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2006-03-27[PATCH] autofs4: can't mount due to mount point dir not emptyIan Kent2-13/+4
Addresse a problem where stale dentrys stop mounts from happening. When a mount point directory is pre-created and a non-existent entry within it is requested a dentry ends up being created within the mount point directory which stops future mounts. The problem is solved by ignoring negative, unhashed dentrys in the mount point d_subdirs list. Additionally the apparent cacheing of -ENOENT returns from requests is removed. The test on d_time is a tautology and d_time is not initialised and has an unexpected value. In short it doesn't do what it's meant to. The cacheing of failed requests to the daemon is important and will be followed up later. Signed-off-by: Ian Kent <raven@themaw.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-27[PATCH] autofs4: use libfs routines for readdirIan Kent1-86/+40
Change readdir routines to use the cursor based routines in libfs.c. This removes reliance on old readdir code from 2.4 and should improve efficiency of readdir in autofs4. Signed-off-by: Ian Kent <raven@themaw.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-27[PATCH] autofs4: lookup white space cleanupIan Kent1-14/+20
Whitespace and formating changes to lookup code. Signed-off-by: Ian Kent <raven@themaw.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-27[PATCH] uml: fix hostfs stack corruptionJeff Dike1-1/+0
Noted by Oleg Drokin: We initialized an extra slot of struct kstatfs.spare, sometimes causing stack corruption. Signed-off-by: Jeff Dike <jdike@addtoit.com> Cc: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it> Cc: Oleg Drokin <green@clusterfs.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-26Merge git://git.kernel.org/pub/scm/linux/kernel/git/bunk/trivialLinus Torvalds5-28/+10
* git://git.kernel.org/pub/scm/linux/kernel/git/bunk/trivial: drivers/char/ftape/lowlevel/fdc-io.c: Correct a comment Kconfig help: MTD_JEDECPROBE already supports Intel Remove ugly debugging stuff do_mounts.c: Minor ROOT_DEV comment cleanup BUG_ON() Conversion in drivers/s390/block/dasd_devmap.c BUG_ON() Conversion in mm/mempool.c BUG_ON() Conversion in mm/memory.c BUG_ON() Conversion in kernel/fork.c BUG_ON() Conversion in ipc/sem.c BUG_ON() Conversion in fs/ext2/ BUG_ON() Conversion in fs/hfs/ BUG_ON() Conversion in fs/dcache.c BUG_ON() Conversion in fs/buffer.c BUG_ON() Conversion in input/serio/hp_sdc_mlc.c BUG_ON() Conversion in md/dm-table.c BUG_ON() Conversion in md/dm-path-selector.c BUG_ON() Conversion in drivers/isdn BUG_ON() Conversion in drivers/char BUG_ON() Conversion in drivers/mtd/
2006-03-26Remove ugly debugging stuffArtem B. Bityuckiy1-9/+0
Signed-off-by: Adrian Bunk <bunk@stusta.de>
2006-03-26[PATCH] bitops: ntfs: remove generic_ffs()Akinobu Mita3-3/+32
Now the only user who are using generic_ffs() is ntfs filesystem. This patch isolates generic_ffs() as ntfs_ffs() for ntfs. Signed-off-by: Akinobu Mita <mita@miraclelinux.com> Cc: Anton Altaparmakov <aia21@cantab.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-26[PATCH] hrtimers: remove data fieldRoman Zippel1-1/+1
The nanosleep cleanup allows to remove the data field of hrtimer. The callback function can use container_of() to get it's own data. Since the hrtimer structure is anyway embedded in other structures, this adds no overhead. Signed-off-by: Roman Zippel <zippel@linux-m68k.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-26[PATCH] hrtimers: remove it_real_value calculation from proc/*/statRoman Zippel1-4/+1
Remove the it_real_value from /proc/*/stat, during 1.2.x was the last time it returned useful data (as it was directly maintained by the scheduler), now it's only a waste of time to calculate it. Return 0 instead. Signed-off-by: Roman Zippel <zippel@linux-m68k.org> Acked-by: Ingo Molnar <mingo@elte.hu> Acked-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-26[PATCH] ext3: "nobh" writeback support for filesystems blocksize < pagesizeBadari Pulavarty1-6/+0
There is no valid reason why we can't support "nobh" option for filesystems with blocksize != PAGESIZE. This patch lets them use "nobh" option for writeback mode for blocksize < pagesize. Signed-off-by: Badari Pulavarty <pbadari@us.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-26[PATCH] ext3: multi-block get_block()Badari Pulavarty1-12/+4
