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2010-10-26Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6 * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6: (52 commits) split invalidate_inodes() fs: skip I_FREEING inodes in writeback_sb_inodes fs: fold invalidate_list into invalidate_inodes fs: do not drop inode_lock in dispose_list fs: inode split IO and LRU lists fs: switch bdev inode bdi's correctly fs: fix buffer invalidation in invalidate_list fsnotify: use dget_parent smbfs: use dget_parent exportfs: use dget_parent fs: use RCU read side protection in d_validate fs: clean up dentry lru modification fs: split __shrink_dcache_sb fs: improve DCACHE_REFERENCED usage fs: use percpu counter for nr_dentry and nr_dentry_unused fs: simplify __d_free fs: take dcache_lock inside __d_path fs: do not assign default i_ino in new_inode fs: introduce a per-cpu last_ino allocator new helper: ihold() ...
2010-10-26fs: allow for more than 2^31 filesEric Dumazet
Robin Holt tried to boot a 16TB system and found af_unix was overflowing a 32bit value : <quote> We were seeing a failure which prevented boot. The kernel was incapable of creating either a named pipe or unix domain socket. This comes down to a common kernel function called unix_create1() which does: atomic_inc(&unix_nr_socks); if (atomic_read(&unix_nr_socks) > 2 * get_max_files()) goto out; The function get_max_files() is a simple return of files_stat.max_files. files_stat.max_files is a signed integer and is computed in fs/file_table.c's files_init(). n = (mempages * (PAGE_SIZE / 1024)) / 10; files_stat.max_files = n; In our case, mempages (total_ram_pages) is approx 3,758,096,384 (0xe0000000). That leaves max_files at approximately 1,503,238,553. This causes 2 * get_max_files() to integer overflow. </quote> Fix is to let /proc/sys/fs/file-nr & /proc/sys/fs/file-max use long integers, and change af_unix to use an atomic_long_t instead of atomic_t. get_max_files() is changed to return an unsigned long. get_nr_files() is changed to return a long. unix_nr_socks is changed from atomic_t to atomic_long_t, while not strictly needed to address Robin problem. Before patch (on a 64bit kernel) : # echo 2147483648 >/proc/sys/fs/file-max # cat /proc/sys/fs/file-max -18446744071562067968 After patch: # echo 2147483648 >/proc/sys/fs/file-max # cat /proc/sys/fs/file-max 2147483648 # cat /proc/sys/fs/file-nr 704 0 2147483648 Reported-by: Robin Holt <holt@sgi.com> Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Acked-by: David Miller <davem@davemloft.net> Reviewed-by: Robin Holt <holt@sgi.com> Tested-by: Robin Holt <holt@sgi.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Christoph Hellwig <hch@lst.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-10-26Merge branch 'for-2.6.37' of git://linux-nfs.org/~bfields/linuxLinus Torvalds
* 'for-2.6.37' of git://linux-nfs.org/~bfields/linux: (99 commits) svcrpc: svc_tcp_sendto XPT_DEAD check is redundant svcrpc: no need for XPT_DEAD check in svc_xprt_enqueue svcrpc: assume svc_delete_xprt() called only once svcrpc: never clear XPT_BUSY on dead xprt nfsd4: fix connection allocation in sequence() nfsd4: only require krb5 principal for NFSv4.0 callbacks nfsd4: move minorversion to client nfsd4: delay session removal till free_client nfsd4: separate callback change and callback probe nfsd4: callback program number is per-session nfsd4: track backchannel connections nfsd4: confirm only on succesful create_session nfsd4: make backchannel sequence number per-session nfsd4: use client pointer to backchannel session nfsd4: move callback setup into session init code nfsd4: don't cache seq_misordered replies SUNRPC: Properly initialize sock_xprt.srcaddr in all cases SUNRPC: Use conventional switch statement when reclassifying sockets sunrpc/xprtrdma: clean up workqueue usage sunrpc: Turn list_for_each-s into the ..._entry-s ... Fix up trivial conflicts (two different deprecation notices added in separate branches) in Documentation/feature-removal-schedule.txt
2010-10-26Merge branch 'nfs-for-2.6.37' of ↵Linus Torvalds
