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2006-04-11[PATCH] 9p: handle sget() failureEric Van Hensbergen1-3/+10
Handle a failing sget() in v9fs_get_sb(). Signed-off-by: Christoph Hellwig <hch@lst.de> 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>
2006-04-11[PATCH] vfs: propagate mnt_flags into do_loopback/vfsmountHerbert Poetzl1-2/+5
The mnt_flags are propagated into do_loopback(), so that they can be stored with the vfsmount Signed-off-by: Herbert Poetzl <herbert@13thfloor.at> Acked-by: Christoph Hellwig <hch@infradead.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-04-11[PATCH] sync_file_range(): use unsigned for flagsAndrew Morton1-2/+2
Ulrich suggested that the `flags' arg to sync_file_range() become unsigned. Cc: Ulrich Drepper <drepper@redhat.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-04-11[PATCH] Add GFP_NOWAITJeff Dike1-1/+1
Introduce GFP_NOWAIT, as an alias for GFP_ATOMIC & ~__GFP_HIGH. This also changes XFS, which is the only in-tree user of this idiom that I could find. The XFS piece is compile-tested only. Signed-off-by: Jeff Dike <jdike@addtoit.com> Acked-by: Nathan Scott <nathans@sgi.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-04-11[PATCH] select() warning fixesAndrew Morton1-7/+7
fs/select.c: In function `core_sys_select': fs/select.c:339: warning: assignment from incompatible pointer type fs/select.c:376: warning: comparison of distinct pointer types lacks a cast By using a void* we can remove lots of casts rather than adding more. Cc: Jes Sorensen <jes@trained-monkey.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-04-11[XFS] Fix a problem in aligning inode allocations to stripe unitNathan Scott1-7/+8
boundaries. SGI-PV: 951862 SGI-Modid: xfs-linux-melb:xfs-kern:25726a Signed-off-by: Nathan Scott <nathans@sgi.com>
2006-04-11[XFS] Fix utime(2) in the case that no times parameter was passed in. Nathan Scott1-2/+1
SGI-PV: 949858 SGI-Modid: xfs-linux-melb:xfs-kern:25717a Signed-off-by: Jes Sorensen <jes@sgi.com> Signed-off-by: Nathan Scott <nathans@sgi.com>
2006-04-11[XFS] Fix an inode use-after-free durin an unpin. When reclaiming inodesDavid Chinner1-7/+20
that have been unlinked, we may need to execute transactions during reclaim. By the time the transaction has hit the disk, the linux inode and xfs vnode may already have been freed so we can't reference them safely. Use the known xfs inode state to determine if it is safe to reference the vnode and linux inode during the unpin operation. SGI-PV: 946321 SGI-Modid: xfs-linux-melb:xfs-kern:25687a Signed-off-by: David Chinner <dgc@sgi.com> Signed-off-by: Nathan Scott <nathans@sgi.com>
2006-04-11[XFS] Fix inode reclaim scalability regression. When a filesystem hasDavid Chinner2-17/+13
millions of inodes cached and has sparse cluster population, removing inodes from the cluster hash consumes excessive amounts of CPU time. Reduce the CPU cost by making removal O(1) via use of a double linked list for the hash chains. SGI-PV: 951551 SGI-Modid: xfs-linux-melb:xfs-kern:25683a Signed-off-by: David Chinner <dgc@sgi.com> Signed-off-by: Nathan Scott <nathans@sgi.com>
2006-04-11[XFS] Fix a writepage regression where we accidentally stopped honouringNathan Scott1-9/+9
nonblock mode with the new IO path code (since 2.6.16). SGI-PV: 951662 SGI-Modid: xfs-linux-melb:xfs-kern:25676a Signed-off-by: Nathan Scott <nathans@sgi.com>
2006-04-11[XFS] Fix superblock validation regression for the zero imaxpct case. Nathan Scott1-1/+1
Thanks to kjamieson for noticing. SGI-PV: 951661 SGI-Modid: xfs-linux-melb:xfs-kern:25675a Signed-off-by: Nathan Scott <nathans@sgi.com>
2006-04-10Merge branch 'upstream-linus' of git://oss.oracle.com/home/sourcebo/git/ocfs2Linus Torvalds5-36/+101
* 'upstream-linus' of git://oss.oracle.com/home/sourcebo/git/ocfs2: [PATCH] CONFIGFS_FS must depend on SYSFS [PATCH] Bogus NULL pointer check in fs/configfs/dir.c ocfs2: Better I/O error handling in heartbeat ocfs2: test and set teardown flag early in user_dlm_destroy_lock() ocfs2: Handle the DLM_CANCELGRANT case in user_unlock_ast() ocfs2: catch an invalid ast case in dlmfs ocfs2: remove an overly aggressive BUG() in dlmfs ocfs2: multi node truncate fix
2006-04-10[PATCH] de_thread: Don't confuse users do_each_thread.Eric W. Biederman1-1/+6
