mirror of https://gitee.com/openkylin/linux.git
781248 Commits
| Author | SHA1 | Message | Date |
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Peter Korsgaard
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5d3a01a228 |
i2c: ocores: update my email address
The old @sunsite.dk address is no longer active, so update the references. Signed-off-by: Peter Korsgaard <peter@korsgaard.com> Signed-off-by: Wolfram Sang <wsa@the-dreams.de> |
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Wolfram Sang
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0c36dd37d5 |
i2c: remove deprecated attach_adapter callback
There aren't any users left. Remove this callback from the 2.4 times. Phew, finally, that took years to reach... Signed-off-by: Wolfram Sang <wsa@the-dreams.de> |
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Wolfram Sang
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3e7bed5271 |
macintosh: therm_windtunnel: drop using attach_adapter
As we now have deferred probing, we can use a custom mechanism and finally get rid of the legacy interface from the i2c core. Signed-off-by: Wolfram Sang <wsa@the-dreams.de> Acked-by: Michael Ellerman <mpe@ellerman.id.au> |
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Linus Torvalds
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33e17876ea |
Merge branch 'akpm' (patches from Andrew)
Merge yet more updates from Andrew Morton:
- the rest of MM
- various misc fixes and tweaks
* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (22 commits)
mm: Change return type int to vm_fault_t for fault handlers
lib/fonts: convert comments to utf-8
s390: ebcdic: convert comments to UTF-8
treewide: convert ISO_8859-1 text comments to utf-8
drivers/gpu/drm/gma500/: change return type to vm_fault_t
docs/core-api: mm-api: add section about GFP flags
docs/mm: make GFP flags descriptions usable as kernel-doc
docs/core-api: split memory management API to a separate file
docs/core-api: move *{str,mem}dup* to "String Manipulation"
docs/core-api: kill trailing whitespace in kernel-api.rst
mm/util: add kernel-doc for kvfree
mm/util: make strndup_user description a kernel-doc comment
fs/proc/vmcore.c: hide vmcoredd_mmap_dumps() for nommu builds
treewide: correct "differenciate" and "instanciate" typos
fs/afs: use new return type vm_fault_t
drivers/hwtracing/intel_th/msu.c: change return type to vm_fault_t
mm: soft-offline: close the race against page allocation
mm: fix race on soft-offlining free huge pages
namei: allow restricted O_CREAT of FIFOs and regular files
hfs: prevent crash on exit from failed search
...
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Souptick Joarder
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2b74030354 |
mm: Change return type int to vm_fault_t for fault handlers
Use new return type vm_fault_t for fault handler. For now, this is just
documenting that the function returns a VM_FAULT value rather than an
errno. Once all instances are converted, vm_fault_t will become a
distinct type.
Ref-> commit
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Arnd Bergmann
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a99237afc1 |
lib/fonts: convert comments to utf-8
The font files contain bit masks for characters in the cp437 character set, and comments showing what character this is supposed to be. This only makes sense when the terminal used to view the files is set to the same codepage, but all other files in the kernel now use utf-8 encoding. This changes those comments to utf-8 as well, for consistency. Link: http://lkml.kernel.org/r/20180724111600.4158975-3-arnd@arndb.de Signed-off-by: Arnd Bergmann <arnd@arndb.de> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Arnd Bergmann
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8f2bc80c6e |
s390: ebcdic: convert comments to UTF-8
The ebcdic.c file contains tables for converting between ebcdic and PC codepage 437. I could however not identify which encoding was used for the comments. This seems to be some variation of ISO_8859-1 with non-UTF-8 escape characters. I have converted this to UTF-8 by manually removing the escape characters and then running it through recode, to get the same encoding that we use for the rest of the kernel. Link: http://lkml.kernel.org/r/20180724111600.4158975-2-arnd@arndb.de Signed-off-by: Arnd Bergmann <arnd@arndb.de> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Arnd Bergmann
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3723c63247 |
treewide: convert ISO_8859-1 text comments to utf-8
Almost all files in the kernel are either plain text or UTF-8 encoded. A couple however are ISO_8859-1, usually just a few characters in a C comments, for historic reasons. This converts them all to UTF-8 for consistency. Link: http://lkml.kernel.org/r/20180724111600.4158975-1-arnd@arndb.de Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Simon Horman <horms@verge.net.au> [IPVS portion] Acked-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> [IIO] Acked-by: Michael Ellerman <mpe@ellerman.id.au> [powerpc] Acked-by: Rob Herring <robh@kernel.org> Cc: Joe Perches <joe@perches.com> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Samuel Ortiz <sameo@linux.intel.com> Cc: "David S. Miller" <davem@davemloft.net> Cc: Rob Herring <robh+dt@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Souptick Joarder
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0edf681375 |
drivers/gpu/drm/gma500/: change return type to vm_fault_t
Use new return type vm_fault_t for fault handler. For now, this is just
documenting that the function returns a VM_FAULT value rather than an
errno. Once all instances are converted, vm_fault_t will become a
distinct type.
Ref->
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Mike Rapoport
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038a07a542 |
docs/core-api: mm-api: add section about GFP flags
Link: http://lkml.kernel.org/r/1532626360-16650-8-git-send-email-rppt@linux.vnet.ibm.com Signed-off-by: Mike Rapoport <rppt@linux.vnet.ibm.com> Reviewed-by: Andrew Morton <akpm@linux-foundation.org> Cc: Jonathan Corbet <corbet@lwn.net> Cc: Matthew Wilcox <willy@infradead.org> Cc: Michal Hocko <mhocko@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Mike Rapoport
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263fade51f |
docs/mm: make GFP flags descriptions usable as kernel-doc
This patch adds DOC: headings for GFP flag descriptions and adjusts the formatting to fit sphinx expectations of paragraphs. Link: http://lkml.kernel.org/r/1532626360-16650-7-git-send-email-rppt@linux.vnet.ibm.com Signed-off-by: Mike Rapoport <rppt@linux.vnet.ibm.com> Reviewed-by: Andrew Morton <akpm@linux-foundation.org> Cc: Jonathan Corbet <corbet@lwn.net> Cc: Matthew Wilcox <willy@infradead.org> Cc: Michal Hocko <mhocko@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Mike Rapoport
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41f35b395c |
docs/core-api: split memory management API to a separate file
This is basically copy-paste of the memory management section from kernel-api.rst with some minor adjustments: * The "User Space Memory Access" is moved to the beginning * The get_user_pages_fast reference is now a part of "User Space Memory Access" * And, of course, headings are adjusted with section being promoted to chapters Link: http://lkml.kernel.org/r/1532626360-16650-6-git-send-email-rppt@linux.vnet.ibm.com Signed-off-by: Mike Rapoport <rppt@linux.vnet.ibm.com> Reviewed-by: Andrew Morton <akpm@linux-foundation.org> Cc: Jonathan Corbet <corbet@lwn.net> Cc: Matthew Wilcox <willy@infradead.org> Cc: Michal Hocko <mhocko@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Mike Rapoport
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1595617655 |
docs/core-api: move *{str,mem}dup* to "String Manipulation"
The string and memory duplication routines fit better to the "String Manipulation" section than to "The SLAB Cache". Link: http://lkml.kernel.org/r/1532626360-16650-5-git-send-email-rppt@linux.vnet.ibm.com Signed-off-by: Mike Rapoport <rppt@linux.vnet.ibm.com> Reviewed-by: Andrew Morton <akpm@linux-foundation.org> Cc: Jonathan Corbet <corbet@lwn.net> Cc: Matthew Wilcox <willy@infradead.org> Cc: Michal Hocko <mhocko@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Mike Rapoport
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7463f650be |
docs/core-api: kill trailing whitespace in kernel-api.rst
Link: http://lkml.kernel.org/r/1532626360-16650-4-git-send-email-rppt@linux.vnet.ibm.com Signed-off-by: Mike Rapoport <rppt@linux.vnet.ibm.com> Reviewed-by: Andrew Morton <akpm@linux-foundation.org> Cc: Jonathan Corbet <corbet@lwn.net> Cc: Matthew Wilcox <willy@infradead.org> Cc: Michal Hocko <mhocko@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Mike Rapoport
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ff4dc77293 |
mm/util: add kernel-doc for kvfree
Link: http://lkml.kernel.org/r/1532626360-16650-3-git-send-email-rppt@linux.vnet.ibm.com Signed-off-by: Mike Rapoport <rppt@linux.vnet.ibm.com> Reviewed-by: Andrew Morton <akpm@linux-foundation.org> Cc: Jonathan Corbet <corbet@lwn.net> Cc: Matthew Wilcox <willy@infradead.org> Cc: Michal Hocko <mhocko@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Mike Rapoport
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b86181f1ad |
mm/util: make strndup_user description a kernel-doc comment
Patch series "memory management documentation updates", v3. Here are several updates to the mm documentation. Aside from really minor changes in the first three patches, the updates are: * move the documentation of kstrdup and friends to "String Manipulation" section * split memory management API into a separate .rst file * adjust formating of the GFP flags description and include it in the reference documentation. This patch (of 7): The description of the strndup_user function misses '*' character at the beginning of the comment to be proper kernel-doc. Add the missing character. Link: http://lkml.kernel.org/r/1532626360-16650-2-git-send-email-rppt@linux.vnet.ibm.com Signed-off-by: Mike Rapoport <rppt@linux.vnet.ibm.com> Reviewed-by: Andrew Morton <akpm@linux-foundation.org> Cc: Jonathan Corbet <corbet@lwn.net> Cc: Matthew Wilcox <willy@infradead.org> Cc: Michal Hocko <mhocko@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Arnd Bergmann
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a2036a1ef2 |
fs/proc/vmcore.c: hide vmcoredd_mmap_dumps() for nommu builds
Without CONFIG_MMU, we get a build warning:
fs/proc/vmcore.c:228:12: error: 'vmcoredd_mmap_dumps' defined but not used [-Werror=unused-function]
static int vmcoredd_mmap_dumps(struct vm_area_struct *vma, unsigned long dst,
The function is only referenced from an #ifdef'ed caller, so
this uses the same #ifdef around it.