Mingming Cao recently added multi-block allocation support for ext3, currently used only by DIO. I added support to map multiple blocks for mpage_readpages(). This patch add support for ext3_get_block() to deal with multi-block mapping. Basically it renames ext3_direct_io_get_blocks() as ext3_get_block(). Signed-off-by: Badari Pulavarty <pbadari@us.ibm.com> Cc: Mingming Cao <cmm@us.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-26[PATCH] ext3: cleanups and WARN_ON()Andrew Morton1-125/+114
- Clean up a few little layout things and comments. - Add a WARN_ON to a case which I was wondering about. - Tune up some inlines. Cc: Mingming Cao <cmm@us.ibm.com> Cc: Badari Pulavarty <pbadari@us.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-26[PATCH] remove ->get_blocks() supportBadari Pulavarty11-68/+27
Now that get_block() can handle mapping multiple disk blocks, no need to have ->get_blocks(). This patch removes fs specific ->get_blocks() added for DIO and makes it users use get_block() instead. Signed-off-by: Badari Pulavarty <pbadari@us.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-26[PATCH] map multiple blocks for mpage_readpages()Badari Pulavarty3-22/+90
This patch changes mpage_readpages() and get_block() to get the disk mapping information for multiple blocks at the same time. b_size represents the amount of disk mapping that needs to mapped. On the successful get_block() b_size indicates the amount of disk mapping thats actually mapped. Only the filesystems who care to use this information and provide multiple disk blocks at a time can choose to do so. No changes are needed for the filesystems who wants to ignore this. [akpm@osdl.org: cleanups] Signed-off-by: Badari Pulavarty <pbadari@us.ibm.com> Cc: Mingming Cao <cmm@us.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-26[PATCH] pass b_size to ->get_block()Badari Pulavarty2-1/+10
Pass amount of disk needs to be mapped to get_block(). This way one can modify the fs ->get_block() functions to map multiple blocks at the same time. [akpm@osdl.org: performance tweak] [akpm@osdl.org: remove unneeded assignments] Signed-off-by: Badari Pulavarty <pbadari@us.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-26[PATCH] change buffer_head.b_size to size_tBadari Pulavarty3-4/+6
Increase the size of the buffer_head b_size field (only) for 64 bit platforms. Update some old and moldy comments in and around the structure as well. The b_size increase allows us to perform larger mappings and allocations for large I/O requests from userspace, which tie in with other changes allowing the get_block_t() interface to map multiple blocks at once. Signed-off-by: Nathan Scott <nathans@sgi.com> Signed-off-by: Badari Pulavarty <pbadari@us.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-26[PATCH] ext3_get_blocks: Adjust reservation window size for mblocksMingming Cao1-1/+31
Optimize the block reservation and the multiple block allocation: with the knowledge of the total number of blocks ahead, set or adjust the reservation window size properly (based on the number of blocks needed) before block allocation happens: if there isn't any reservation yet, make sure the reservation window equals to or greater than the number of blocks needed, before create an reservation window; if a reservation window is already exists, try to extends the window size to match the number of blocks to allocate. This could increase the possibility of completing multiple blocks allocation in a single request, as blocks are only allocated in the range of the inode's reservation window. Signed-off-by: Mingming Cao <cmm@us.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-26[PATCH] ext3_get_blocks: Adjust accounting info in ext3_new_blocks()Mingming Cao1-12/+19
Update accounting information (quota, boundary checks, free blocks number etc) in ext3_new_blocks(). Signed-off-by: Mingming Cao <cmm@us.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-26[PATCH] ext3_get_blocks: support multiple blocks allocation in ext3_new_block()Mingming Cao1-10/+36