Oleg Nesterov spotted two interesting bugs with the current de_thread code. The simplest is a long standing double decrement of __get_cpu_var(process_counts) in __unhash_process. Caused by two processes exiting when only one was created. The other is that since we no longer detach from the thread_group list it is possible for do_each_thread when run under the tasklist_lock to see the same task_struct twice. Once on the task list as a thread_group_leader, and once on the thread list of another thread. The double appearance in do_each_thread can cause a double increment of mm_core_waiters in zap_threads resulting in problems later on in coredump_wait. To remedy those two problems this patch takes the simple approach of changing the old thread group leader into a child thread. The only routine in release_task that cares is __unhash_process, and it can be trivially seen that we handle cleaning up a thread group leader properly. Since de_thread doesn't change the pid of the exiting leader process and instead shares it with the new leader process. I change thread_group_leader to recognize group leadership based on the group_leader field and not based on pids. This should also be slightly cheaper then the existing thread_group_leader macro. I performed a quick audit and I couldn't see any user of thread_group_leader that cared about the difference. Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-04-10[PATCH] CONFIGFS_FS must depend on SYSFSAdrian Bunk1-1/+1
This patch fixes the a compile error with CONFIG_SYSFS=n Configfs is creating, as a matter of policy, the /sys/kernel/config mountpoint. This means it requires CONFIG_SYSFS. Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Joel Becker <joel.becker@oracle.com> Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-04-10[PATCH] Bogus NULL pointer check in fs/configfs/dir.cEric Sesterhenn1-1/+1
We check the "group" pointer after we dereference it. This check is bogus, as it cannot be NULL coming in. Signed-off-by: Joel Becker <joel.becker@oracle.com> Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-04-07ocfs2: Better I/O error handling in heartbeatMark Fasheh1-8/+32
Propagate errors received in o2hb_bio_end_io() back to the heartbeat thread so it can skip re-arming the timer. Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-04-07ocfs2: test and set teardown flag early in user_dlm_destroy_lock()Mark Fasheh1-3/+14
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-04-07ocfs2: Handle the DLM_CANCELGRANT case in user_unlock_ast()Mark Fasheh1-12/+22
Remove the code which attempted to catch it via dlmunlock() return status - this never happens there. Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-04-07ocfs2: catch an invalid ast case in dlmfsMark Fasheh1-0/+4
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-04-07ocfs2: remove an overly aggressive BUG() in dlmfsMark Fasheh1-4/+17
Don't BUG() user_dlm_unblock_lock() on the absence of the USER_LOCK_BLOCKED flag - this turns out to be a valid case. Make some of the related BUG() statements print more useful information. Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-04-07ocfs2: multi node truncate fixMark Fasheh1-8/+11
Fix ocfs2_truncate_file() so that it forces a truncate_inode_pages() on all interested nodes in all cases of a truncate(), not just allocation change. Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-04-02Merge branch 'splice' of git://brick.kernel.dk/data/git/linux-2.6-blockLinus Torvalds2-40/+141
* 'splice' of git://brick.kernel.dk/data/git/linux-2.6-block: [PATCH] splice: fix page stealing LRU handling. [PATCH] splice: page stealing needs to wait_on_page_writeback() [PATCH] splice: export generic_splice_sendpage [PATCH] splice: add a SPLICE_F_MORE flag [PATCH] splice: add comments documenting more of the code [PATCH] splice: improve writeback and clean up page stealing [PATCH] splice: fix shadow[] filling logic
2006-04-02[PATCH] splice: fix page stealing LRU handling.Jens Axboe2-19/+14
Originally from Nick Piggin, just adapted to the newer branch. You can't check PageLRU without holding zone->lru_lock. The page release code can get away with it only because the page refcount is 0 at that point. Also, you can't reliably remove pages from the LRU unless the refcount is 0. Ever. Signed-off-by: Nick Piggin <nickpiggin@yahoo.com.au> Signed-off-by: Jens Axboe <axboe@suse.de>
