- 21 Jul, 2022 13 commits
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Gao Xiang authored
For the most cases, small pclusters can be decompressed with page arrays on stack. Try to leave both (de)compressed_pages on stack if possible as before. Acked-by:
Chao Yu <chao@kernel.org> Signed-off-by:
Gao Xiang <hsiangkao@linux.alibaba.com> Link: https://lore.kernel.org/r/20220715154203.48093-14-hsiangkao@linux.alibaba.com
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Gao Xiang authored
Let's introduce struct z_erofs_decompress_backend in order to pass on the decompression backend context between helper functions more easier and avoid too many arguments. Acked-by:
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Gao Xiang authored
In order to introduce multi-reference pclusters for compressed data deduplication, let's get rid of the global page array for now since it needs to be re-designed then at least. Acked-by:
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Gao Xiang authored
`enum z_erofs_collectmode' is really ambiguous, but I'm not quite sure if there are better naming, basically it's used to judge whether inplace I/O can be used due to the current status of pclusters in the chain. Rename it as `enum z_erofs_pclustermode' instead. Acked-by:
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Gao Xiang authored
Remove it since pagevec[] is no longer used. Acked-by:
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Gao Xiang authored
Since all decompressed offsets have been integrated to bvecs[], this patch avoids all sub-indexes so that page->private only includes a part count and an eio flag, thus in the future folio->private can have the same meaning. In addition, PG_error will not be used anymore after this patch and we're heading to use page->private (later folio->private) and page->mapping (later folio->mapping) only. Acked-by:
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Gao Xiang authored
Convert compressed_pages[] to bufvec in order to avoid using page->private to keep onlinepage_index (decompressed offset) for inplace I/O pages. In the future, we only rely on folio->private to keep a countdown to unlock folios and set folio_uptodate. Acked-by:
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Gao Xiang authored
`z_erofs_decompress_pcluster()' is too long therefore it'd be better to introduce another helper to parse compressed pages (or laterly, compressed bvecs.) BTW, since `compressed_bvecs' is too long as a part of the function name, `in_bvecs' is used here instead. Acked-by:
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Gao Xiang authored
Remove the old pagevec approach but keep z_erofs_page_type for now. It will be reworked in the following commits as well. Also rename Z_EROFS_NR_INLINE_PAGEVECS as Z_EROFS_INLINE_BVECS with the new value 2 since it's actually enough to bootstrap. Acked-by:
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Gao Xiang authored
For each pcluster, the total compressed buffers are determined in advance, yet the number of decompressed buffers actually vary. Too many decompressed pages can be recorded if one pcluster is highly compressed or its pcluster size is large. That takes extra memory footprints compared to uncompressed filesystems, especially a lot of I/O in flight on low-ended devices. Therefore, similar to inplace I/O, pagevec was introduced to reuse page cache to store these pointers in the time-sharing way since these pages are actually unused before decompressing. In order to make it more flexable, a cleaner bufvec is used to replace the old pagevec stuffs so that - Decompressed offsets can be stored inline, thus it can be used for the upcoming feature like compressed data deduplication. It's calculated by `page_offset(page) - map->m_la'; - Towards supporting large folios for compressed inodes since our final goal is to completely avoid page->private but use folio->private only for all page cache pages. Acked-by:
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Gao Xiang authored
`z_erofs_decompress_pcluster()' is too long therefore it'd be better to introduce another helper to parse decompressed pages (or laterly, decompressed bvecs.) BTW, since `decompressed_bvecs' is too long as a part of the function name, `out_bvecs' is used instead. Reviewed-by:
Yue Hu <huyue2@coolpad.com> Acked-by:
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Gao Xiang authored
Rearrange the code and get rid of all gotos. Reviewed-by:
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Gao Xiang authored
Since commit 5c6dcc57 ("erofs: get rid of `struct z_erofs_collector'"), these arguments can be dropped as well. No logic changes. Reviewed-by:
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- 08 Jul, 2022 2 commits
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Gao Xiang authored
Currently, vmap()s are avoided if physical addresses are consecutive for decompressed buffers. I observed that is very common for 4KiB pclusters since the numbers of decompressed pages are almost 2 or 3. However, such detection doesn't work for Highmem pages on 32-bit machines, let's fix it now. Reported-by:
Liu Jinbao <liujinbao1@xiaomi.com> Fixes: 7fc45dbc ("staging: erofs: introduce generic decompression backend") Link: https://lore.kernel.org/r/20220708101001.21242-1-hsiangkao@linux.alibaba.comSigned-off-by:
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Yuwen Chen authored
When the user mounts the erofs second times, the decompression thread may hung. The problem happens due to a sequence of steps like the following: 1) Task A called z_erofs_load_lzma_config which obtain all of the node from the z_erofs_lzma_head. 2) At this time, task B called the z_erofs_lzma_decompress and wanted to get a node. But the z_erofs_lzma_head was empty, the Task B had to sleep. 3) Task A release nodes and push nodes into the z_erofs_lzma_head. But task B was still sleeping. One example report when the hung happens: task:kworker/u3:1 state:D stack:14384 pid: 86 ppid: 2 flags:0x00004000 Workqueue: erofs_unzipd z_erofs_decompressqueue_work Call Trace: <TASK> __schedule+0x281/0x760 schedule+0x49/0xb0 z_erofs_lzma_decompress+0x4bc/0x580 ? cpu_core_flags+0x10/0x10 z_erofs_decompress_pcluster+0x49b/0xba0 ? __update_load_avg_se+0x2b0/0x330 ? __update_load_avg_se+0x2b0/0x330 ? update_load_avg+0x5f/0x690 ? update_load_avg+0x5f/0x690 ? set_next_entity+0xbd/0x110 ? _raw_spin_unlock+0xd/0x20 z_erofs_decompress_queue.isra.0+0x2e/0x50 z_erofs_decompressqueue_work+0x30/0x60 process_one_work+0x1d3/0x3a0 worker_thread+0x45/0x3a0 ? process_one_work+0x3a0/0x3a0 kthread+0xe2/0x110 ? kthread_complete_and_exit+0x20/0x20 ret_from_fork+0x22/0x30 </TASK> Signed-off-by:
Yuwen Chen <chenyuwen1@meizu.com> Fixes: 622ceadd ("erofs: lzma compression support") Reviewed-by:
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- 27 Jun, 2022 2 commits
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Jeffle Xu authored
Glad to contribute the fscache mode to erofs. Sincerely I recommend myself as the reviewer to maintain these codes. Signed-off-by:
Jeffle Xu <jefflexu@linux.alibaba.com> Acked-by:
Gao Xiang <xiang@kernel.org> Link: https://lore.kernel.org/r/20220606021103.89211-1-jefflexu@linux.alibaba.comSigned-off-by:
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Yue Hu authored
I have been doing some erofs patches. Now I have the time and would like to help with the reviews. Signed-off-by:
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- 26 Jun, 2022 23 commits
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Linus Torvalds authored
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git://git.kernel.org/pub/scm/linux/kernel/git/soc/socLinus Torvalds authored
