasheh/ocfs2: ocfs2_dlm: Add missing locks in dlm_empty_lockres ocfs2_dlm: Missing get/put lockres in dlm_run_purge_lockres configfs: add missing mutex_unlock() ocfs2: add some missing address space callbacks ocfs2: Concurrent access of o2hb_region->hr_task was not locked ocfs2: Proper cleanup in case of error in ocfs2_register_hb_callbacks()
2007-03-14[PATCH] cifs endianness annotationsAl Viro1-1/+1
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-03-14[PATCH] include of asm/pgtable.h in nfsfh is bogusAl Viro1-1/+0
not needed and actually breaks build on frv, while we are at it Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-03-14[PATCH] sanitize security_getprocattr() APIAl Viro1-15/+6
have it return the buffer it had allocated Acked-by: Stephen Smalley <sds@tycho.nsa.gov> Acked-by: James Morris <jmorris@namei.org> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-03-14ocfs2_dlm: Add missing locks in dlm_empty_lockresSunil Mushran1-0/+3
__dlm_lockres_unused() expects the caller to take the lockres spinlock. Signed-off-by: Sunil Mushran <sunil.mushran@oracle.com> Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2007-03-14ocfs2_dlm: Missing get/put lockres in dlm_run_purge_lockresSunil Mushran1-0/+2
In some circumstances, this was causing us to reference freed memory. Signed-off-by: Sunil Mushran <sunil.mushran@oracle.com> Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2007-03-14configfs: add missing mutex_unlock()Joel Becker1-15/+12
d_alloc() failure in configfs_register_subsystem() would fail to unlock the mutex taken above. Reorganize the exit path to ensure the unlock happens. Reported-by: Akinobu Mita <akinobu.mita@gmail.com> Signed-off-by: Joel Becker <joel.becker@oracle.com> Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2007-03-14ocfs2: add some missing address space callbacksJoel Becker1-1/+25
Under load, OCFS2 would crash in invalidate_inode_pages2_range() because invalidate_complete_page2() was unable to invalidate a page. It would appear that JBD is holding on to the page. ext3 has a specific ->releasepage() handler to cover this case. Steal ext3's ->releasepage(), ->invalidatepage(), and ->migratepage(), as they appear completely appropriate for OCFS2. Signed-off-by: Joel Becker <joel.becker@oracle.com> Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2007-03-14ocfs2: Concurrent access of o2hb_region->hr_task was not lockedJoel Becker1-12/+32
This means that a build-up and a teardown could race which would result in a double-kthread_stop(). Protect the setting and clearing of hr_task with o2hb_live_lock, as it's not a common thing and not performance critical. Signed-off-by: Joel Becker <joel.becker@oracle.com> Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2007-03-14ocfs2: Proper cleanup in case of error in ocfs2_register_hb_callbacks()Joel Becker4-26/+10
If ocfs2_register_hb_callbacks() succeeds on its first callback but fails its second, it doesn't release the first on the way out. Fix that. While we're at it, o2hb_unregister_callback() never returns anything but 0, so let's make it void. Signed-off-by: Joel Becker <joel.becker@oracle.com> Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2007-03-09Merge git://git.infradead.org/mtd-2.6Linus Torvalds4-4/+36
* git://git.infradead.org/mtd-2.6: [JFFS2] print a message when marking bad block [JFFS2] Check for all-zero node headers [MTD] [OneNAND] Classify the page data and oob buffer [MTD] [OneNAND] Exit the loop when transferring/filling of the oob is finished [MTD] [OneNAND] add Nokia Copyright and a credit [MTD] [OneNAND] Fix typo & wrong comments [MTD] [OneNAND] Use oob buffer instead of main one in oob functions [MTD] Correct partition failed erase address [JFFS2] Use yield() between GC passes in background thread. [MTD] [NAND] Correct misspelled preprocessor variable. [MTD] [MAPS] dilnetpc: Fix printk warning [MTD] [NOR] Fix oops in cfi_amdstd_sync [MTD] ESB2 check for closed ROM window [JFFS2] Fix writebuffer recovery in the first page of a block [MTD] [NAND] make oobavail public