2006-04-02[PATCH] splice: page stealing needs to wait_on_page_writeback()Jens Axboe1-0/+9
Thanks to Andrew for the good explanation of why this is so. akpm writes: If a page is under writeback and we remove it from pagecache, it's still going to get written to disk. But the VFS no longer knows about that page, nor that this page is about to modify disk blocks. So there might be scenarios in which those blocks-which-are-about-to-be-written-to get reused for something else. When writeback completes, it'll scribble on those blocks. This won't happen in ext2/ext3-style filesystems in normal mode because the page has buffers and try_to_release_page() will fail. But ext2 in nobh mode doesn't attach buffers at all - it just sticks the page in a BIO, finds some new blocks, points the BIO at those blocks and lets it rip. While that write IO's in flight, someone could truncate the file. Truncate won't block on the writeout because the page isn't in pagecache any more. So truncate will the free the blocks from the file under the page's feet. Then something else can reallocate those blocks. Then write data to them. Now, the original write completes, corrupting the filesystem. Signed-off-by: Jens Axboe <axboe@suse.de>
2006-04-02[PATCH] splice: export generic_splice_sendpageJens Axboe1-2/+5
Forgot that one, thanks Jeff. Also move the other EXPORT_SYMBOL to right below the functions. Signed-off-by: Jens Axboe <axboe@suse.de>
2006-04-02[PATCH] splice: add a SPLICE_F_MORE flagJens Axboe1-2/+3
This lets userspace indicate whether more data will be coming in a subsequent splice call. Signed-off-by: Jens Axboe <axboe@suse.de>
2006-04-02[PATCH] splice: add comments documenting more of the codeJens Axboe1-4/+66
Hopefully this will make Andrew a little more happy. Signed-off-by: Jens Axboe <axboe@suse.de>
2006-04-02[PATCH] splice: improve writeback and clean up page stealingJens Axboe2-17/+48
By cleaning up the writeback logic (killing write_one_page() and the manual set_page_dirty()), we can get rid of ->stolen inside the pipe_buffer and just keep it local in pipe_to_file(). This also adds dirty page balancing logic and O_SYNC handling. Signed-off-by: Jens Axboe <axboe@suse.de>
2006-04-02[PATCH] splice: fix shadow[] filling logicJens Axboe1-3/+3
Clear the entire range, and don't increment pidx or we keep filling the same position again and again. Thanks to KAMEZAWA Hiroyuki. Signed-off-by: Jens Axboe <axboe@suse.de>
2006-04-02Merge git://oss.sgi.com:8090/oss/git/xfs-2.6Linus Torvalds17-163/+309
* git://oss.sgi.com:8090/oss/git/xfs-2.6: [XFS] Provide XFS support for the splice syscall. [XFS] Reenable write barriers by default. [XFS] Make project quota enforcement return an error code consistent with [XFS] Implement the silent parameter to fill_super, previously ignored. [XFS] Cleanup comment to remove reference to obsoleted function
2006-04-02[PATCH] sysfs: zero terminate sysfs write buffersGreg Kroah-Hartman1-1/+1
No one should be writing a PAGE_SIZE worth of data to a normal sysfs file, so properly terminate the buffer. Thanks to Al Viro for pointing out my supidity here. Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-04-02Merge git://git.kernel.org/pub/scm/linux/kernel/git/bunk/trivialLinus Torvalds14-48/+25
* git://git.kernel.org/pub/scm/linux/kernel/git/bunk/trivial: (48 commits) Documentation: fix minor kernel-doc warnings BUG_ON() Conversion in drivers/net/ BUG_ON() Conversion in drivers/s390/net/lcs.c BUG_ON() Conversion in mm/slab.c BUG_ON() Conversion in mm/highmem.c BUG_ON() Conversion in kernel/signal.c BUG_ON() Conversion in kernel/signal.c BUG_ON() Conversion in kernel/ptrace.c BUG_ON() Conversion in ipc/shm.c BUG_ON() Conversion in fs/freevxfs/ BUG_ON() Conversion in fs/udf/ BUG_ON() Conversion in fs/sysv/ BUG_ON() Conversion in fs/inode.c BUG_ON() Conversion in fs/fcntl.c BUG_ON() Conversion in fs/dquot.c BUG_ON() Conversion in md/raid10.c BUG_ON() Conversion in md/raid6main.c BUG_ON() Conversion in md/raid5.c Fix minor documentation typo BFP->BPF in Documentation/networking/tuntap.txt ...
