- 02 Sep, 2013 11 commits
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Namhyung Kim authored
Some hardware events might not be supported on a system. Listing those events seems meaningless and confusing to users. Let's skip them. Before: $ perf list cache | wc -l 33 After: $ perf list cache | wc -l 27 Signed-off-by:
Namhyung Kim <namhyung@kernel.org> Cc: David Ahern <dsahern@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1377571313-14722-1-git-send-email-namhyung@kernel.orgSigned-off-by:
Arnaldo Carvalho de Melo <acme@redhat.com>
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Adrian Hunter authored
Add a test for the newly added PERF_COUNT_SW_DUMMY event. The test checks that tracking events continue when an event is disabled but a dummy software event is not disabled. Signed-off-by:
Adrian Hunter <adrian.hunter@intel.com> Acked-by:
Jiri Olsa <jolsa@redhat.com> Tested-by:
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Adrian Hunter authored
Add support for the new dummy software event PERF_COUNT_SW_DUMMY. Signed-off-by:
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Adrian Hunter authored
When an event is disabled the "tracking" events selected by the 'mmap', 'comm' and 'task' bits of struct perf_event_attr, are also disabled. However, the information those events provide is necessary to resolve symbols for when the main event is re-enabled. The "tracking" events can be kept enabled by putting them on another event, but that requires an event that otherwise does nothing. A new software event PERF_COUNT_SW_DUMMY is added for that purpose. Signed-off-by:
Peter Zijlstra <peterz@infradead.org> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1377975053-3811-2-git-send-email-adrian.hunter@intel.comSigned-off-by:
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Arnaldo Carvalho de Melo authored
That uses the arg mask mechanism just introduced to suppress ignored arguments according to the futex operation. Based on an initial patch from David Ahern that showed the need for some way to allow args to tell how many further args should be shown. Initial-patch-by:
David Ahern <dsahern@gmail.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-0k30it46r4hv5eanefbdmj5t@git.kernel.orgSigned-off-by:
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Arnaldo Carvalho de Melo authored
The futex syscall ignores some arguments according to the 'operation' arg, so allow arg formatters to mask those. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-abqrg3oldgfsdnltfrvso9f7@git.kernel.orgSigned-off-by:
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Joe Perches authored
Use the convenience function instead of __GFP_ZERO. Signed-off-by:
Joe Perches <joe@perches.com> Signed-off-by:
Ingo Molnar <mingo@kernel.org>
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Vince Weaver authored
If PERF_SAMPLE_BRANCH_STACK is enabled then samples are returned with the format { u64 from, to, flags } but the flags layout is not specified. This field has the type struct perf_branch_entry; move this definition into include/uapi/linux/perf_event.h so users can access these fields. This is similar to the existing inclusion of perf_mem_data_src in the include/uapi/linux/perf_event.h file. Signed-off-by:Vince Weaver <vincent.weaver@maine.edu> Acked-by:
Stephane Eranian <eranian@google.com> Signed-off-by:
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Stephane Eranian authored
Adds a new PERF_RECORD_MMAP2 record type which is essence an expanded version of PERF_RECORD_MMAP. Used to request mmap records with more information about the mapping, including device major, minor and the inode number and generation for mappings associated with files or shared memory segments. Works for code and data (with attr->mmap_data set). Existing PERF_RECORD_MMAP record is unmodified by this patch. Signed-off-by:
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Yan, Zheng authored
Compared to old atom, Silvermont has offcore and has more events that support PEBS. Signed-off-by:
Yan, Zheng <zheng.z.yan@intel.com> Reviewed-by:
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Yan, Zheng authored
Silvermont (22nm Atom) has two offcore response configuration MSRs, unlike other Intel CPU, its event code for MSR_OFFCORE_RSP_1 is 0x02b7. To avoid complicating intel_fixup_er(), use INTEL_UEVENT_EXTRA_REG to define MSR_OFFCORE_RSP_X. So intel_fixup_er() can find the event code for OFFCORE_RSP_N by x86_pmu.extra_regs[N].event. Signed-off-by:
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- 31 Aug, 2013 1 commit
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Ingo Molnar authored
