1. 29 12月, 2018 10 次提交
  2. 31 10月, 2018 3 次提交
    • M
      mm: remove include/linux/bootmem.h · 57c8a661
      Mike Rapoport 提交于
      Move remaining definitions and declarations from include/linux/bootmem.h
      into include/linux/memblock.h and remove the redundant header.
      
      The includes were replaced with the semantic patch below and then
      semi-automated removal of duplicated '#include <linux/memblock.h>
      
      @@
      @@
      - #include <linux/bootmem.h>
      + #include <linux/memblock.h>
      
      [sfr@canb.auug.org.au: dma-direct: fix up for the removal of linux/bootmem.h]
        Link: http://lkml.kernel.org/r/20181002185342.133d1680@canb.auug.org.au
      [sfr@canb.auug.org.au: powerpc: fix up for removal of linux/bootmem.h]
        Link: http://lkml.kernel.org/r/20181005161406.73ef8727@canb.auug.org.au
      [sfr@canb.auug.org.au: x86/kaslr, ACPI/NUMA: fix for linux/bootmem.h removal]
        Link: http://lkml.kernel.org/r/20181008190341.5e396491@canb.auug.org.au
      Link: http://lkml.kernel.org/r/1536927045-23536-30-git-send-email-rppt@linux.vnet.ibm.comSigned-off-by: NMike Rapoport <rppt@linux.vnet.ibm.com>
      Signed-off-by: NStephen Rothwell <sfr@canb.auug.org.au>
      Acked-by: NMichal Hocko <mhocko@suse.com>
      Cc: Catalin Marinas <catalin.marinas@arm.com>
      Cc: Chris Zankel <chris@zankel.net>
      Cc: "David S. Miller" <davem@davemloft.net>
      Cc: Geert Uytterhoeven <geert@linux-m68k.org>
      Cc: Greentime Hu <green.hu@gmail.com>
      Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
      Cc: Guan Xuetao <gxt@pku.edu.cn>
      Cc: Ingo Molnar <mingo@redhat.com>
      Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
      Cc: Jonas Bonn <jonas@southpole.se>
      Cc: Jonathan Corbet <corbet@lwn.net>
      Cc: Ley Foon Tan <lftan@altera.com>
      Cc: Mark Salter <msalter@redhat.com>
      Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
      Cc: Matt Turner <mattst88@gmail.com>
      Cc: Michael Ellerman <mpe@ellerman.id.au>
      Cc: Michal Simek <monstr@monstr.eu>
      Cc: Palmer Dabbelt <palmer@sifive.com>
      Cc: Paul Burton <paul.burton@mips.com>
      Cc: Richard Kuo <rkuo@codeaurora.org>
      Cc: Richard Weinberger <richard@nod.at>
      Cc: Rich Felker <dalias@libc.org>
      Cc: Russell King <linux@armlinux.org.uk>
      Cc: Serge Semin <fancer.lancer@gmail.com>
      Cc: Thomas Gleixner <tglx@linutronix.de>
      Cc: Tony Luck <tony.luck@intel.com>
      Cc: Vineet Gupta <vgupta@synopsys.com>
      Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
      Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
      Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
      57c8a661
    • M
      memblock: replace BOOTMEM_ALLOC_* with MEMBLOCK variants · 97ad1087
      Mike Rapoport 提交于
      Drop BOOTMEM_ALLOC_ACCESSIBLE and BOOTMEM_ALLOC_ANYWHERE in favor of
      identical MEMBLOCK definitions.
      