Pull ARM SoC fixes from Arnd Bergmann: "A number of fixes have accumulated, but they are largely for harmless issues: - Several OF node leak fixes - A fix to the Exynos7885 UART clock description - DTS fixes to prevent boot failures on TI AM64 and J721s2 - Bus probe error handling fixes for Baikal-T1 - A fixup to the way STM32 SoCs use separate dts files for different firmware stacks - Multiple code fixes for Arm SCMI firmware, all dealing with robustness of the implementation - Multiple NXP i.MX devicetree fixes, addressing incorrect data in DT nodes - Three updates to the MAINTAINERS file, including Florian Fainelli taking over BCM283x/BCM2711 (Raspberry Pi) from Nicolas Saenz Julienne" * tag 'soc-fixes-5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (29 commits) ARM: dts: aspeed: nuvia: rename vendor nuvia to qcom arm: mach-spear: Add missing of_node_put() in time.c ARM: cns3xxx: Fix refcount leak in cns3xxx_init MAINTAINERS: Update email address arm64: dts: ti: k3-am64-main: Remove support for HS400 speed mode arm64: dts: ti: k3-j721s2: Fix overlapping GICD memory region ARM: dts: bcm2711-rpi-400: Fix GPIO line names bus: bt1-axi: Don't print error on -EPROBE_DEFER bus: bt1-apb: Don't print error on -EPROBE_DEFER ARM: Fix refcount leak in axxia_boot_secondary ARM: dts: stm32: move SCMI related nodes in a dedicated file for stm32mp15 soc: imx: imx8m-blk-ctrl: fix display clock for LCDIF2 power domain ARM: dts: imx6qdl-colibri: Fix capacitive touch reset polarity ARM: dts: imx6qdl: correct PU regulator ramp delay firmware: arm_scmi: Fix incorrect error propagation in scmi_voltage_descriptors_get firmware: arm_scmi: Avoid using extended string-buffers sizes if not necessary firmware: arm_scmi: Fix SENSOR_AXIS_NAME_GET behaviour when unsupported ARM: dts: imx7: Move hsic_phy power domain to HSIC PHY node soc: bcm: brcmstb: pm: pm-arm: Fix refcount leak in brcmstb_pm_probe MAINTAINERS: Update BCM2711/BCM2835 maintainer ... -
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mmLinus Torvalds authored
Pull hotfixes from Andrew Morton: "Minor things, mainly - mailmap updates, MAINTAINERS updates, etc. Fixes for this merge window: - fix for a damon boot hang, from SeongJae - fix for a kfence warning splat, from Jason Donenfeld - fix for zero-pfn pinning, from Alex Williamson - fix for fallocate hole punch clearing, from Mike Kravetz Fixes for previous releases: - fix for a performance regression, from Marcelo - fix for a hwpoisining BUG from zhenwei pi" * tag 'mm-hotfixes-stable-2022-06-26' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: mailmap: add entry for Christian Marangi mm/memory-failure: disable unpoison once hw error happens hugetlbfs: zero partial pages during fallocate hole punch mm: memcontrol: reference to tools/cgroup/memcg_slabinfo.py mm: re-allow pinning of zero pfns mm/kfence: select random number before taking raw lock MAINTAINERS: add maillist information for LoongArch MAINTAINERS: update MM tree references MAINTAINERS: update Abel Vesa's email MAINTAINERS: add MEMORY HOT(UN)PLUG section and add David as reviewer MAINTAINERS: add Miaohe Lin as a memory-failure reviewer mailmap: add alias for jarkko@profian.com mm/damon/reclaim: schedule 'damon_reclaim_timer' only after 'system_wq' is initialized kthread: make it clear that kthread_create_on_node() might be terminated by any fatal signal mm: lru_cache_disable: use synchronize_rcu_expedited mm/page_isolation.c: fix one kernel-doc comment
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Linus Torvalds authored