git://git.linux-nfs.org/projects/trondmy/nfs-2.6 * 'nfs-for-2.6.37' of git://git.linux-nfs.org/projects/trondmy/nfs-2.6: net/sunrpc: Use static const char arrays nfs4: fix channel attribute sanity-checks NFSv4.1: Use more sensible names for 'initialize_mountpoint' NFSv4.1: pnfs: filelayout: add driver's LAYOUTGET and GETDEVICEINFO infrastructure NFSv4.1: pnfs: add LAYOUTGET and GETDEVICEINFO infrastructure NFS: client needs to maintain list of inodes with active layouts NFS: create and destroy inode's layout cache NFSv4.1: pnfs: filelayout: introduce minimal file layout driver NFSv4.1: pnfs: full mount/umount infrastructure NFS: set layout driver NFS: ask for layouttypes during v4 fsinfo call NFS: change stateid to be a union NFSv4.1: pnfsd, pnfs: protocol level pnfs constants SUNRPC: define xdr_decode_opaque_fixed NFSD: remove duplicate NFS4_STATEID_SIZE
2010-10-25net/sunrpc: Use static const char arraysJoe Perches
Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2010-10-25fs: do not assign default i_ino in new_inodeChristoph Hellwig
Instead of always assigning an increasing inode number in new_inode move the call to assign it into those callers that actually need it. For now callers that need it is estimated conservatively, that is the call is added to all filesystems that do not assign an i_ino by themselves. For a few more filesystems we can avoid assigning any inode number given that they aren't user visible, and for others it could be done lazily when an inode number is actually needed, but that's left for later patches. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Dave Chinner <dchinner@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2010-10-25new helper: ihold()Al Viro
Clones an existing reference to inode; caller must already hold one. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2010-10-25fs: allow for more than 2^31 filesEric Dumazet
Andrew, Could you please review this patch, you probably are the right guy to take it, because it crosses fs and net trees. Note : /proc/sys/fs/file-nr is a read-only file, so this patch doesnt depend on previous patch (sysctl: fix min/max handling in __do_proc_doulongvec_minmax()) Thanks ! [PATCH V4] fs: allow for more than 2^31 files Robin Holt tried to boot a 16TB system and found af_unix was overflowing a 32bit value : <quote> We were seeing a failure which prevented boot. The kernel was incapable of creating either a named pipe or unix domain socket. This comes down to a common kernel function called unix_create1() which does: atomic_inc(&unix_nr_socks); if (atomic_read(&unix_nr_socks) > 2 * get_max_files()) goto out; The function get_max_files() is a simple return of files_stat.max_files. files_stat.max_files is a signed integer and is computed in fs/file_table.c's files_init(). n = (mempages * (PAGE_SIZE / 1024)) / 10; files_stat.max_files = n; In our case, mempages (total_ram_pages) is approx 3,758,096,384 (0xe0000000). That leaves max_files at approximately 1,503,238,553. This causes 2 * get_max_files() to integer overflow. </quote> Fix is to let /proc/sys/fs/file-nr & /proc/sys/fs/file-max use long integers, and change af_unix to use an atomic_long_t instead of atomic_t. get_max_files() is changed to return an unsigned long. get_nr_files() is changed to return a long. unix_nr_socks is changed from atomic_t to atomic_long_t, while not strictly needed to address Robin problem. Before patch (on a 64bit kernel) : # echo 2147483648 >/proc/sys/fs/file-max # cat /proc/sys/fs/file-max -18446744071562067968 After patch: # echo 2147483648 >/proc/sys/fs/file-max # cat /proc/sys/fs/file-max 2147483648 # cat /proc/sys/fs/file-nr 704 0 2147483648 Reported-by: Robin Holt <holt@sgi.com> Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Acked-by: David Miller <davem@davemloft.net> Reviewed-by: Robin Holt <holt@sgi.com> Tested-by: Robin Holt <holt@sgi.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2010-10-25svcrpc: svc_tcp_sendto XPT_DEAD check is redundantJ. Bruce Fields
The only caller (svc_send) has already checked XPT_DEAD. Signed-off-by: J. Bruce Fields <bfields@redhat.com>
2010-10-25svcrpc: no need for XPT_DEAD check in svc_xprt_enqueueJ. Bruce Fields
If any xprt marked DEAD is also left BUSY for the rest of its life, then the XPT_DEAD check here is superfluous--we'll get the same result from the XPT_BUSY check just after. Signed-off-by: J. Bruce Fields <bfields@redhat.com>
