- 02 May, 2013 1 commit
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git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfsLinus Torvalds authored
Pull VFS updates from Al Viro, Misc cleanups all over the place, mainly wrt /proc interfaces (switch create_proc_entry to proc_create(), get rid of the deprecated create_proc_read_entry() in favor of using proc_create_data() and seq_file etc). 7kloc removed. * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (204 commits) don't bother with deferred freeing of fdtables proc: Move non-public stuff from linux/proc_fs.h to fs/proc/internal.h proc: Make the PROC_I() and PDE() macros internal to procfs proc: Supply a function to remove a proc entry by PDE take cgroup_open() and cpuset_open() to fs/proc/base.c ppc: Clean up scanlog ppc: Clean up rtas_flash driver somewhat hostap: proc: Use remove_proc_subtree() drm: proc: Use remove_proc_subtree() drm: proc: Use minor->index to label things, not PDE->name drm: Constify drm_proc_list[] zoran: Don't print proc_dir_entry data in debug reiserfs: Don't access the proc_dir_entry in r_open(), r_start() r_show() proc: Supply an accessor for getting the data from a PDE's parent airo: Use remove_proc_subtree() rtl8192u: Don't need to save device proc dir PDE rtl8187se: Use a dir under /proc/net/r8180/ proc: Add proc_mkdir_data() proc: Move some bits from linux/proc_fs.h to linux/{of.h,signal.h,tty.h} proc: Move PDE_NET() to fs/proc/proc_net.c ...
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- 01 May, 2013 39 commits
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull x86/efi changes from Peter Anvin: "The bulk of these changes are cleaning up the efivars handling and breaking it up into a tree of files. There are a number of fixes as well. The entire changeset is pretty big, but most of it is code movement. Several of these commits are quite new; the history got very messed up due to a mismerge with the urgent changes for rc8 which completely broke IA64, and so Ingo requested that we rebase it to straighten it out." * 'x86-efi-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: efi: remove "kfree(NULL)" efi: locking fix in efivar_entry_set_safe() efi, pstore: Read data from variable store before memcpy() efi, pstore: Remove entry from list when erasing efi, pstore: Initialise 'entry' before iterating efi: split efisubsystem from efivars efivarfs: Move to fs/efivarfs efivars: Move pstore code into the new EFI directory efivars: efivar_entry API efivars: Keep a private global pointer to efivars efi: move utf16 string functions to efi.h x86, efi: Make efi_memblock_x86_reserve_range more readable efivarfs: convert to use simple_open()
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James Hogan authored
Al's commit e1b5bb6d ("consolidate cond_syscall and SYSCALL_ALIAS declarations") broke the build on blackfin and metag due to the following code: #ifndef SYMBOL_NAME #ifdef CONFIG_SYMBOL_PREFIX #define SYMBOL_NAME(x) CONFIG_SYMBOL_PREFIX ## x #else #define SYMBOL_NAME(x) x #endif #endif #define __SYMBOL_NAME(x) __stringify(SYMBOL_NAME(x)) __stringify literally stringifies CONFIG_SYMBOL_PREFIX ##x, so you get lines like this in kernel/sys_ni.s: .weak CONFIG_SYMBOL_PREFIXsys_quotactl .set CONFIG_SYMBOL_PREFIXsys_quotactl,CONFIG_SYMBOL_PREFIXsys_ni_syscall The patches in Rusty's modules-next tree such as "CONFIG_SYMBOL_PREFIX: cleanup." cleans up the whole mess around symbol prefixes, so this patch just attempts to fix the build in the meantime. The intermediate definition of SYMBOL_NAME above isn't used and is incorrect when CONFIG_SYMBOL_PREFIX is defined as CONFIG_SYMBOL_PREFIX is a quoted string literal, so define __SYMBOL_NAME directly depending on CONFIG_SYMBOL_PREFIX. Signed-off-by:
James Hogan <james.hogan@imgtec.com> Mea-culpa-by:
Al Viro <viro@zeniv.linux.org.uk> Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: Mike Frysinger <vapier@gentoo.org> Cc: uclinux-dist-devel@blackfin.uclinux.org Signed-off-by:
Linus Torvalds <torvalds@linux-foundation.org>
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Al Viro authored
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Al Viro authored
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David Howells authored