Link: http://lkml.kernel.org/r/20180525213526.2117790-1-arnd@arndb.de
Fixes:
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Finn Thain
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3cc97bea60 |
treewide: correct "differenciate" and "instanciate" typos
Also add these typos to spelling.txt so checkpatch.pl will look for them. Link: http://lkml.kernel.org/r/88af06b9de34d870cb0afc46cfd24e0458be2575.1529471371.git.fthain@telegraphics.com.au Signed-off-by: Finn Thain <fthain@telegraphics.com.au> Cc: Masahiro Yamada <yamada.masahiro@socionext.com> Cc: Joe Perches <joe@perches.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Souptick Joarder
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0722f18620 |
fs/afs: use new return type vm_fault_t
Use new return type vm_fault_t for fault handler in struct
vm_operations_struct. For now, this is just documenting that the
function returns a VM_FAULT value rather than an errno. Once all
instances are converted, vm_fault_t will become a distinct type.
See
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Souptick Joarder
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42df050930 |
drivers/hwtracing/intel_th/msu.c: change return type to vm_fault_t
Use new return type vm_fault_t for fault handler. For now, this is just
documenting that the function returns a VM_FAULT value rather than an
errno. Once all instances are converted, vm_fault_t will become a
distinct type.
See
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Naoya Horiguchi
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d4ae9916ea |
mm: soft-offline: close the race against page allocation
A process can be killed with SIGBUS(BUS_MCEERR_AR) when it tries to allocate a page that was just freed on the way of soft-offline. This is undesirable because soft-offline (which is about corrected error) is less aggressive than hard-offline (which is about uncorrected error), and we can make soft-offline fail and keep using the page for good reason like "system is busy." Two main changes of this patch are: - setting migrate type of the target page to MIGRATE_ISOLATE. As done in free_unref_page_commit(), this makes kernel bypass pcplist when freeing the page. So we can assume that the page is in freelist just after put_page() returns, - setting PG_hwpoison on free page under zone->lock which protects freelists, so this allows us to avoid setting PG_hwpoison on a page that is decided to be allocated soon. [akpm@linux-foundation.org: tweak set_hwpoison_free_buddy_page() comment] Link: http://lkml.kernel.org/r/1531452366-11661-3-git-send-email-n-horiguchi@ah.jp.nec.com Signed-off-by: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com> Reported-by: Xishi Qiu <xishi.qiuxishi@alibaba-inc.com> Tested-by: Mike Kravetz <mike.kravetz@oracle.com> Cc: Michal Hocko <mhocko@kernel.org> Cc: <zy.zhengyi@alibaba-inc.com> Cc: Mike Kravetz <mike.kravetz@oracle.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Naoya Horiguchi
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6bc9b56433 |
mm: fix race on soft-offlining free huge pages
Patch series "mm: soft-offline: fix race against page allocation".
Xishi recently reported the issue about race on reusing the target pages
of soft offlining. Discussion and analysis showed that we need make
sure that setting PG_hwpoison should be done in the right place under
zone->lock for soft offline. 1/2 handles free hugepage's case, and 2/2
hanldes free buddy page's case.
This patch (of 2):
There's a race condition between soft offline and hugetlb_fault which
causes unexpected process killing and/or hugetlb allocation failure.
The process killing is caused by the following flow:
CPU 0 CPU 1 CPU 2
soft offline
get_any_page
// find the hugetlb is free
mmap a hugetlb file
page fault
...
hugetlb_fault
hugetlb_no_page
alloc_huge_page
// succeed
soft_offline_free_page
// set hwpoison flag
mmap the hugetlb file
page fault
...
hugetlb_fault
hugetlb_no_page
find_lock_page
return VM_FAULT_HWPOISON
mm_fault_error
do_sigbus
// kill the process
The hugetlb allocation failure comes from the following flow:
CPU 0 CPU 1
mmap a hugetlb file
// reserve all free page but don't fault-in
soft offline
get_any_page
// find the hugetlb is free
soft_offline_free_page
// set hwpoison flag
dissolve_free_huge_page
// fail because all free hugepages are reserved
page fault
...
hugetlb_fault
hugetlb_no_page
alloc_huge_page
...
dequeue_huge_page_node_exact
// ignore hwpoisoned hugepage
// and finally fail due to no-mem
The root cause of this is that current soft-offline code is written based
on an assumption that PageHWPoison flag should be set at first to avoid
accessing the corrupted data. This makes sense for memory_failure() or
hard offline, but does not for soft offline because soft offline is about
corrected (not uncorrected) error and is safe from data lost. This patch
changes soft offline semantics where it sets PageHWPoison flag only after
containment of the error page completes successfully.
Link: http://lkml.kernel.org/r/1531452366-11661-2-git-send-email-n-horiguchi@ah.jp.nec.com
Signed-off-by: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Reported-by: Xishi Qiu <xishi.qiuxishi@alibaba-inc.com>
Suggested-by: Xishi Qiu <xishi.qiuxishi@alibaba-inc.com>
Tested-by: Mike Kravetz <mike.kravetz@oracle.com>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: <zy.zhengyi@alibaba-inc.com>
Cc: Mike Kravetz <mike.kravetz@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Salvatore Mesoraca
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30aba6656f |
namei: allow restricted O_CREAT of FIFOs and regular files
Disallows open of FIFOs or regular files not owned by the user in world writable sticky directories, unless the owner is the same as that of the directory or the file is opened without the O_CREAT flag. The purpose is to make data spoofing attacks harder. This protection can be turned on and off separately for FIFOs and regular files via sysctl, just like the symlinks/hardlinks protection. This patch is based on Openwall's "HARDEN_FIFO" feature by Solar Designer. This is a brief list of old vulnerabilities that could have been prevented by this feature, some of them even allow for privilege escalation: CVE-2000-1134 CVE-2007-3852 CVE-2008-0525 CVE-2009-0416 CVE-2011-4834 CVE-2015-1838 CVE-2015-7442 CVE-2016-7489 This list is not meant to be complete. It's difficult to track down all vulnerabilities of this kind because they were often reported without any mention of this particular attack vector. In fact, before hardlinks/symlinks restrictions, fifos/regular files weren't the favorite vehicle to exploit them. [s.mesoraca16@gmail.com: fix bug reported by Dan Carpenter] Link: https://lkml.kernel.org/r/20180426081456.GA7060@mwanda Link: http://lkml.kernel.org/r/1524829819-11275-1-git-send-email-s.mesoraca16@gmail.com [keescook@chromium.org: drop pr_warn_ratelimited() in favor of audit changes in the future] [keescook@chromium.org: adjust commit subjet] Link: http://lkml.kernel.org/r/20180416175918.GA13494@beast Signed-off-by: Salvatore Mesoraca <s.mesoraca16@gmail.com> Signed-off-by: Kees Cook <keescook@chromium.org> Suggested-by: Solar Designer <solar@openwall.com> Suggested-by: Kees Cook <keescook@chromium.org> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Ernesto A. Fernández
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dc2572791d |
