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2020-08-12kstrto*: correct documentation references to simple_strto*()Kars Mulder2-6/+6
The documentation of the kstrto*() functions reference the simple_strtoull function by "used as a replacement for [the obsolete] simple_strtoull". All these functions describes themselves as replacements for the function simple_strtoull, even though a function like kstrtol() would be more aptly described as a replacement of simple_strtol(). Fix these references by making the documentation of kstrto*() reference the closest simple_strto*() equivalent available. The functions kstrto[u]int() do not have direct simple_strto[u]int() equivalences, so these are made to refer to simple_strto[u]l() instead. Furthermore, add parentheses after function names, as is standard in kernel documentation. Fixes: 4c925d6031f71 ("kstrto*: add documentation") Signed-off-by: Kars Mulder <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Reviewed-by: Andy Shevchenko <[email protected]> Cc: Eldad Zack <[email protected]> Cc: Miguel Ojeda <[email protected]> Cc: Geert Uytterhoeven <[email protected]> Cc: Mans Rullgard <[email protected]> Cc: Petr Mladek <[email protected]> Link: http://lkml.kernel.org/r/1ee1-5f234c00-f3-165a6440@234394593 Signed-off-by: Linus Torvalds <[email protected]>
2020-08-12lib/: replace HTTP links with HTTPS onesAlexander A. Klimov13-15/+15
Rationale: Reduces attack surface on kernel devs opening the links for MITM as HTTPS traffic is much harder to manipulate. Signed-off-by: Alexander A. Klimov <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Acked-by: Coly Li <[email protected]> [crc64.c] Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Linus Torvalds <[email protected]>
2020-08-12lib/test_lockup.c: fix return value of test_lockup_init()Tiezhu Yang1-2/+2
Since filp_open() returns an error pointer, we should use IS_ERR() to check the return value and then return PTR_ERR() if failed to get the actual return value instead of always -EINVAL. E.g. without this patch: [root@localhost loongson]# ls no_such_file ls: cannot access no_such_file: No such file or directory [root@localhost loongson]# modprobe test_lockup file_path=no_such_file lock_sb_umount time_secs=60 state=S modprobe: ERROR: could not insert 'test_lockup': Invalid argument [root@localhost loongson]# dmesg | tail -1 [ 126.100596] test_lockup: cannot find file_path With this patch: [root@localhost loongson]# ls no_such_file ls: cannot access no_such_file: No such file or directory [root@localhost loongson]# modprobe test_lockup file_path=no_such_file lock_sb_umount time_secs=60 state=S modprobe: ERROR: could not insert 'test_lockup': Unknown symbol in module, or unknown parameter (see dmesg) [root@localhost loongson]# dmesg | tail -1 [ 95.134362] test_lockup: failed to open no_such_file: -2 Fixes: aecd42df6d39 ("lib/test_lockup.c: add parameters for locking generic vfs locks") Signed-off-by: Tiezhu Yang <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Reviewed-by: Guenter Roeck <[email protected]> Cc: Konstantin Khlebnikov <[email protected]> Cc: Kees Cook <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Linus Torvalds <[email protected]>
2020-08-12lib/Kconfig.debug: make TEST_LOCKUP depend on moduleTiezhu Yang1-0/+1
Since test_lockup is a test module to generate lockups, it is better to limit TEST_LOCKUP to module (=m) or disabled (=n) because we can not use the module parameters when CONFIG_TEST_LOCKUP=y. Signed-off-by: Tiezhu Yang <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Reviewed-by: Guenter Roeck <[email protected]> Cc: Konstantin Khlebnikov <[email protected]> Cc: Kees Cook <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Linus Torvalds <[email protected]>
2020-08-12lib/test_lockup.c: make symbol 'test_works' staticWei Yongjun1-1/+1
Fix sparse build warning: lib/test_lockup.c:403:1: warning: symbol '__pcpu_scope_test_works' was not declared. Should it be static? Reported-by: Hulk Robot <[email protected]> Signed-off-by: Wei Yongjun <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Linus Torvalds <[email protected]>
2020-08-12lib/test_bitops: do the full test during module initGeert Uytterhoeven1-8/+10