Move non-public declarations and definitions from linux/proc_fs.h to fs/proc/internal.h. Signed-off-by:
David Howells <dhowells@redhat.com> Signed-off-by:
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David Howells authored
Make the PROC_I() and PDE() macros internal to procfs. This means making PDE_DATA() out of line. This could be made more optimal by storing PDE()->data into inode->i_private. Also provide a __PDE_DATA() that is inline and internal to procfs. Signed-off-by:
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David Howells authored
Supply a function (proc_remove()) to remove a proc entry (and any subtree rooted there) by proc_dir_entry pointer rather than by name and (optionally) root dir entry pointer. This allows us to eliminate all remaining pde->name accesses outside of procfs. Signed-off-by:
Grant Likely <grant.likely@linaro.or> cc: linux-acpi@vger.kernel.org cc: openipmi-developer@lists.sourceforge.net cc: devicetree-discuss@lists.ozlabs.org cc: linux-pci@vger.kernel.org cc: netdev@vger.kernel.org cc: netfilter-devel@vger.kernel.org cc: alsa-devel@alsa-project.org Signed-off-by:
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Al Viro authored
Signed-off-by: -
David Howells authored
Clean up the pseries scanlog driver's use of procfs: (1) Don't need to save the proc_dir_entry pointer as we have the filename to remove with. (2) Save the scan log buffer pointer in a static variable (there is only one of it) and don't save it in the PDE (which doesn't have a destructor). Signed-off-by: -
David Howells authored
Clean up some of the problems with the rtas_flash driver: (1) It shouldn't fiddle with the internals of the procfs filesystem (altering pde->count). (2) If pid namespaces are in effect, then you can get multiple inodes connected to a single pde, thereby rendering the pde->count > 2 test useless. (3) The pde->count fudging doesn't work for forked, dup'd or cloned file descriptors, so add static mutexes and use them to wrap access to the driver through read, write and release methods. (4) The driver can only handle one device, so allocate most of the data previously attached to the pde->data as static variables instead (though allocate the validation data buffer with kmalloc). (5) We don't need to save the pde pointers as long as we have the filenames available for removal. (6) Don't try to multiplex what the update file read method does based on the filename. Instead provide separate file ops and split the function. Whilst we're at it, tabulate the procfile information and loop through it when creating or destroying them rather than manually coding each one. [Folded fixes from Vasant Hegde <hegdevasant@linux.vnet.ibm.com>] Signed-off-by: -
David Howells authored
Use remove_proc_subtree() rather than remove_proc_entry() to remove a device-specific proc directory and all its children. Signed-off-by:
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David Howells authored
Use remove_proc_subtree() rather than remove_proc_entry() to remove a minor-specific drm proc directory and all its children. Things could theoretically be improved by storing the drm_minor pointer in the minor-specific dir proc_dir_entry struct data and then scrapping the list of proc files - but that's shared with the debugfs interface where you can't do that, so I don't see an easy way of doing it. Signed-off-by:
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David Howells authored
Use minor->index to label things, not the name field from the proc_dir_entry of the /proc/dwm/<minor>/ directory. Also, use "%u" not "%d" to render the value and use a 12-byte buffer in which to render the integer, not a 16-byte buffer. The longest string an unsigned int can give you is 10 chars (4294967295) plus a NUL, so round up to 12 as the stack is likely to be 4- or 8-byte aligned. Signed-off-by:
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David Howells authored
Constify drm_proc_list[] and related pointers. Signed-off-by:
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David Howells authored
Don't print proc_dir_entry data in debug as we're soon to have no direct access to the contents of the PDE. Print what was put in there instead. Signed-off-by:
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David Howells authored
