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2010-03-03sanitize signedness/const for pointers to char in hpfs a bitAl Viro10-82/+97
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2010-03-03new helper: iterate_mounts()Al Viro3-34/+33
apply function to vfsmounts in set returned by collect_mounts(), stop if it returns non-zero. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2010-03-03fix NFS4 handling of mountpoint statAl Viro1-3/+9
RFC says we need to follow the chain of mounts if there's more than one stacked on that point. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2010-03-03Clean follow_dotdot() up a bitAl Viro1-16/+3
No need to open-code follow_up() in it and locking can be lighter. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2010-03-03fix mnt_mountpoint abuse in smackAl Viro1-1/+1
(mnt,mnt_mountpoint) pair is conceptually wrong; if you want to use it for generating pathname and for nothing else *and* if you know that vfsmount tree is unchanging, you can get away with that, but the right solution for that is (mnt,mnt_root). Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2010-03-03a couple of mntget+dget -> path_get in nfs4procAl Viro1-4/+4
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2010-03-03Switch alloc_nfs_open_context() to struct pathAl Viro1-4/+4
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2010-03-03New helper: path_is_under(path1, path2)Al Viro3-39/+37
Analog of is_subdir for vfsmount,dentry pairs, moved from audit_tree.c Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2010-03-03VFS: Clean up shared mount flag propagationValerie Aurora3-3/+12
The handling of mount flags in set_mnt_shared() got a little tangled up during previous cleanups, with the following problems: * MNT_PNODE_MASK is defined as a literal constant when it should be a bitwise xor of other MNT_* flags * set_mnt_shared() clears and then sets MNT_SHARED (part of MNT_PNODE_MASK) * MNT_PNODE_MASK could use a comment in mount.h * MNT_PNODE_MASK is a terrible name, change to MNT_SHARED_MASK This patch fixes these problems. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2010-03-03kill unused invalidate_inode_pages helperChristoph Hellwig4-9/+3
No one is calling this anymore as everyone has switched to invalidate_mapping_pages long time ago. Also update a few references to it in comments. nfs has two more, but I can't easily figure what they are actually referring to, so I left them as-is. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2010-03-03fs: re-order super_block to remove 16 bytes of padding on 64bit buildsRichard Kennedy1-6/+6
re-order structure super_block to remove 16 bytes of alignment padding on 64bit builds. This shrinks the size of super_block from 712 to 696 bytes so requiring one fewer 64 byte cache lines. Signed-off-by: Richard Kennedy <richard@rsk.demon.co.uk> ----- patch against 2.6.33-rc5 compiled & tested on x86_64 AMDX2 desktop machine. I've been running with this patch applied for several weeks with no problems. regards Richard Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2010-03-03Simplify failure exits in s390/hypfs fill_super()Al Viro1-29/+13
->kill_sb() will be called after any failure exit, so no need to duplicate what it can do. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2010-03-03Don't bother with d_genocide in rpc_pipeAl Viro1-7/+2
kill_litter_super() from ->kill_sb() will take care of the junk
2010-03-03Use kill_litter_super() in autofs4 ->kill_sb()Al Viro1-61/+1
... and get rid of open-coding its guts (i.e. RIP autofs4_force_release()) Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2010-03-03Get rid of mnt_mountpoint abuses in ext4Al Viro1-4/+2
path to mnt/mnt->mnt_root is no worse than that to mnt->mnt_parent/mnt->mnt_mountpoint *and* needs no pinning the sucker down (mnt is not going away and mnt->mnt_root won't change) Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2010-03-03Sanitize autofs_dev_ioctl_ismountpoint()Al Viro1-7/+4
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2010-03-03switch infiniband uverbs to anon_inodesAl Viro4-81/+29
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2010-03-03add several pieces to shared subtree documentationAl Viro1-1/+15
* document locking * add the missing part of data structure invariants (relationship between mnt_share and mnt_slave lists in case of a peer group among slaves). Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2010-03-03Kill CL_PROPAGATION, sanitize fs/pnode.c:get_source()Al Viro3-14/+19