Currently, the bitops test consists of two parts: one part is executed during module load, the second part during module unload. This is cumbersome for the user, as he has to perform two steps to execute all tests, and is different from most (all?) other tests. Merge the two parts, so both are executed during module load. Signed-off-by: Geert Uytterhoeven <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Reviewed-by: Andy Shevchenko <[email protected]> Cc: Wei Yang <[email protected]> Cc: Jesse Brandeburg <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Linus Torvalds <[email protected]>
2020-08-12lib/generic-radix-tree.c: remove unneeded __rcuLuc Van Oostenryck1-1/+1
struct __genradix is defined as having its member 'root' annotated as __rcu. But in the corresponding API RCU is not used. Sparse reports this type mismatch as: lib/generic-radix-tree.c:56:35: warning: incorrect type in initializer (different address spaces) lib/generic-radix-tree.c:56:35: expected struct genradix_root *r lib/generic-radix-tree.c:56:35: got struct genradix_root [noderef] <asn:4> *__val with 6 other ones. So, correct root's type by removing this unneeded __rcu. Signed-off-by: Luc Van Oostenryck <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Cc: Kent Overstreet <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Linus Torvalds <[email protected]>
2020-08-12lib/test_bitmap.c: add test for bitmap_cut()Stefano Brivio1-0/+58
Inspired by an original patch from Yury Norov: introduce a test for bitmap_cut() that also makes sure functionality is as described for partially overlapping src and dst. Signed-off-by: Stefano Brivio <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Reviewed-by: Andy Shevchenko <[email protected]> Cc: Pablo Neira Ayuso <[email protected]> Cc: Rasmus Villemoes <[email protected]> Cc: Yury Norov <[email protected]> Link: http://lkml.kernel.org/r/5fc45e6bbd4fa837cd9577f8a0c1d639df90a4ce.1592155364.git.sbrivio@redhat.com Signed-off-by: Linus Torvalds <[email protected]>
2020-08-12lib/bitmap.c: fix bitmap_cut() for partial overlapping caseStefano Brivio1-2/+2
Patch series "lib: Fix bitmap_cut() for overlaps, add test" This patch (of 2): Yury Norov reports that bitmap_cut() will not produce the right outcome if src and dst partially overlap, with src pointing at some location after dst, because the memmove() affects src before we store the bits that we need to keep, that is, the bits preceding the cut -- as long as we the beginning of the cut is not aligned to a long. Fix this by storing those bits before the memmove(). Note that this is just a theoretical concern so far, as the only user of this function, pipapo_drop() from the nftables set back-end implemented in net/netfilter/nft_set_pipapo.c, always supplies entirely overlapping src and dst. Fixes: 2092767168f0 ("bitmap: Introduce bitmap_cut(): cut bits and shift remaining") Reported-by: Yury Norov <[email protected]> Signed-off-by: Stefano Brivio <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Reviewed-by: Andy Shevchenko <[email protected]> Cc: Rasmus Villemoes <[email protected]> Cc: Pablo Neira Ayuso <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Link: http://lkml.kernel.org/r/003e38d4428cd6091ef00b5b03354f1bd7d9091e.1592155364.git.sbrivio@redhat.com Signed-off-by: Linus Torvalds <[email protected]>
2020-08-12sparse: group the defines by functionalityLuc Van Oostenryck1-19/+25
By popular demand, reorder the defines for sparse annotations and group them by functionality. Signed-off-by: Luc Van Oostenryck <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Acked-by: Miguel Ojeda <[email protected]> Cc: Geert Uytterhoeven <[email protected]> Link: lore.kernel.org/r/CAMuHMdWQsirja-h3wBcZezk+H2Q_HShhAks8Hc8ps5fTAp=ObQ@mail.gmail.com Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Linus Torvalds <[email protected]>
2020-08-12include/linux/poison.h: remove obsolete commentMatthew Wilcox1-4/+0
When the definition was changed, the comment became stale. Just remove it since there isn't anything useful to say here. Fixes: b8a0255db958 ("include/linux/poison.h: use POISON_POINTER_DELTA for poison pointers") Signed-off-by: Matthew Wilcox (Oracle) <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Cc: Vasily Kulikov <[email protected]> Cc: Thomas Gleixner <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Linus Torvalds <[email protected]>
2020-08-12include/: replace HTTP links with HTTPS onesAlexander A. Klimov30-30/+30
