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* fs: remove generic_aclChristoph Hellwig2014-01-267-238/+69
| | | | | | | | And instead convert tmpfs to use the new generic ACL code, with two stub methods provided for in-memory filesystems. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* nfs: use generic posix ACL infrastructure for v3 Posix ACLsChristoph Hellwig2014-01-266-281/+121
| | | | | | | | | This causes a small behaviour change in that we don't bother to set ACLs on file creation if the mode bit can express the access permissions fully, and thus behaving identical to local filesystems. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* gfs2: use generic posix ACL infrastructureChristoph Hellwig2014-01-254-214/+62
| | | | | | | | | This contains some major refactoring for the create path so that inodes are created with the right mode to start with instead of fixing it up later. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* jfs: use generic posix ACL infrastructureChristoph Hellwig2014-01-257-140/+89
| | | | | | | | | Copy the scheme I introduced to btrfs many years ago to only use the xattr handler for ACLs, but pass plain attrs straight through. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Dave Kleikamp <dave.kleikamp@oracle.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* xfs: use generic posix ACL infrastructureChristoph Hellwig2014-01-255-171/+36
| | | | | | | | | | Also don't bother to set up a .get_acl method for symlinks as we do not support access control (ACLs or even mode bits) for symlinks in Linux, and create inodes with the proper mode instead of fixing it up later. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Dave Chinner <dchinner@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* reiserfs: use generic posix ACL infrastructureChristoph Hellwig2014-01-255-161/+35
| | | | | | | | | Also don't bother to set up a .get_acl method for symlinks as we do not support access control (ACLs or even mode bits) for symlinks in Linux. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Jan Kara <jack@suse.cz> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* ocfs2: use generic posix ACL infrastructureChristoph Hellwig2014-01-257-250/+72
| | | | | | | | | This contains some major refactoring for the create path so that inodes are created with the right mode to start with instead of fixing it up later. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* jffs2: use generic posix ACL infrastructureChristoph Hellwig2014-01-257-143/+24
| | | | | | | | Also don't bother to set up a .get_acl method for symlinks as we do not support access control (ACLs or even mode bits) for symlinks in Linux. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* hfsplus: use generic posix ACL infrastructureChristoph Hellwig2014-01-256-162/+26
| | | | | | Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Vyacheslav Dubeyko <slava@dubeyko.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* f2fs: use generic posix ACL infrastructureChristoph Hellwig2014-01-257-170/+31
| | | | | | | | | f2fs has some weird mode bit handling, so still using the old chmod code for now. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Jaegeuk Kim <jaegeuk.kim@samsung.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* ext2/3/4: use generic posix ACL infrastructureChristoph Hellwig2014-01-2521-605/+100
| | | | | | Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Jan Kara <jack@suse.cz> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* btrfs: use generic posix ACL infrastructureChristoph Hellwig2014-01-255-135/+28
| | | | | | | | Also don't bother to set up a .get_acl method for symlinks as we do not support access control (ACLs or even mode bits) for symlinks in Linux. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* fs: make posix_acl_create more usefulChristoph Hellwig2014-01-2517-23/+81
| | | | | | | | | | Rename the current posix_acl_created to __posix_acl_create and add a fully featured helper to set up the ACLs on file creation that uses get_acl(). Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Jan Kara <jack@suse.cz> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* fs: make posix_acl_chmod more usefulChristoph Hellwig2014-01-2516-21/+54
| | | | | | | | | | Rename the current posix_acl_chmod to __posix_acl_chmod and add a fully featured ACL chmod helper that uses the ->set_acl inode operation. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Jan Kara <jack@suse.cz> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* fs: add generic xattr_acl handlersChristoph Hellwig2014-01-252-0/+105