First of all, get_source() never results in CL_PROPAGATION alone. We either get CL_MAKE_SHARED (for the continuation of peer group) or CL_SLAVE (slave that is not shared) or both (beginning of peer group among slaves). Massage the code to make that explicit, kill CL_PROPAGATION test in clone_mnt() (nothing sets CL_MAKE_SHARED without CL_PROPAGATION and in clone_mnt() we are checking CL_PROPAGATION after we'd found that there's no CL_SLAVE, so the check for CL_MAKE_SHARED would do just as well). Fix comments, while we are at it... Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2010-03-03Switch gfs2 to nd_set_link()Al Viro1-86/+27
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2010-03-03Switch may_open() and break_lease() to passing O_...Al Viro8-21/+18
... instead of mixing FMODE_ and O_ Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2010-03-03fs: improve remount,ro vs buffercache coherencyNick Piggin1-3/+15
Invalidate sb->s_bdev on remount,ro. Fixes a problem reported by Jorge Boncompte who is seeing corruption trying to snapshot a minix filesystem image. Some filesystems modify their metadata via a path other than the bdev buffer cache (eg. they may use a private linear mapping for their metadata, or implement directories in pagecache, etc). Also, file data modifications usually go to the bdev via their own mappings. These updates are not coherent with buffercache IO (eg. via /dev/bdev) and never have been. However there could be a reasonable expectation that after a mount -oremount,ro operation then the buffercache should subsequently be coherent with previous filesystem modifications. So invalidate the bdev mappings on a remount,ro operation to provide a coherency point. The problem was exposed when we switched the old rd to brd because old rd didn't really function like a normal block device and updates to rd via mappings other than the buffercache would still end up going into its buffercache. But the same problem has always affected other "normal" block devices, including loop. [akpm@linux-foundation.org: repair comment layout] Reported-by: "Jorge Boncompte [DTI2]" <jorge@dti2.net> Tested-by: "Jorge Boncompte [DTI2]" <jorge@dti2.net> Signed-off-by: Nick Piggin <npiggin@suse.de> Cc: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2010-03-03fs/dcache.c: CodingStyle cleanupH Hartley Sweeten1-23/+22
Cleanup EXPORT* macros according to Documantation/CodingStyle. Move EXPORT* macros to the line immediately after the closing function brace. Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2010-03-03some clean up in fs/procHelight.Xu2-6/+5
EXPORT_SYMBOL(proc_symlink); EXPORT_SYMBOL(proc_mkdir); EXPORT_SYMBOL(create_proc_entry); EXPORT_SYMBOL(proc_create_data); EXPORT_SYMBOL(remove_proc_entry); Those EXPORT_SYMBOL shouldn't be in fs/proc/root.c, should be in fs/proc/generic.c. Signed-off-by: Helight.Xu <helight.xu@gmail.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2010-03-03libfs: Unexport and kill simple_prepare_writeBoaz Harrosh2-18/+6
Remove the EXPORT_UNUSED_SYMBOL of simple_prepare_write Collapse simple_prepare_write into it's only caller, though making it simpler and clearer to understand. Signed-off-by: Boaz Harrosh <bharrosh@panasas.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2010-03-03libfs: Open code simple_commit_write into only userBoaz Harrosh1-24/+35
* simple_commit_write was only called by simple_write_end. Open coding it makes it tiny bit less heavy on the arithmetic and much more readable. * While at it use zero_user() for clearing a partial page. * While at it add a docbook comment for simple_write_end. Signed-off-by: Boaz Harrosh <bharrosh@panasas.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2010-03-03Revert "autofs4: always use lookup for lookup"Al Viro4-330/+158
This reverts commit 213614d583748d00967a91cacd656f417efb36ce. Alas, ->d_revalidate() can't rely on ->lookup() finishing what it's started; if d_alloc() in do_lookup() fails, we are not going to call ->lookup() at all. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2010-02-24Linux 2.6.33v2.6.33Linus Torvalds1-1/+1
2010-02-24Merge branch 'urgent' of ↵Linus Torvalds1-2/+5
git://git.kernel.org/pub/scm/linux/kernel/git/kyle/parisc-2.6 * 'urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/kyle/parisc-2.6: parisc: Set PCI CLS early in boot.