Rationale: Reduces attack surface on kernel devs opening the links for MITM as HTTPS traffic is much harder to manipulate. Signed-off-by: Alexander A. Klimov <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Reviewed-by: Kees Cook <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Linus Torvalds <[email protected]>
2020-08-12kernel.h: remove duplicate include of asm/div64.hArvind Sankar1-1/+0
This seems to have been added inadvertently in commit 72deb455b5ec ("block: remove CONFIG_LBDAF") Fixes: 72deb455b5ec ("block: remove CONFIG_LBDAF") Signed-off-by: Arvind Sankar <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Reviewed-by: Christoph Hellwig <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Linus Torvalds <[email protected]>
2020-08-12./Makefile: add debug option to enable function aligned on 32 bytesFeng Tang2-0/+15
Recently 0day reported many strange performance changes (regression or improvement), in which there was no obvious relation between the culprit commit and the benchmark at the first look, and it causes people to doubt the test itself is wrong. Upon further check, many of these cases are caused by the change to the alignment of kernel text or data, as whole text/data of kernel are linked together, change in one domain may affect alignments of other domains. gcc has an option '-falign-functions=n' to force text aligned, and with that option enabled, some of those performance changes will be gone, like [1][2][3]. Add this option so that developers and 0day can easily find performance bump caused by text alignment change, as tracking these strange bump is quite time consuming. Though it can't help in other cases like data alignment changes like [4]. Following is some size data for v5.7 kernel built with a RHEL config used in 0day: text data bss dec filename 19738771 13292906 5554236 38585913 vmlinux.noalign 19758591 13297002 5529660 38585253 vmlinux.align32 Raw vmlinux size in bytes: v5.7 v5.7+align32 253950832 254018000 +0.02% Some benchmark data, most of them have no big change: * hackbench: [ -1.8%, +0.5%] * fsmark: [ -3.2%, +3.4%] # ext4/xfs/btrfs * kbuild: [ -2.0%, +0.9%] * will-it-scale: [ -0.5%, +1.8%] # mmap1/pagefault3 * netperf: - TCP_CRR [+16.6%, +97.4%] - TCP_RR [-18.5%, -1.8%] - TCP_STREAM [ -1.1%, +1.9%] [1] https://lore.kernel.org/lkml/20200114085637.GA29297@shao2-debian/ [2] https://lore.kernel.org/lkml/20200330011254.GA14393@feng-iot/ [3] https://lore.kernel.org/lkml/[email protected]/ [4] https://lore.kernel.org/lkml/20200205123216.GO12867@shao2-debian/ Signed-off-by: Feng Tang <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Cc: Masahiro Yamada <[email protected]> Cc: Michal Marek <[email protected]> Cc: Andi Kleen <[email protected]> Cc: Huang Ying <[email protected]> Cc: Andy Shevchenko <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Linus Torvalds <[email protected]>
2020-08-12kernel: add a kernel_wait helperChristoph Hellwig3-25/+21
Add a helper that waits for a pid and stores the status in the passed in kernel pointer. Use it to fix the usage of kernel_wait4 in call_usermodehelper_exec_sync that only happens to work due to the implicit set_fs(KERNEL_DS) for kernel threads. Signed-off-by: Christoph Hellwig <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Reviewed-by: Andrew Morton <[email protected]> Acked-by: "Eric W. Biederman" <[email protected]> Cc: Luis Chamberlain <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Linus Torvalds <[email protected]>
2020-08-12include/linux/xz.h: drop duplicated wordRandy Dunlap1-1/+1
Drop the doubled word "than" in a comment. Signed-off-by: Randy Dunlap <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Cc: Lasse Collin <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Linus Torvalds <[email protected]>
2020-08-12include/linux/async_tx.h: drop duplicated word in a commentRandy Dunlap1-1/+1
Drop the doubled word "the" in a comment. Signed-off-by: Randy Dunlap <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Reviewed-by: Andrew Morton <[email protected]> Cc: Dan Williams <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Linus Torvalds <[email protected]>
2020-08-12include/linux/exportfs.h: drop duplicated word in a commentRandy Dunlap1-1/+1
