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2011-01-12inet6: prevent network storms caused by linux IPv6 routersAlexey Kuznetsov
Linux IPv6 forwards unicast packets, which are link layer multicasts... The hole was present since day one. I was 100% this check is there, but it is not. The problem shows itself, f.e. when Microsoft Network Load Balancer runs on a network. This software resolves IPv6 unicast addresses to multicast MAC addresses. Signed-off-by: Alexey Kuznetsov <kuznet@ms2.inr.ac.ru> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-01-12netdev: bfin_mac: Use is_multicast_ether_addr helperTobias Klauser
Signed-off-by: Tobias Klauser <tklauser@distanz.ch> Acked-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-01-12netdev: ucc_geth: Use is_multicast_ether_addr helperTobias Klauser
Signed-off-by: Tobias Klauser <tklauser@distanz.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-01-12fs: add documentation on fallocate hole punchingJosef Bacik
This patch simply adds documentation on how to handle the hole punching mode of fallocate for any filesystem wishing to use it. Signed-off-by: Josef Bacik <josef@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2011-01-12Gfs2: fail if we try to use hole punchJosef Bacik
Gfs2 doesn't have the ability to punch holes yet, so make sure we return EOPNOTSUPP if we try to use hole punching through fallocate. This support can be added later. Thanks, Signed-off-by: Josef Bacik <josef@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2011-01-12Btrfs: fail if we try to use hole punchJosef Bacik
Btrfs doesn't have the ability to punch holes yet, so make sure we return EOPNOTSUPP if we try to use hole punching through fallocate. This support can be added later. Thanks, Signed-off-by: Josef Bacik <josef@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2011-01-12Ext4: fail if we try to use hole punchJosef Bacik
Ext4 doesn't have the ability to punch holes yet, so make sure we return EOPNOTSUPP if we try to use hole punching through fallocate. This support can be added later. Thanks, Acked-by: Jan Kara <jack@suse.cz> Signed-off-by: Josef Bacik <josef@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2011-01-12Ocfs2: handle hole punching via fallocate properlyJosef Bacik
This patch just makes ocfs2 use its UNRESERVP ioctl when we get the hole punch flag in fallocate. I didn't test it, but it seems simple enough. Thanks, Acked-by: Jan Kara <jack@suse.cz> Acked-by: Joel Becker <joel.becker@oracle.com> Signed-off-by: Josef Bacik <josef@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2011-01-12XFS: handle hole punching via fallocate properlyJosef Bacik
This patch simply allows XFS to handle the hole punching flag in fallocate properly. I've tested this with a little program that does a bunch of random hole punching with FL_KEEP_SIZE and without it to make sure it does the right thing. Thanks, Signed-off-by: Josef Bacik <josef@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2011-01-12fs: add hole punching to fallocateJosef Bacik
Hole punching has already been implemented by XFS and OCFS2, and has the potential to be implemented on both BTRFS and EXT4 so we need a generic way to get to this feature. The simplest way in my mind is to add FALLOC_FL_PUNCH_HOLE to fallocate() since it already looks like the normal fallocate() operation. I've tested this patch with XFS and BTRFS to make sure XFS did what it's supposed to do and that BTRFS failed like it was supposed to. Thank you, Signed-off-by: Josef Bacik <josef@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2011-01-12vfs: pass struct file to do_truncate on O_TRUNC opens (try #2)Jeff Layton
When a file is opened with O_TRUNC, the truncate processing is handled by handle_truncate(). This function however doesn't receive any info about the newly instantiated filp, and therefore can't pass that info along so that the setattr can use it. This makes NFSv4 misbehave. The client does an open and gets a valid stateid, and then doesn't use that stateid on the subsequent truncate. It uses the zero-stateid instead. Most servers ignore this fact and just do the truncate anyway, but some don't like it (notably, RHEL4). It seems more correct that since we have a fully instantiated file at the time that handle_truncate is called, that we pass that along so that the truncate operation can properly use it. Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2011-01-12fix signedness mess in rw_verify_area() on 64bit architecturesAl Viro
... and clean the unsigned-f_pos code, while we are at it. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2011-01-12fs: fix kernel-doc for dcache::prepend_pathRandy Dunlap
Fix function kernel-doc warning for prepend_path(): Warning(fs/dcache.c:1924): missing initial short description on line: Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Cc: Alexander Viro <viro@zeniv.linux.org.uk> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2011-01-12fs: fix kernel-doc for dcache::d_validateRandy Dunlap
Fix function parameter kernel-doc for d_validate(): Warning(fs/dcache.c:1495): No description found for parameter 'parent' Warning(fs/dcache.c:1495): Excess function parameter 'dparent' description in 'd_validate' Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Cc: Alexander Viro <viro@zeniv.linux.org.uk> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2011-01-12sanitize ecryptfs ->mount()Al Viro
kill ecryptfs_read_super(), reorder code allowing to use normal d_alloc_root() instead of opencoding it. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2011-01-12switch afsAl Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2011-01-12move internal-only parts of ncpfs headers to fs/ncpfsAl Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2011-01-12switch ncpfsAl Viro