Merge tag 'perf-tools-fixes-for-v5.19-2022-06-26' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux Pull perf tools fixes from Arnaldo Carvalho de Melo: - Enable ignore_missing_thread in 'perf stat', enabling counting with '--pid' when threads disappear during counting session setup - Adjust output data offset for backward compatibility in 'perf inject' - Fix missing free in copy_kcore_dir() in 'perf inject' - Fix caching files with a wrong build ID - Sync drm, cpufeatures, vhost and svn headers with the kernel * tag 'perf-tools-fixes-for-v5.19-2022-06-26' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux: tools headers UAPI: Synch KVM's svm.h header with the kernel tools include UAPI: Sync linux/vhost.h with the kernel sources perf stat: Enable ignore_missing_thread perf inject: Adjust output data offset for backward compatibility perf trace beauty: Fix generation of errno id->str table on ALT Linux perf build-id: Fix caching files with a wrong build ID tools headers cpufeatures: Sync with the kernel sources tools headers UAPI: Sync drm/i915_drm.h with the kernel sources perf inject: Fix missing free in copy_kcore_dir()
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git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linuxLinus Torvalds authored
Pull btrfs fixes from David Sterba: - zoned relocation fixes: - fix critical section end for extent writeback, this could lead to out of order write - prevent writing to previous data relocation block group if space gets low - reflink fixes: - fix race between reflinking and ordered extent completion - proper error handling when block reserve migration fails - add missing inode iversion/mtime/ctime updates on each iteration when replacing extents - fix deadlock when running fsync/fiemap/commit at the same time - fix false-positive KCSAN report regarding pid tracking for read locks and data race - minor documentation update and link to new site * tag 'for-5.19-rc3-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux: Documentation: update btrfs list of features and link to readthedocs.io btrfs: fix deadlock with fsync+fiemap+transaction commit btrfs: don't set lock_owner when locking extent buffer for reading btrfs: zoned: fix critical section of relocation inode writeback btrfs: zoned: prevent allocation from previous data relocation BG btrfs: do not BUG_ON() on failure to migrate space when replacing extents btrfs: add missing inode updates on each iteration when replacing extents btrfs: fix race between reflinking and ordered extent completion -
git://git.infradead.org/users/hch/dma-mappingLinus Torvalds authored
Pull dma-mapping fix from Christoph Hellwig: - pass the correct size to dma_set_encrypted() when freeing memory (Dexuan Cui) * tag 'dma-mapping-5.19-2022-06-26' of git://git.infradead.org/users/hch/dma-mapping: dma-direct: use the correct size for dma_set_encrypted()
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git://git.kernel.org/pub/scm/linux/kernel/git/deller/linux-fbdevLinus Torvalds authored
Pull fbdev fixes from Helge Deller: "Two bug fixes for the pxa3xx and intelfb drivers: - pxa3xx-gcu: Fix integer overflow in pxa3xx_gcu_write - intelfb: Initialize value of stolen size The other changes are small cleanups, simplifications and documentation updates to the cirrusfb, skeletonfb, omapfb, intelfb, au1100fb and simplefb drivers" * tag 'for-5.19/fbdev-2' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/linux-fbdev: video: fbdev: omap: Remove duplicate 'the' in comment video: fbdev: omapfb: Align '*' in comment video: fbdev: simplefb: Check before clk_put() not needed video: fbdev: au1100fb: Drop unnecessary NULL ptr check video: fbdev: pxa3xx-gcu: Fix integer overflow in pxa3xx_gcu_write video: fbdev: skeletonfb: Convert to generic power management video: fbdev: cirrusfb: Remove useless reference to PCI power management video: fbdev: intelfb: Initialize value of stolen size video: fbdev: intelfb: Use aperture size from pci_resource_len video: fbdev: skeletonfb: Fix syntax errors in comments
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git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linuxLinus Torvalds authored