Drop the doubled word "a" in a comment. Signed-off-by: Randy Dunlap <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Reviewed-by: Andrew Morton <[email protected]> Cc: Alexander Viro <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Linus Torvalds <[email protected]>
2020-08-12include/linux/compiler-clang.h: drop duplicated word in a commentRandy Dunlap1-1/+1
Drop the doubled word "the" in a comment. Signed-off-by: Randy Dunlap <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Reviewed-by: Nathan Chancellor <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Linus Torvalds <[email protected]>
2020-08-12alpha: fix annotation of io{read,write}{16,32}be()Luc Van Oostenryck1-4/+4
These accessors must be used to read/write a big-endian bus. The value returned or written is native-endian. However, these accessors are defined using be{16,32}_to_cpu() or cpu_to_be{16,32}() to make the endian conversion but these expect a __be{16,32} when none is present. Keeping them would need a force cast that would solve nothing at all. So, do the conversion using swab{16,32}, like done in asm-generic for similar situations. Reported-by: kernel test robot <[email protected]> Signed-off-by: Luc Van Oostenryck <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Cc: Richard Henderson <[email protected]> Cc: Ivan Kokshaysky <[email protected]> Cc: Matt Turner <[email protected]> Cc: Stephen Boyd <[email protected]> Cc: Arnd Bergmann <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Linus Torvalds <[email protected]>
2020-08-12exec: use force_uaccess_begin during exec and exitChristoph Hellwig2-2/+7
Both exec and exit want to ensure that the uaccess routines actually do access user pointers. Use the newly added force_uaccess_begin helper instead of an open coded set_fs for that to prepare for kernel builds where set_fs() does not exist. Signed-off-by: Christoph Hellwig <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Acked-by: Linus Torvalds <[email protected]> Cc: Nick Hu <[email protected]> Cc: Greentime Hu <[email protected]> Cc: Vincent Chen <[email protected]> Cc: Paul Walmsley <[email protected]> Cc: Palmer Dabbelt <[email protected]> Cc: Geert Uytterhoeven <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Linus Torvalds <[email protected]>
2020-08-12uaccess: add force_uaccess_{begin,end} helpersChristoph Hellwig12-56/+63
Add helpers to wrap the get_fs/set_fs magic for undoing any damange done by set_fs(KERNEL_DS). There is no real functional benefit, but this documents the intent of these calls better, and will allow stubbing the functions out easily for kernels builds that do not allow address space overrides in the future. [[email protected]: drop two incorrect hunks, fix a commit log typo] Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Christoph Hellwig <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Acked-by: Linus Torvalds <[email protected]> Acked-by: Mark Rutland <[email protected]> Acked-by: Greentime Hu <[email protected]> Acked-by: Geert Uytterhoeven <[email protected]> Cc: Nick Hu <[email protected]> Cc: Vincent Chen <[email protected]> Cc: Paul Walmsley <[email protected]> Cc: Palmer Dabbelt <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Linus Torvalds <[email protected]>
2020-08-12uaccess: remove segment_eqChristoph Hellwig24-32/+25
segment_eq is only used to implement uaccess_kernel. Just open code uaccess_kernel in the arch uaccess headers and remove one layer of indirection. Signed-off-by: Christoph Hellwig <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Acked-by: Linus Torvalds <[email protected]> Acked-by: Greentime Hu <[email protected]> Acked-by: Geert Uytterhoeven <[email protected]> Cc: Nick Hu <[email protected]> Cc: Vincent Chen <[email protected]> Cc: Paul Walmsley <[email protected]> Cc: Palmer Dabbelt <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Linus Torvalds <[email protected]>
2020-08-12riscv: include <asm/pgtable.h> in <asm/uaccess.h>Christoph Hellwig1-0/+2
To ensure TASK_SIZE is defined for USER_DS. Signed-off-by: Christoph Hellwig <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Acked-by: Linus Torvalds <[email protected]> Acked-by: Palmer Dabbelt <[email protected]> Cc: Nick Hu <[email protected]> Cc: Greentime Hu <[email protected]> Cc: Vincent Chen <[email protected]> Cc: Paul Walmsley <[email protected]> Cc: Geert Uytterhoeven <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Linus Torvalds <[email protected]>