| | | | | | | | | | With the ->set_acl inode operation we can implement the Posix ACL xattr handlers in generic code instead of duplicating them all over the tree. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Jan Kara <jack@suse.cz> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* fs: add a set_acl inode operationChristoph Hellwig2014-01-251-0/+1
| | | | | | | | | This will allow moving all the Posix ACL handling into the VFS and clean up tons of cruft in the filesystems. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Jan Kara <jack@suse.cz> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* fs: add get_acl helperChristoph Hellwig2014-01-253-21/+32
| | | | | | | | | Factor out the code to get an ACL either from the inode or disk from check_acl, so that it can be used elsewhere later on. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Jan Kara <jack@suse.cz> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* fs: merge xattr_acl.c into posix_acl.cChristoph Hellwig2014-01-253-188/+174
| | | | | Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* reiserfs: prefix ACL symbols with reiserfs_Christoph Hellwig2014-01-251-10/+10
| | | | | | Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Jan Kara <jack@suse.cz> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* befs: iget_locked() doesn't return an ERR_PTRRakesh Pandit2014-01-251-2/+2
| | | | | | | Also fix befs_iget return value if iget_locked fails. Signed-off-by: Rakesh Pandit <rakesh@tuxera.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* fs: __fget_light() can use __fget() in slow pathOleg Nesterov2014-01-251-11/+3
| | | | | | | | The slow path in __fget_light() can use __fget() to avoid the code duplication. Saves 232 bytes. Signed-off-by: Oleg Nesterov <oleg@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* fs: factor out common code in fget_light() and fget_raw_light()Oleg Nesterov2014-01-251-24/+9
| | | | | | | | | Apart from FMODE_PATH check fget_light() and fget_raw_light() are identical, shift the code into the new helper, __fget_light(fd, mask). Saves 208 bytes. Signed-off-by: Oleg Nesterov <oleg@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* fs: factor out common code in fget() and fget_raw()Oleg Nesterov2014-01-251-17/+8
| | | | | | | | | Apart from FMODE_PATH check fget() and fget_raw() are identical, shift the code into the new simple helper, __fget(fd, mask). Saves 160 bytes. Signed-off-by: Oleg Nesterov <oleg@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* change close_files() to use rcu_dereference_raw(files->fdt)Oleg Nesterov2014-01-251-17/+9
| | | | | | | | | | | | | | | | | | | | | put_files_struct() and close_files() do rcu_read_lock() to make rcu_dereference_check_fdtable() happy. This looks a bit ugly, files_fdtable() just reads the pointer, we can simply use rcu_dereference_raw() to avoid the warning. The patch also changes close_files() to return fdt, this avoids another rcu_read_lock()/files_fdtable() in put_files_struct(). I think close_files() needs more cleanups: - we do not need xchg() exactly because we are the last user of this files_struct - "if (file)" should be turned into WARN_ON(!file) Signed-off-by: Oleg Nesterov <oleg@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* introduce __fcheck_files() to fix rcu_dereference_check_fdtable(), kill ↵Oleg Nesterov2014-01-254-29/+23
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | rcu_my_thread_group_empty() rcu_dereference_check_fdtable() looks very wrong, 1. rcu_my_thread_group_empty() was added by 844b9a8707f1 "vfs: fix RCU-lockdep false positive due to /proc" but it doesn't really fix the problem. A CLONE_THREAD (without CLONE_FILES) task can hit the same race with get_files_struct(). And otoh rcu_my_thread_group_empty() can suppress the correct warning if the caller is the CLONE_FILES (without CLONE_THREAD) task. 2. files->count == 1 check is not really right too. Even if this files_struct is not shared it is not safe to access it lockless unless the caller is the owner. Otoh, this check is sub-optimal. files->count == 0 always means it is safe to use it lockless even if files != current->files, but put_files_struct() has to take rcu_read_lock(). See the next patch. This patch removes the buggy checks and turns fcheck_files() into __fcheck_files() which uses rcu_dereference_raw(), the "unshared" callers, fget_light() and fget_raw_light(), can use it to avoid the warning from RCU-lockdep. fcheck_files() is trivially reimplemented as rcu_lockdep_assert() plus __fcheck_files(). Signed-off-by: Oleg Nesterov <oleg@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* kill reiserfs_bdevname()Al Viro2014-01-253-14/+6