hfs: prevent crash on exit from failed search
hfs_find_exit() expects fd->bnode to be NULL after a search has failed. hfs_brec_insert() may instead set it to an error-valued pointer. Fix this to prevent a crash. Link: http://lkml.kernel.org/r/53d9749a029c41b4016c495fc5838c9dba3afc52.1530294815.git.ernesto.mnd.fernandez@gmail.com Signed-off-by: Ernesto A. Fernández <ernesto.mnd.fernandez@gmail.com> Cc: Anatoly Trosinenko <anatoly.trosinenko@gmail.com> Cc: Viacheslav Dubeyko <slava@dubeyko.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Ernesto A. Fernandez
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aba93a92f4 |
hfsplus: prevent crash on exit from failed search
hfs_find_exit() expects fd->bnode to be NULL after a search has failed. hfs_brec_insert() may instead set it to an error-valued pointer. Fix this to prevent a crash. Link: http://lkml.kernel.org/r/803590a35221fbf411b2c141419aea3233a6e990.1530294813.git.ernesto.mnd.fernandez@gmail.com Signed-off-by: Ernesto A. Fernandez <ernesto.mnd.fernandez@gmail.com> Reported-by: Anatoly Trosinenko <anatoly.trosinenko@gmail.com> Reviewed-by: Vyacheslav Dubeyko <slava@dubeyko.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Ernesto A. Fernández
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a7ec7a4193 |
hfsplus: fix NULL dereference in hfsplus_lookup()
An HFS+ filesystem can be mounted read-only without having a metadata directory, which is needed to support hardlinks. But if the catalog data is corrupted, a directory lookup may still find dentries claiming to be hardlinks. hfsplus_lookup() does check that ->hidden_dir is not NULL in such a situation, but mistakenly does so after dereferencing it for the first time. Reorder this check to prevent a crash. This happens when looking up corrupted catalog data (dentry) on a filesystem with no metadata directory (this could only ever happen on a read-only mount). Wen Xu sent the replication steps in detail to the fsdevel list: https://bugzilla.kernel.org/show_bug.cgi?id=200297 Link: http://lkml.kernel.org/r/20180712215344.q44dyrhymm4ajkao@eaf Signed-off-by: Ernesto A. Fernández <ernesto.mnd.fernandez@gmail.com> Reported-by: Wen Xu <wen.xu@gatech.edu> Cc: Viacheslav Dubeyko <slava@dubeyko.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Will Deacon
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d475fac957 |
arm64: tlb: Provide forward declaration of tlb_flush() before including tlb.h
As of commit
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Linus Torvalds
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53a01c9a5f |
NFS client updates for Linux 4.19
Stable bufixes:
- v3.17+: Fix an off-by-one in bl_map_stripe()
- v4.9+: NFSv4 client live hangs after live data migration recovery
- v4.18+: xprtrdma: Fix disconnect regression
- v4.14+: Fix locking in pnfs_generic_recover_commit_reqs
- v4.9+: Fix a sleep in atomic context in nfs4_callback_sequence()
Features:
- Add support for asynchronous server-side COPY operations
Other bugfixes and cleanups:
- Optitmizations and fixes involving NFS v4.1 / pNFS layout handling
- Optimize lseek(fd, SEEK_CUR, 0) on directories to avoid locking
- Immediately reschedule writeback when the server replies with an error
- Fix excessive attribute revalidation in nfs_execute_ok()
- Add error checking to nfs_idmap_prepare_message()
- Use new vm_fault_t return type
- Return a delegation when reclaiming one that the server has recalled
- Referrals should inherit proto setting from parents
- Make rpc_auth_create_args a const
- Improvements to rpc_iostats tracking
- Fix a potential reference leak when there is an error processing a callback
- Fix rmdir / mkdir / rename nlink accounting
- Fix updating inode change attribute
- Fix error handling in nfsn4_sp4_select_mode()
- Use an appropriate work queue for direct-write completion
- Don't busy wait if NFSv4 session draining is interrupted
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Merge tag 'nfs-for-4.19-1' of git://git.linux-nfs.org/projects/anna/linux-nfs
Pull NFS client updates from Anna Schumaker:
"These patches include adding async support for the v4.2 COPY
operation. I think Bruce is planning to send the server patches for
the next release, but I figured we could get the client side out of
the way now since it's been in my tree for a while. This shouldn't
cause any problems, since the server will still respond with
synchronous copies even if the client requests async.
Features:
- Add support for asynchronous server-side COPY operations
Stable bufixes:
- Fix an off-by-one in bl_map_stripe() (v3.17+)
- NFSv4 client live hangs after live data migration recovery (v4.9+)
- xprtrdma: Fix disconnect regression (v4.18+)
- Fix locking in pnfs_generic_recover_commit_reqs (v4.14+)
- Fix a sleep in atomic context in nfs4_callback_sequence() (v4.9+)
Other bugfixes and cleanups:
- Optimizations and fixes involving NFS v4.1 / pNFS layout handling
- Optimize lseek(fd, SEEK_CUR, 0) on directories to avoid locking
- Immediately reschedule writeback when the server replies with an
error
- Fix excessive attribute revalidation in nfs_execute_ok()
- Add error checking to nfs_idmap_prepare_message()
- Use new vm_fault_t return type
- Return a delegation when reclaiming one that the server has
recalled
- Referrals should inherit proto setting from parents
- Make rpc_auth_create_args a const
- Improvements to rpc_iostats tracking
- Fix a potential reference leak when there is an error processing a
callback
- Fix rmdir / mkdir / rename nlink accounting
- Fix updating inode change attribute
- Fix error handling in nfsn4_sp4_select_mode()
- Use an appropriate work queue for direct-write completion
- Don't busy wait if NFSv4 session draining is interrupted"
* tag 'nfs-for-4.19-1' of git://git.linux-nfs.org/projects/anna/linux-nfs: (54 commits)
pNFS: Remove unwanted optimisation of layoutget
pNFS/flexfiles: ff_layout_pg_init_read should exit on error
pNFS: Treat RECALLCONFLICT like DELAY...
pNFS: When updating the stateid in layoutreturn, also update the recall range
NFSv4: Fix a sleep in atomic context in nfs4_callback_sequence()
NFSv4: Fix locking in pnfs_generic_recover_commit_reqs
NFSv4: Fix a typo in nfs4_init_channel_attrs()
NFSv4: Don't busy wait if NFSv4 session draining is interrupted
NFS recover from destination server reboot for copies
NFS add a simple sync nfs4_proc_commit after async COPY
NFS handle COPY ERR_OFFLOAD_NO_REQS
NFS send OFFLOAD_CANCEL when COPY killed
NFS export nfs4_async_handle_error
NFS handle COPY reply CB_OFFLOAD call race
NFS add support for asynchronous COPY
NFS COPY xdr handle async reply
NFS OFFLOAD_CANCEL xdr
NFS CB_OFFLOAD xdr
NFS: Use an appropriate work queue for direct-write completion
NFSv4: Fix error handling in nfs4_sp4_select_mode()
...
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Linus Torvalds
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9157141c95 |
A mistake on my part caused me to tag my branch 6 commits too early,