2020-08-12nds32: use uaccess_kernel in show_regsChristoph Hellwig1-1/+1
Use the uaccess_kernel helper instead of duplicating it. Signed-off-by: Christoph Hellwig <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Acked-by: Linus Torvalds <[email protected]> Acked-by: Greentime Hu <[email protected]> Cc: Nick Hu <[email protected]> Cc: Vincent Chen <[email protected]> Cc: Paul Walmsley <[email protected]> Cc: Palmer Dabbelt <[email protected]> Cc: Geert Uytterhoeven <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Linus Torvalds <[email protected]>
2020-08-12syscalls: use uaccess_kernel in addr_limit_user_checkChristoph Hellwig2-1/+3
Patch series "clean up address limit helpers", v2. In preparation for eventually phasing out direct use of set_fs(), this series removes the segment_eq() arch helper that is only used to implement or duplicate the uaccess_kernel() API, and then adds descriptive helpers to force the kernel address limit. This patch (of 6): Use the uaccess_kernel helper instead of duplicating it. [[email protected]: arm: don't call addr_limit_user_check for nommu] Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Christoph Hellwig <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Tested-by: Guenter Roeck <[email protected]> Acked-by: Linus Torvalds <[email protected]> Cc: Nick Hu <[email protected]> Cc: Greentime Hu <[email protected]> Cc: Vincent Chen <[email protected]> Cc: Paul Walmsley <[email protected]> Cc: Palmer Dabbelt <[email protected]> Cc: Geert Uytterhoeven <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Link: http://lkml.kernel.org/r/[email protected] Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Linus Torvalds <[email protected]>
2020-08-12mm/zsmalloc.c: fix duplicated wordsRandy Dunlap1-1/+1
Change "as as" to "as a". Signed-off-by: Randy Dunlap <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Reviewed-by: Andrew Morton <[email protected]> Reviewed-by: Zi Yan <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Linus Torvalds <[email protected]>
2020-08-12mm/zpool.c: delete duplicated word and fix grammarRandy Dunlap1-4/+4
Drop the repeated word "if". Fix subject/verb agreement. Signed-off-by: Randy Dunlap <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Reviewed-by: Andrew Morton <[email protected]> Reviewed-by: Zi Yan <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Linus Torvalds <[email protected]>
2020-08-12mm/vmscan.c: delete or fix duplicated wordsRandy Dunlap1-2/+2
Drop the repeated word "marked". Change "time time" to "same time". Signed-off-by: Randy Dunlap <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Reviewed-by: Andrew Morton <[email protected]> Reviewed-by: Zi Yan <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Linus Torvalds <[email protected]>
2020-08-12mm/usercopy.c: delete duplicated wordRandy Dunlap1-1/+1
Drop the repeated word "the". Signed-off-by: Randy Dunlap <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Reviewed-by: Andrew Morton <[email protected]> Reviewed-by: Zi Yan <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Linus Torvalds <[email protected]>
2020-08-12mm/slab_common.c: delete duplicated wordRandy Dunlap1-1/+1
Drop the repeated word "and". Signed-off-by: Randy Dunlap <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Reviewed-by: Andrew Morton <[email protected]> Reviewed-by: Zi Yan <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Linus Torvalds <[email protected]>
2020-08-12mm/shmem.c: delete duplicated wordRandy Dunlap1-1/+1
Drop the repeated word "the". Signed-off-by: Randy Dunlap <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Reviewed-by: Andrew Morton <[email protected]> Reviewed-by: Zi Yan <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Linus Torvalds <[email protected]>
2020-08-12mm/page_alloc.c: delete or fix duplicated wordsRandy Dunlap1-3/+3
Drop the repeated word "them" and "that". Change "the the" to "to the". Signed-off-by: Randy Dunlap <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Reviewed-by: Andrew Morton <[email protected]> Reviewed-by: Zi Yan <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Linus Torvalds <[email protected]>
2020-08-12mm/nommu.c: delete duplicated wordsRandy Dunlap1-2/+2