2006-04-02splice: add SPLICE_F_NONBLOCK flagLinus Torvalds1-4/+21
It doesn't make the splice itself necessarily nonblocking (because the actual file descriptors that are spliced from/to may block unless they have the O_NONBLOCK flag set), but it makes the splice pipe operations nonblocking. Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-04-02Documentation: fix minor kernel-doc warningsMartin Waitz1-1/+1
This patch updates the comments to match the actual code. Signed-off-by: Martin Waitz <tali@admingilde.org> Signed-off-by: Adrian Bunk <bunk@stusta.de>
2006-04-02BUG_ON() Conversion in fs/freevxfs/Eric Sesterhenn1-6/+3
this changes if() BUG(); constructs to BUG_ON() which is cleaner, contains unlikely() and can better optimized away. Signed-off-by: Eric Sesterhenn <snakebyte@gmx.de> Signed-off-by: Adrian Bunk <bunk@stusta.de>
2006-04-02BUG_ON() Conversion in fs/udf/Eric Sesterhenn1-4/+2
this changes if() BUG(); constructs to BUG_ON() which is cleaner, contains unlikely() and can better optimized away. Signed-off-by: Eric Sesterhenn <snakebyte@gmx.de> Signed-off-by: Adrian Bunk <bunk@stusta.de>
2006-04-02BUG_ON() Conversion in fs/sysv/Eric Sesterhenn1-4/+2
this changes if() BUG(); constructs to BUG_ON() which is cleaner, contains unlikely() and can better optimized away. Signed-off-by: Eric Sesterhenn <snakebyte@gmx.de> Signed-off-by: Adrian Bunk <bunk@stusta.de>
2006-04-02BUG_ON() Conversion in fs/inode.cEric Sesterhenn1-10/+5
this changes if() BUG(); constructs to BUG_ON() which is cleaner and can better optimized away Signed-off-by: Eric Sesterhenn <snakebyte@gmx.de> Signed-off-by: Adrian Bunk <bunk@stusta.de>
2006-04-02BUG_ON() Conversion in fs/fcntl.cEric Sesterhenn1-2/+1
this changes if() BUG(); constructs to BUG_ON() which is cleaner and can better optimized away Signed-off-by: Eric Sesterhenn <snakebyte@gmx.de> Signed-off-by: Adrian Bunk <bunk@stusta.de>
2006-04-02BUG_ON() Conversion in fs/dquot.cEric Sesterhenn1-4/+2
this changes if() BUG(); constructs to BUG_ON() which is cleaner and can better optimized away Signed-off-by: Eric Sesterhenn <snakebyte@gmx.de> Signed-off-by: Adrian Bunk <bunk@stusta.de>
2006-04-02Merge with git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6.gitAdrian Bunk20-156/+524
2006-03-31Merge master.kernel.org:/pub/scm/linux/kernel/git/sfrench/cifs-2.6Linus Torvalds20-156/+524
* master.kernel.org:/pub/scm/linux/kernel/git/sfrench/cifs-2.6: [CIFS] Fix typo in earlier cifs_unlink change and protect one [CIFS] Incorrect signature sent on SMB Read [CIFS] Fix unlink oops when indirectly called in rename error path [CIFS] Fix two remaining coverity scan tool warnings. [CIFS] Set correct lock type on new posix unlock call [CIFS] Upate cifs change log [CIFS] Fix slow oplock break response when mounts to different [CIFS] Workaround various server bugs found in testing at connectathon [CIFS] Allow fallback for setting file size to Procom SMB server when [CIFS] Make POSIX CIFS Extensions SetFSInfo match exactly what we want [CIFS] Move noisy debug message (triggerred by some older servers) from [CIFS] Use correct pid on new cifs posix byte range lock call [CIFS] Add posix (advisory) byte range locking support to cifs client [CIFS] CIFS readdir perf optimizations part 1 [CIFS] Free small buffers earlier so we exceed the cifs [CIFS] Fix large (ie over 64K for MaxCIFSBufSize) buffer case for wrapping [CIFS] Convert remaining places in fs/cifs from [CIFS] SessionSetup cleanup part 2 [CIFS] fix compile error (typo) and warning in cifssmb.c [CIFS] Cleanup NTLMSSP session setup handling