missing Chuck's fixes for the problem with callbacks over GSS from multi-homed servers, and a smaller fix from Laura Abbott. -----BEGIN PGP SIGNATURE----- iQIcBAABAgAGBQJbftA8AAoJECebzXlCjuG+QPMQALieEKkX0YoqRhPz5G+RrWFy KgOBFAoiRcjFQD6wMt9FzD6qYEZqSJ+I2b+K5N3BkdyDDQu845iD0wK0zBGhMgLm 7ith85nphIMbe18+5jPorqAsI9RlfBQjiSGw1MEx5dicLQQzTObHL5q+l5jcWna4 jWS3yUKv1URpOsR1hIryw74ktSnhuH8n//zmntw8aWrCkq3hnXOZK/agtYxZ7Viv V3kiQsiNpL2FPRcHN7ejhLUTnRkkuD2iYKrzP/SpTT/JfdNEUXlMhKkAySogNpus nvR9X7hwta8Lgrt7PSB9ibFTXtCupmuICg5mbDWy6nXea2NvpB01QhnTzrlX17Eh Yfk/18z95b6Qs1v4m3SI8ESmyc6l5dMZozLudtHzifyCqooWZriEhCR1PlQfQ/FJ 4cYQ8U/qiMiZIJXL7N2wpSoSaWR5bqU1rXen29Np1WEDkiv4Nf5u2fsCXzv0ZH2C ReWpNkbnNxsNiKpp4geBZtlcSEU1pk+1PqE0MagTdBV3iptiUHRSP4jR7qLnc0zT J1lCvU7Fodnt9vNSxMpt2Jd6XxQ6xtx7n6aMQAiYFnXDs+hP2hPnJVCScnYW3L6R 2r1sHRKKeoOzCJ2thw+zu4lOwMm7WPkJPWAYfv90reWkiKoy2vG0S9P7wsNGoJuW fuEjB2b9pow1Ffynat6q =JnLK -----END PGP SIGNATURE----- Merge tag 'nfsd-4.19-1' of git://linux-nfs.org/~bfields/linux Pull nfsd updates from Bruce Fields: "Chuck Lever fixed a problem with NFSv4.0 callbacks over GSS from multi-homed servers. The only new feature is a minor bit of protocol (change_attr_type) which the client doesn't even use yet. Other than that, various bugfixes and cleanup" * tag 'nfsd-4.19-1' of git://linux-nfs.org/~bfields/linux: (27 commits) sunrpc: Add comment defining gssd upcall API keywords nfsd: Remove callback_cred nfsd: Use correct credential for NFSv4.0 callback with GSS sunrpc: Extract target name into svc_cred sunrpc: Enable the kernel to specify the hostname part of service principals sunrpc: Don't use stack buffer with scatterlist rpc: remove unneeded variable 'ret' in rdma_listen_handler nfsd: use true and false for boolean values nfsd: constify write_op[] fs/nfsd: Delete invalid assignment statements in nfsd4_decode_exchange_id NFSD: Handle full-length symlinks NFSD: Refactor the generic write vector fill helper svcrdma: Clean up Read chunk path svcrdma: Avoid releasing a page in svc_xprt_release() nfsd: Mark expected switch fall-through sunrpc: remove redundant variables 'checksumlen','blocksize' and 'data' nfsd: fix leaked file lock with nfs exported overlayfs nfsd: don't advertise a SCSI layout for an unsupported request_queue nfsd: fix corrupted reply to badly ordered compound nfsd: clarify check_op_ordering ... |
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Linus Torvalds
|
6f7948f566 |
This pull request contains updates for both UBI and UBIFS:
- Year 2038 preparations - New UBI feature to skip CRC checks of static volumes - A new Kconfig option to disable xattrs in UBIFS - Lots of fixes in UBIFS, found by our new test framework -----BEGIN PGP SIGNATURE----- iQJKBAABCAA0FiEEdgfidid8lnn52cLTZvlZhesYu8EFAlt9zFkWHHJpY2hhcmRA c2lnbWEtc3Rhci5hdAAKCRBm+VmF6xi7waiuD/oDYzerOLe0R7n2sRT9zjtY8kCx LuizRvDYUlmMynI6EVahfyJy2IixcDmXOklGdxJqUkN5igDC/FORWdQjv2X9y56d qZ2dlS8aBvI0ZKBG2ew4VP1H67CXtCw8H9fE32SGotPmxKRUQqt2vKqo+vgQfapH eSVPrOaoqoRh+/ieumYXsvFdEUWpa66G3tVMFe4znu+kYRBbGzSszxpuq1ukIls2 P9wewqbWAZpqn+n9A9+RBIv81g+jH87/acfjK2L7/lT9wsFO7BQGKi373dPbnTa5 9WsjGEd+Gt0kb4Kjh5QegY97bPqWjmaMj1BLqeQVpSbQqpzkiFMf9GW5+h3XqAfO hM1zzgONZMxHdZSKH0bWzIRQbvU6v0d9C4J/elfFuH9ke2XscrxjOtZZQbtbGeYj tE7FWoZnB8euXubulGAUBKofzWe+gItBe9+iA29EBETNOemrJyHyKjO0Fe9ze5p2 bfVFvN62kHz4ZCJoinwO/OpXnCuA91xrVocLOOIreb4dkZ/kqP+YZWFf70FcE1o5 sPAbAUu+hfb2LbpktEdZHHbhoupfCnJokzfboJMX0NWKRtFXJDONjogJYTFUjrpW eXS+55+WFHoLWtx9J2IVmcb3cQrj/W/4J83kSg99cUkVjGpil50zmtzhq9bHzsLc wazngueP7kW2l9bSSg== =gCyp -----END PGP SIGNATURE----- Merge tag 'upstream-4.19-rc1' of git://git.infradead.org/linux-ubifs Pull UBI/UBIFS updates from Richard Weinberger: - Year 2038 preparations - New UBI feature to skip CRC checks of static volumes - A new Kconfig option to disable xattrs in UBIFS - Lots of fixes in UBIFS, found by our new test framework * tag 'upstream-4.19-rc1' of git://git.infradead.org/linux-ubifs: (21 commits) ubifs: Set default assert action to read-only ubifs: Allow setting assert action as mount parameter ubifs: Rework ubifs_assert() ubifs: Pass struct ubifs_info to ubifs_assert() ubifs: Turn two ubifs_assert() into a WARN_ON() ubi: expose the volume CRC check skip flag ubi: provide a way to skip CRC checks ubifs: Use kmalloc_array() ubifs: Check data node size before truncate Revert "UBIFS: Fix potential integer overflow in allocation" ubifs: Add comment on c->commit_sem ubifs: introduce Kconfig symbol for xattr support ubifs: use swap macro in swap_dirty_idx ubifs: tnc: use monotonic znode timestamp ubifs: use timespec64 for inode timestamps ubifs: xattr: Don't operate on deleted inodes ubifs: gc: Fix typo ubifs: Fix memory leak in lprobs self-check ubi: Initialize Fastmap checkmapping correctly ubifs: Fix synced_i_size calculation for xattr inodes ... |
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Linus Torvalds
|
b39d7efc11 |
pwm: Changes for v4.19-rc1
This contains mostly minor bug fixes as well as some new chip support for existing drivers. -----BEGIN PGP SIGNATURE----- iQJNBAABCAA3FiEEiOrDCAFJzPfAjcif3SOs138+s6EFAlt+tkoZHHRoaWVycnku cmVkaW5nQGdtYWlsLmNvbQAKCRDdI6zXfz6zod9ED/9PpR9nHTyi9yQdLsAykSwg AaM59A0A/ZFYW24RoB3FNq0xLV7H0qIVK4XXZNtWMQh2qTK8QRkfKCH+pdlveN/t guMunVNau6hr42tay/OtCcHPulDs/qlndwDeqymFwbYFIcVFkx5BpGthimntYHra rwzIqvz1u1eRY8O4czQSWXctJR/LWn+8xLzQrToGoa+7UjZJ1Dj9PYuTT7ePOc7Q /OrR5M+f6CGc99PaA39oMfmoqe/HCXIEWBhuMS8CJJMW1JFozNKHraOTcT25pPCt 6cxDmOZn/RlVY3bwjy4AInikbcVOmjTT7uCRuFTiB890prLMeBHlL51gzxQgo/Qk 1eelpW/E1YOMt8eULm0K5o+wrFepWto/fiH17SvjxDJKMM0YAoCJhrSvD794lF3u e8ISDB1rw7RoE8NsByAsnde5IrRl0jBdjHHi4gMt+34iMzMsWoA0GNwFB0DjclEU DVEsqLbVzpRFSaWTR6pqJIEJBmKJtd4JdvgNDSsVIp5ungrwYxmr2Ta1VnvroWYo Wt42MCv37jhBF4o50CVKgEcGX8g4Ka4hwSxXJTt142hIQ8xQNGXNBx5tzBlFwPnl WxwzbCxdsVCW53/EHaUDc7114pRPD/p8zaGn91kh99eh8hxZJcDNqAQlt2Xgv2Ek 260ZlHXYdKCa1/FGEuk93A== =Y0ng -----END PGP SIGNATURE----- Merge tag 'pwm/for-4.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm Pull pwm updates from Thierry Reding: "This contains mostly minor bug fixes as well as some new chip support for existing drivers" * tag 'pwm/for-4.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm: pwm: mediatek: Add MT7628 support dt-bindings: pwm: Add MT7628 information dt-bindings: pwm: rcar: Add bindings for R-Car E3 support pwm: meson: Fix mux clock names pwm: stm32-lp: Remove useless loop in stm32_pwm_lp_remove() pwm: omap-dmtimer: Return -EPROBE_DEFER if no dmtimer platform data pwm: mxs: Switch to SPDX identifier dt-bindings: pwm: fsl-ftm: Add compatible string for i.MX8QM pwm: fsl-ftm: Enable support for the new SoC i.MX8QM pwm: fsl-ftm: Added the support of per-compatible data pwm: fsl-ftm: Added a dedicated IP interface clock pwm: cros-ec: Switch to SPDX identifier pwm: imx: Switch to SPDX identifier pwm: tiehrpwm: Fix disabling of output of PWMs pwm: tiehrpwm: Don't use emulation mode bits to control PWM output pwm: berlin: Don't use broken prescaler values |
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Linus Torvalds
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06e386a1db |
fbdev changes for v4.19:
- add support for deferred console takeover, when enabled defers fbcon taking over the console from the dummy console until the first text is displayed on the console - together with the "quiet" kernel commandline option this allows fbcon to still be used together with a smooth graphical bootup (Hans de Goede) - improve console locking debugging code (Thomas Zimmermann) - copy the ACPI BGRT boot graphics to the framebuffer when deferred console takeover support is used in efifb driver (Hans de Goede) - update udlfb driver - fix lost console when the user unplugs a USB adapter, fix the screen corruption issue, fix locking and add some performance optimizations (Mikulas Patocka) - update pxafb driver - fix using uninitialized memory, switch to devm_* API, handle initialization errors and add support for lcd-supply regulator (Daniel Mack) - add support for boards booted with a DeviceTree in pxa3xx_gcu driver (Daniel Mack) - rename omap2 module to omap2fb.ko to avoid conflicts with omap1 driver (Arnd Bergmann) - enable ACPI-based enumeration for goldfishfb driver (Yu Ning) - fix goldfishfb driver to make user space Android code use 60 fps (Christoffer Dall) - print big fat warning when nomodeset kernel parameter is used in vgacon driver (Lyude Paul) - remove VLA usage from fsl-diu-fb driver (Kees Cook) - misc fixes (Julia Lawall, Geert Uytterhoeven, Fredrik Noring, Yisheng Xie, Dan Carpenter, Daniel Vetter, Anton Vasilyev, Randy Dunlap, Gustavo A. R. Silva, Colin Ian King, Fengguang Wu) - misc cleanups (Roman Kiryanov, Yisheng Xie, Colin Ian King) -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIcBAABCAAGBQJbfqB3AAoJEH4ztj+gR8ILakkP/RO8oXz11Gkb/EzqrH4woHa/ Wpzia5e3NDYllSWAP/t5UeaDbL5WuHzzLkeCEKXFUhFInR5jM19TF9sdUR8xUzGu dKCAdUaQWsO0rSe04fMHlJXk6RCSl0n0gfd7JM6qhM9YEuEpFM1k17/aKoy8pcwX m3bqfQHZAbLxo4UveBVeorTkx7F5bpanbQoCa4YDaDkU3CCTwohBLNR32zPdeMis Sy0WDdRjuvQvFui2eTU3kPFnHMKETijoS17rq72s6PNtI86yVBCvEE+08jIJZ6Hi A2iePfUuQd5FwzKilRoTR3X8XDIvkZbQ2idKeWgwYJOGM7C2JaDyMXvtkgS3/QeS muiwxLAdqZWG2/8Hb3HviRDOGqvAMWRzQbRgQsndM6pgI3MJ2CyfpvGfI1EhQoe3 WFp0eLa8rOqZ2jUx8mcEhuYOzO/PobMD4sYW+GrxGYFvrMwexvm4sJ3rxf4xx49F upvyDDDTdHHjUrOTiIM7bwTYnMMWSfZQhUBPPy7fJJsGU6/GqPUM5ReOclMCtC8m 5sbiJKuHR/SyJtbRinVV3e/cfmFXHCauD3L4wFIkpC0ZQlRaHC/bjz0Pdbwxgxua Ug1+5CFFYqh8cKUTelfNTm1g02zHqEaMh2zvHYrqS7DIHidj3Bvn6SQxj7ndeHZG QTjrpbGhTc68bSOPZZ+b =7UE9 -----END PGP SIGNATURE----- Merge tag 'fbdev-v4.19' of https://github.com/bzolnier/linux Pull fbdev updates from Bartlomiej Zolnierkiewicz: "Mostly small fixes and cleanups for fb drivers (the biggest updates are for udlfb and pxafb drivers). This also adds deferred console takeover support to the console code and efifb driver. Summary: - add support for deferred console takeover, when enabled defers fbcon taking over the console from the dummy console until the first text is displayed on the console - together with the "quiet" kernel commandline option this allows fbcon to still be used together with a smooth graphical bootup (Hans de Goede) - improve console locking debugging code (Thomas Zimmermann) - copy the ACPI BGRT boot graphics to the framebuffer when deferred console takeover support is used in efifb driver (Hans de Goede) - update udlfb driver - fix lost console when the user unplugs a USB adapter, fix the screen corruption issue, fix locking and add some performance optimizations (Mikulas Patocka) - update pxafb driver - fix using uninitialized memory, switch to devm_* API, handle initialization errors and add support for lcd-supply regulator (Daniel Mack) - add support for boards booted with a DeviceTree in pxa3xx_gcu driver (Daniel Mack) - rename omap2 module to omap2fb.ko to avoid conflicts with omap1 driver (Arnd Bergmann) - enable ACPI-based enumeration for goldfishfb driver (Yu Ning) - fix goldfishfb driver to make user space Android code use 60 fps (Christoffer Dall) - print big fat warning when nomodeset kernel parameter is used in vgacon driver (Lyude Paul) - remove VLA usage from fsl-diu-fb driver (Kees Cook) - misc fixes (Julia Lawall, Geert Uytterhoeven, Fredrik Noring, Yisheng Xie, Dan Carpenter, Daniel Vetter, Anton Vasilyev, Randy Dunlap, Gustavo A. R. Silva, Colin Ian King, Fengguang Wu) - misc cleanups (Roman Kiryanov, Yisheng Xie, Colin Ian King)" * tag 'fbdev-v4.19' of https://github.com/bzolnier/linux: (54 commits) Documentation/fb: corrections for fbcon.txt fbcon: Do not takeover the console from atomic context dummycon: Stop exporting dummycon_[un]register_output_notifier fbcon: Only defer console takeover if the current console driver is the dummycon fbcon: Only allow FRAMEBUFFER_CONSOLE_DEFERRED_TAKEOVER if fbdev is builtin fbdev: omap2: omapfb: fix ifnullfree.cocci warnings fbdev: omap2: omapfb: fix bugon.cocci warnings fbdev: omap2: omapfb: fix boolreturn.cocci warnings fb: amifb: fix build warnings when not builtin fbdev/core: Disable console-lock warnings when fb.lockless_register_fb is set console: Replace #if 0 with atomic var 'ignore_console_lock_warning' udlfb: use spin_lock_irq instead of spin_lock_irqsave udlfb: avoid prefetch udlfb: optimization - test the backing buffer udlfb: allow reallocating the framebuffer udlfb: set line_length in dlfb_ops_set_par udlfb: handle allocation failure udlfb: set optimal write delay udlfb: make a local copy of fb_ops udlfb: don't switch if we are switching to the same videomode ... |
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Linus Torvalds
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99897b1e99 |
sound fixes for 4.19-rc1
no surprises here: a regression fix for virmidi code refactoring, three fixes for the new AC97 bus compat and runtime PM, and a usual HD-audio quirk. -----BEGIN PGP SIGNATURE----- iQJCBAABCAAsFiEEIXTw5fNLNI7mMiVaLtJE4w1nLE8FAlt+hRUOHHRpd2FpQHN1 c2UuZGUACgkQLtJE4w1nLE9ukQ/+Ou8QjdFM8hghYiLWUiNdzFhut6k3CyzJpSyr BD3oUEuCUp+rsI3HuTIaerdTezT4xdIwFozbXZ51f3OWxqGkP0lSBASfpxBOELRi i2fAfExgWnvTY34EFuW8Zf/H2grl14wixC4IQN2IqlRWwnQbcrOI+wEizaXcLrrb KcItJVmjsNzwJrtg51MA8eLPWeyZ2dCeDXcSawLe8qHkpUyAX4kpt2oOyYcTeGJe +kM2x6MWoDN5cdWzkJxkayO+wiffCZXQv3NUq+EFY0p1yAO9Bsz3zq42RsxEl0E8 l8WL/FXvroc4VGO38ksicyZp4iy6YSMPv6PHijHHDqVAh5hmdAwMhdzi5LWExV12 b6GBbd8WajqQ0nShRtnx/uFHG0PrmS59k17JdP9kK8z6YSekD5vmS8NkF8ibXr5T NySqyrK4BGxolB/cXyImzCvdkxvPbTKe2sy5VD8kevRKZcloQ7N8lghP1JMMNa/i qqjuDIG9wUhf6Ksw63eksG6u27v6kki+TbmteyBLl0y6iTdbZ+xmLsragcm/LD35 +nebpqQBDNOGtMY8llZ+Y8QAuhnWy5YFlnYg16T8K0lnE84YtwyQzG5uV34fJ8Qw iVkS89pAZHnf6OkyOi3yWTyykzlTpq6DL7zulXXs0/KCcZCl9qj9yreHq+0lYYVe WrFv6PE= =381l -----END PGP SIGNATURE----- Merge tag 'sound-fix-4.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound Pull sound fixes from Takashi Iwai: "No surprises here: a regression fix for virmidi code refactoring, three fixes for the new AC97 bus compat and runtime PM, and a usual HD-audio quirk" * tag 'sound-fix-4.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: ALSA: hda/realtek - Fix HP Headset Mic can't record ALSA: ac97: fix unbalanced pm_runtime_enable ALSA: ac97: fix check of pm_runtime_get_sync failure ALSA: ac97: fix device initialization in the compat layer ALSA: seq: virmidi: Fix discarding the unsubscribed output |
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Linus Torvalds
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1290290c92 |
Second merge window update
- Switch SMC over to rdma_get_gid_attr and remove the compat - Fix a crash in HFI1 with some BIOS's - Fix a randconfig failure -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEfB7FMLh+8QxL+6i3OG33FX4gmxoFAlt9z6kACgkQOG33FX4g mxqLag//Zr3RrNSmswNjl+6PrWeg88GQstAm4gQps8mR03eI8Ha5fAS6MWuq1U8+ LGP8bbBtE6fHSCkPSnN/owReZSTcTIbgWB021vBIUKUpytmxie+ugMVXIHwm6cIM E3pgPsRngTrqtuRxyOhyoaMKSjRCbSdMe43SWf42/S+9SxDkmXtBzymYT119bu/A eqU7z/HuRqcVxrgOinhPjcQkEFdRYUaRk+g6jzaQmZl8IjKHp/d3BSzmzbE6txMt txP5hu/msz4xkyusX/I6ZS3do+4WMIAMNhq9bVMo5pNu2RG1eo0LLmHgjsDsFI3u ZTaZQj6eYWlbwWRiOU+2Frf4kH4CGAyxlFVCr4yEvfe2VvEbZsLZbYuF1iasnqrP 3Mrbh7Esj4MfDT/QbunnoX+49X/Rzma/a+tu6hqAhnGjvYsaDyy8WSNwHMs65f7m sii58arik9exJHVKMXZ5FJJydBYBcPt5IlkUdoTTZ1eLkoc2B9lG6lKZbWxUYNPx uS6XOyR4fcsmLfKfEvQuLZznWi3Jo4R17QKlL5ulqHrZUJV4PZ4Eiu5izScZ4ci/ xcPGz1a4MT7Zg3V611qGSGt7zYDdD5+R+k/sDIOleCFIpueFzzh/I1oLkSIoXFIx DmwqCdRGeB5F7ZhfArFTezgiaMe55SPJKY5PAiThxzoostUGOfw= =6z1N -----END PGP SIGNATURE----- Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma Pull more rdma updates from Jason Gunthorpe: "This is the SMC cleanup promised, a randconfig regression fix, and kernel oops fix. Summary: - Switch SMC over to rdma_get_gid_attr and remove the compat - Fix a crash in HFI1 with some BIOS's - Fix a randconfig failure" * tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma: IB/ucm: fix UCM link error IB/hfi1: Invalid NUMA node information can cause a divide by zero RDMA/smc: Replace ib_query_gid with rdma_get_gid_attr |