Drop the repeated word "that" in two places. Signed-off-by: Randy Dunlap <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Reviewed-by: Andrew Morton <[email protected]> Reviewed-by: Zi Yan <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Linus Torvalds <[email protected]>
2020-08-12mm/migrate.c: delete duplicated wordRandy Dunlap1-1/+1
Drop the repeated word "and". Signed-off-by: Randy Dunlap <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Reviewed-by: Andrew Morton <[email protected]> Reviewed-by: Zi Yan <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Linus Torvalds <[email protected]>
2020-08-12mm/memory.c: delete duplicated wordsRandy Dunlap1-2/+2
Drop the repeated word "to" in two places. Signed-off-by: Randy Dunlap <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Reviewed-by: Andrew Morton <[email protected]> Reviewed-by: Zi Yan <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Linus Torvalds <[email protected]>
2020-08-12mm/memcontrol.c: delete duplicated wordsRandy Dunlap1-1/+1
Drop the repeated word "down". Signed-off-by: Randy Dunlap <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Reviewed-by: Andrew Morton <[email protected]> Reviewed-by: Zi Yan <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Linus Torvalds <[email protected]>
2020-08-12mm/hugetlb.c: delete duplicated wordsRandy Dunlap1-2/+2
Drop the repeated word "the" in two places. Signed-off-by: Randy Dunlap <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Reviewed-by: Andrew Morton <[email protected]> Reviewed-by: Mike Kravetz <[email protected]> Reviewed-by: Zi Yan <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Linus Torvalds <[email protected]>
2020-08-12mm/hmm.c: delete duplicated wordRandy Dunlap1-1/+1
Drop the repeated word "pages". Signed-off-by: Randy Dunlap <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Reviewed-by: Andrew Morton <[email protected]> Reviewed-by: Zi Yan <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Linus Torvalds <[email protected]>
2020-08-12mm/filemap.c: delete duplicated wordRandy Dunlap1-1/+1
Drop the repeated word "the". Signed-off-by: Randy Dunlap <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Reviewed-by: Andrew Morton <[email protected]> Reviewed-by: Zi Yan <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Linus Torvalds <[email protected]>
2020-08-12mm/compaction.c: delete duplicated wordRandy Dunlap1-1/+1
Drop the repeated word "a". Signed-off-by: Randy Dunlap <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Reviewed-by: Andrew Morton <[email protected]> Reviewed-by: Zi Yan <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Linus Torvalds <[email protected]>
2020-08-12sparc: drop unused MAX_PHYSADDR_BITSArvind Sankar1-1/+0
The macro is not used anywhere, so remove the definition. Signed-off-by: Arvind Sankar <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Reviewed-by: Andrew Morton <[email protected]> Reviewed-by: David Hildenbrand <[email protected]> Acked-by: Dave Hansen <[email protected]> Acked-by: David S. Miller <[email protected]> Acked-by: Mike Rapoport <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Linus Torvalds <[email protected]>
2020-08-12sh/mm: drop unused MAX_PHYSADDR_BITSArvind Sankar1-3/+1
The macro is not used anywhere, so remove the definition. Signed-off-by: Arvind Sankar <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Reviewed-by: Andrew Morton <[email protected]> Reviewed-by: David Hildenbrand <[email protected]> Acked-by: Dave Hansen <[email protected]> Acked-by: Mike Rapoport <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Linus Torvalds <[email protected]>
2020-08-12include/linux/memcontrol.h: drop duplicate word and fix spelloRandy Dunlap1-2/+2
Drop the doubled word "for" in a comment. Fix spello of "incremented". Signed-off-by: Randy Dunlap <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Acked-by: Chris Down <[email protected]> Cc: Johannes Weiner <[email protected]> Cc: Michal Hocko <[email protected]> Cc: Vladimir Davydov <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Linus Torvalds <[email protected]>
2020-08-12include/linux/frontswap.h: drop duplicated word in a commentRandy Dunlap1-1/+1
Drop the doubled word "in" in a comment. Signed-off-by: Randy Dunlap <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Reviewed-by: Andrew Morton <[email protected]> Cc: Konrad Rzeszutek Wilk <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Linus Torvalds <[email protected]>