| | | | | | it's never called with NULL argument... Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* afs: get rid of junk in fs/afs/proc.cAl Viro2014-01-252-101/+22
| | | | | | | | kill pointless method instances and don't bother with ->owner - it's ignored for procfs files anyway, make use of remove_proc_subtree() for removal, get rid of cell->proc_dir. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* nls: have register_nls() set ->ownerAl Viro2014-01-2553-54/+5
| | | | | | | pass owner explicitly to __register_nls(), make register_nls() a macro passing THIS_MODULE as the owner argument to __register_nls(). Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* eventfd_ctx_fdget(): use fdget() instead of fget()Al Viro2014-01-251-8/+5
| | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* btrfs: sanitize BTRFS_IOC_FILE_EXTENT_SAMEAl Viro2014-01-251-46/+24
| | | | | | | | | | | * don't assume that ->dest_count won't change between copy_from_user() and memdup_user() * use fdget instead of fget * don't bother comparing superblocks when we'd already compared vfsmounts * get rid of excessive goto * use file_inode() instead of open-coding the sucker Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* qnx4: clean qnx4_fill_super() upAl Viro2014-01-252-43/+22
| | | | | | | | | * pass on-disk superblock to qnx4_chkroot() explicitly * don't leave stale (and unused) pointers in qnx4_super_block * free stuff in ->kill_sb(); ->put_super() becomes empty and dies * simplify failure exits Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* efs: get rid of ->put_super()Al Viro2014-01-251-24/+15
| | | | | | simplifies failure exits in ->mount()... Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* cramfs: take headers to fs/cramfsAl Viro2014-01-257-35/+23
| | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* cramfs: get rid of ->put_super()Al Viro2014-01-251-16/+12
| | | | | | failure exits are simpler that way Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* affs: use ->kill_sb() to simplify ->put_super() and failure exits of ->mount()Al Viro2014-01-251-32/+25
| | | | | | ... and return saner errors from ->mount(), while we are at it Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* xfs: switch to kfree_put_link()Al Viro2014-01-251-13/+1
| | | | | | don't bother open-coding it... Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* ecryptfs: fix failure handling in ->readlink()Al Viro2014-01-251-16/+13
| | | | | | | | | | If ecryptfs_readlink_lower() fails, buf remains an uninitialized pointer and passing it nd_set_link() won't do anything good. Fixed by switching ecryptfs_readlink_lower() to saner API - make it return buf or ERR_PTR(...) and update callers. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* Linux 3.13v3.13Linus Torvalds2014-01-191-1/+1
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* drm/nouveau/mxm: fix null deref on loadIlia Mirkin2014-01-191-2/+2
| | | | | | | | | | | | | | | | Since commit 61b365a505d6 ("drm/nouveau: populate master subdev pointer only when fully constructed"), the nouveau_mxm(bios) call will return NULL, since it's still being called from the constructor. Instead, pass the mxm pointer via the unused data field. See https://bugs.freedesktop.org/show_bug.cgi?id=73791 Reported-by: Andreas Reis <andreas.reis@gmail.com> Tested-by: Andreas Reis <andreas.reis@gmail.com> Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu> Cc: Ben Skeggs <bskeggs@redhat.com> Cc: Dave Airlie <airlied@linux.ie> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Merge tag 'acpi-3.13-fixup' of ↵Linus Torvalds2014-01-192-2/+0
|\ | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull last-minute ACPI fix from Rafael Wysocki: "This reverts a commit that causes the Alan Cox' ASUS T100TA to "crash and burn" during boot if the Baytrail pinctrl driver is compiled in" * tag 'acpi-3.13-fixup' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: Revert "ACPI: Add BayTrail SoC GPIO and LPSS ACPI IDs"
| * Revert "ACPI: Add BayTrail SoC GPIO and LPSS ACPI IDs"Rafael J. Wysocki2014-01-182-2/+0
| | | | | | | | | | | | | | | | | | | | | | This reverts commit f6308b36c411 (ACPI: Add BayTrail SoC GPIO and LPSS ACPI IDs), because it causes the Alan Cox' ASUS T100TA to "crash and burn" during boot if the Baytrail pinctrl driver is compiled in. Fixes: f6308b36c411 (ACPI: Add BayTrail SoC GPIO and LPSS ACPI IDs) Reported-by: One Thousand Gnomes <gnomes@lxorguk.ukuu.org.uk> Requested-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
* | Merge branch 'perf-urgent-for-linus' of ↵Linus Torvalds2014-01-192-8/+63