2010-10-25svcrpc: assume svc_delete_xprt() called only onceJ. Bruce Fields
As long as DEAD exports are left BUSY, and svc_delete_xprt is called only with BUSY held, then svc_delete_xprt() will never be called on an xprt that is already DEAD. Signed-off-by: J. Bruce Fields <bfields@redhat.com>
2010-10-25svcrpc: never clear XPT_BUSY on dead xprtJ. Bruce Fields
Once an xprt has been deleted, there's no reason to allow it to be enqueued--at worst, that might cause the xprt to be re-added to some global list, resulting in later corruption. Also, note this leaves us with no need for the reference-count manipulation here. Reviewed-by: NeilBrown <neilb@suse.de> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
2010-10-25Merge branch 'nfs-for-2.6.37' of ↵Linus Torvalds
git://git.linux-nfs.org/projects/trondmy/nfs-2.6 * 'nfs-for-2.6.37' of git://git.linux-nfs.org/projects/trondmy/nfs-2.6: (67 commits) SUNRPC: Cleanup duplicate assignment in rpcauth_refreshcred nfs: fix unchecked value Ask for time_delta during fsinfo probe Revalidate caches on lock SUNRPC: After calling xprt_release(), we must restart from call_reserve NFSv4: Fix up the 'dircount' hint in encode_readdir NFSv4: Clean up nfs4_decode_dirent NFSv4: nfs4_decode_dirent must clear entry->fattr->valid NFSv4: Fix a regression in decode_getfattr NFSv4: Fix up decode_attr_filehandle() to handle the case of empty fh pointer NFS: Ensure we check all allocation return values in new readdir code NFS: Readdir plus in v4 NFS: introduce generic decode_getattr function NFS: check xdr_decode for errors NFS: nfs_readdir_filler catch all errors NFS: readdir with vmapped pages NFS: remove page size checking code NFS: decode_dirent should use an xdr_stream SUNRPC: Add a helper function xdr_inline_peek NFS: remove readdir plus limit ...
2010-10-25[S390] cleanup lowcore access from external interruptsMartin Schwidefsky
Read external interrupts parameters from the lowcore in the first level interrupt handler in entry[64].S. Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2010-10-24SUNRPC: Cleanup duplicate assignment in rpcauth_refreshcredTrond Myklebust
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2010-10-24SUNRPC: After calling xprt_release(), we must restart from call_reserveTrond Myklebust
Rob Leslie reports seeing the following Oops after his Kerberos session expired. BUG: unable to handle kernel NULL pointer dereference at 00000058 IP: [<e186ed94>] rpcauth_refreshcred+0x11/0x12c [sunrpc] *pde = 00000000 Oops: 0000 [#1] last sysfs file: /sys/devices/platform/pc87360.26144/temp3_input Modules linked in: autofs4 authenc esp4 xfrm4_mode_transport ipt_LOG ipt_REJECT xt_limit xt_state ipt_REDIRECT xt_owner xt_HL xt_hl xt_tcpudp xt_mark cls_u32 cls_tcindex sch_sfq sch_htb sch_dsmark geodewdt deflate ctr twofish_generic twofish_i586 twofish_common camellia serpent blowfish cast5 cbc xcbc rmd160 sha512_generic sha1_generic hmac crypto_null af_key rpcsec_gss_krb5 nfsd exportfs nfs lockd fscache nfs_acl auth_rpcgss sunrpc ip_gre sit tunnel4 dummy ext3 jbd nf_nat_irc nf_conntrack_irc nf_nat_ftp nf_conntrack_ftp iptable_mangle iptable_nat nf_nat nf_conntrack_ipv4 nf_conntrack nf_defrag_ipv4 iptable_filter ip_tables x_tables pc8736x_gpio nsc_gpio pc87360 hwmon_vid loop aes_i586 aes_generic sha256_generic dm_crypt cs5535_gpio serio_raw cs5535_mfgpt hifn_795x des_generic geode_rng rng_core led_class ext4 mbcache jbd2 crc16 dm_mirror dm_region_hash dm_log dm_snapshot dm_mod sd_mod crc_t10dif ide_pci_generic cs5536 amd74xx ide_core pata_cs5536 ata_generic libata usb_storage via_rhine mii scsi_mod btrfs zlib_deflate crc32c libcrc32c [last unloaded: scsi_wait_scan] Pid: 12875, comm: sudo Not tainted 2.6.36-net5501 #1 / EIP: 0060:[<e186ed94>] EFLAGS: 00010292 CPU: 0 EIP is at rpcauth_refreshcred+0x11/0x12c [sunrpc] EAX: 00000000 EBX: defb13a0 ECX: 00000006 EDX: e18683b8 ESI: defb13a0 EDI: 00000000 EBP: 00000000 ESP: de571d58 DS: 007b ES: 007b FS: 0000 GS: 0033 SS: 0068 Process sudo (pid: 12875, ti=de570000 task=decd1430 task.ti=de570000) Stack: e186e008 00000000 defb13a0 0000000d deda6000 e1868f22 e196f12b defb13a0 <0> defb13d8 00000000 