Pull parisc architecture fixes from Helge Deller: - enable ARCH_HAS_STRICT_MODULE_RWX to prevent a boot crash on c8000 machines - flush all mappings of a shared anonymous page on PA8800/8900 machines via flushing the whole data cache. This may slow down such machines but makes sure that the cache is consistent - Fix duplicate definition build error regarding fb_is_primary_device() * tag 'for-5.19/parisc-3' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux: parisc: Enable ARCH_HAS_STRICT_MODULE_RWX parisc: Fix flush_anon_page on PA8800/PA8900 parisc: align '*' in comment in math-emu code parisc/stifb: Fix fb_is_primary_device() only available with CONFIG_FB_STI
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https://github.com/jcmvbkbc/linux-xtensaLinus Torvalds authored
Pull xtensa fixes from Max Filippov: - fix OF reference leaks in xtensa arch code - replace '.bss' with '.section .bss' to fix entry.S build with old assembler * tag 'xtensa-20220626' of https://github.com/jcmvbkbc/linux-xtensa: xtensa: change '.bss' to '.section .bss' xtensa: xtfpga: Fix refcount leak bug in setup xtensa: Fix refcount leak bug in time.c
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git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linuxLinus Torvalds authored
Pull powerpc fixes from Michael Ellerman: - A fix for a CMA change that broke booting guests with > 2G RAM on Power8 hosts. - Fix the RTAS call filter to allow a special case that applications rely on. - A change to our execve path, to make the execve syscall exit tracepoint work. - Three fixes to wire up our various RNGs earlier in boot so they're available for use in the initial seeding in random_init(). - A build fix for when KASAN is enabled along with STRUCTLEAK_BYREF_ALL. Thanks to Andrew Donnellan, Aneesh Kumar K.V, Christophe Leroy, Jason Donenfeld, Nathan Lynch, Naveen N. Rao, Sathvika Vasireddy, Sumit Dubey2, Tyrel Datwyler, and Zi Yan. * tag 'powerpc-5.19-3' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: powerpc/powernv: wire up rng during setup_arch powerpc/prom_init: Fix build failure with GCC_PLUGIN_STRUCTLEAK_BYREF_ALL and KASAN powerpc/rtas: Allow ibm,platform-dump RTAS call with null buffer address powerpc: Enable execve syscall exit tracepoint powerpc/pseries: wire up rng during setup_arch() powerpc/microwatt: wire up rng during setup_arch() powerpc/mm: Move CMA reservations after initmem_init()
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Linus Torvalds authored
Merge tag 'kbuild-fixes-v5.19-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild Pull Kbuild fixes from Masahiro Yamada: - Fix modpost to detect EXPORT_SYMBOL marked as __init or__exit - Update the supported arch list in the LLVM document - Avoid the second link of vmlinux for CONFIG_TRIM_UNUSED_KSYMS - Avoid false __KSYM___this_module define in include/generated/autoksyms.h * tag 'kbuild-fixes-v5.19-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: kbuild: Ignore __this_module in gen_autoksyms.sh kbuild: link vmlinux only once for CONFIG_TRIM_UNUSED_KSYMS (2nd attempt) Documentation/llvm: Update Supported Arch table modpost: fix section mismatch check for exported init/exit sections
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git://git.kernel.org/pub/scm/linux/kernel/git/linkinjeon/exfatLinus Torvalds authored
Pull exfat fix from Namjae Jeon: - Use updated exfat_chain directly instead of snapshot values in rename. * tag 'exfat-for-5.19-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/linkinjeon/exfat: exfat: use updated exfat_chain directly during renaming
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git://git.samba.org/sfrench/cifs-2.6Linus Torvalds authored