2007-03-09[JFFS2] print a message when marking bad blockArtem Bityutskiy1-1/+1
New bad eraseblock is an event which is important enough to be printed about. Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-03-09[JFFS2] Check for all-zero node headersDavid Woodhouse2-1/+24
Due to a poor choice of CRC32 seed, a node header which is all zeroes would pass the CRC32 check. Explicitly check for this case, and treat it as we do a CRC failure. Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-03-08[PATCH] ecryptfs: nested locking annotationPeter Zijlstra1-1/+1
ecryptfs uses a lock_parent() function, which I hope really locks the parents and is not abused Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Michael Halcrow <mhalcrow@us.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-03-08[PATCH] check_partition(): fix error checksuzuki1-1/+1
Fix inverted check introduced in 57881dd9df40b76dc7fc6a0d13fd75f337accb32 "Fix check_partition routines". Signed-off-by: Suzuki K P <suzuki@in.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-03-08[PATCH] Add epoll compat_ code to fs/compat.cDavide Libenzi1-0/+100
IA64 and ARM-OABI are currently using their own version of epoll compat_ code. An architecture needs epoll_event translation if alignof(u64) in 32 bit mode is different from alignof(u64) in 64 bit mode. If an architecture needs epoll_event translation, it must define struct compat_epoll_event in asm/compat.h and set CONFIG_HAVE_COMPAT_EPOLL_EVENT and use compat_sys_epoll_ctl and compat_sys_epoll_wait. All 64 bit architecture should use compat_sys_epoll_pwait. [sfr: restructure and move to fs/compat.c, remove MIPS version of compat_sys_epoll_pwait, use __put_user_unaligned] Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Cc: David Woodhouse <dwmw2@infradead.org> Cc: Russell King <rmk@arm.linux.org.uk> Cc: "Luck, Tony" <tony.luck@intel.com> Cc: "David S. Miller" <davem@davemloft.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-03-08[PATCH] uml: hostfs: make hostfs= option work as a jail, as intended.Paolo 'Blaisorblade' Giarrusso1-5/+7
When a given host directory is specified to be mounted both in hostfs=path1 and with mount option -o path2, we should give access to path1/path2, but this does not happen. Fix that in the simpler way. Also, root_ino can be the empty string, since we use %s/%s as format. Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it> Acked-by: Jeff Dike <jdike@addtoit.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-03-08[PATCH] uml: hostfs: fix double freePaolo 'Blaisorblade' Giarrusso1-1/+4
Fix double free in the error path - when name is assigned into root_inode we do not own it any more and we must not kfree() it - see patch for details. Thanks to William Stearns for the initial report. CC: William Stearns <wstearns@pobox.com> Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it> Acked-by: Jeff Dike <jdike@addtoit.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-03-08[JFFS2] Use yield() between GC passes in background thread.David Woodhouse1-1/+7
The garbage collection thread is strictly an optimisation. Everything it does would also be done just-in-time in the context of something in userspace trying to access the file system. Sometimes, however, it's a pessimisation. Especially during early boot when it's checksumming nodes and scanning inodes which are shortly going to be pulled in by read_inode anyway. We end up building the rbtree of node coverage twice for the same inode. By switching to yield() instead of cond_resched() in the main loop, we observe boot times on the OLPC system going down from about 100 seconds to 60. Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-03-08[JFFS2] Fix writebuffer recovery in the first page of a blockVitaly Wool1-1/+4