00000000 e186e0aa 00000000 defb13a0 de571dac 00000000 <0> e186956c de571e34 debea5c0 de571dc8 e186967a 00000000 debea5c0 de571e34 Call Trace: [<e186e008>] ? rpc_wake_up_next+0x114/0x11b [sunrpc] [<e1868f22>] ? call_decode+0x24a/0x5af [sunrpc] [<e196f12b>] ? nfs4_xdr_dec_access+0x0/0xa2 [nfs] [<e186e0aa>] ? __rpc_execute+0x62/0x17b [sunrpc] [<e186956c>] ? rpc_run_task+0x91/0x97 [sunrpc] [<e186967a>] ? rpc_call_sync+0x40/0x5b [sunrpc] [<e1969ca2>] ? nfs4_proc_access+0x10a/0x176 [nfs] [<e19572fa>] ? nfs_do_access+0x2b1/0x2c0 [nfs] [<e186ed61>] ? rpcauth_lookupcred+0x62/0x84 [sunrpc] [<e19573b6>] ? nfs_permission+0xad/0x13b [nfs] [<c0177824>] ? exec_permission+0x15/0x4b [<c0177fbd>] ? link_path_walk+0x4f/0x456 [<c017867d>] ? path_walk+0x4c/0xa8 [<c0179678>] ? do_path_lookup+0x1f/0x68 [<c017a3fb>] ? user_path_at+0x37/0x5f [<c016359c>] ? handle_mm_fault+0x229/0x55b [<c0170a2d>] ? sys_faccessat+0x93/0x146 [<c0170aef>] ? sys_access+0xf/0x13 [<c02cf615>] ? syscall_call+0x7/0xb Code: 0f 94 c2 84 d2 74 09 8b 44 24 0c e8 6a e9 8b de 83 c4 14 89 d8 5b 5e 5f 5d c3 55 57 56 53 83 ec 1c fc 89 c6 8b 40 10 89 44 24 04 <8b> 58 58 85 db 0f 85 d4 00 00 00 0f b7 46 70 8b 56 20 89 c5 83 EIP: [<e186ed94>] rpcauth_refreshcred+0x11/0x12c [sunrpc] SS:ESP 0068:de571d58 CR2: 0000000000000058 This appears to be caused by the function rpc_verify_header() first calling xprt_release(), then doing a call_refresh. If we release the transport slot, we should _always_ jump back to call_reserve before calling anything else. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com> Cc: stable@kernel.org
2010-10-24Merge branch 'for-next' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial * 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (39 commits) Update broken web addresses in arch directory. Update broken web addresses in the kernel. Revert "drivers/usb: Remove unnecessary return's from void functions" for musb gadget Revert "Fix typo: configuation => configuration" partially ida: document IDA_BITMAP_LONGS calculation ext2: fix a typo on comment in ext2/inode.c drivers/scsi: Remove unnecessary casts of private_data drivers/s390: Remove unnecessary casts of private_data net/sunrpc/rpc_pipe.c: Remove unnecessary casts of private_data drivers/infiniband: Remove unnecessary casts of private_data drivers/gpu/drm: Remove unnecessary casts of private_data kernel/pm_qos_params.c: Remove unnecessary casts of private_data fs/ecryptfs: Remove unnecessary casts of private_data fs/seq_file.c: Remove unnecessary casts of private_data arm: uengine.c: remove C99 comments arm: scoop.c: remove C99 comments Fix typo configue => configure in comments Fix typo: configuation => configuration Fix typo interrest[ing|ed] => interest[ing|ed] Fix various typos of valid in comments ... Fix up trivial conflicts in: drivers/char/ipmi/ipmi_si_intf.c drivers/usb/gadget/rndis.c net/irda/irnet/irnet_ppp.c
2010-10-23SUNRPC: Add a helper function xdr_inline_peekTrond Myklebust
We sometimes need to be able to read ahead in an xdr_stream without incrementing the current pointer position. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2010-10-23Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6Linus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6: (1699 commits) bnx2/bnx2x: Unsupported Ethtool operations should return -EINVAL. vlan: Calling vlan_hwaccel_do_receive() is always valid. tproxy: use the interface primary IP address as a default value for --on-ip tproxy: added IPv6 support to the socket match cxgb3: function namespace cleanup tproxy: added IPv6 support to the TPROXY target tproxy: added IPv6 socket lookup function to nf_tproxy_core be2net: Changes to use only priority codes allowed by f/w tproxy: allow non-local binds of IPv6 sockets if IP_TRANSPARENT is enabled tproxy: added tproxy sockopt interface in the IPV6 layer tproxy: added udp6_lib_lookup function tproxy: added const specifiers to udp lookup functions tproxy: split off ipv6 defragmentation to a separate module l2tp: small cleanup nf_nat: restrict ICMP translation for embedded header can: mcp251x: fix generation of error frames can: mcp251x: fix endless loop in interrupt handler if CANINTF_MERRF is set can-raw: add msg_flags to distinguish local traffic 9p: client code cleanup rds: make local functions/variables static ... Fix up conflicts in net/core/dev.c, drivers/net/pcmcia/smc91c92_cs.c and drivers/net/wireless/ath/ath9k/debug.c as per David