Merge tag 'perf-core-for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core Pull perf/core improvements and fixes from Arnaldo Carvalho de Melo: * Tidy up sample parsing validation, from Adrian Hunter. * Make events stream always parsable by adding a new sample_type bit: PERF_SAMPLE_IDENTIFIER, that when requested will be always aat a fixed position in all PERF_RECORD_ records, from Adrian Hunter. * Add a sample parsing test, from Adrian Hunter. * Add option to 'perf trace' to analyze events in a file versus live, so that one can do: [root@zoo ~]# perf record -a -e raw_syscalls:* sleep 1 [ perf record: Woken up 0 times to write data ] [ perf record: Captured and wrote 25.150 MB perf.data (~1098836 samples) ] [root@zoo ~]# perf trace -i perf.data -e futex --duration 1 17.799 ( 1.020 ms): 7127 futex(uaddr: 0x7fff3f6c6674, op: 393, val: 1, utime: 0x7fff3f6c6470, ua 113.344 (95.429 ms): 7127 futex(uaddr: 0x7fff3f6c6674, op: 393, val: 1, utime: 0x7fff3f6c6470, uaddr2: 0x7fff3f6c6648, val3: 4294967 133.778 ( 1.042 ms): 18004 futex(uaddr: 0x7fff3f6c6674, op: 393, val: 1, utime: 0x7fff3f6c6470, uaddr2: 0x7fff3f6c6648, val3: 429496 [root@zoo ~]# From David Ahern. * Honor target pid / tid options in 'perf trace' when analyzing a file, from David Ahern. * Handle missing HUGEPAGE defines in the mmap beautifier in 'perf trace', from David Ahern. Signed-off-by:
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- 30 Aug, 2013 1 commit
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David Ahern authored
Needed for compile on Fedora 12 which goes back to the 2.6.32 kernel. Might be needed for RHEL6. I use F12 to compile static binaries for Wind River Linux 4.3. Signed-off-by:
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- 29 Aug, 2013 25 commits
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David Ahern authored
Allows capture of raw_syscall events for all processes or threads in a task and then analyzing specific ones. Signed-off-by:
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David Ahern authored
Allows capture of raw_syscall:* events and analyzed at a later time. v2: change -i option from inherit to input name for consistency with other perf commands Signed-off-by: -
David Ahern authored
Will be used by upcoming perf-trace replay option. Signed-off-by:
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Adrian Hunter authored
Add a test that checks that sample parsing is correctly implemented. Signed-off-by:
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Adrian Hunter authored
Add perf_event__sample_event_size() which can be used when synthesizing sample events to determine how big the resulting event will be, and therefore how much memory to allocate. Signed-off-by:
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Adrian Hunter authored
Expand perf_event__synthesize_sample() to handle all sample format bits. Signed-off-by:
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Adrian Hunter authored
And store the parsed value there. Note that the 'abi' is 0 (no registers), 1 (32-bit registers) or 2 (64-bit registers), but the registers are anyway copied one-by-one as 64-bit values onto the event i.e. see 'perf_output_sample_regs()' Acked-by:
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Adrian Hunter authored
Enable parsing of samples with sample format bit PERF_SAMPLE_IDENTIFIER. In addition, if the kernel supports it, prefer it to selecting PERF_SAMPLE_ID thereby allowing non-matching sample types. Signed-off-by:
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Adrian Hunter authored
perf_evlist__config() must be moved to a separate source file to avoid Python link errors when adding support for PERF_SAMPLE_IDENTIFIER. It is appropriate to do this because perf_evlist__config() is a helper function for event recording. It is used by tools to apply recording options to perf_evlist. It is not used by the Python API. Signed-off-by:
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Adrian Hunter authored
The event stream is not always parsable because the format of a sample is dependent on the sample_type of the selected event. When there is more than one selected event and the sample_types are not the same then parsing becomes problematic. A sample can be matched to its selected event using the ID that is allocated when the event is opened. Unfortunately, to get the ID from the sample means first parsing it. This patch adds a new sample format bit PERF_SAMPLE_IDENTIFER that puts the ID at a fixed position so that the ID can be retrieved without parsing the sample. For sample events, that is the first position immediately after the header. For non-sample events, that is the last position. In this respect parsing samples requires that the sample_type and ID values are recorded. For example, perf tools records struct perf_event_attr and the IDs within the perf.data file. Those must be read first before it is possible to parse samples found later in the perf.data file. Signed-off-by:
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Adrian Hunter authored
The ip_event struct assumes fixed positions for ip, pid and tid. That is no longer true with the addition of PERF_SAMPLE_IDENTIFIER. The information is anyway in struct sample, so use that instead. Signed-off-by:
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Adrian Hunter authored
Now that the sample parsing correctly checks data sizes there is no reason for it to be done again for callchains. Signed-off-by:
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Adrian Hunter authored
The size of data retrieved from a sample event must be validated to ensure it does not go past the end of the event. That was being done sporadically and without considering integer overflows. Signed-off-by:
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Adrian Hunter authored
Add a new parameter for 'pid' to machine__findnew_thread(). Change callers to pass 'pid' when it is known. Note that callers sometimes want to find the main thread which has the memory maps. The main thread has tid == pid so the usage in that case is: machine__findnew_thread(machine, pid, pid) whereas the usage to find the specific thread is: machine__findnew_thread(machine, pid, tid) Signed-off-by:
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Ingo Molnar authored
Merge tag 'perf-core-for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core Pull perf/core improvements and fixes from Arnaldo Carvalho de Melo: * Don't install scripting files files when perl/python support is disabled. * Support ! in -e expressions in 'perf trace', to filter a list of syscalls. * Add --verbose and -o/--output options to 'perf trace'. * Introduce better formatting of syscall arguments in 'perf trace', including so far beautifiers for mmap, madvise, syscall return values. * Fixup jobserver setup in libtraceevent makefile. * Debug improvements from Adrian Hunter. * Try to increase the file descriptor limits on EMFILE, from Andi Kleen. * Remove unused force option in 'perf kvm', from David Ahern. * Make 'perf trace' command line arguments consistent with 'perf record', from David Ahern. * Fix correlation of samples coming after PERF_RECORD_EXIT event, from David Ahern. Signed-off-by:
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Ingo Molnar authored
Pick up the latest upstream fixes. Signed-off-by: -
Linus Torvalds authored
Merge fixes from Andrew Morton: "Five fixes. err, make that six. let me try again" * emailed patches from Andrew Morton <akpm@linux-foundation.org>: fs/ocfs2/super.c: Use bigger nodestr to accomodate 32-bit node numbers memcg: check that kmem_cache has memcg_params before accessing it drivers/base/memory.c: fix show_mem_removable() to handle missing sections IPC: bugfix for msgrcv with msgtyp < 0 Omnikey Cardman 4000: pull in ioctl.h in user header timer_list: correct the iterator for timer_list
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Goldwyn Rodrigues authored
While using pacemaker/corosync, the node numbers are generated using IP address as opposed to serial node number generation. This may not fit in a 8-byte string. Use a bigger string to print the complete node number. Signed-off-by:
Goldwyn Rodrigues <rgoldwyn@suse.com> Cc: Mark Fasheh <mfasheh@suse.com> Cc: Joel Becker <jlbec@evilplan.org> Signed-off-by:
Andrew Morton <akpm@linux-foundation.org> Signed-off-by:
Linus Torvalds <torvalds@linux-foundation.org>
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Andrey Vagin authored
If the system had a few memory groups and all of them were destroyed, memcg_limited_groups_array_size has non-zero value, but all new caches are created without memcg_params, because memcg_kmem_enabled() returns false. We try to enumirate child caches in a few places and all of them are potentially dangerous. For example my kernel is compiled with CONFIG_SLAB and it crashed when I tryed to mount a NFS share after a few experiments with kmemcg. BUG: unable to handle kernel NULL pointer dereference at 0000000000000008 IP: [<ffffffff8118166a>] do_tune_cpucache+0x8a/0xd0 PGD b942a067 PUD b999f067 PMD 0 Oops: 0000 [#1] SMP Modules linked in: fscache(+) ip6table_filter ip6_tables iptable_filter ip_tables i2c_piix4 pcspkr virtio_net virtio_balloon i2c_core floppy CPU: 0 PID: 357 Comm: modprobe Not tainted 3.11.0-rc7+ #59 Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 task: ffff8800b9f98240 ti: ffff8800ba32e000 task.ti: ffff8800ba32e000 RIP: 0010:[<ffffffff8118166a>] [<ffffffff8118166a>] do_tune_cpucache+0x8a/0xd0 RSP: 0018:ffff8800ba32fb70 EFLAGS: 00010246 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000006 RDX: 0000000000000000 RSI: ffff8800b9f98910 RDI: 0000000000000246 RBP: ffff8800ba32fba0 R08: 0000000000000002 R09: 0000000000000004 R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000010 R13: 0000000000000008 R14: 00000000000000d0 R15: ffff8800375d0200 FS: 00007f55f1378740(0000) GS:ffff8800bfa00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b CR2: 00007f24feba57a0 CR3: 0000000037b51000 CR4: 00000000000006f0 Call Trace: enable_cpucache+0x49/0x100 setup_cpu_cache+0x215/0x280 __kmem_cache_create+0x2fa/0x450 kmem_cache_create_memcg+0x214/0x350 kmem_cache_create+0x2b/0x30 fscache_init+0x19b/0x230 [fscache] do_one_initcall+0xfa/0x1b0 load_module+0x1c41/0x26d0 SyS_finit_module+0x86/0xb0 system_call_fastpath+0x16/0x1b Signed-off-by:Andrey Vagin <avagin@openvz.org> Cc: Pekka Enberg <penberg@kernel.org> Cc: Christoph Lameter <cl@linux.com> Cc: Glauber Costa <glommer@openvz.org> Cc: Joonsoo Kim <js1304@gmail.com> Cc: Michal Hocko <mhocko@suse.cz> Cc: Johannes Weiner <hannes@cmpxchg.org> Cc: <stable@vger.kernel.org> Signed-off-by:
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Russ Anderson authored
"cat /sys/devices/system/memory/memory*/removable" crashed the system. The problem is that show_mem_removable() is passing a bad pfn to is_mem_section_removable(), which causes if (!node_online(page_to_nid(page))) to blow up. Why is it passing in a bad pfn? The reason is that show_mem_removable() will loop sections_per_block times. sections_per_block is 16, but mem->section_count is 8, indicating holes in this memory block. Checking that the memory section is present before checking to see if the memory section is removable fixes the problem. harp5-sys:~ # cat /sys/devices/system/memory/memory*/removable 0 1 1 1 1 1 1 1 1 1 1 1 1 1 BUG: unable to handle kernel paging request at ffffea00c3200000 IP: [<ffffffff81117ed1>] is_pageblock_removable_nolock+0x1/0x90 PGD 83ffd4067 PUD 37bdfce067 PMD 0 Oops: 0000 [#1] SMP Modules linked in: autofs4 binfmt_misc rdma_ucm rdma_cm iw_cm ib_addr ib_srp scsi_transport_srp scsi_tgt ib_ipoib ib_cm ib_uverbs ib_umad iw_cxgb3 cxgb3 mdio mlx4_en mlx4_ib ib_sa mlx4_core ib_mthca ib_mad ib_core fuse nls_iso8859_1 nls_cp437 vfat fat joydev loop hid_generic usbhid hid hwperf(O) numatools(O) dm_mod iTCO_wdt ipv6 iTCO_vendor_support igb i2c_i801 ioatdma i2c_algo_bit ehci_pci pcspkr lpc_ich i2c_core ehci_hcd ptp sg mfd_core dca rtc_cmos pps_core mperf button xhci_hcd sd_mod crc_t10dif usbcore usb_common scsi_dh_emc scsi_dh_hp_sw scsi_dh_alua scsi_dh_rdac scsi_dh gru(O) xvma(O) xfs crc32c libcrc32c thermal sata_nv processor piix mptsas mptscsih scsi_transport_sas mptbase megaraid_sas fan thermal_sys hwmon ext3 jbd ata_piix ahci libahci libata scsi_mod CPU: 4 PID: 5991 Comm: cat Tainted: G O 3.11.0-rc5-rja-uv+ #10 Hardware name: SGI UV2000/ROMLEY, BIOS SGI UV 2000/3000 series BIOS 01/15/2013 task: ffff88081f034580 ti: ffff880820022000 task.ti: ffff880820022000 RIP: 0010:[<ffffffff81117ed1>] [<ffffffff81117ed1>] is_pageblock_removable_nolock+0x1/0x90 RSP: 0018:ffff880820023df8 EFLAGS: 00010287 RAX: 0000000000040000 RBX: ffffea00c3200000 RCX: 0000000000000004 RDX: ffffea00c30b0000 RSI: 00000000001c0000 RDI: ffffea00c3200000 RBP: ffff880820023e38 R08: 0000000000000000 R09: 0000000000000001 R10: 0000000000000000 R11: 0000000000000001 R12: ffffea00c33c0000 R13: 0000160000000000 R14: 6db6db6db6db6db7 R15: 0000000000000001 FS: 00007ffff7fb2700(0000) GS:ffff88083fc80000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffea00c3200000 CR3: 000000081b954000 CR4: 00000000000407e0 Call Trace: show_mem_removable+0x41/0x70 dev_attr_show+0x2a/0x60 sysfs_read_file+0xf7/0x1c0 vfs_read+0xc8/0x130 SyS_read+0x5d/0xa0 system_call_fastpath+0x16/0x1b Signed-off-by:Russ Anderson <rja@sgi.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com> Cc: Yinghai Lu <yinghai@kernel.org> Reviewed-by:
Yasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com> Cc: <stable@vger.kernel.org> Signed-off-by:
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Svenning Sørensen authored
According to 'man msgrcv': "If msgtyp is less than 0, the first message of the lowest type that is less than or equal to the absolute value of msgtyp shall be received." Bug: The kernel only returns a message if its type is 1; other messages with type < abs(msgtype) will never get returned. Fix: After having traversed the list to find the first message with the lowest type, we need to actually return that message. This regression was introduced by commit daaf74cf ("ipc: refactor msg list search into separate function") Signed-off-by:
Svenning Soerensen <sss@secomea.dk> Reviewed-by:
Peter Hurley <peter@hurleysoftware.com> Cc: <stable@vger.kernel.org> Signed-off-by:
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Mike Frysinger authored
This file uses the ioctl helpers (_IOR/_IOW/etc...), so include ioctl.h for the definitions. Signed-off-by:
Mike Frysinger <vapier@gentoo.org> Cc: Harald Welte <laforge@gnumonks.org> Signed-off-by:
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Nathan Zimmer authored
Correct an issue with /proc/timer_list reported by Holger. When reading from the proc file with a sufficiently small buffer, 2k so not really that small, there was one could get hung trying to read the file a chunk at a time. The timer_list_start function failed to account for the possibility that the offset was adjusted outside the timer_list_next. Signed-off-by:
Nathan Zimmer <nzimmer@sgi.com> Reported-by:
Holger Hans Peter Freyther <holger@freyther.de> Cc: John Stultz <john.stultz@linaro.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Berke Durak <berke.durak@xiphos.com> Cc: Jeff Layton <jlayton@redhat.com> Tested-by:
Al Viro <viro@zeniv.linux.org.uk> Cc: <stable@vger.kernel.org> # 3.10.x Signed-off-by:
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Waiman Long authored
This just replaces the dentry count/lock combination with the lockref structure that contains both a count and a spinlock, and does the mechanical conversion to use the lockref infrastructure. There are no semantic changes here, it's purely syntactic. The reference lockref implementation uses the spinlock exactly the same way that the old dcache code did, and the bulk of this patch is just expanding the internal "d_count" use in the dcache code to use "d_lockref.count" instead. This is purely preparation for the real change to make the reference count updates be lockless during the 3.12 merge window. [ As with the previous commit, this is a rewritten version of a concept originally from Waiman, so credit goes to him, blame for any errors goes to me. Waiman's patch had some semantic differences for taking advantage of the lockless update in dget_parent(), while this patch is intentionally a pure search-and-replace change with no semantic changes. - Linus ] Signed-off-by:
Waiman Long <Waiman.Long@hp.com> Signed-off-by:
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Waiman Long authored
This introduces a new "lockref" structure that supports the concept of lockless updates of reference counts that still honor an attached spinlock. NOTE! This reference implementation is not the optimized lockless version, rather it is the fallback implementation using standard spinlocks. The actual optimized versions will be merged into 3.12, but I wanted to get the infrastructure in place and document the new interfaces. [ Also note that this particular commit is drastically cut-down minimal version of the original patch by Waiman. In order to properly credit the original author I'm marking Waiman as the author here, but in the end this patch bears little resemblance to the patch by Waiman. So blame any errors on me editing things down to the point where I can introduce the infrastructure before the merge window for 3.12 actually opens. - Linus ] Signed-off-by:
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- 28 Aug, 2013 1 commit
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Linus Torvalds authored
This reverts commit bb2314b4. It wasn't necessarily wrong per se, but we're still busily discussing the exact details of this all, so I'm going to revert it for now. It's true that you can already do flink() through /proc and that flink() isn't new. But as Brad Spengler points out, some secure environments do not mount proc, and flink adds a new interface that can avoid path lookup of the source for those kinds of environments. We may re-do this (and even mark it for stable backporting back in 3.11 and possibly earlier) once the whole discussion about the interface is done. Cc: Andy Lutomirski <luto@amacapital.net> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Oleg Nesterov <oleg@redhat.com> Cc: Brad Spengler <spender@grsecurity.net> Signed-off-by:
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- 27 Aug, 2013 1 commit
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git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmapLinus Torvalds authored
Pull regmap fixes from Mark Brown: "Two changes here: - Fix a bug in the rbtree code which could cause it to create two different cache entries for the same register by adding a single register at a time to the cache. This isn't awesome for performance but it's non-invasive which we need for this late in the release cycle and the I/O costs we're trying to avoid are high. - Add another header used in the !CONFIG_REGMAP stubs where we had been relying on implicit inclusion" * tag 'regmap-v3.11-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap: regmap: rbtree: Fix overlapping rbnodes. regmap: Add another missing header for !CONFIG_REGMAP stubs
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