For the case when nand_write_page fail with -EIO for the first page in an eraseblock, jffs2_wbuf_recover ends up producing a BUG in jffs2_block_refile as jeb->first_node is not yet set up (it's set up later in jffs2_wbuf_recover). This BUG is not really a bug; it's just jffs2_wbuf_recover calling jffs2_block_refile with the wrong second parameter. This patch takes care of this situation. Signed-off-by: Vitaly Wool <vwool@ru.mvista.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-03-07[GFS2] Fix bz 229873, alternate test: assertion ↵Steven Whitehouse1-1/+0
"!ip->i_inode.i_mapping->nrpages" failed The following removes an incorrect assertion from the GFS2 glops code. This fixes Red Hat bz 229873. Thanks to Abhijith Das for testing the patch and confirming the fix. Signed-off-by: Steven Whitehouse <swhiteho@redhat.com> Cc: Abhijith Das <adas@redhat.com>
2007-03-07[GFS2] build fixakpm@linux-foundation.org1-0/+1
fs/gfs2/glock.c:2198: error: 'THIS_MODULE' undeclared here (not in a function) Cc: Steven Whitehouse <swhiteho@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2007-03-07[GFS2] go_drop_bh is never used, so remove itSteven Whitehouse2-4/+0
The ->go_drop_bh function is never used, so this removes it and the single caller, Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
2007-03-07[GFS2] Remove unused variableSteven Whitehouse2-2/+0
Remove an unused variable. Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
2007-03-07[GFS2] Fix bz 229831, lookup returns wrong inodeSteven Whitehouse1-1/+2
The following patch fixes Red Hat bz 229831. Without this patch its possible for the wrong inode to be returned in certain cases. It is a pretty unusual event, so that its taken some time to track down. Thanks and due to Josef Whiter who did a lot of the testing required to thrack this down and fix it. Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
2007-03-07[GFS2] Fix bz 230143, incorrect flushing of rgrpsSteven Whitehouse1-0/+2
The below patch fixes a problem where we were not flushing rgrps correctly. It only occurred in the specific case that a callback was received for an rgrp which was dirty and when a journal log flush had not already resulted in the rgrp being flushed anyway. This fixes Red Hat bz 230143, Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
2007-03-07[GFS2] pass formal ino in do_filldir_mainWendy Cheng1-2/+2
ok, the following is the minimum changes to get NFSD going before we settle down this issue .. would appreciate this in the tree so other NFS related works can get done in parallel. Signed-off-by: S. Wendy Cheng <wcheng@redhat.com> Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
2007-03-07[DLM] fs/dlm/user.c should #include "user.h"Adrian Bunk1-0/+1
Every file should include the headers containing the prototypes for it's global functions. Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
2007-03-07[GFS2] fix hangup when multiple processes are trying to write to the same fileJosef Whiter1-2/+5
This fixes a problem I encountered while running bonnie++. When you have one thread that opens a file and starts to write to it, and then another thread that tries to open and write to the same file, the second thread will loop forever trying to grab the inode lock for that inode. Basically we come in through generic_buffered_file_write, which calls gfs2_prepare_write, which then attempts to grab the glock. Because we don't own the lock, gfs2_prepare_write gets GLR_TRYFAILED, which returns AOP_TRUNCATED_PAGE to generic_buffered_file_write. At this point generic_buffered_file_write loops around again and immediately retries the prepare_write. This means that the second process never gets off of the processor in order to allow the process that holds the lock to finish its work and let go of the lock. This patch makes gfs2_glock_nq schedule() if it gets back a GLR_TRYFAILED, which resolves this problem. Signed-off-by: Josef Whiter <jwhiter@redhat.com> Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
2007-03-07[GFS2] NFS filehandle checkWendy Cheng1-4/+1