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Linus Torvalds
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706a1ea65e |
Merge branch 'tlb-fixes'
Merge fixes for missing TLB shootdowns. This fixes a couple of cases that involved us possibly freeing page table structures before the required TLB shootdown had been done. There are a few cleanup patches to make the code easier to follow, and to avoid some of the more problematic cases entirely when not necessary. To make this easier for backports, it undoes the recent lazy TLB patches, because the cleanups and fixes are more important, and Rik is ok with re-doing them later when things have calmed down. The missing TLB flush was only delayed, and the wrong ordering only happened under memory pressure (and in theory under a couple of other fairly theoretical situations), so this may have been all very unlikely to have hit people in practice. But getting the TLB shootdown wrong is _so_ hard to debug and see that I consider this a crticial fix. Many thanks to Jann Horn for having debugged this. * tlb-fixes: x86/mm: Only use tlb_remove_table() for paravirt mm: mmu_notifier fix for tlb_end_vma mm/tlb, x86/mm: Support invalidating TLB caches for RCU_TABLE_FREE mm/tlb: Remove tlb_remove_table() non-concurrent condition mm: move tlb_table_flush to tlb_flush_mmu_free x86/mm/tlb: Revert the recent lazy TLB patches |
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Linus Torvalds
|
d40acad1f1 |
xen: fixes and cleanups for 4.19-rc1, second round
-----BEGIN PGP SIGNATURE----- iHUEABYIAB0WIQRTLbB6QfY48x44uB6AXGG7T9hjvgUCW36rRgAKCRCAXGG7T9hj vkrcAQC8F+ljGO5PtYUkKcMy17vqvcq/BdetJuUVfk+G1WmLxQEAiaNiqqJGsOyJ Msa0HHDT31uBYGg/iq7yAWk23tcTZwE= =Px4D -----END PGP SIGNATURE----- Merge tag 'for-linus-4.19b-rc1b-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip Pull xen fixes and cleanups from Juergen Gross: "Some cleanups, some minor fixes and a fix for a bug introduced in this merge window hitting 32-bit PV guests" * tag 'for-linus-4.19b-rc1b-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip: x86/xen: enable early use of set_fixmap in 32-bit Xen PV guest xen: remove unused hypercall functions x86/xen: remove unused function xen_auto_xlated_memory_setup() xen/ACPI: don't upload Px/Cx data for disabled processors x86/Xen: further refine add_preferred_console() invocations xen/mcelog: eliminate redundant setting of interface version x86/Xen: mark xen_setup_gdt() __init |
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|
Linus Torvalds
|
0c4b0f815f |
A few MIPS fixes for 4.19:
- Fix microMIPS build failures by adding a .insn directive to the
barrier_before_unreachable() asm statement in order to convince the
toolchain that the asm statement is a valid branch target rather
than a bogus attempt to switch ISA.
- Clean up our declarations of TLB functions that we overwrite with
generated code in order to prevent the compiler making assumptions
about alignment that cause microMIPS kernels built with GCC 7 &
above to die early during boot.
- Fix up a regression for MIPS32 kernels which slipped into the main
MIPS pull for 4.19, causing CONFIG_32BIT=y kernels to contain
inappropriate MIPS64 instructions.
- Extend our existing workaround for MIPSr6 builds that end up using
the __multi3 intrinsic to GCC 7 & below, rather than just GCC 7.
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Merge tag 'mips_4.19_2' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux
Pull MIPS fixes from Paul Burton:
- Fix microMIPS build failures by adding a .insn directive to the
barrier_before_unreachable() asm statement in order to convince the
toolchain that the asm statement is a valid branch target rather
than a bogus attempt to switch ISA.
- Clean up our declarations of TLB functions that we overwrite with
generated code in order to prevent the compiler making assumptions
about alignment that cause microMIPS kernels built with GCC 7 &
above to die early during boot.
- Fix up a regression for MIPS32 kernels which slipped into the main
MIPS pull for 4.19, causing CONFIG_32BIT=y kernels to contain
inappropriate MIPS64 instructions.
- Extend our existing workaround for MIPSr6 builds that end up using
the __multi3 intrinsic to GCC 7 & below, rather than just GCC 7.
* tag 'mips_4.19_2' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux:
MIPS: lib: Provide MIPS64r6 __multi3() for GCC < 7
MIPS: Workaround GCC __builtin_unreachable reordering bug
compiler.h: Allow arch-specific asm/compiler.h
MIPS: Avoid move psuedo-instruction whilst using MIPS_ISA_LEVEL
MIPS: Consistently declare TLB functions
MIPS: Export tlbmiss_handler_setup_pgd near its definition
|
|
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Linus Torvalds
|
2ab054fd1f |
OpenRISC updates for 4.19
Just one change for 4.19: - Refactors from Christoph Hellwig to use generic DMA facilities -----BEGIN PGP SIGNATURE----- iQIcBAABAgAGBQJbfS0+AAoJEMOzHC1eZifkq9YP/1L9gyp8eolVe0q90rWdNIBf BxqfLZv2kyMJZsj0GxycXHMnob4q+cJbPxQlxJLk02tGO97l+ze9FfH4FL0gqYeM Ei2HeOJMxFX6w3/vHIw2UzzYXHoBpe06Kp1Za9GyJlyxiJ/MYvwASbC/LNo1/HxX exg7epXOAZFxmivWAPJiUcyNnMRLqSgzOGlg7HLfX7CTmjPkqDqDLNzwY/CgLxCW LuzEAFC/bPFadzfGOlMnww5j7zzobgjC9Zj+dOdZBnVmnIO8NdhFmiDTnKXVQsUr C+34Tf4LfiL/BigTAo9bjPJeY5fCsvcfbqnTCHXgCTBp80suXWjv8YZjfXOd6stI MU72RMwx5pFo6rsbcWAUULzHnAoEAeeyMWNbca/TJEMV5X1ift6R7qxd3ojrsD+R +I4wd00BJn0THrS9CUeGbqIOc8HYhpJialz8ZR2ucPVFGNFJoaGK6RUsPNZFjuq6 ErxOG4IcHZM9jJYCZJnw8uYNgDoZN00j3LBvpfC0QLHTMyDOkJ+eiN5e5V46RxIZ EPKgVX5SYp8L4sYQ8qR0HJsjgxNZzUSS4ccmt+hC2e7r4p/5L2CkeOFWArg4ZQX2 n27SUcy6RU/8X8YSjbS+w1zNue4uoU7JnTaMhE5GVOzhaHPTiHq78IL+QnkSUkUj m5z8iBp3w4QZ3FezP7Hj =C60y -----END PGP SIGNATURE----- Merge tag 'for-linus' of git://github.com/openrisc/linux Pull OpenRISC update from Stafford Horne: "Just one change for 4.19: refactoring from Christoph Hellwig to use generic DMA facilities" * tag 'for-linus' of git://github.com/openrisc/linux: openrisc: use generic dma_noncoherent_ops openrisc: fix cache maintainance the the sync_single_for_device DMA operation openrisc: remove the no-op unmap_page and unmap_sg DMA operations openrisc: remove the sync_single_for_cpu DMA operation |
|
|
Linus Torvalds
|
2f34a64aea |
ARM: Device-tree updates
Business as usual -- the bulk of our changes are to devicetree files
with new hardware support, new SoCs and platforms, and new board types.
New SoCs/platforms:
- Raspberry Pi Compute Module (CM1) and IO board
- i.MX6SSL from NXP
- Renesas RZ/N1D SoC (R9A06G032), Dual Cortex-A7 with Ethernet, CAN and
PLC interfaces
- TI AM654 SoC, Quad Cortex-A53, safety subsystem with Cortex-R5
controllers, communication and PRU subsystem and lots of other
interfaces (PCIe, USB3, etc).