2006-04-01BUG_ON() Conversion in fs/sysfs/Eric Sesterhenn1-2/+1
this changes if() BUG(); constructs to BUG_ON() which is cleaner, contains unlikely() and can better optimized away. Signed-off-by: Eric Sesterhenn <snakebyte@gmx.de> Signed-off-by: Adrian Bunk <bunk@stusta.de>
2006-04-01BUG_ON() Conversion in fs/smbfs/Eric Sesterhenn1-4/+2
this changes if() BUG(); constructs to BUG_ON() which is cleaner, contains unlikely() and can better optimized away. Signed-off-by: Eric Sesterhenn <snakebyte@gmx.de> Signed-off-by: Adrian Bunk <bunk@stusta.de>
2006-04-01BUG_ON() Conversion in fs/jffs2/Eric Sesterhenn1-2/+1
this changes if() BUG(); constructs to BUG_ON() which is cleaner, contains unlikely() and can better optimized away. Signed-off-by: Eric Sesterhenn <snakebyte@gmx.de> Signed-off-by: Adrian Bunk <bunk@stusta.de>
2006-04-01BUG_ON() Conversion in fs/hfsplus/Eric Sesterhenn2-6/+3
this changes if() BUG(); constructs to BUG_ON() which is cleaner, contains unlikely() and can better optimized away. Signed-off-by: Eric Sesterhenn <snakebyte@gmx.de> Signed-off-by: Adrian Bunk <bunk@stusta.de>
2006-04-01BUG_ON() Conversion in fs/exec.cEric Sesterhenn1-1/+1
this changes if() BUG(); constructs to BUG_ON() which is cleaner and can better optimized away Signed-off-by: Eric Sesterhenn <snakebyte@gmx.de> Signed-off-by: Adrian Bunk <bunk@stusta.de>
2006-04-01BUG_ON() Conversion in fs/direct-io.cEric Sesterhenn1-2/+1
this changes if() BUG(); constructs to BUG_ON() which is cleaner and can better optimized away Signed-off-by: Eric Sesterhenn <snakebyte@gmx.de> Signed-off-by: Adrian Bunk <bunk@stusta.de>
2006-03-31[CIFS] Fix typo in earlier cifs_unlink change and protect oneSteve French1-5/+7
extra path. Since cifs_unlink can also be called from rename path and there was one report of oops am making the extra check for null inode. Signed-off-by: Steve French <sfrench@us.ibm.com>
2006-03-31[CIFS] Incorrect signature sent on SMB ReadSteve French1-13/+23
Fixes Samba bug 3621 and kernel.org bug 6147 For servers which require SMB/CIFS packet signing, we were sending the wrong signature (all zeros) on SMB Read request. The new cifs routine to do signatures across an iovec was not complete - and SMB Read, unlike the new SMBWrite2, did not fall back to the older routine (ie use SendReceive vs. the more efficient SendReceive2 ie used the older cifs_sign_smb vs. the disabled cifs_sign_smb2) for calculating signatures. This finishes up cifs_sign_smb2/cifs_calc_signature2 so that the callers of SendReceive2 can get SMB/CIFS packet signatures. Now that cifs_sign_smb2 is supported, we could start using it in the write path but this smaller fix does not include the change to use SMBWrite2 when signatures are required (which when enabled will make more Writes more efficient and alloc less memory). Currently Write2 is only used when signatures are not required at the moment but after more testing we will enable that as well). Thanks to James Slepicka and Sam Flory for initial investigation. Signed-off-by: Steve French <sfrench@us.ibm.com>
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