Change ext3_try_to_allocate() (called via ext3_new_blocks()) to try to allocate the requested number of blocks on a best effort basis: After allocated the first block, it will always attempt to allocate the next few(up to the requested size and not beyond the reservation window) adjacent blocks at the same time. Signed-off-by: Mingming Cao <cmm@us.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-26[PATCH] ext3_get_blocks: multiple block allocationMingming Cao1-77/+193
Add support for multiple block allocation in ext3-get-blocks(). Look up the disk block mapping and count the total number of blocks to allocate, then pass it to ext3_new_block(), where the real block allocation is performed. Once multiple blocks are allocated, prepare the branch with those just allocated blocks info and finally splice the whole branch into the block mapping tree. Signed-off-by: Mingming Cao <cmm@us.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-26[PATCH] ext3_get_blocks: Mapping multiple blocks at a onceMingming Cao2-31/+79
Currently ext3_get_block() only maps or allocates one block at a time. This is quite inefficient for sequential IO workload. I have posted a early implements a simply multiple block map and allocation with current ext3. The basic idea is allocating the 1st block in the existing way, and attempting to allocate the next adjacent blocks on a best effort basis. More description about the implementation could be found here: http://marc.theaimsgroup.com/?l=ext2-devel&m=112162230003522&w=2 The following the latest version of the patch: break the original patch into 5 patches, re-worked some logicals, and fixed some bugs. The break ups are: [patch 1] Adding map multiple blocks at a time in ext3_get_blocks() [patch 2] Extend ext3_get_blocks() to support multiple block allocation [patch 3] Implement multiple block allocation in ext3-try-to-allocate (called via ext3_new_block()). [patch 4] Proper accounting updates in ext3_new_blocks() [patch 5] Adjust reservation window size properly (by the given number of blocks to allocate) before block allocation to increase the possibility of allocating multiple blocks in a single call. Tests done so far includes fsx,tiobench and dbench. The following numbers collected from Direct IO tests (1G file creation/read) shows the system time have been greatly reduced (more than 50% on my 8 cpu system) with the patches. 1G file DIO write: 2.6.15 2.6.15+patches real 0m31.275s 0m31.161s user 0m0.000s 0m0.000s sys 0m3.384s 0m0.564s 1G file DIO read: 2.6.15 2.6.15+patches real 0m30.733s 0m30.624s user 0m0.000s 0m0.004s sys 0m0.748s 0m0.380s Some previous test we did on buffered IO with using multiple blocks allocation and delayed allocation shows noticeable improvement on throughput and system time. This patch: Add support of mapping multiple blocks in one call. This is useful for DIO reads and re-writes (where blocks are already allocated), also is in line with Christoph's proposal of using getblocks() in mpage_readpage() or mpage_readpages(). Signed-off-by: Mingming Cao <cmm@us.ibm.com> Cc: Badari Pulavarty <pbadari@us.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-26[PATCH] 2tb-files-add-blkcnt_t-fixesAndrew Morton4-12/+15
Cc: Takashi Sato <sho@tnes.nec.co.jp> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-26[PATCH] mempool: use mempool_create_slab_pool()Matthew Dobson6-34/+18
Modify well over a dozen mempool users to call mempool_create_slab_pool() rather than calling mempool_create() with extra arguments, saving about 30 lines of code and increasing readability. Signed-off-by: Matthew Dobson <colpatch@us.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-26[PATCH] mempool: use common mempool kmalloc allocatorMatthew Dobson1-12/+2
This patch changes several mempool users, all of which are basically just wrappers around kmalloc(), to use the common mempool_kmalloc/kfree, rather than their own wrapper function, removing a bunch of duplicated code. Signed-off-by: Matthew Dobson <colpatch@us.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-26[PATCH] NFSD4: return conflict lock without racesAndy Adamson1-22/+16
Update the NFSv4 server to use the new posix_lock_file_conf() interface. Remove unnecessary (and race-prone) posix_test_file() calls. Signed-off-by: Andy Adamson <andros@citi.umich.edu> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com> Cc: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-26[PATCH] VFS,fs/locks.c,NFSD4: add race_free posix_lock_file_conf() interfaceAndy Adamson1-8/+24