New boards and systems:
- Several Atmel at91-based boards from Laird
- Marvell Armada388-based Helios4 board from SolidRun
- Samsung Aires-based phones (s5pv210)
- Allwinner A64-based Pinebook laptop
In addition to the above, there's the usual amount of new devices
described on existing platforms, fixes and tweaks and new minor variants
of boards/platforms.
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Merge tag 'armsoc-dt' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM device-tree updates from Olof Johansson:
"Business as usual -- the bulk of our changes are to devicetree files
with new hardware support, new SoCs and platforms, and new board
types.
New SoCs/platforms:
- Raspberry Pi Compute Module (CM1) and IO board
- i.MX6SSL from NXP
- Renesas RZ/N1D SoC (R9A06G032), Dual Cortex-A7 with Ethernet, CAN
and PLC interfaces
- TI AM654 SoC, Quad Cortex-A53, safety subsystem with Cortex-R5
controllers, communication and PRU subsystem and lots of other
interfaces (PCIe, USB3, etc).
New boards and systems:
- Several Atmel at91-based boards from Laird
- Marvell Armada388-based Helios4 board from SolidRun
- Samsung Aires-based phones (s5pv210)
- Allwinner A64-based Pinebook laptop
In addition to the above, there's the usual amount of new devices
described on existing platforms, fixes and tweaks and new minor
variants of boards/platforms"
* tag 'armsoc-dt' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (478 commits)
arm64: dts: sdm845: Add tsens nodes
arm64: dts: msm8996: thermal: Initialise via DT and add second controller
arm64: dts: sprd: Add one suspend timer
arm64: dts: sprd: Add SC27XX ADC device
arm64: dts: sprd: Add SC27XX eFuse device
arm64: dts: sprd: Add SC27XX vibrator device
arm64: dts: sprd: Add SC27XX breathing light controller device
arm64: dts: meson-axg: add spdif-dit codec
arm64: dts: meson-axg: add lineout codec
arm64: dts: meson-axg: add linein codec
arm64: dts: meson-axg: add tdm interfaces
arm64: dts: meson-axg: add tdmout formatters
arm64: dts: meson-axg: add tdmin formatters
arm64: dts: meson-axg: add spdifout
arm64: dts: rockchip: add led support for Firefly-RK3399
arm64: dts: rockchip: remove deprecated Type-C PHY properties on rk3399
arm64: dts: rockchip: add power button support for Firefly-RK3399
ARM: dts: aspeed: Add coprocessor interrupt controller
arm64: dts: meson-axg: add audio arb reset controller
arm64: dts: meson-axg: add usb power regulator
...
|
|
|
Linus Torvalds
|
ee09075696 |
ARM: SoC defconfig updates
We keep these separate since some files are shared and conflict-prone, but there isn't really much to write about here. Some of the churnier pieces is for the Aspeed platforms, which did an overdue refresh of the defconfig, and enabled USB gadget and some drivers from there. Most of the rest are minor additions here and there to turn on drivers that are needed or useful on the various platforms. -----BEGIN PGP SIGNATURE----- iQJDBAABCAAtFiEElf+HevZ4QCAJmMQ+jBrnPN6EHHcFAlt+MYkPHG9sb2ZAbGl4 b20ubmV0AAoJEIwa5zzehBx3tqgP/2PluGZrr0tFPUGBYK1hb7jHCfAW+SOhDr28 jdFdd+505x3VZB7KMqB3TA3uebBySxjU+lBa5aPN3tgVN7siHs0ZRJuQuT4fxlru lypbKGPl/dE4lpZ04DKqvSXgM/8QiRPxdwjWn8zDlTqciuScqSKtxWux3siq5VEF D0Xxg2M9G1E27Xft5JhE17OvInvWqoGv4vGTMRKrhC631sGrsYhDz5wkeyiC10ge KXqT0f7yiL+SWtYVdXeeG+CpriInlpC+L6PUvHGqBNNgJR2IChuFzyLXY2u+x4qn toSAAVCGot5RMfr+oQg1V9X1jSQ1y8aO1KKU8WahnUtJOwiPX3b/d7jLMWqtlTq/ zC3aF0ly7PBzaqYEzJTL0xV5BO7OsI8HZJsKo2j10pnI+iaimt72BicBRorfzWpx akCkESlNMkixMTGoAedRJVe8joXrUGjuv2uqZlPE24yjjgkfMoyEJEExkysNuiV7 6VNn8cNsj/8KQcpHUPwBVJkUUVpk1EW4UNAmNK+cx2O7/eyX7ZQPZk2PvNh6eLgb 6+RtJCVEOvC5HpAsLI+8yJs1fV3Vu4Kf42YLNSybgUGwOqGIP1I7Fa3sMeRZE3Bu gMfk6R+Gj4WXmlRvCmwjAErIMJyzVyXzKftDxVVPXA3/XWnryWik8bXFDbonGFgl sj+FL1nC =t+qo -----END PGP SIGNATURE----- Merge tag 'armsoc-defconfig' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull ARM SoC defconfig updates from Olof Johansson: "We keep these separate since some files are shared and conflict-prone, but there isn't really much to write about here. Some of the churnier pieces is for the Aspeed platforms, which did an overdue refresh of the defconfig, and enabled USB gadget and some drivers from there. Most of the rest are minor additions here and there to turn on drivers that are needed or useful on the various platforms" * tag 'armsoc-defconfig' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (39 commits) ARM: multi_v7_defconfig: add CONFIG_UNIPHIER_THERMAL and CONFIG_SNI_AVE ARM: config: aspeed: Enable new FSI drivers ARM: config: multi_v5: Enable ASPEED drivers ARM: config: multi_v5: Refresh configuration ARM: config: aspeed: Update defconfig ARM: multi_v7_defconfig: Enable support for RZN1D-DB ARM: shmobile: defconfig: Disable /sbin/hotplug fork-bomb ARM: shmobile: defconfig: Enable support for RZN1D-DB ARM: shmobile: defconfig: Enable reset controller support ARM: shmobile: defconfig: Drop NET_VENDOR_<FOO>=n arm64: defconfig: Enable more peripherals for Samsung Chromebook Plus. arm64: defconfig: Enable CONFIG_MTD_NAND_QCOM for IPQ8074 ARM: qcom_defconfig: Enable QCOM NAND related configs ARM: imx_v6_v7_defconfig: add DMATEST support ARM: mvebu_v7_defconfig: enable SFP support ARM: mvebu_v7_defconfig: sync defconfig ARM: multi_v7_defconfig: Add Marvell NAND controller support arm: configs: Add USB gadget to Aspeed G5 defconfig arm: configs: Add USB gadget to Aspeed G4 defconfig arm64: defconfig: enable HiSilicon PMU driver ... |
|
|
Linus Torvalds
|
f3ea496213 |
ARM: SoC driver updates
Some of the larger changes this merge window:
- Removal of drivers for Exynos5440, a Samsung SoC that never saw
widespread use.
- Uniphier support for USB3 and SPI reset handling
- Syste control and SRAM drivers and bindings for Allwinner platforms
- Qualcomm AOSS (Always-on subsystem) reset controller drivers
- Raspberry Pi hwmon driver for voltage
- Mediatek pwrap (pmic) support for MT6797 SoC
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Merge tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC driver updates from Olof Johansson:
"Some of the larger changes this merge window:
- Removal of drivers for Exynos5440, a Samsung SoC that never saw
widespread use.
- Uniphier support for USB3 and SPI reset handling
- Syste control and SRAM drivers and bindings for Allwinner platforms
- Qualcomm AOSS (Always-on subsystem) reset controller drivers
- Raspberry Pi hwmon driver for voltage
- Mediatek pwrap (pmic) support for MT6797 SoC"
* tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (52 commits)
drivers/firmware: psci_checker: stash and use topology_core_cpumask for hotplug tests
soc: fsl: cleanup Kconfig menu
soc: fsl: dpio: Convert DPIO documentation to .rst
staging: fsl-mc: Remove remaining files
staging: fsl-mc: Move DPIO from staging to drivers/soc/fsl
staging: fsl-dpaa2: eth: move generic FD defines to DPIO
soc: fsl: qe: gpio: Add qe_gpio_set_multiple
usb: host: exynos: Remove support for Exynos5440
clk: samsung: Remove support for Exynos5440
soc: sunxi: Add the A13, A23 and H3 system control compatibles
reset: uniphier: add reset control support for SPI
cpufreq: exynos: Remove support for Exynos5440
ata: ahci-platform: Remove support for Exynos5440
soc: imx6qp: Use GENPD_FLAG_ALWAYS_ON for PU errata
soc: mediatek: pwrap: add mt6351 driver for mt6797 SoCs
soc: mediatek: pwrap: add pwrap driver for mt6797 SoCs
soc: mediatek: pwrap: fix cipher init setting error
dt-bindings: pwrap: mediatek: add pwrap support for MT6797
reset: uniphier: add USB3 core reset control
dt-bindings: reset: uniphier: add USB3 core reset support
...
|
|
|
Linus Torvalds
|
9e259f9352 |
ARM: 32-bit SoC platform updates
Most of the SoC updates in this cycle are cleanups and moves to more
modern infrastructure:
- Davinci was moved to common clock framework
- OMAP1-based Amstrad E3 "Superphone" saw a bunch of cleanups to the
keyboard interface (bitbanged AT keyboard via GPIO).