Don't access the proc_dir_entry in ReiserFS's r_open(), r_start() r_show() procfs interface functions. ReiserFS stores the ->show() method pointer in PDE->data and the super_block pointer in PDE->parent->data. This isn't changing. Currently, ReiserFS passes the PDE pointer into seq_file::private from r_open() so that r_start() and r_show() can then access it. Instead, use seq_open_private() to allocate a two-pointer struct that's passed through seq_file::private and put the ->show() method and the sb pointers in there. Signed-off-by:
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David Howells authored
Supply an accessor function for getting the private data from the parent proc_dir_entry struct of the proc_dir_entry struct associated with an inode. ReiserFS, for instance, stores the super_block pointer in the proc directory it makes for that super_block, and a pointer to the respective seq_file show function in each of the proc files in that directory. This allows a reduction in the number of file_operations structs, open functions and seq_operations structs required. The problem otherwise is that each show function requires two pieces of data but only has storage for one per PDE (and this has no release function). Signed-off-by:
Mauro Carvalho Chehab <mchehab@redhat.com> Acked-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org> cc: Jerry Chuang <jerry-chuang@realtek.com> cc: Maxim Mikityanskiy <maxtram95@gmail.com> cc: YAMANE Toshiaki <yamanetoshi@gmail.com> cc: linux-wireless@vger.kernel.org cc: linux-scsi@vger.kernel.org cc: devel@driverdev.osuosl.org Signed-off-by:
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David Howells authored
Use remove_proc_subtree() to remove the airo device subdir and all its children instead of doing it manually. Signed-off-by:
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David Howells authored
Don't need to save the PDE of a directory created under /proc/net/rtl8192/ as we can use proc subtree deletion to get rid of it and all its children. Signed-off-by:
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David Howells authored
Create a dir under /proc/net/r8180/ named for the device and create that device's files under there. This means that there won't be a problem for multiple devices in the system (if such is possible) and it means we don't need to save the 'device directory' PDE any more as we can just do a proc subtree removal. Signed-off-by:
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David Howells authored
Add proc_mkdir_data() to allow procfs directories to be created that are annotated at the time of creation with private data rather than doing this post-creation. This means no access is then required to the proc_dir_entry struct to set this. Signed-off-by:
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David Howells authored
Move some bits from linux/proc_fs.h to linux/of.h, signal.h and tty.h. Also move proc_tty_init() and proc_device_tree_init() to fs/proc/internal.h as they're internal to procfs. Signed-off-by:
Grant Likely <grant.likely@secretlab.ca> cc: devicetree-discuss@lists.ozlabs.org cc: linux-arch@vger.kernel.org cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> cc: Jri Slaby <jslaby@suse.cz> Signed-off-by:
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David Howells authored
Move PDE_NET() to fs/proc/proc_net.c as that's where the only user is. Signed-off-by:
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David Howells authored
Split the proc namespace stuff out into linux/proc_ns.h. Signed-off-by:
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David Howells authored
Move proc_fd() to fs/proc/fd.h. Signed-off-by:
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David Howells authored
Uninline pid_delete_dentry() as it's only used by three function pointers. Signed-off-by:
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David Howells authored
Supply accessor functions to set attributes in proc_dir_entry structs. The following are supplied: proc_set_size() and proc_set_user(). Signed-off-by:
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git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-nextLinus Torvalds authored