2020-08-12include/linux/highmem.h: fix duplicated words in a commentRandy Dunlap1-1/+1
Change the doubled word "is" in a comment to "it is". Signed-off-by: Randy Dunlap <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Reviewed-by: Andrew Morton <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Linus Torvalds <[email protected]>
2020-08-12mm: drop duplicated words in <linux/mm.h>Randy Dunlap1-2/+2
Drop the doubled words "to" and "the". Signed-off-by: Randy Dunlap <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Reviewed-by: SeongJae Park <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Linus Torvalds <[email protected]>
2020-08-12mm: drop duplicated words in <linux/pgtable.h>Randy Dunlap1-6/+6
Drop the doubled words "used" and "by". Drop the repeated acronym "TLB" and make several other fixes around it. (capital letters, spellos) Signed-off-by: Randy Dunlap <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Reviewed-by: SeongJae Park <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Linus Torvalds <[email protected]>
2020-08-12mm, memory_hotplug: update pcp lists everytime onlining a memory blockCharan Teja Reddy1-2/+1
When onlining a first memory block in a zone, pcp lists are not updated thus pcp struct will have the default setting of ->high = 0,->batch = 1. This means till the second memory block in a zone(if it have) is onlined the pcp lists of this zone will not contain any pages because pcp's ->count is always greater than ->high thus free_pcppages_bulk() is called to free batch size(=1) pages every time system wants to add a page to the pcp list through free_unref_page(). To put this in a word, system is not using benefits offered by the pcp lists when there is a single onlineable memory block in a zone. Correct this by always updating the pcp lists when memory block is onlined. Fixes: 1f522509c77a ("mem-hotplug: avoid multiple zones sharing same boot strapping boot_pageset") Signed-off-by: Charan Teja Reddy <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Reviewed-by: David Hildenbrand <[email protected]> Acked-by: Vlastimil Babka <[email protected]> Acked-by: Michal Hocko <[email protected]> Cc: Vinayak Menon <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Linus Torvalds <[email protected]>
2020-08-12mm/memory_hotplug: fix unpaired mem_hotplug_begin/doneJia He1-3/+2
When check_memblock_offlined_cb() returns failed rc(e.g. the memblock is online at that time), mem_hotplug_begin/done is unpaired in such case. Therefore a warning: Call Trace: percpu_up_write+0x33/0x40 try_remove_memory+0x66/0x120 ? _cond_resched+0x19/0x30 remove_memory+0x2b/0x40 dev_dax_kmem_remove+0x36/0x72 [kmem] device_release_driver_internal+0xf0/0x1c0 device_release_driver+0x12/0x20 bus_remove_device+0xe1/0x150 device_del+0x17b/0x3e0 unregister_dev_dax+0x29/0x60 devm_action_release+0x15/0x20 release_nodes+0x19a/0x1e0 devres_release_all+0x3f/0x50 device_release_driver_internal+0x100/0x1c0 driver_detach+0x4c/0x8f bus_remove_driver+0x5c/0xd0 driver_unregister+0x31/0x50 dax_pmem_exit+0x10/0xfe0 [dax_pmem] Fixes: f1037ec0cc8a ("mm/memory_hotplug: fix remove_memory() lockdep splat") Signed-off-by: Jia He <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Reviewed-by: David Hildenbrand <[email protected]> Acked-by: Michal Hocko <[email protected]> Acked-by: Dan Williams <[email protected]> Cc: <[email protected]> [5.6+] Cc: Andy Lutomirski <[email protected]> Cc: Baoquan He <[email protected]> Cc: Borislav Petkov <[email protected]> Cc: Catalin Marinas <[email protected]> Cc: Chuhong Yuan <[email protected]> Cc: Dave Hansen <[email protected]> Cc: Dave Jiang <[email protected]> Cc: Fenghua Yu <[email protected]> Cc: "H. Peter Anvin" <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Jonathan Cameron <[email protected]> Cc: Kaly Xin <[email protected]> Cc: Logan Gunthorpe <[email protected]> Cc: Masahiro Yamada <[email protected]> Cc: Mike Rapoport <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Rich Felker <[email protected]> Cc: Thomas Gleixner <[email protected]> Cc: Tony Luck <[email protected]> Cc: Vishal Verma <[email protected]> Cc: Will Deacon <[email protected]> Cc: Yoshinori Sato <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Linus Torvalds <[email protected]>
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