2010-10-22Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty-2.6Linus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty-2.6: (49 commits) serial8250: ratelimit "too much work" error serial: bfin_sport_uart: speed up sport RX sample rate to be 3% faster serial: abstraction for 8250 legacy ports serial/imx: check that the buffer is non-empty before sending it out serial: mfd: add more baud rates support jsm: Remove the uart port on errors Alchemy: Add UART PM methods. 8250: allow platforms to override PM hook. altera_uart: Don't use plain integer as NULL pointer altera_uart: Fix missing prototype for registering an early console altera_uart: Fixup type usage of port flags altera_uart: Make it possible to use Altera UART and 8250 ports together altera_uart: Add support for different address strides altera_uart: Add support for getting mapbase and IRQ from resources altera_uart: Add support for polling mode (IRQ-less) serial: Factor out uart_poll_timeout() from 8250 driver serial: mark the 8250 driver as maintained serial: 8250: Don't delay after transmitter is ready. tty: MAINTAINERS: add drivers/serial/jsm/ as maintained driver vcs: invoke the vt update callback when /dev/vcs* is written to ...
2010-10-22Merge branch 'llseek' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/bklLinus Torvalds
* 'llseek' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/bkl: vfs: make no_llseek the default vfs: don't use BKL in default_llseek llseek: automatically add .llseek fop libfs: use generic_file_llseek for simple_attr mac80211: disallow seeks in minstrel debug code lirc: make chardev nonseekable viotape: use noop_llseek raw: use explicit llseek file operations ibmasmfs: use generic_file_llseek spufs: use llseek in all file operations arm/omap: use generic_file_llseek in iommu_debug lkdtm: use generic_file_llseek in debugfs net/wireless: use generic_file_llseek in debugfs drm: use noop_llseek
2010-10-22Merge branch 'config' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/bklLinus Torvalds
* 'config' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/bkl: BKL: introduce CONFIG_BKL. dabusb: remove the BKL sunrpc: remove the big kernel lock init/main.c: remove BKL notations blktrace: remove the big kernel lock rtmutex-tester: make it build without BKL dvb-core: kill the big kernel lock dvb/bt8xx: kill the big kernel lock tlclk: remove big kernel lock fix rawctl compat ioctls breakage on amd64 and itanic uml: kill big kernel lock parisc: remove big kernel lock cris: autoconvert trivial BKL users alpha: kill big kernel lock isapnp: BKL removal s390/block: kill the big kernel lock hpet: kill BKL, add compat_ioctl
2010-10-22tty: icount changeover for other main devicesAlan Cox
Again basically cut and paste Convert the main driver set to use the hooks for GICOUNT Signed-off-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-10-21Merge branch 'sched-core-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (29 commits) sched: Export account_system_vtime() sched: Call tick_check_idle before __irq_enter sched: Remove irq time from available CPU power sched: Do not account irq time to current task x86: Add IRQ_TIME_ACCOUNTING sched: Add IRQ_TIME_ACCOUNTING, finer accounting of irq time sched: Add a PF flag for ksoftirqd identification sched: Consolidate account_system_vtime extern declaration sched: Fix softirq time accounting sched: Drop group_capacity to 1 only if local group has extra capacity sched: Force balancing on newidle balance if local group has capacity sched: Set group_imb only a task can be pulled from the busiest cpu sched: Do not consider SCHED_IDLE tasks to be cache hot sched: Drop all load weight manipulation for RT tasks sched: Create special class for stop/migrate work sched: Unindent labels sched: Comment updates: fix default latency and granularity numbers tracing/sched: Add sched_pi_setprio tracepoint sched: Give CPU bound RT tasks preference sched: Try not to migrate higher priority RT tasks ...