      Link: http://lkml.kernel.org/r/1536927045-23536-29-git-send-email-rppt@linux.vnet.ibm.comSigned-off-by: NMike Rapoport <rppt@linux.vnet.ibm.com>
      Acked-by: NMichal Hocko <mhocko@suse.com>
      Cc: Catalin Marinas <catalin.marinas@arm.com>
      Cc: Chris Zankel <chris@zankel.net>
      Cc: "David S. Miller" <davem@davemloft.net>
      Cc: Geert Uytterhoeven <geert@linux-m68k.org>
      Cc: Greentime Hu <green.hu@gmail.com>
      Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
      Cc: Guan Xuetao <gxt@pku.edu.cn>
      Cc: Ingo Molnar <mingo@redhat.com>
      Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
      Cc: Jonas Bonn <jonas@southpole.se>
      Cc: Jonathan Corbet <corbet@lwn.net>
      Cc: Ley Foon Tan <lftan@altera.com>
      Cc: Mark Salter <msalter@redhat.com>
      Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
      Cc: Matt Turner <mattst88@gmail.com>
      Cc: Michael Ellerman <mpe@ellerman.id.au>
      Cc: Michal Simek <monstr@monstr.eu>
      Cc: Palmer Dabbelt <palmer@sifive.com>
      Cc: Paul Burton <paul.burton@mips.com>
      Cc: Richard Kuo <rkuo@codeaurora.org>
      Cc: Richard Weinberger <richard@nod.at>
      Cc: Rich Felker <dalias@libc.org>
      Cc: Russell King <linux@armlinux.org.uk>
      Cc: Serge Semin <fancer.lancer@gmail.com>
      Cc: Thomas Gleixner <tglx@linutronix.de>
      Cc: Tony Luck <tony.luck@intel.com>
      Cc: Vineet Gupta <vgupta@synopsys.com>
      Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
      Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
      Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
      97ad1087
    • M
      memblock: remove _virt from APIs returning virtual address · eb31d559
      Mike Rapoport 提交于
      The conversion is done using
      
      sed -i 's@memblock_virt_alloc@memblock_alloc@g' \
      	$(git grep -l memblock_virt_alloc)
      
      Link: http://lkml.kernel.org/r/1536927045-23536-8-git-send-email-rppt@linux.vnet.ibm.comSigned-off-by: NMike Rapoport <rppt@linux.vnet.ibm.com>
      Cc: Catalin Marinas <catalin.marinas@arm.com>
      Cc: Chris Zankel <chris@zankel.net>
      Cc: "David S. Miller" <davem@davemloft.net>
      Cc: Geert Uytterhoeven <geert@linux-m68k.org>
      Cc: Greentime Hu <green.hu@gmail.com>
      Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
      Cc: Guan Xuetao <gxt@pku.edu.cn>
      Cc: Ingo Molnar <mingo@redhat.com>
      Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
      Cc: Jonas Bonn <jonas@southpole.se>
      Cc: Jonathan Corbet <corbet@lwn.net>
      Cc: Ley Foon Tan <lftan@altera.com>
      Cc: Mark Salter <msalter@redhat.com>
      Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
      Cc: Matt Turner <mattst88@gmail.com>
      Cc: Michael Ellerman <mpe@ellerman.id.au>
      Cc: Michal Hocko <mhocko@suse.com>
      Cc: Michal Simek <monstr@monstr.eu>
      Cc: Palmer Dabbelt <palmer@sifive.com>
      Cc: Paul Burton <paul.burton@mips.com>
      Cc: Richard Kuo <rkuo@codeaurora.org>
      Cc: Richard Weinberger <richard@nod.at>
      Cc: Rich Felker <dalias@libc.org>
      Cc: Russell King <linux@armlinux.org.uk>
      Cc: Serge Semin <fancer.lancer@gmail.com>
      Cc: Thomas Gleixner <tglx@linutronix.de>
      Cc: Tony Luck <tony.luck@intel.com>
      Cc: Vineet Gupta <vgupta@synopsys.com>
      Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
      Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
      Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
      eb31d559
  3. 27 10月, 2018 1 次提交
  4. 18 8月, 2018 1 次提交
    • A
      kernel/memremap, kasan: make ZONE_DEVICE with work with KASAN · 0207df4f
      Andrey Ryabinin 提交于
      KASAN learns about hotadded memory via the memory hotplug notifier.
      devm_memremap_pages() intentionally skips calling memory hotplug
      notifiers.  So KASAN doesn't know anything about new memory added by
      devm_memremap_pages().  This causes a crash when KASAN tries to access
      non-existent shadow memory:
      