2010-02-24Merge branch 'release' of ↵Linus Torvalds1-1/+1
git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6 * 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6: [IA64] Fix broken sn2 build
2010-02-24parisc: Set PCI CLS early in boot.Carlos O'Donell1-2/+5
Set the PCI CLS early in the boot process to prevent device failures. In pcibios_set_master use the new pci_cache_line_size instead of a hard-coded value. Signed-off-by: Carlos O'Donell <carlos@codesourcery.com> Reviewed-by: Grant Grundler <grundler@google.com> Signed-off-by: Kyle McMartin <kyle@redhat.com>
2010-02-24Merge branch 'for-linus' of git://git.monstr.eu/linux-2.6-microblazeLinus Torvalds2-20/+9
* 'for-linus' of git://git.monstr.eu/linux-2.6-microblaze: microblaze: Fix out_le32() macro microblaze: Fix cache loop function for cache range
2010-02-24Merge branch 'for-linus' of git://git.kernel.dk/linux-2.6-blockLinus Torvalds2-12/+3
* 'for-linus' of git://git.kernel.dk/linux-2.6-block: Revert "block: improve queue_should_plug() by looking at IO depths"
2010-02-24microblaze: Fix out_le32() macroSteven J. Magnani1-1/+1
Trailing semicolon causes compilation involving out_le32() to fail. Signed-off-by: Steven J. Magnani <steve@digidescorp.com> Signed-off-by: Michal Simek <monstr@monstr.eu>
2010-02-24microblaze: Fix cache loop function for cache rangeMichal Simek1-19/+8
I create wrong asm code but none test shows that this part of code is wrong. I am not convinces that were good idea to create asm optimized macros for caches. The reason is that there is not optimization with previous code that's why make sense to add old code and do some benchmarking which functions are faster. Signed-off-by: Michal Simek <monstr@monstr.eu>
2010-02-23Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6Linus Torvalds11-18/+57
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: net: bug fix for vlan + gro issue tc35815: Remove a wrong netif_wake_queue() call which triggers BUG_ON cdc_ether: new PID for Ericsson C3607w to the whitelist (resubmit) IPv6: better document max_addresses parameter MAINTAINERS: update mv643xx_eth maintenance status e1000: Fix DMA mapping error handling on RX iwlwifi: sanity check before counting number of tfds can be free iwlwifi: error checking for number of tfds in queue iwlwifi: set HT flags after channel in rxon
2010-02-23net: bug fix for vlan + gro issueAjit Khaparde1-1/+1
Traffic (tcp) doesnot start on a vlan interface when gro is enabled. Even the tcp handshake was not taking place. This is because, the eth_type_trans call before the netif_receive_skb in napi_gro_finish() resets the skb->dev to napi->dev from the previously set vlan netdev interface. This causes the ip_route_input to drop the incoming packet considering it as a packet coming from a martian source. I could repro this on 2.6.32.7 (stable) and 2.6.33-rc7. With this fix, the traffic starts and the test runs fine on both vlan and non-vlan interfaces. CC: Herbert Xu <herbert@gondor.apana.org.au> CC: Patrick McHardy <kaber@trash.net> Signed-off-by: Ajit Khaparde <ajitk@serverengines.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-02-23Merge branch 'release' of ↵Linus Torvalds3-14/+22
git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6 * 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6: ACPI: Be in TS_POLLING state during mwait based C-state entry ACPI: Fix regression where _PPC is not read at boot even when ignore_ppc=0 acer-wmi: Respect current backlight level when loading
2010-02-23Merge branch 'drm-linus' of ↵Linus Torvalds5-76/+210
git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6 * 'drm-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6: drm/vmwgfx: Fix queries if no dma buffer thrashing is occuring. drm/nv50: fix vram ptes on IGPs to point at stolen system memory drm/nv50: fix instmem binding on IGPs to point at stolen system memory drm/nv50: improve vram page table construction drm/nv50: more efficient clearing of gpu page table entries drm/nv50: make nv50_mem_vm_{bind,unbind} operate only on vram drm/nouveau: Fix up pre-nv17 analog load detection.