merge dentry_operations for root and non-root Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2011-01-12switch 9pAl Viro
here we actually *want* ->d_op for root; setting it allows to get rid of kludge in v9fs_kill_super() since now we have proper ->d_release() for root and don't need to call it manually. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2011-01-12pass default dentry_operations to mount_pseudo()Al Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2011-01-12switch hostfsAl Viro
->d_delete() doesn't matter for s_root anyway Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2011-01-12switch affsAl Viro
either d_op instance would work for root, actually... Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2011-01-12switch configfsAl Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2011-01-12take coda-private headers out of include/linuxAl Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2011-01-12switch codaAl Viro
Coda ->d_revalidate() actually checks for root, ->d_delete() is irrelevant. So we can use the same d_op for all coda dentries Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2011-01-12convert smbfsAl Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2011-01-12switch hpfsAl Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2011-01-12switch cgroupAl Viro
switching it to s_d_op allows to kill the cgroup_lookup() kludge. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2011-01-12switch btrfs, close racesAl Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2011-01-12switch ocfs2, close racesAl Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2011-01-12switch gfs2, close racesAl Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2011-01-12switch cifsAl Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2011-01-12switch nfs to ->s_d_opAl Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2011-01-12switch adfsAl Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2011-01-12switch hfsplusAl Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2011-01-12switch hfsAl Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2011-01-12minixfs: kill dead codeAl Viro
->d_op of root stays NULL these days on minixfs Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2011-01-12switch sysvAl Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2011-01-12switch fuseAl Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2011-01-12pohmelfs: double-free and leakAl Viro
wrong dentry dropped... Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2011-01-12switch jfs to ->s_d_op, close exportfs racesAl Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2011-01-12switch fat to ->s_d_op, close exportfs races thereAl Viro
don't bother with lock_super() in fat_fill_super() callers, while we are at it - there won't be any concurrency anyway. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2011-01-12fix isofs d_op handlingAl Viro
switch to ->s_d_op; d_obtain_alias() will DTRT now Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2011-01-12per-superblock default ->d_opAl Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2011-01-12powerpc: fix warning when compiling immap_qe.hTimur Tabi
Fix the warnings genereted by arch/powerpc/include/asm/immap_qe.h when CONFIG_PHYS_ADDR_T_64BIT is defined: immap_qe.h: In function 'immrbar_virt_to_phys': immap_qe.h:472:8: warning: cast from pointer to integer of different size immap_qe.h:472:24: warning: cast from pointer to integer of different size immap_qe.h:473:5: warning: cast from pointer to integer of different size immap_qe.h:473:21: warning: cast from pointer to integer of different size immap_qe.h:474:36: warning: cast from pointer to integer of different size Note that the QE does not support 36-bit physical addresses, so even when CONFIG_PHYS_ADDR_T_64BIT is defined, the QE MURAM must be located below the 4GB boundary. Signed-off-by: Timur Tabi <timur@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2011-01-12powerpc/85xx: fix compatible properties of the P1022DS DMA nodes used for audioTimur Tabi
In order to prevent the fsl_dma driver from claiming the DMA channels that the P1022DS audio driver needs, the compatible properties for those nodes must say "fsl,ssi-dma-channel" instead of "fsl,eloplus-dma-channel". Signed-off-by: Timur Tabi <timur@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2011-01-12powerpc/mpc8308: fix USB DR controller initializationIlya Yanok
MPC8308 has ULPI pin muxing settings in SICRH register, bits 17-18 which is different from both MPC8313 and MPC8315. Also MPC8308 doesn't have REFSEL, UTMI_PHY_EN and OTG_PORT fields in the USB DR controller CONTROL register. Signed-off-by: Ilya Yanok <yanok@emcraft.com> Tested-by: Wolfgang Denk <wd@denx.de> Acked-by: Wolfgang Denk <wd@denx.de> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2011-01-12powerpc/fsl_rio: Fix non-standard HID1 register accessShaohui Xie
Moved setting of RFXE bit so we get machine checks on RIO errors into cpu_setup so that the RIO code isn't core specific. Signed-off-by: Shaohui Xie <b21989@freescale.com> Cc: Li Yang <leoli@freescale.com> Cc: Roy Zang <tie-fei.zang@freescale.com> Cc: Alexandre Bounine <alexandre.bounine@idt.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2011-01-12powerpc/85xx: add e500 HID1 bit definitionLi Yang
Also make 74xx HID1 definition conditional. Signed-off-by: Li Yang <leoli@freescale.com> Signed-off-by: Shaohui Xie <b21989@freescale.com> Cc: Roy Zang <tie-fei.zang@freescale.com> Cc: Alexandre Bounine <alexandre.bounine@idt.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2011-01-12rbd: fix cleanup when trying to mount inexistent imageYehuda Sadeh
Previously we didn't clean up the sysfs entry that was just created. Signed-off-by: Yehuda Sadeh <yehuda@hq.newdream.net> Signed-off-by: Sage Weil <sage@newdream.net>
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