       BUG: unable to handle kernel paging request at ffffed0078000000
       RIP: 0010:check_memory_region+0x82/0x1e0
       Call Trace:
        memcpy+0x1f/0x50
        pmem_do_bvec+0x163/0x720
        pmem_make_request+0x305/0xac0
        generic_make_request+0x54f/0xcf0
        submit_bio+0x9c/0x370
        submit_bh_wbc+0x4c7/0x700
        block_read_full_page+0x5ef/0x870
        do_read_cache_page+0x2b8/0xb30
        read_dev_sector+0xbd/0x3f0
        read_lba.isra.0+0x277/0x670
        efi_partition+0x41a/0x18f0
        check_partition+0x30d/0x5e9
        rescan_partitions+0x18c/0x840
        __blkdev_get+0x859/0x1060
        blkdev_get+0x23f/0x810
        __device_add_disk+0x9c8/0xde0
        pmem_attach_disk+0x9a8/0xf50
        nvdimm_bus_probe+0xf3/0x3c0
        driver_probe_device+0x493/0xbd0
        bus_for_each_drv+0x118/0x1b0
        __device_attach+0x1cd/0x2b0
        bus_probe_device+0x1ac/0x260
        device_add+0x90d/0x1380
        nd_async_device_register+0xe/0x50
        async_run_entry_fn+0xc3/0x5d0
        process_one_work+0xa0a/0x1810
        worker_thread+0x87/0xe80
        kthread+0x2d7/0x390
        ret_from_fork+0x3a/0x50
      
      Add kasan_add_zero_shadow()/kasan_remove_zero_shadow() - post mm_init()
      interface to map/unmap kasan_zero_page at requested virtual addresses.
      And use it to add/remove the shadow memory for hotplugged/unplugged
      device memory.
      
      Link: http://lkml.kernel.org/r/20180629164932.740-1-aryabinin@virtuozzo.com
      Fixes: 41e94a85 ("add devm_memremap_pages")
      Signed-off-by: NAndrey Ryabinin <aryabinin@virtuozzo.com>
      Reported-by: NDave Chinner <david@fromorbit.com>
      Reviewed-by: NDan Williams <dan.j.williams@intel.com>
      Tested-by: NDan Williams <dan.j.williams@intel.com>
      Cc: Dmitry Vyukov <dvyukov@google.com>
      Cc: Alexander Potapenko <glider@google.com>
      Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
      Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
      0207df4f
  5. 04 7月, 2018 1 次提交
  6. 26 5月, 2018 3 次提交
  7. 06 4月, 2018 2 次提交
  8. 14 2月, 2018 1 次提交
  9. 07 2月, 2018 8 次提交
  10. 29 11月, 2017 1 次提交
  11. 16 11月, 2017 1 次提交
  12. 02 11月, 2017 1 次提交
    • G
      License cleanup: add SPDX GPL-2.0 license identifier to files with no license · b2441318
      Greg Kroah-Hartman 提交于
      Many source files in the tree are missing licensing information, which
      makes it harder for compliance tools to determine the correct license.
      
      By default all files without license information are under the default
      license of the kernel, which is GPL version 2.
      
      Update the files which contain no license information with the 'GPL-2.0'
      SPDX license identifier.  The SPDX identifier is a legally binding
      shorthand, which can be used instead of the full boiler plate text.
      
      This patch is based on work done by Thomas Gleixner and Kate Stewart and
      Philippe Ombredanne.
      
      How this work was done:
      
      Patches were generated and checked against linux-4.14-rc6 for a subset of
      the use cases:
       - file had no licensing information it it.
       - file was a */uapi/* one with no licensing information in it,
       - file was a */uapi/* one with existing licensing information,
      
      Further patches will be generated in subsequent months to fix up cases
      where non-standard license headers were used, and references to license
      had to be inferred by heuristics based on keywords.
      
      The analysis to determine which SPDX License Identifier to be applied to
      a file was done in a spreadsheet of side by side results from of the
      output of two independent scanners (ScanCode & Windriver) producing SPDX
      tag:value files created by Philippe Ombredanne.  Philippe prepared the
      base worksheet, and did an initial spot review of a few 1000 files.
      
      The 4.13 kernel was the starting point of the analysis with 60,537 files
      assessed.  Kate Stewart did a file by file comparison of the scanner
      results in the spreadsheet to determine which SPDX license identifier(s)
      to be applied to the file. She confirmed any determination that was not
      immediately clear with lawyers working with the Linux Foundation.
      
      Criteria used to select files for SPDX license identifier tagging was:
       - Files considered eligible had to be source code files.
       - Make and config files were included as candidates if they contained >5
         lines of source
       - File already had some variant of a license header in it (even if <5
         lines).
      
      All documentation files were explicitly excluded.
      
      The following heuristics were used to determine which SPDX license
      identifiers to apply.
      
       - when both scanners couldn't find any license traces, file was
         considered to have no license information in it, and the top level
         COPYING file license applied.
      
         For non */uapi/* files that summary was:
      
         SPDX license identifier                            # files
         ---------------------------------------------------|-------
         GPL-2.0                                              11139
      
         and resulted in the first patch in this series.
      