Pull networking updates from David Miller: "Highlights (1721 non-merge commits, this has to be a record of some sort): 1) Add 'random' mode to team driver, from Jiri Pirko and Eric Dumazet. 2) Make it so that any driver that supports configuration of multiple MAC addresses can provide the forwarding database add and del calls by providing a default implementation and hooking that up if the driver doesn't have an explicit set of handlers. From Vlad Yasevich. 3) Support GSO segmentation over tunnels and other encapsulating devices such as VXLAN, from Pravin B Shelar. 4) Support L2 GRE tunnels in the flow dissector, from Michael Dalton. 5) Implement Tail Loss Probe (TLP) detection in TCP, from Nandita Dukkipati. 6) In the PHY layer, allow supporting wake-on-lan in situations where the PHY registers have to be written for it to be configured. Use it to support wake-on-lan in mv643xx_eth. From Michael Stapelberg. 7) Significantly improve firewire IPV6 support, from YOSHIFUJI Hideaki. 8) Allow multiple packets to be sent in a single transmission using network coding in batman-adv, from Martin Hundebøll. 9) Add support for T5 cxgb4 chips, from Santosh Rastapur. 10) Generalize the VXLAN forwarding tables so that there is more flexibility in configurating various aspects of the endpoints. From David Stevens. 11) Support RSS and TSO in hardware over GRE tunnels in bxn2x driver, from Dmitry Kravkov. 12) Zero copy support in nfnelink_queue, from Eric Dumazet and Pablo Neira Ayuso. 13) Start adding networking selftests. 14) In situations of overload on the same AF_PACKET fanout socket, or per-cpu packet receive queue, minimize drop by distributing the load to other cpus/fanouts. From Willem de Bruijn and Eric Dumazet. 15) Add support for new payload offset BPF instruction, from Daniel Borkmann. 16) Convert several drivers over to mdoule_platform_driver(), from Sachin Kamat. 17) Provide a minimal BPF JIT image disassembler userspace tool, from Daniel Borkmann. 18) Rewrite F-RTO implementation in TCP to match the final specification of it in RFC4138 and RFC5682. From Yuchung Cheng. 19) Provide netlink socket diag of netlink sockets ("Yo dawg, I hear you like netlink, so I implemented netlink dumping of netlink sockets.") From Andrey Vagin. 20) Remove ugly passing of rtnetlink attributes into rtnl_doit functions, from Thomas Graf. 21) Allow userspace to be able to see if a configuration change occurs in the middle of an address or device list dump, from Nicolas Dichtel. 22) Support RFC3168 ECN protection for ipv6 fragments, from Hannes Frederic Sowa. 23) Increase accuracy of packet length used by packet scheduler, from Jason Wang. 24) Beginning set of changes to make ipv4/ipv6 fragment handling more scalable and less susceptible to overload and locking contention, from Jesper Dangaard Brouer. 25) Get rid of using non-type-safe NLMSG_* macros and use nlmsg_*() instead. From Hong Zhiguo. 26) Optimize route usage in IPVS by avoiding reference counting where possible, from Julian Anastasov. 27) Convert IPVS schedulers to RCU, also from Julian Anastasov. 28) Support cpu fanouts in xt_NFQUEUE netfilter target, from Holger Eitzenberger. 29) Network namespace support for nf_log, ebt_log, xt_LOG, ipt_ULOG, nfnetlink_log, and nfnetlink_queue. From Gao feng. 30) Implement RFC3168 ECN protection, from Hannes Frederic Sowa. 31) Support several new r8169 chips, from Hayes Wang. 32) Support tokenized interface identifiers in ipv6, from Daniel Borkmann. 33) Use usbnet_link_change() helper in USB net driver, from Ming Lei. 34) Add 802.1ad vlan offload support, from Patrick McHardy. 35) Support mmap() based netlink communication, also from Patrick McHardy. 36) Support HW timestamping in mlx4 driver, from Amir Vadai. 37) Rationalize AF_PACKET packet timestamping when transmitting, from Willem de Bruijn and Daniel Borkmann. 38) Bring parity to what's provided by /proc/net/packet socket dumping and the info provided by netlink socket dumping of AF_PACKET sockets. From Nicolas Dichtel. 