Pull cifs client fixes from Steve French: "Fixes addressing important multichannel, and reconnect issues. Multichannel mounts when the server network interfaces changed, or ip addresses changed, uncovered problems, especially in reconnect, but the patches for this were held up until recently due to some lock conflicts that are now addressed. Included in this set of fixes: - three fixes relating to multichannel reconnect, dynamically adjusting the list of server interfaces to avoid problems during reconnect - a lock conflict fix related to the above - two important fixes for negotiate on secondary channels (null netname can unintentionally cause multichannel to be disabled to some servers) - a reconnect fix (reporting incorrect IP address in some cases)" * tag '5.19-rc3-smb3-client-fixes' of git://git.samba.org/sfrench/cifs-2.6: cifs: update cifs_ses::ip_addr after failover cifs: avoid deadlocks while updating iface cifs: periodically query network interfaces from server cifs: during reconnect, update interface if necessary cifs: change iface_list from array to sorted linked list smb3: use netname when available on secondary channels smb3: fix empty netname context on secondary channels -
Arnaldo Carvalho de Melo authored
To pick up the changes from: d5af44dd ("x86/sev: Provide support for SNP guest request NAEs") 0afb6b66 ("x86/sev: Use SEV-SNP AP creation to start secondary CPUs") dc3f3d24 ("x86/mm: Validate memory when changing the C-bit") cbd3d4f7 ("x86/sev: Check SEV-SNP features support") That gets these new SVM exit reasons: + { SVM_VMGEXIT_PSC, "vmgexit_page_state_change" }, \ + { SVM_VMGEXIT_GUEST_REQUEST, "vmgexit_guest_request" }, \ + { SVM_VMGEXIT_EXT_GUEST_REQUEST, "vmgexit_ext_guest_request" }, \ + { SVM_VMGEXIT_AP_CREATION, "vmgexit_ap_creation" }, \ + { SVM_VMGEXIT_HV_FEATURES, "vmgexit_hypervisor_feature" }, \ Addressing this perf build warning: Warning: Kernel ABI header at 'tools/arch/x86/include/uapi/asm/svm.h' differs from latest version at 'arch/x86/include/uapi/asm/svm.h' diff -u tools/arch/x86/include/uapi/asm/svm.h arch/x86/include/uapi/asm/svm.h This causes these changes: CC /tmp/build/perf-urgent/arch/x86/util/kvm-stat.o LD /tmp/build/perf-urgent/arch/x86/util/perf-in.o LD /tmp/build/perf-urgent/arch/x86/perf-in.o LD /tmp/build/perf-urgent/arch/perf-in.o LD /tmp/build/perf-urgent/perf-in.o LINK /tmp/build/perf-urgent/perf Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: Brijesh Singh <brijesh.singh@amd.com> Cc: Ian Rogers <irogers@google.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Tom Lendacky <thomas.lendacky@amd.com> Signed-off-by:
Arnaldo Carvalho de Melo <acme@redhat.com>
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Arnaldo Carvalho de Melo authored
To get the changes in: 84d7c8fd ("vhost-vdpa: introduce uAPI to set group ASID") 2d1fcb77 ("vhost-vdpa: uAPI to get virtqueue group id") a0c95f20 ("vhost-vdpa: introduce uAPI to get the number of address spaces") 3ace88bd ("vhost-vdpa: introduce uAPI to get the number of virtqueue groups") 175d493c ("vhost: move the backend feature bits to vhost_types.h") Silencing this perf build warning: Warning: Kernel ABI header at 'tools/include/uapi/linux/vhost.h' differs from latest version at 'include/uapi/linux/vhost.h' diff -u tools/include/uapi/linux/vhost.h include/uapi/linux/vhost.h To pick up these changes and support them: $ tools/perf/trace/beauty/vhost_virtio_ioctl.sh > before $ cp include/uapi/linux/vhost.h tools/include/uapi/linux/vhost.h $ tools/perf/trace/beauty/vhost_virtio_ioctl.sh > after $ diff -u before after --- before 2022-06-26 12:04:35.982003781 -0300 +++ after 2022-06-26 12:04:43.819972476 -0300 @@ -28,6 +28,7 @@ [0x74] = "VDPA_SET_CONFIG", [0x75] = "VDPA_SET_VRING_ENABLE", [0x77] = "VDPA_SET_CONFIG_CALL", + [0x7C] = "VDPA_SET_GROUP_ASID", }; static const char *vhost_virtio_ioctl_read_cmds[] = { [0x00] = "GET_FEATURES", @@ -39,5 +40,8 @@ [0x76] = "VDPA_GET_VRING_NUM", [0x78] = "VDPA_GET_IOVA_RANGE", [0x79] = "VDPA_GET_CONFIG_SIZE", + [0x7A] = "VDPA_GET_AS_NUM", + [0x7B] = "VDPA_GET_VRING_GROUP", [0x80] = "VDPA_GET_VQS_COUNT", + [0x81] = "VDPA_GET_GROUP_NUM", }; $ Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Gautam Dawar <gautam.dawar@xilinx.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Michael S. Tsirkin <mst@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Link: https://lore.kernel.org/lkml/Yrh3xMYbfeAD0MFL@kernel.orgSigned-off-by:
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Gang Li authored
perf already support ignore_missing_thread for -p, but not yet applied to `perf stat -p <pid>`. This patch enables ignore_missing_thread for `perf stat -p <pid>`. Committer notes: And here is a refresher about the 'ignore_missing_thread' knob, from a previous patch using it: ca800068 ("perf evsel: Enable ignore_missing_thread for pid option") --- While monitoring a multithread process with pid option, perf sometimes may return sys_perf_event_open failure with 3(No such process) if any of the process's threads die before we open the event. However, we want perf continue monitoring the remaining threads and do not exit with error. --- Signed-off-by:
Gang Li <ligang.bdlg@bytedance.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: https://lore.kernel.org/r/20220622030037.15005-1-ligang.bdlg@bytedance.comSigned-off-by:
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Raul Silvera authored
When 'perf inject' creates a new file, it reuses the data offset from the input file. If there has been a change on the size of the header, as happened in v5.12 -> v5.13, the new offsets will be wrong, resulting in a corrupted output file. This change adds the function perf_session__data_offset to compute the data offset based on the current header size, and uses that instead of the offset from the original input file. Signed-off-by:
Raul Silvera <rsilvera@google.com> Acked-by:
Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Athira Jajeev <atrajeev@linux.vnet.ibm.com> Cc: Colin Ian King <colin.king@intel.com> Cc: Dave Marchevsky <davemarchevsky@fb.com> Cc: Ian Rogers <irogers@google.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: https://lore.kernel.org/r/20220621152725.2668041-1-rsilvera@google.comSigned-off-by:
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Arnaldo Carvalho de Melo authored
For some reason using: cat <<EoFuncBegin static const char *errno_to_name__$arch(int err) { switch (err) { EoFuncBegin In tools/perf/trace/beauty/arch_errno_names.sh isn't working on ALT Linux sisyphus (development version), which could be some distro specific glitch, so just get this done in an alternative way that works everywhere while giving notice to the people working on that distro to try and figure our what really took place. Cc: Gleb Fotengauer-Malinovskiy <glebfm@altlinux.org> Signed-off-by: -
Adrian Hunter authored
Build ID events associate a file name with a build ID. However, when using perf inject, there is no guarantee that the file on the current machine at the current time has that build ID. Fix by comparing the build IDs and skip adding to the cache if they are different. Example: $ echo "int main() {return 0;}" > prog.c $ gcc -o prog prog.c $ perf record --buildid-all ./prog [ perf record: Woken up 1 times to write data ] [ perf record: Captured and wrote 0.019 MB perf.data ] $ file-buildid() { file $1 | awk -F= '{print $2}' | awk -F, '{print $1}' ; } $ file-buildid prog 444ad9be165d8058a48ce2ffb4e9f55854a3293e $ file-buildid ~/.debug/$(pwd)/prog/444ad9be165d8058a48ce2ffb4e9f55854a3293e/elf 444ad9be165d8058a48ce2ffb4e9f55854a3293e $ echo "int main() {return 1;}" > prog.c $ gcc -o prog prog.c $ file-buildid prog 885524d5aaa24008a3e2b06caa3ea95d013c0fc5 Before: $ perf buildid-cache --purge $(pwd)/prog $ perf inject -i perf.data -o junk $ file-buildid ~/.debug/$(pwd)/prog/444ad9be165d8058a48ce2ffb4e9f55854a3293e/elf 885524d5aaa24008a3e2b06caa3ea95d013c0fc5 $ After: $ perf buildid-cache --purge $(pwd)/prog $ perf inject -i perf.data -o junk $ file-buildid ~/.debug/$(pwd)/prog/444ad9be165d8058a48ce2ffb4e9f55854a3293e/elf $ Fixes: 454c407e ("perf: add perf-inject builtin") Signed-off-by: -