         If that file was a */uapi/* path one, it was "GPL-2.0 WITH
         Linux-syscall-note" otherwise it was "GPL-2.0".  Results of that was:
      
         SPDX license identifier                            # files
         ---------------------------------------------------|-------
         GPL-2.0 WITH Linux-syscall-note                        930
      
         and resulted in the second patch in this series.
      
       - if a file had some form of licensing information in it, and was one
         of the */uapi/* ones, it was denoted with the Linux-syscall-note if
         any GPL family license was found in the file or had no licensing in
         it (per prior point).  Results summary:
      
         SPDX license identifier                            # files
         ---------------------------------------------------|------
         GPL-2.0 WITH Linux-syscall-note                       270
         GPL-2.0+ WITH Linux-syscall-note                      169
         ((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause)    21
         ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause)    17
         LGPL-2.1+ WITH Linux-syscall-note                      15
         GPL-1.0+ WITH Linux-syscall-note                       14
         ((GPL-2.0+ WITH Linux-syscall-note) OR BSD-3-Clause)    5
         LGPL-2.0+ WITH Linux-syscall-note                       4
         LGPL-2.1 WITH Linux-syscall-note                        3
         ((GPL-2.0 WITH Linux-syscall-note) OR MIT)              3
         ((GPL-2.0 WITH Linux-syscall-note) AND MIT)             1
      
         and that resulted in the third patch in this series.
      
       - when the two scanners agreed on the detected license(s), that became
         the concluded license(s).
      
       - when there was disagreement between the two scanners (one detected a
         license but the other didn't, or they both detected different
         licenses) a manual inspection of the file occurred.
      
       - In most cases a manual inspection of the information in the file
         resulted in a clear resolution of the license that should apply (and
         which scanner probably needed to revisit its heuristics).
      
       - When it was not immediately clear, the license identifier was
         confirmed with lawyers working with the Linux Foundation.
      
       - If there was any question as to the appropriate license identifier,
         the file was flagged for further research and to be revisited later
         in time.
      
      In total, over 70 hours of logged manual review was done on the
      spreadsheet to determine the SPDX license identifiers to apply to the
      source files by Kate, Philippe, Thomas and, in some cases, confirmation
      by lawyers working with the Linux Foundation.
      
      Kate also obtained a third independent scan of the 4.13 code base from
      FOSSology, and compared selected files where the other two scanners
      disagreed against that SPDX file, to see if there was new insights.  The
      Windriver scanner is based on an older version of FOSSology in part, so
      they are related.
      
      Thomas did random spot checks in about 500 files from the spreadsheets
      for the uapi headers and agreed with SPDX license identifier in the
      files he inspected. For the non-uapi files Thomas did random spot checks
      in about 15000 files.
      
      In initial set of patches against 4.14-rc6, 3 files were found to have
      copy/paste license identifier errors, and have been fixed to reflect the
      correct identifier.
      
      Additionally Philippe spent 10 hours this week doing a detailed manual
      inspection and review of the 12,461 patched files from the initial patch
      version early this week with:
       - a full scancode scan run, collecting the matched texts, detected
         license ids and scores
       - reviewing anything where there was a license detected (about 500+
         files) to ensure that the applied SPDX license was correct
       - reviewing anything where there was no detection but the patch license
         was not GPL-2.0 WITH Linux-syscall-note to ensure that the applied
         SPDX license was correct
      
      This produced a worksheet with 20 files needing minor correction.  This
      worksheet was then exported into 3 different .csv files for the
      different types of files to be modified.
      
      These .csv files were then reviewed by Greg.  Thomas wrote a script to
      parse the csv files and add the proper SPDX tag to the file, in the
      format that the file expected.  This script was further refined by Greg
      based on the output to detect more types of files automatically and to
      distinguish between header and source .c files (which need different
      comment types.)  Finally Greg ran the script using the .csv files to
      generate the patches.
      Reviewed-by: NKate Stewart <kstewart@linuxfoundation.org>
      Reviewed-by: NPhilippe Ombredanne <pombredanne@nexb.com>
      Reviewed-by: NThomas Gleixner <tglx@linutronix.de>
      Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
      b2441318
  13. 03 8月, 2017 1 次提交
  14. 26 7月, 2017 1 次提交
  15. 11 7月, 2017 5 次提交
新手
引导
客服 返回
顶部