2010-10-21Merge branch 'perf-core-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (163 commits) tracing: Fix compile issue for trace_sched_wakeup.c [S390] hardirq: remove pointless header file includes [IA64] Move local_softirq_pending() definition perf, powerpc: Fix power_pmu_event_init to not use event->ctx ftrace: Remove recursion between recordmcount and scripts/mod/empty jump_label: Add COND_STMT(), reducer wrappery perf: Optimize sw events perf: Use jump_labels to optimize the scheduler hooks jump_label: Add atomic_t interface jump_label: Use more consistent naming perf, hw_breakpoint: Fix crash in hw_breakpoint creation perf: Find task before event alloc perf: Fix task refcount bugs perf: Fix group moving irq_work: Add generic hardirq context callbacks perf_events: Fix transaction recovery in group_sched_in() perf_events: Fix bogus AMD64 generic TLB events perf_events: Fix bogus context time tracking tracing: Remove parent recording in latency tracer graph options tracing: Use one prologue for the preempt irqs off tracer function tracers ...
2010-10-21Merge branch 'core-rcu-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'core-rcu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (52 commits) sched: fix RCU lockdep splat from task_group() rcu: using ACCESS_ONCE() to observe the jiffies_stall/rnp->qsmask value sched: suppress RCU lockdep splat in task_fork_fair net: suppress RCU lockdep false positive in sock_update_classid rcu: move check from rcu_dereference_bh to rcu_read_lock_bh_held rcu: Add advice to PROVE_RCU_REPEATEDLY kernel config parameter rcu: Add tracing data to support queueing models rcu: fix sparse errors in rcutorture.c rcu: only one evaluation of arg in rcu_dereference_check() unless sparse kernel: Remove undead ifdef CONFIG_DEBUG_LOCK_ALLOC rcu: fix _oddness handling of verbose stall warnings rcu: performance fixes to TINY_PREEMPT_RCU callback checking rcu: upgrade stallwarn.txt documentation for CPU-bound RT processes vhost: add __rcu annotations rcu: add comment stating that list_empty() applies to RCU-protected lists rcu: apply TINY_PREEMPT_RCU read-side speedup to TREE_PREEMPT_RCU rcu: combine duplicate code, courtesy of CONFIG_PREEMPT_RCU rcu: Upgrade srcu_read_lock() docbook about SRCU grace periods rcu: document ways of stalling updates in low-memory situations rcu: repair code-duplication FIXMEs ...
2010-10-21Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/security-testing-2.6 * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/security-testing-2.6: (26 commits) selinux: include vmalloc.h for vmalloc_user secmark: fix config problem when CONFIG_NF_CONNTRACK_SECMARK is not set selinux: implement mmap on /selinux/policy SELinux: allow userspace to read policy back out of the kernel SELinux: drop useless (and incorrect) AVTAB_MAX_SIZE SELinux: deterministic ordering of range transition rules kernel: roundup should only reference arguments once kernel: rounddown helper function secmark: export secctx, drop secmark in procfs conntrack: export lsm context rather than internal secid via netlink security: secid_to_secctx returns len when data is NULL secmark: make secmark object handling generic secmark: do not return early if there was no error AppArmor: Ensure the size of the copy is < the buffer allocated to hold it TOMOYO: Print URL information before panic(). security: remove unused parameter from security_task_setscheduler() tpm: change 'tpm_suspend_pcr' to be module parameter selinux: fix up style problem on /selinux/status selinux: change to new flag variable selinux: really fix dependency causing parallel compile failure. ...
2010-10-21Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client: (22 commits) ceph: do not carry i_lock for readdir from dcache fs/ceph/xattr.c: Use kmemdup rbd: passing wrong variable to bvec_kunmap_irq() rbd: null vs ERR_PTR ceph: fix num_pages_free accounting in pagelist ceph: add CEPH_MDS_OP_SETDIRLAYOUT and associated ioctl. ceph: don't crash when passed bad mount options ceph: fix debugfs warnings block: rbd: removing unnecessary test block: rbd: fixed may leaks ceph: switch from BKL to lock_flocks() ceph: preallocate flock state without locks held ceph: add pagelist_reserve, pagelist_truncate, pagelist_set_cursor ceph: use mapping->nrpages to determine if mapping is empty ceph: only invalidate on check_caps if we actually have pages ceph: do not hide .snap in root directory rbd: introduce rados block device (rbd), based on libceph ceph: factor out libceph from Ceph file system ceph-rbd: osdc support for osd call and rollback operations ceph: messenger and osdc changes for rbd ...