39) Fix peeking beyond zero sized SKBs in AF_UNIX, from Benjamin Poirier" * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1722 commits) filter: fix va_list build error af_unix: fix a fatal race with bit fields bnx2x: Prevent memory leak when cnic is absent bnx2x: correct reading of speed capabilities net: sctp: attribute printl with __printf for gcc fmt checks netlink: kconfig: move mmap i/o into netlink kconfig netpoll: convert mutex into a semaphore netlink: Fix skb ref counting. net_sched: act_ipt forward compat with xtables mlx4_en: fix a build error on 32bit arches Revert "bnx2x: allow nvram test to run when device is down" bridge: avoid OOPS if root port not found drivers: net: cpsw: fix kernel warn on cpsw irq enable sh_eth: use random MAC address if no valid one supplied 3c509.c: call SET_NETDEV_DEV for all device types (ISA/ISAPnP/EISA) tg3: fix to append hardware time stamping flags unix/stream: fix peeking with an offset larger than data in queue unix/dgram: fix peeking with an offset larger than data in queue unix/dgram: peek beyond 0-sized skbs openvswitch: Remove unneeded ovs_netdev_get_ifindex() ... -
Xi Wang authored
This patch fixes the following build error. In file included from include/linux/filter.h:52:0, from arch/arm/net/bpf_jit_32.c:14: include/linux/printk.h:54:2: error: unknown type name ‘va_list’ include/linux/printk.h:105:21: error: unknown type name ‘va_list’ include/linux/printk.h:108:30: error: unknown type name ‘va_list’ Signed-off-by:Xi Wang <xi.wang@gmail.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/dtor/inputLinus Torvalds authored
Pull input updates from Dmitry Torokhov: "Assorted fixes and cleanups to the existing drivers plus a new driver for IMS Passenger Control Unit device they use for ther in-flight entertainment system." * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (44 commits) Input: trackpoint - Optimize trackpoint init to use power-on reset Input: apbps2 - convert to devm_ioremap_resource() Input: ALPS - use %ph to print buffers ARM - shmobile: Armadillo800EVA: Move st1232 reset pin handling Input: st1232 - add reset pin handling Input: st1232 - convert to devm_* infrastructure Input: MT - handle semi-mt devices in core Input: adxl34x - use spi_get_drvdata() Input: ad7877 - use spi_get_drvdata() and spi_set_drvdata() Input: ads7846 - use spi_get_drvdata() and spi_set_drvdata() Input: ims-pcu - fix a memory leak on error Input: sysrq - supplement reset sequence with timeout functionality Input: tegra-kbc - support for defining row/columns based on SoC Input: imx_keypad - switch to using managed resources Input: arc_ps2 - add support for device tree Input: mma8450 - fix signed 12bits to 32bits conversion Input: eeti_ts - remove redundant null check Input: edt-ft5x06 - remove redundant null check before kfree Input: ad714x - add CONFIG_PM_SLEEP to suspend/resume functions Input: adxl34x - add CONFIG_PM_SLEEP to suspend/resume functions ...
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Eric Dumazet authored
Using bit fields is dangerous on ppc64/sparc64, as the compiler [1] uses 64bit instructions to manipulate them. If the 64bit word includes any atomic_t or spinlock_t, we can lose critical concurrent changes. This is happening in af_unix, where unix_sk(sk)->gc_candidate/ gc_maybe_cycle/lock share the same 64bit word. This leads to fatal deadlock, as one/several cpus spin forever on a spinlock that will never be available again. A safer way would be to use a long to store flags. This way we are sure compiler/arch wont do bad things. As we own unix_gc_lock spinlock when clearing or setting bits, we can use the non atomic __set_bit()/__clear_bit(). recursion_level can share the same 64bit location with the spinlock, as it is set only with this spinlock held. [1] bug fixed in gcc-4.8.0 : http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52080Reported-by:
Ambrose Feinstein <ambrose@google.com> Signed-off-by:
Eric Dumazet <edumazet@google.com> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Signed-off-by:
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David S. Miller authored
Yuval Mintz says: ==================== This fixes 2 small bugs - one which may cause an unnecessary link flap, and the other is a small memory leak when unloading while cnic is not loaded. ==================== Signed-off-by: -
Yuval Mintz authored
bnx2x driver allocates searcher T2 tables, but it releases that memory during unload only released if the cnic is loaded. Signed-off-by:
Yuval Mintz <yuvalmin@broadcom.com> Signed-off-by:
Eilon Greenstein <eilong@broadcom.com> Signed-off-by:
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Yaniv Rosner authored