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull perf fixes from Ingo Molnar: - an s2ram related fix on AMD systems - a perf fault handling bug that is relatively old but which has become much easier to trigger in v3.13 after commit e00b12e64be9 ("perf/x86: Further optimize copy_from_user_nmi()") * 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: perf/x86/amd/ibs: Fix waking up from S3 for AMD family 10h x86, mm, perf: Allow recursive faults from interrupts
| * | perf/x86/amd/ibs: Fix waking up from S3 for AMD family 10hRobert Richter2014-01-161-8/+45
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | On AMD family 10h we see following error messages while waking up from S3 for all non-boot CPUs leading to a failed IBS initialization: Enabling non-boot CPUs ... smpboot: Booting Node 0 Processor 1 APIC 0x1 [Firmware Bug]: cpu 1, try to use APIC500 (LVT offset 0) for vector 0x400, but the register is already in use for vector 0xf9 on another cpu perf: IBS APIC setup failed on cpu #1 process: Switch to broadcast mode on CPU1 CPU1 is up ... ACPI: Waking up from system sleep state S3 Reason for this is that during suspend the LVT offset for the IBS vector gets lost and needs to be reinialized while resuming. The offset is read from the IBSCTL msr. On family 10h the offset needs to be 1 as offset 0 is used for the MCE threshold interrupt, but firmware assings it for IBS to 0 too. The kernel needs to reprogram the vector. The msr is a readonly node msr, but a new value can be written via pci config space access. The reinitialization is implemented for family 10h in setup_ibs_ctl() which is forced during IBS setup. This patch fixes IBS setup after waking up from S3 by adding resume/supend hooks for the boot cpu which does the offset reinitialization. Marking it as stable to let distros pick up this fix. Signed-off-by: Robert Richter <rric@kernel.org> Signed-off-by: Peter Zijlstra <peterz@infradead.org> Cc: <stable@vger.kernel.org> v3.2.. Cc: Linus Torvalds <torvalds@linux-foundation.org> Link: http://lkml.kernel.org/r/1389797849-5565-1-git-send-email-rric.net@gmail.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
| * | x86, mm, perf: Allow recursive faults from interruptsPeter Zijlstra2014-01-161-0/+18
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Waiman managed to trigger a PMI while in a emulate_vsyscall() fault, the PMI in turn managed to trigger a fault while obtaining a stack trace. This triggered the sig_on_uaccess_error recursive fault logic and killed the process dead. Fix this by explicitly excluding interrupts from the recursive fault logic. Reported-and-Tested-by: Waiman Long <waiman.long@hp.com> Fixes: e00b12e64be9 ("perf/x86: Further optimize copy_from_user_nmi()") Cc: Aswin Chandramouleeswaran <aswin@hp.com> Cc: Scott J Norton <scott.norton@hp.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Andy Lutomirski <luto@amacapital.net> Cc: Arnaldo Carvalho de Melo <acme@ghostprotocols.net> Cc: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/20140110200603.GJ7572@laptop.programming.kicks-ass.net Signed-off-by: Ingo Molnar <mingo@kernel.org>
* | | Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netLinus Torvalds2014-01-1725-130/+169
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull networking fixes from David Miller: 1) The value choosen for the new SO_MAX_PACING_RATE socket option on parisc was very poorly choosen, let's fix it while we still can. From Eric Dumazet. 2) Our generic reciprocal divide was found to handle some edge cases incorrectly, part of this is encoded into the BPF as deep as the JIT engines themselves. Just use a real divide throughout for now. From Eric Dumazet. 3) Because the initial lookup is lockless, the TCP metrics engine can end up creating two entries for the same lookup key. Fix this by doing a second lookup under the lock before we actually create the new entry. From Christoph Paasch. 4) Fix scatter-gather list init in usbnet driver, from Bjørn Mork. 5) Fix unintended 32-bit truncation in cxgb4 driver's bit shifting. From Dan Carpenter. 6) Netlink socket dumping uses the wrong socket state for timewait sockets. Fix from Neal Cardwell. 7) Fix netlink memory leak in ieee802154_add_iface(), from Christian Engelmayer. 8) Multicast forwarding in ipv4 can overflow the per-rule reference counts, causing all multicast traffic to cease. Fix from Hannes Frederic Sowa. 9) via-rhine needs to stop all TX queues when it resets the device, from Richard Weinberger. 10) Fix RDS per-cpu accesses broken by the this_cpu_* conversions. From Gerald Schaefer. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: s390/bpf,jit: fix 32 bit divisions, use unsigned divide instructions parisc: fix SO_MAX_PACING_RATE typo ipv6: simplify detection of first operational link-local address on interface tcp: metrics: Avoid duplicate entries with the same destination-IP net: rds: fix per-cpu helper usage e1000e: Fix compilation warning when !CONFIG_PM_SLEEP bpf: do not use reciprocal divide be2net: add dma_mapping_error() check for dma_map_page() bnx2x: Don't release PCI bars on shutdown net,via-rhine: Fix tx_timeout handling batman-adv: fix batman-adv header overhead calculation qlge: Fix vlan netdev features. net: avoid reference counter overflows on fib_rules in multicast forwarding dm9601: add USB IDs for new dm96xx variants MAINTAINERS: add virtio-dev ML for virtio ieee802154: Fix memory leak in ieee802154_add_iface() net: usbnet: fix SG initialisation inet_diag: fix inet_diag_dump_icsk() to use correct state for timewait sockets cxgb4: silence shift wrapping static checker warning
| * | | s390/bpf,jit: fix 32 bit divisions, use unsigned divide instructionsHeiko Carstens2014-01-171-8/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The s390 bpf jit compiler emits the signed divide instructions "dr" and "d" for unsigned divisions. This can cause problems: the dividend will be zero extended to a 64 bit value and the divisor is the 32 bit signed value as specified A or X accumulator, even though A and X are supposed to be treated as unsigned values. The divide instrunctions will generate an exception if the result cannot be expressed with a 32 bit signed value. This is the case if e.g. the dividend is 0xffffffff and the divisor either 1 or also 0xffffffff (signed: -1). To avoid all these issues simply use unsigned divide instructions. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | parisc: fix SO_MAX_PACING_RATE typoEric Dumazet2014-01-171-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | SO_MAX_PACING_RATE definition on parisc got a typo. Its not too late to fix it, before 3.13 is official. Fixes: 62748f32d501 ("net: introduce SO_MAX_PACING_RATE") Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | ipv6: simplify detection of first operational link-local address on interfaceHannes Frederic Sowa2014-01-172-22/+17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In commit 1ec047eb4751e3 ("ipv6: introduce per-interface counter for dad-completed ipv6 addresses") I build the detection of the first operational link-local address much to complex. Additionally this code now has a race condition. Replace it with a much simpler variant, which just scans the address list when duplicate address detection completes, to check if this is the first valid link local address and send RS and MLD reports then. Fixes: 1ec047eb4751e3 ("ipv6: introduce per-interface counter for dad-completed ipv6 addresses") Reported-by: Jiri Pirko <jiri@resnulli.us> Cc: Flavio Leitner <fbl@redhat.com> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Acked-by: Flavio Leitner <fbl@redhat.com> Acked-by: Jiri Pirko <jiri@resnulli.us> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | tcp: metrics: Avoid duplicate entries with the same destination-IPChristoph Paasch2014-01-171-19/+32
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Because the tcp-metrics is an RCU-list, it may be that two soft-interrupts are inside __tcp_get_metrics() for the same destination-IP at the same time. If this destination-IP is not yet part of the tcp-metrics, both soft-interrupts will end up in tcpm_new and create a new entry for this IP. So, we will have two tcp-metrics with the same destination-IP in the list. This patch checks twice __tcp_get_metrics(). First without holding the lock, then while holding the lock. The second one is there to confirm that the entry has not been added by another soft-irq while waiting for the spin-lock. Fixes: 51c5d0c4b169b (tcp: Maintain dynamic metrics in local cache.) Signed-off-by: Christoph Paasch <christoph.paasch@uclouvain.be> Reviewed-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | net: rds: fix per-cpu helper usageGerald Schaefer2014-01-171-4/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | commit ae4b46e9d "net: rds: use this_cpu_* per-cpu helper" broke per-cpu handling for rds. chpfirst is the result of __this_cpu_read(), so it is an absolute pointer and not __percpu. Therefore, __this_cpu_write() should not operate on chpfirst, but rather on cache->percpu->first, just like __this_cpu_read() did before. Cc: <stable@vger.kernel.org> # 3.8+ Signed-off-byd Gerald Schaefer <gerald.schaefer@de.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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