Lockd and the NFSv4 server both exercise a race condition where posix_test_lock() is called either before or after posix_lock_file() to deal with a denied lock request due to a conflicting lock. Remove the race condition for the NFSv4 server by adding a new conflicting lock parameter to __posix_lock_file() , changing the name to __posix_lock_file_conf(). Keep posix_lock_file() interface, add posix_lock_conf() interface, both call __posix_lock_file_conf(). [akpm@osdl.org: Put the EXPORT_SYMBOL() where it belongs] Signed-off-by: Andy Adamson <andros@citi.umich.edu> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-26[PATCH] VFS,fs/locks.c: cleanup locks_insert_blockJ. Bruce Fields1-6/+1
BUG instead of handling a case that should never happen. Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-26[PATCH] Use __read_mostly on some hot fs variablesEric Dumazet12-35/+35
I discovered on oprofile hunting on a SMP platform that dentry lookups were slowed down because d_hash_mask, d_hash_shift and dentry_hashtable were in a cache line that contained inodes_stat. So each time inodes_stats is changed by a cpu, other cpus have to refill their cache line. This patch moves some variables to the __read_mostly section, in order to avoid false sharing. RCU dentry lookups can go full speed. Signed-off-by: Eric Dumazet <dada1@cosmosbay.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-26[PATCH] Make address_space_operations->invalidatepage return voidNeilBrown8-34/+29
The return value of this function is never used, so let's be honest and declare it as void. Some places where invalidatepage returned 0, I have inserted comments suggesting a BUG_ON. [akpm@osdl.org: JBD BUG fix] [akpm@osdl.org: rework for git-nfs] [akpm@osdl.org: don't go BUG in block_invalidate_page()] Signed-off-by: Neil Brown <neilb@suse.de> Acked-by: Dave Kleikamp <shaggy@austin.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-26[PATCH] Make address_space_operations->sync_page return voidNeilBrown2-4/+5
The only user ignores the return value, and the only instanace (block_sync_page) always returns 0... Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-26[PATCH] sem2mutex: fs/Ingo Molnar11-89/+99
Semaphore to mutex conversion. The conversion was generated via scripts, and the result was validated automatically via a script as well. Signed-off-by: Ingo Molnar <mingo@elte.hu> Cc: Eric Van Hensbergen <ericvh@ericvh.myip.org> Cc: Robert Love <rml@tech9.net> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: David Woodhouse <dwmw2@infradead.org> Cc: Neil Brown <neilb@cse.unsw.edu.au> Cc: Trond Myklebust <trond.myklebust@fys.uio.no> Cc: Dave Kleikamp <shaggy@austin.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-26[PATCH] protect remove_proc_entrySteven Rostedt2-3/+31
It has been discovered that the remove_proc_entry has a race in the removing of entries in the proc file system that are siblings. There's no protection around the traversing and removing of elements that belong in the same subdirectory. This subdirectory list is protected in other areas by the BKL. So the BKL was at first used to protect this area too, but unfortunately, remove_proc_entry may be called with spinlocks held. The BKL may schedule, so this was not a solution. The final solution was to add a new global spin lock to protect this list, called proc_subdir_lock. This lock now protects the list in remove_proc_entry, and I also went around looking for other areas that this list is modified and added this protection there too. Care must be taken since these locations call several functions that may also schedule. Since I don't see any location that these functions that modify the subdirectory list are called by interrupts, the irqsave/restore versions of the spin lock was _not_ used. Signed-off-by: Steven Rostedt <rostedt@goodmis.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-26BUG_ON() Conversion in fs/ext2/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>
2006-03-26BUG_ON() Conversion in fs/hfs/Eric Sesterhenn2-8/+4
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>
2006-03-26BUG_ON() Conversion in fs/dcache.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>
2006-03-26BUG_ON() Conversion in fs/buffer.cEric Sesterhenn1-6/+3