When the bnx2x driver reads the port configuration - mask irrelevant bits. Without this change, the unintended bits may cause the driver to needlessly toggle the link, as a comparison in the link flap avoidance flow will show that the old link did not advertise the same capabilities and thus cannot be retained. Signed-off-by:
Yaniv Rosner <yanivr@broadcom.com> Signed-off-by:
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Daniel Borkmann authored
Let GCC check for format string errors in sctp's probe printl function. This patch fixes the warning when compiled with W=1: net/sctp/probe.c:73:2: warning: function might be possible candidate for 'gnu_printf' format attribute [-Wmissing-format-attribute] Signed-off-by:
Daniel Borkmann <dborkman@redhat.com> Signed-off-by:
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Daniel Borkmann authored
Currently, in menuconfig, Netlink's new mmaped IO is the very first entry under the ``Networking support'' item and comes even before ``Networking options'': [ ] Netlink: mmaped IO Networking options ---> ... Lets move this into ``Networking options'' under netlink's Kconfig, since this might be more appropriate. Introduced by commit ccdfcc39 (``netlink: mmaped netlink: ring setup''). Signed-off-by:
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Neil Horman authored
Bart Van Assche recently reported a warning to me: <IRQ> [<ffffffff8103d79f>] warn_slowpath_common+0x7f/0xc0 [<ffffffff8103d7fa>] warn_slowpath_null+0x1a/0x20 [<ffffffff814761dd>] mutex_trylock+0x16d/0x180 [<ffffffff813968c9>] netpoll_poll_dev+0x49/0xc30 [<ffffffff8136a2d2>] ? __alloc_skb+0x82/0x2a0 [<ffffffff81397715>] netpoll_send_skb_on_dev+0x265/0x410 [<ffffffff81397c5a>] netpoll_send_udp+0x28a/0x3a0 [<ffffffffa0541843>] ? write_msg+0x53/0x110 [netconsole] [<ffffffffa05418bf>] write_msg+0xcf/0x110 [netconsole] [<ffffffff8103eba1>] call_console_drivers.constprop.17+0xa1/0x1c0 [<ffffffff8103fb76>] console_unlock+0x2d6/0x450 [<ffffffff8104011e>] vprintk_emit+0x1ee/0x510 [<ffffffff8146f9f6>] printk+0x4d/0x4f [<ffffffffa0004f1d>] scsi_print_command+0x7d/0xe0 [scsi_mod] This resulted from my commit ca99ca14 which introduced a mutex_trylock operation in a path that could execute in interrupt context. When mutex debugging is enabled, the above warns the user when we are in fact exectuting in interrupt context interrupt context. After some discussion, It seems that a semaphore is the proper mechanism to use here. While mutexes are defined to be unusable in interrupt context, no such condition exists for semaphores (save for the fact that the non blocking api calls, like up and down_trylock must be used when in irq context). Signed-off-by:
Neil Horman <nhorman@tuxdriver.com> Reported-by:
Bart Van Assche <bvanassche@acm.org> CC: Bart Van Assche <bvanassche@acm.org> CC: David Miller <davem@davemloft.net> CC: netdev@vger.kernel.org Signed-off-by:
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Pravin B Shelar authored
Commit f9c22888 (netlink: implement memory mapped recvmsg) increamented skb->users ref count twice for a dump op which does not look right. Following patch fixes that. CC: Patrick McHardy <kaber@trash.net> Signed-off-by:
Pravin B Shelar <pshelar@nicira.com> Signed-off-by:
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git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tileLinus Torvalds authored
Pull tile arch changes from Chris Metcalf: "These are some minor new feature work and other changes that didn't merit getting pushed up after the 3.9 merge window closed. There should be a lot more activity in the 3.11 merge window" * git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile: arch/tile: Fix syscall return value passed to tracepoint tile: comment assumption about __insn_mtspr for <asm/irqflags.h> tile: ns2cycles should use __raw_get_cpu_var arch: remove KCORE_ELF again [tile] tile: remove two outdated Kconfig entries tile: support atomic64_dec_if_positive() tile: support TIF_SYSCALL_TRACEPOINT; select HAVE_SYSCALL_TRACEPOINTS tile: Add definition of NR_syscalls tile: move declaration of sys_call_table to <asm/syscall.h> arch/tile: Enable HAVE_ARCH_TRACEHOOK arch/tile: Call tracehook_report_syscall_{entry,exit} in syscall trace
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