Arnaldo Carvalho de Melo authored
To pick the changes from: d6d0c7f6 ("x86/cpufeatures: Add PerfMonV2 feature bit") 296d5a17 ("KVM: SEV-ES: Use V_TSC_AUX if available instead of RDTSC/MSR_TSC_AUX intercepts") f3090339 ("x86/cpufeatures: Add virtual TSC_AUX feature bit") 8ad7e8f6 ("x86/fpu/xsave: Support XSAVEC in the kernel") 59bd54a8 ("x86/tdx: Detect running as a TDX guest in early boot") a77d41ac ("x86/cpufeatures: Add AMD Fam19h Branch Sampling feature") This only causes these perf files to be rebuilt: CC /tmp/build/perf/bench/mem-memcpy-x86-64-asm.o CC /tmp/build/perf/bench/mem-memset-x86-64-asm.o And addresses this perf build warning: Warning: Kernel ABI header at 'tools/arch/x86/include/asm/cpufeatures.h' differs from latest version at 'arch/x86/include/asm/cpufeatures.h' diff -u tools/arch/x86/include/asm/cpufeatures.h arch/x86/include/asm/cpufeatures.h Warning: Kernel ABI header at 'tools/arch/x86/include/asm/disabled-features.h' differs from latest version at 'arch/x86/include/asm/disabled-features.h' diff -u tools/arch/x86/include/asm/disabled-features.h arch/x86/include/asm/disabled-features.h Cc: Peter Zijlstra <peterz@infradead.org> Cc: Sandipan Das <sandipan.das@amd.com> Cc: Babu Moger <babu.moger@amd.com> Cc: Paolo Bonzini <pbonzini@redhat.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Dave Hansen <dave.hansen@linux.intel.com> Cc: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com> Cc: Stephane Eranian <eranian@google.com> Cc: Peter Zijlstra <peterz@infradead.org> Link: https://lore.kernel.org/lkml/YrDkgmwhLv+nKeOo@kernel.orgSigned-off-by:
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Arnaldo Carvalho de Melo authored
To pick up the changes in: ecf8eca5 ("drm/i915/xehp: Add compute engine ABI") 991b4de3 ("drm/i915/uapi: Add kerneldoc for engine class enum") c94fde8f ("drm/i915/uapi: Add DRM_I915_QUERY_GEOMETRY_SUBSLICES") 1c671ad7 ("drm/i915/doc: Link query items to their uapi structs") a2e54026 ("drm/i915/doc: Convert perf UAPI comments to kerneldoc") 462ac1cd ("drm/i915/doc: Convert drm_i915_query_topology_info comment to kerneldoc") 034d47b2 ("drm/i915/uapi: Document DRM_I915_QUERY_HWCONFIG_BLOB") 78e1fb31 ("drm/i915/uapi: Add query for hwconfig blob") That don't add any new ioctl, so no changes in tooling. This silences this perf build warning: Warning: Kernel ABI header at 'tools/include/uapi/drm/i915_drm.h' differs from latest version at 'include/uapi/drm/i915_drm.h' diff -u tools/include/uapi/drm/i915_drm.h include/uapi/drm/i915_drm.h Cc: John Harrison <John.C.Harrison@intel.com> Cc: Matt Atwood <matthew.s.atwood@intel.com> Cc: Matt Roper <matthew.d.roper@intel.com> Cc: Rodrigo Vivi <rodrigo.vivi@intel.com> Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Link: http://lore.kernel.org/lkml/YrDi4ALYjv9Mdocq@kernel.orgSigned-off-by:
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Adrian Hunter authored
Free string allocated by asprintf(). Fixes: d8fc0855 ("perf inject: Keep a copy of kcore_dir") Signed-off-by:
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Helge Deller authored
Fix a boot crash on a c8000 machine as reported by Dave. Basically it changes patch_map() to return an alias mapping to the to-be-patched code in order to prevent writing to write-protected memory. Signed-off-by:
Helge Deller <deller@gmx.de> Suggested-by:
John David Anglin <dave.anglin@bell.net> Cc: stable@vger.kernel.org # v5.2+ Link: https://lore.kernel.org/all/e8ec39e8-25f8-e6b4-b7ed-4cb23efc756e@bell.net/
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