- Removal of some stale code for Renesas platforms
- Power management improvements for i.MX6LL
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Merge tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM 32-bit SoC platform updates from Olof Johansson:
"Most of the SoC updates in this cycle are cleanups and moves to more
modern infrastructure:
- Davinci was moved to common clock framework
- OMAP1-based Amstrad E3 "Superphone" saw a bunch of cleanups to the
keyboard interface (bitbanged AT keyboard via GPIO).
- Removal of some stale code for Renesas platforms
- Power management improvements for i.MX6LL"
* tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (112 commits)
ARM: uniphier: select RESET_CONTROLLER
arm64: uniphier: select RESET_CONTROLLER
ARM: uniphier: remove empty Makefile
ARM: exynos: Clear global variable on init error path
ARM: exynos: Remove outdated maintainer information
ARM: shmobile: Always enable ARCH_TIMER on SoCs with A7 and/or A15
ARM: shmobile: r8a7779: hide unused r8a7779_platform_cpu_kill
soc: r9a06g032: don't build SMP files for non-SMP config
ARM: shmobile: Add the R9A06G032 SMP enabler driver
ARM: at91: pm: configure wakeup sources for ULP1 mode
ARM: at91: pm: add PMC fast startup registers defines
ARM: at91: pm: Add ULP1 mode support
ARM: at91: pm: Use ULP0 naming instead of slow clock
ARM: hisi: handle of_iomap and fix missing of_node_put
ARM: hisi: check of_iomap and fix missing of_node_put
ARM: hisi: fix error handling and missing of_node_put
ARM: mx5: Set the DBGEN bit in ARM_GPC register
ARM: imx51: Configure M4IF to avoid visual artifacts
ARM: imx: call imx6sx_cpuidle_init() conditionally for 6sll
ARM: imx: fix i.MX6SLL build
...
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Linus Torvalds
|
5563ae9b39 |
RISC-V Updates for the 4.19 Merge Window, Part 2
This tag contains a pair of fixes to the RISC-V port. I've based this
on top of the merge of my previous PR, as I wanted to keep this as
linear as possible (so I didn't want to base on the last tag, which is
4.18 as I'm signing this PR) but didn't want to just grab master at some
arbitrary point. Let me know if that's the wrong thing to do.
The fixes are:
* The removal of our compat.h, which didn't do anything.
* Fixes to sys_riscv_flush_icache to ensure it actually shows up. We're
going to just call this a bug in the ABI, as it was always supposed to
be there.
I've given these a simple build+boot test, both individually and as the
actual tag.
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Merge tag 'riscv-for-linus-4.19-mw1' of git://git.kernel.org/pub/scm/linux/kernel/git/palmer/riscv-linux
Pull RISC-V fixes from Palmer Dabbelt:
"This contains a pair of fixes to the RISC-V port:
- The removal of our compat.h, which didn't do anything.
- Fixes to sys_riscv_flush_icache to ensure it actually shows up.
We're going to just call this a bug in the ABI, as it was always
supposed to be there.
I've given these a simple build+boot test, both individually and as
the actual tag"
* tag 'riscv-for-linus-4.19-mw1' of git://git.kernel.org/pub/scm/linux/kernel/git/palmer/riscv-linux:
riscv: Delete asm/compat.h
RISC-V: Don't use a global include guard for uapi/asm/syscalls.h
RISC-V: Define sys_riscv_flush_icache when SMP=n
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Linus Torvalds
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452938cbd8 |
Masami found an off by one bug in the code that keeps "notrace" functions
from being traced by kprobes. During my testing, I found that there's places that we may want to add kprobes to notrace, thus we may end up changing this code before 4.19 is released. The history behind this change is that we found that adding kprobes to various notrace functions caused the kernel to crashed. We took the safe route and decided not to allow kprobes to trace any notrace function. But because notrace is added to functions that just cause weird side effects to the function tracer, but are still safe, preventing kprobes for all notrace functios may be too much of a big hammer. One such place is __schedule() is marked notrace, to keep function tracer from doing strange recursive loops when it gets traced with NEED_RESCHED set. With this change, one can not add kprobes to the scheduler. Masami also added code to use gcov on ftrace. -----BEGIN PGP SIGNATURE----- iIoEABYIADIWIQRRSw7ePDh/lE+zeZMp5XQQmuv6qgUCW34RpBQccm9zdGVkdEBn b29kbWlzLm9yZwAKCRAp5XQQmuv6qhwzAQDITRob1VjOF8RavMbfBZZuhwHPQROF XsIFcD+jghFOUgEA1zXX4w+SwOV7S+chpGKMh3DlNKIbYPA+8eiMNFfDsA4= =u+oq -----END PGP SIGNATURE----- Merge tag 'trace-v4.19-1' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace Pull tracing fixes from Steven Rostedt: "Masami found an off by one bug in the code that keeps "notrace" functions from being traced by kprobes. During my testing, I found that there's places that we may want to add kprobes to notrace, thus we may end up changing this code before 4.19 is released. The history behind this change is that we found that adding kprobes to various notrace functions caused the kernel to crashed. We took the safe route and decided not to allow kprobes to trace any notrace function. But because notrace is added to functions that just cause weird side effects to the function tracer, but are still safe, preventing kprobes for all notrace functios may be too much of a big hammer. One such place is __schedule() is marked notrace, to keep function tracer from doing strange recursive loops when it gets traced with NEED_RESCHED set. With this change, one can not add kprobes to the scheduler. Masami also added code to use gcov on ftrace" * tag 'trace-v4.19-1' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace: tracing/kprobes: Fix to check notrace function with correct range tracing: Allow gcov profiling on only ftrace subsystem |
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Peter Zijlstra
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48a8b97cfd |
x86/mm: Only use tlb_remove_table() for paravirt
If we don't use paravirt; don't play unnecessary and complicated games to free page-tables. Suggested-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Acked-by: Rik van Riel <riel@surriel.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Nicholas Piggin
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fd1102f0aa |
mm: mmu_notifier fix for tlb_end_vma
The generic tlb_end_vma does not call invalidate_range mmu notifier, and it resets resets the mmu_gather range, which means the notifier won't be called on part of the range in case of an unmap that spans multiple vmas. ARM64 seems to be the only arch I could see that has notifiers and uses the generic tlb_end_vma. I have not actually tested it. [ Catalin and Will point out that ARM64 currently only uses the notifiers for KVM, which doesn't use the ->invalidate_range() callback right now, so it's a bug, but one that happens to not affect them. So not necessary for stable. - Linus ] Signed-off-by: Nicholas Piggin <npiggin@gmail.com> Acked-by: Catalin Marinas <catalin.marinas@arm.com> Acked-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Peter Zijlstra
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d86564a2f0 |
mm/tlb, x86/mm: Support invalidating TLB caches for RCU_TABLE_FREE
Jann reported that x86 was missing required TLB invalidates when he
hit the !*batch slow path in tlb_remove_table().
This is indeed the case; RCU_TABLE_FREE does not provide TLB (cache)
invalidates, the PowerPC-hash where this code originated and the
Sparc-hash where this was subsequently used did not need that. ARM
which later used this put an explicit TLB invalidate in their
__p*_free_tlb() functions, and PowerPC-radix followed that example.
But when we hooked up x86 we failed to consider this. Fix this by
(optionally) hooking tlb_remove_table() into the TLB invalidate code.
NOTE: s390 was also needing something like this and might now
be able to use the generic code again.
[ Modified to be on top of Nick's cleanups, which simplified this patch
now that tlb_flush_mmu_tlbonly() really only flushes the TLB - Linus ]
Fixes:
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Peter Zijlstra
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a6f572084f |
mm/tlb: Remove tlb_remove_table() non-concurrent condition
Will noted that only checking mm_users is incorrect; we should also
check mm_count in order to cover CPUs that have a lazy reference to
this mm (and could do speculative TLB operations).
If removing this turns out to be a performance issue, we can
re-instate a more complete check, but in tlb_table_flush() eliding the
call_rcu_sched().
Fixes:
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Nicholas Piggin
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db7ddef301 |
mm: move tlb_table_flush to tlb_flush_mmu_free
There is no need to call this from tlb_flush_mmu_tlbonly, it logically belongs with tlb_flush_mmu_free. This makes future fixes simpler. [ This was originally done to allow code consolidation for the mmu_notifier fix, but it also ends up helping simplify the HAVE_RCU_TABLE_INVALIDATE fix. - Linus ] Signed-off-by: Nicholas Piggin <npiggin@gmail.com> Acked-by: Will Deacon <will.deacon@arm.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: stable@kernel.org Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Peter Zijlstra
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52a288c736 |
x86/mm/tlb: Revert the recent lazy TLB patches
Revert commits: |