2010-02-23[IA64] Fix broken sn2 buildHedi Berriche1-1/+1
Revert the change made to arch/ia64/sn/kernel/setup.c by commit 204fba4aa303ea4a7bb726a539bf4a5b9e3203d0 as it breaks the build. Fixing the build the b94b08081fcecf83fa690d6c5664f6316fe72208 way breaks xpc because genksyms then fails to generate an CRC for per_cpu____sn_cnodeid_to_nasid because of limitations in the generic genksyms code. Signed-off-by: Hedi Berriche <hedi@sgi.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
2010-02-23Merge branch 'master' of ↵David S. Miller5-9/+27
git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-2.6
2010-02-23tc35815: Remove a wrong netif_wake_queue() call which triggers BUG_ONAtsushi Nemoto1-1/+0
The netif_wake_queue() is called correctly (i.e. only on !txfull condition) from txdone routine. So Unconditional call to the netif_wake_queue() here is wrong. This might cause calling of start_xmit routine on txfull state and trigger BUG_ON. This bug does not happen when NAPI disabled. After txdone there must be at least one free tx slot. But with NAPI, this is not true anymore and the BUG_ON can hits on heavy load. In this driver NAPI was enabled on 2.6.33-rc1 so this is regression from 2.6.32 kernel. Reported-by: Ralf Roesch <ralf.roesch@rw-gmbh.de> Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-02-23cdc_ether: new PID for Ericsson C3607w to the whitelist (resubmit)Torgny Johansson1-0/+5
This patch adds a new vid/pid to the cdc_ether whitelist. Device added: - Ericsson Mobile Broadband variant C3607w Signed-off-by: Torgny Johansson <torgny.johansson@gmail.com> -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Signed-off-by: David S. Miller <davem@davemloft.net>
2010-02-23IPv6: better document max_addresses parameterBrian Haley1-4/+4
Andrew Morton wrote: >> >From ip-sysctl.txt file in kernel documentation I can see following description >> for max_addresses: >> max_addresses - INTEGER >> Number of maximum addresses per interface. 0 disables limitation. >> It is recommended not set too large value (or 0) because it would >> be too easy way to crash kernel to allow to create too much of >> autoconfigured addresses. ^^^^^^^^^^^^^^ >> If this parameter applies only for auto-configured IP addressed, please state >> it more clearly in docs or rename the parameter to show that it refers to >> auto-configuration. It did mention autoconfigured in the text, but the below makes it more obvious. More clearly document IPv6 max_addresses parameter. Signed-off-by: Brian Haley <brian.haley@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-02-23MAINTAINERS: update mv643xx_eth maintenance statusLennert Buytenhek1-2/+2
I am no longer with Marvell. Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-02-23e1000: Fix DMA mapping error handling on RXAnton Blanchard1-1/+18
Check for error return from pci_map_single/pci_map_page and clean up. With this and the previous patch the driver was able to handle a significant percentage of errors (I set the fault injection rate to 10% and could still download large files at a reasonable speed). Signed-off-by: Anton Blanchard <anton@samba.org> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-02-23Revert "block: improve queue_should_plug() by looking at IO depths"Jens Axboe2-12/+3
This reverts commit fb1e75389bd06fd5987e9cda1b4e0305c782f854. "Benjamin S." <sbenni@gmx.de> reports that the patch in question causes a big drop in sequential throughput for him, dropping from 200MB/sec down to only 70MB/sec. Needs to be investigated more fully, for now lets just revert the offending commit. Conflicts: include/linux/blkdev.h Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2010-02-23drm/vmwgfx: Fix queries if no dma buffer thrashing is occuring.Thomas Hellstrom1-16/+92
Intercept query commands and apply relocations to their guest pointers. Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
2010-02-23Merge remote branch 'nouveau/for-airlied' of ../drm-nouveau-next into drm-linusDave Airlie4-60/+118
* 'nouveau/for-airlied' of ../drm-nouveau-next: drm/nv50: fix vram ptes on IGPs to point at stolen system memory drm/nv50: fix instmem binding on IGPs to point at stolen system memory drm/nv50: improve vram page table construction drm/nv50: more efficient clearing of gpu page table entries drm/nv50: make nv50_mem_vm_{bind,unbind} operate only on vram drm/nouveau: Fix up pre-nv17 analog load detection.
2010-02-23Merge branch 'pcc' into releaseLen Brown1-1/+5
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