2010-10-21Merge branch 'master' of ↵David S. Miller
master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 Conflicts: net/core/dev.c
2010-10-21Merge branch 'master' of ↵David S. Miller
git://git.kernel.org/pub/scm/linux/kernel/git/kaber/nf-next-2.6
2010-10-21Merge branch 'for-patrick' of ↵Patrick McHardy
git://git.kernel.org/pub/scm/linux/kernel/git/horms/lvs-test-2.6
2010-10-21tproxy: use the interface primary IP address as a default value for --on-ipBalazs Scheidler
The REDIRECT target and the older TProxy versions used the primary address of the incoming interface as the default value of the --on-ip parameter. This was unintentionally changed during the initial TProxy submission and caused confusion among users. Since IPv6 has no notion of primary address, we just select the first address on the list: this way the socket lookup finds wildcard bound sockets properly and we cannot really do better without the user telling us the IPv6 address of the proxy. This is implemented for both IPv4 and IPv6. Signed-off-by: Balazs Scheidler <bazsi@balabit.hu> Signed-off-by: KOVACS Krisztian <hidden@balabit.hu> Signed-off-by: Patrick McHardy <kaber@trash.net>
2010-10-21tproxy: added IPv6 support to the socket matchBalazs Scheidler
The ICMP extraction bits were contributed by Harry Mason. Signed-off-by: Balazs Scheidler <bazsi@balabit.hu> Signed-off-by: KOVACS Krisztian <hidden@balabit.hu> Signed-off-by: Patrick McHardy <kaber@trash.net>
2010-10-21tproxy: added IPv6 support to the TPROXY targetBalazs Scheidler
This requires a new revision as the old target structure was IPv4 specific. Signed-off-by: Balazs Scheidler <bazsi@balabit.hu> Signed-off-by: KOVACS Krisztian <hidden@balabit.hu> Signed-off-by: Patrick McHardy <kaber@trash.net>
2010-10-21SUNRPC: Properly initialize sock_xprt.srcaddr in all casesChuck Lever
The source address field in the transport's sock_xprt is initialized ONLY IF the RPC application passed a pointer to a source address during the call to rpc_create(). However, xs_bind() subsequently uses the value of this field without regard to whether the source address was initialized during transport creation or not. So far we've been lucky: the uninitialized value of this field is zeroes. xs_bind(), until recently, used only the sin[6]_addr field in this sockaddr, and all zeroes is a valid value for this: it means ANYADDR. This is a happy coincidence. However, xs_bind() now wants to use the sa_family field as well, and expects it to be initialized to something other than zero. Therefore, the source address sockaddr field should be fully initialized at transport create time in _every_ case, not just when the RPC application wants to use a specific bind address. Bruce added a workaround for this missing initialization by adjusting commit 6bc9638a, but the "right" way to do this is to ensure that the source address sockaddr is always correctly initialized from the get-go. This patch doesn't introduce a behavior change. It's simply a clean-up of Bruce's fix, to prevent future problems of this kind. It may look like overkill, but a) it clearly documents the default initial value of this field, b) it doesn't assume that the sockaddr_storage memory is first initialized to any particular value, and c) it will fail verbosely if some unknown address family is passed in Originally introduced by commit d3bc9a1d. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
2010-10-21SUNRPC: Use conventional switch statement when reclassifying socketsChuck Lever
Clean up. Defensive coding: If "family" is ever something that is neither AF_INET nor AF_INET6, xs_reclassify_socket6() is not the appropriate default action. Choose to do nothing in that case. Introduced by commit 6bc9638a. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
2010-10-21sunrpc/xprtrdma: clean up workqueue usageTejun Heo
* Create and use svc_rdma_wq instead of using the system workqueue and flush_scheduled_work(). This workqueue is necessary to serve as flushing domain for rdma->sc_work which is used to destroy itself and thus can't be flushed explicitly. * Replace cancel_delayed_work() + flush_scheduled_work() with cancel_delayed_work_sync(). * Implement synchronous connect in xprt_rdma_connect() using flush_delayed_work() on the rdma_connect work instead of using flush_scheduled_work(). This is to prepare for the deprecation and removal of flush_scheduled_work(). Signed-off-by: Tejun Heo <tj@kernel.org> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
2010-10-21tproxy: allow non-local binds of IPv6 sockets if IP_TRANSPARENT is enabledBalazs Scheidler
Signed-off-by: Balazs Scheidler <bazsi@balabit.hu> Signed-off-by: KOVACS Krisztian <hidden@balabit.hu> Signed-off-by: Patrick McHardy <kaber@trash.net>