File handle checking error found in '07 NFS connectathon. The fh_type and fh_len are not necessarily identical. Some of the client machines could fail mount with stale filehandle without this patch. Signed-off-by: S. Wendy Cheng <wcheng@redhat.com> Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
2007-03-07[GFS2] add newline to printk messageRichard Fearn1-1/+1
Patch for the 2.6.20 stable tree that adds a missing newline to one of the printk messages in fs/gfs2/ops_fstype.c. Signed-off-by: Richard Fearn <richardfearn@gmail.com> Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
2007-03-07[GFS2] fix locking mistakeJosef Whiter1-1/+1
This patch fixes a locking mistake in the quota code, we do a mutex_lock instead of a mutex_unlock. Signed-off-by: Josef Whiter <jwhiter@redhat.com> Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
2007-03-06[PATCH] suspend regression: sysfs deadlockHugh Dickins1-4/+1
Suspend deadlocks when trying to unregister /sys/block/sr0. This comes from Oliver's commit 94bebf4d1b8e7719f0f3944c037a21cfd99a4af7 "Driver core: fix race in sysfs between sysfs_remove_file() and read()/write()". sysfs_write_file downs buffer->sem while calling flush_write_buffer, and flushing that particular write buffer entails downing buffer->sem in orphan_all_buffers, resulting in the obvious self-deadlock. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-03-06Merge git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6Linus Torvalds15-70/+227
* git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6: [CIFS] cifs_prepare_write was incorrectly rereading page in some cases [CIFS] Fix set file size to zero when doing chmod to Samba 3.0.26pre [CIFS] Remove some unused functions/declarations [CIFS] New file for previous commit [CIFS] cifs export operations [CIFS] small piece missing from previous patch [CIFS] Fix locking problem around some cifs uses of i_size write
2007-03-06Merge branch 'for-linus' of ↵Linus Torvalds2-64/+103
git://git.kernel.org/pub/scm/linux/kernel/git/drzeus/mmc * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/drzeus/mmc: sdhci: release irq during suspend sdhci: make isr tolerant of read errors mmc: require explicit support for high-speed ncpfs: make sure server connection survives a kill
2007-03-06[PATCH] fs: nobh_truncate_page() fixDave Kleikamp1-0/+9
This fixes a regression caused by 22c8ca78f20724676b6006232bf06cc3e9299539. nobh_prepare_write() no longer marks the page uptodate, so nobh_truncate_page() needs to do it. Signed-off-by: Dave Kleikamp <shaggy@linux.vnet.ibm.com> Cc: Nick Piggin <nickpiggin@yahoo.com.au> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-03-06[PATCH] Fix 2.6.21 rfcomm lockupsMark Lord1-0/+2
Any attempt to open/use a bluetooth rfcomm device locks up scheduling completely on my machine. Interrupts (ping, alt-sysrq) seem to be alive, but nothing else. This was working fine in 2.6.20, broken now in 2.6.21-rc2-git* Reverting this change (below) fixes it: | author Marcel Holtmann <marcel@holtmann.org> | Sat, 17 Feb 2007 22:58:57 +0000 (23:58 +0100) | committer David S. Miller <davem@sunset.davemloft.net> | Mon, 26 Feb 2007 19:42:41 +0000 (11:42 -0800) | commit c1a3313698895d8ad4760f98642007bf236af2e8 | tree 337a876f727061362b6a169f8759849c105b8f7a tree | snapshot | parent f5ffd4620aba9e55656483ae1ef5c79ba81f5403 commit | diff | | [Bluetooth] Make use of device_move() for RFCOMM TTY devices | | In the case of bound RFCOMM TTY devices the parent is not available | before its usage. So when opening a RFCOMM TTY device, move it to | the corresponding ACL device as a child. When closing the device, | move it back to the virtual device tree. | Signed-off-by: Marcel Holtmann <marcel@holtmann.org> The simplest fix for this bug is to prevent sysfs_move_dir() from self-deadlocking when (old_parent == new_parent). This patch prevents total system lockup when using rfcomm devices. Signed-off-by: Mark Lord <mlord@pobox.com> Acked-by: Cornelia Huck <cornelia.huck@de.ibm.com> Cc: Greg KH <greg@kroah.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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