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>
2006-03-25Merge branch 'audit.b3' of ↵Linus Torvalds3-8/+22
git://git.kernel.org/pub/scm/linux/kernel/git/viro/audit-current * 'audit.b3' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/audit-current: (22 commits) [PATCH] fix audit_init failure path [PATCH] EXPORT_SYMBOL patch for audit_log, audit_log_start, audit_log_end and audit_format [PATCH] sem2mutex: audit_netlink_sem [PATCH] simplify audit_free() locking [PATCH] Fix audit operators [PATCH] promiscuous mode [PATCH] Add tty to syscall audit records [PATCH] add/remove rule update [PATCH] audit string fields interface + consumer [PATCH] SE Linux audit events [PATCH] Minor cosmetic cleanups to the code moved into auditfilter.c [PATCH] Fix audit record filtering with !CONFIG_AUDITSYSCALL [PATCH] Fix IA64 success/failure indication in syscall auditing. [PATCH] Miscellaneous bug and warning fixes [PATCH] Capture selinux subject/object context information. [PATCH] Exclude messages by message type [PATCH] Collect more inode information during syscall processing. [PATCH] Pass dentry, not just name, in fsnotify creation hooks. [PATCH] Define new range of userspace messages. [PATCH] Filter rule comparators ... Fixed trivial conflict in security/selinux/hooks.c
2006-03-25Merge git://git.linux-nfs.org/pub/linux/nfs-2.6Linus Torvalds40-1672/+2342
* git://git.linux-nfs.org/pub/linux/nfs-2.6: (103 commits) SUNRPC,RPCSEC_GSS: spkm3--fix config dependencies SUNRPC,RPCSEC_GSS: spkm3: import contexts using NID_cast5_cbc LOCKD: Make nlmsvc_traverse_shares return void LOCKD: nlmsvc_traverse_blocks return is unused SUNRPC,RPCSEC_GSS: fix krb5 sequence numbers. NFSv4: Dont list system.nfs4_acl for filesystems that don't support it. SUNRPC,RPCSEC_GSS: remove unnecessary kmalloc of a checksum SUNRPC: Ensure rpc_call_async() always calls tk_ops->rpc_release() SUNRPC: Fix memory barriers for req->rq_received NFS: Fix a race in nfs_sync_inode() NFS: Clean up nfs_flush_list() NFS: Fix a race with PG_private and nfs_release_page() NFSv4: Ensure the callback daemon flushes signals SUNRPC: Fix a 'Busy inodes' error in rpc_pipefs NFS, NLM: Allow blocking locks to respect signals NFS: Make nfs_fhget() return appropriate error values NFSv4: Fix an oops in nfs4_fill_super lockd: blocks should hold a reference to the nlm_file NFSv4: SETCLIENTID_CONFIRM should handle NFS4ERR_DELAY/NFS4ERR_RESOURCE NFSv4: Send the delegation stateid for SETATTR calls ...
2006-03-25[PATCH] x86_64: Increase the variability of the process stack on 64bit ↵Andi Kleen1-4/+9
architectures 8MB is not really very random, use 1GB (or more with larger page sizes) instead. Also use the low bits of the random generator output now instead of throwing them away. Only enabled on x86-64 right now. Other architectures need to add a suitable STACK_RND_MASK Cc: mingo@elte.hu Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-25Merge branch 'upstream-linus' of git://oss.oracle.com/home/sourcebo/git/ocfs2Linus Torvalds29-490/+749
* 'upstream-linus' of git://oss.oracle.com/home/sourcebo/git/ocfs2: ocfs2: finally remove MLF* macros ocfs2: don't use MLF* in the file system ocfs2: don't use MLF* in dlm/ files ocfs2: don't use MLF* in cluster/ files [PATCH] ocfs2: dlm recovery fixes [PATCH] ocfs2: fix hang in dlm lock resource mastery ocfs2: use __attribute__ format
2006-03-25Merge git://git.kernel.org/pub/scm/linux/kernel/git/bunk/trivialLinus Torvalds5-7/+5
* git://git.kernel.org/pub/scm/linux/kernel/git/bunk/trivial: (21 commits) BUG_ON() Conversion in drivers/video/ BUG_ON() Conversion in drivers/parisc/ BUG_ON() Conversion in drivers/block/ BUG_ON() Conversion in sound/sparc/cs4231.c BUG_ON() Conversion in drivers/s390/block/dasd.c BUG_ON() Conversion in lib/swiotlb.c BUG_ON() Conversion in kernel/cpu.c BUG_ON() Conversion in ipc/msg.c BUG_ON() Conversion in block/elevator.c BUG_ON() Conversion in fs/coda/ BUG_ON() Conversion in fs/binfmt_elf_fdpic.c BUG_ON() Conversion in input/serio/hil_mlc.c BUG_ON() Conversion in md/dm-hw-handler.c BUG_ON() Conversion in md/bitmap.c The comment describing how MS_ASYNC works in msync.c is confusing rcu: undeclared variable used in documentation fix typos "wich" -> "which" typo patch for fs/ufs/super.c Fix simple typos tabify drivers/char/Makefile ...