2010-10-21tproxy: added tproxy sockopt interface in the IPV6 layerBalazs Scheidler
Support for IPV6_RECVORIGDSTADDR sockopt for UDP sockets were contributed by Harry Mason. Signed-off-by: Balazs Scheidler <bazsi@balabit.hu> Signed-off-by: KOVACS Krisztian <hidden@balabit.hu> Signed-off-by: Patrick McHardy <kaber@trash.net>
2010-10-21tproxy: added udp6_lib_lookup functionBalazs Scheidler
Just like with IPv4, we need access to the UDP hash table to look up local sockets, but instead of exporting the global udp_table, export a lookup function. Signed-off-by: Balazs Scheidler <bazsi@balabit.hu> Signed-off-by: KOVACS Krisztian <hidden@balabit.hu> Signed-off-by: Patrick McHardy <kaber@trash.net>
2010-10-21tproxy: added const specifiers to udp lookup functionsBalazs Scheidler
The parameters for various UDP lookup functions were non-const, even though they could be const. TProxy has some const references and instead of downcasting it, I added const specifiers along the path. Signed-off-by: Balazs Scheidler <bazsi@balabit.hu> Signed-off-by: KOVACS Krisztian <hidden@balabit.hu> Signed-off-by: Patrick McHardy <kaber@trash.net>
2010-10-21tproxy: split off ipv6 defragmentation to a separate moduleBalazs Scheidler
Like with IPv4, TProxy needs IPv6 defragmentation but does not require connection tracking. Since defragmentation was coupled with conntrack, I split off the two, creating an nf_defrag_ipv6 module, similar to the already existing nf_defrag_ipv4. Signed-off-by: Balazs Scheidler <bazsi@balabit.hu> Signed-off-by: KOVACS Krisztian <hidden@balabit.hu> Signed-off-by: Patrick McHardy <kaber@trash.net>
2010-10-21BKL: introduce CONFIG_BKL.Arnd Bergmann
With all the patches we have queued in the BKL removal tree, only a few dozen modules are left that actually rely on the BKL, and even there are lots of low-hanging fruit. We need to decide what to do about them, this patch illustrates one of the options: Every user of the BKL is marked as 'depends on BKL' in Kconfig, and the CONFIG_BKL becomes a user-visible option. If it gets disabled, no BKL using module can be built any more and the BKL code itself is compiled out. The one exception is file locking, which is practically always enabled and does a 'select BKL' instead. This effectively forces CONFIG_BKL to be enabled until we have solved the fs/lockd mess and can apply the patch that removes the BKL from fs/locks.c. Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2010-10-21l2tp: small cleanupEric Dumazet
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-10-21nf_nat: restrict ICMP translation for embedded headerJulian Anastasov
Skip ICMP translation of embedded protocol header if NAT bits are not set. Needed for IPVS to see the original embedded addresses because for IPVS traffic the IPS_SRC_NAT_BIT and IPS_DST_NAT_BIT bits are not set. It happens when IPVS performs DNAT for client packets after using nf_conntrack_alter_reply to expect replies from real server. Signed-off-by: Julian Anastasov <ja@ssi.bg> Signed-off-by: Simon Horman <horms@verge.net.au>
2010-10-21can-raw: add msg_flags to distinguish local trafficOliver Hartkopp
CAN has no addressing scheme. It is currently impossible for userspace to tell is a received CAN frame comes from another process on the local host, or from a remote CAN device. This patch add support for userspace applications to distinguish between 'own', 'local' and 'remote' CAN traffic. The distinction is made by returning flags in msg->msg_flags in the call to recvmsg(). The added documentation explains the introduced flags. Signed-off-by: Kurt Van Dijck <kurt.van.dijck@eia.be> Signed-off-by: Oliver Hartkopp <socketcan@hartkopp.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-10-219p: client code cleanupstephen hemminger
Make p9_client_version static since only used in one file. Remove p9_client_auth because it is defined but never used. Compile tested only. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-10-21rds: make local functions/variables staticstephen hemminger
The RDS protocol has lots of functions that should be declared static. rds_message_get/add_version_extension is removed since it defined but never used. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-10-21napi: unexport napi_reuse_skbstephen hemminger
The function napi_reuse_skb is only used inside core. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-10-21tipc: delete needless memset from bearer enabling.Allan Stephens
Eliminates zeroing out of the new bearer structure at the start of activation, since it is already in that state. Signed-off-by: Allan Stephens <allan.stephens@windriver.com> Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com> Acked-by: Neil Horman <nhorman@tuxdriver.com> Signed-off-by: David S. Miller <davem@davemloft.net>