2006-03-25[PATCH] flat binary loader doesn't check fd table fullLuke Yang1-19/+54
In binfmt_flat.c, the flat binary loader should check file descriptor table and install the fd on the file. Convert the function to single-exit and fix this bug. Signed-off-by: "Luke Yang" <luke.adi@gmail.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-25[PATCH] remove needless check in fs/read_write.cCarsten Otte1-1/+1
nr_segs is unsigned long and thus cannot be negative. We checked against 0 few lines before. Signed-off-by: Carsten Otte <cotte@de.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-25[PATCH] remove needless check in binfmt_elf.cCarsten Otte1-1/+1
Local variable i is unsigned int and thus cannot be negative. (akpm: unsigneds shouldn't be called `i'. This value cannot possibly be negative anyway). Signed-off-by: Carsten Otte <cotte@de.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-25[PATCH] direct-io: bug fix in dio handling write errorChen, Kenneth W1-1/+7
There is a bug in direct-io on propagating write error up to the higher I/O layer. When performing an async ODIRECT write to a block device, if a device error occurred (like media error or disk is pulled), the error code is only propagated from device driver to the DIO layer. The error code stops at finished_one_bio(). The aysnc write, however, is supposedly have a corresponding AIO event with appropriate return code (in this case -EIO). Application which waits on the async write event, will hang forever since such AIO event is lost forever (if such app did not use the timeout option in io_getevents call. Regardless, an AIO event is lost). The discovery of above bug leads to another discovery of potential race window with dio->result. The fundamental problem is that dio->result is overloaded with dual use: an indicator of fall back path for partial dio write, and an error indicator used in the I/O completion path. In the event of device error, the setting of -EIO to dio->result clashes with value used to track partial write that activates the fall back path. It was also pointed out that it is impossible to use dio->result to track partial write and at the same time to track error returned from device driver. Because direct_io_work can only determines whether it is a partial write at the end of io submission and in mid stream of those io submission, a return code could be coming back from the driver. Thus messing up all the subsequent logic. Proposed fix is to separating out error code returned by the IO completion path from partial IO submit tracking. A new variable is added to dio structure specifically to track io error returned in the completion path. Signed-off-by: Ken Chen <kenneth.w.chen@intel.com> Acked-by: Zach Brown <zach.brown@oracle.com> Acked-by: Suparna Bhattacharya <suparna@in.ibm.com> Cc: Badari Pulavarty <pbadari@us.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-25[PATCH] udf: fix uid/gid options and add uid/gid=ignore and forget optionsPhillip Susi1-4/+2
As Pekka Enberg pointed out, with the if still following the else, you can still get a null uid written to the disk if you specify a default uid= without uid=forget. In other words, if the desktop user is uid=1000 and the mount option uid=1000 is given ( which is done on ubuntu automatically and probably other distributions that use hal ), then if any other user besides uid 1000 owns a file then a 0 will be written to the media as the owning uid instead. Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-25[PATCH] use kzalloc and kcalloc in core fs codeOliver Neukum8-22/+10
Signed-off-by: Oliver Neukum <oliver@neukum.name> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-25[PATCH] compat_sys_nfsservctl(): handle errors correctlyPeter Staubach1-1/+4
Correct some error handling on the compat version of the nfsservctl() system. It was detecting errors while copying in the arguments from user space, but then attempting to use the arguments anyway. This didn't seem so good. Signed-off-by: Peter Staubach <staubach@redhat.com> Cc: Trond Myklebust <trond.myklebust@fys.uio.no> Cc: Neil Brown <neilb@cse.unsw.edu.au> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-25[PATCH] Ext2 flags shouldn't report "nogrpid"Rob Landley1-2/+0
If I mount ext2 "rw", I want it to say "rw", not "rw,nogrpid". I caught this writing an automated regression test script for the busybox mount command. The symptom is /dev/loop0 on /images/ext2.dir type ext2 (rw,nogrpid) instead of: /dev/loop0 on /images/ext2.dir type ext2 (rw) The behavior was introduced by git commit 8fc2751beb0941966d3a97b26544e8585e428c08. Signed-off-by: Rob Landley <rob@landley.net> Cc: Mark Bellon <mbellon@mvista.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-25[PATCH] Honour AOP_TRUNCATE_PAGE returns in page_symlinkNeilBrown1-2/+14
As prepare_write, commit_write and readpage are allowed to return AOP_TRUNCATE_PAGE, page_symlink should respond to them. Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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