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Merge branch 'akpm' (patches from Andrew)

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Merge misc fixes from Andrew Morton:
 "The usual shower of hotfixes.

  Chris's memcg patches aren't actually fixes - they're mature but a few
  niggling review issues were late to arrive.

  The ocfs2 fixes are quite old - those took some time to get reviewer
  attention.

  Subsystems affected by this patch series: ocfs2, hotfixes, mm/memcg,
  mm/slab-generic"

* emailed patches from Andrew Morton <akpm@linux-foundation.org>:
  mm, sl[aou]b: guarantee natural alignment for kmalloc(power-of-two)
  mm, sl[ou]b: improve memory accounting
  mm, memcg: make scan aggression always exclude protection
  mm, memcg: make memory.emin the baseline for utilisation determination
  mm, memcg: proportional memory.{low,min} reclaim
  mm/vmpressure.c: fix a signedness bug in vmpressure_register_event()
  mm/page_alloc.c: fix a crash in free_pages_prepare()
  mm/z3fold.c: claim page in the beginning of free
  kernel/sysctl.c: do not override max_threads provided by userspace
  memcg: only record foreign writebacks with dirty pages when memcg is not disabled
  mm: fix -Wmissing-prototypes warnings
  writeback: fix use-after-free in finish_writeback_work()
  mm/memremap: drop unused SECTION_SIZE and SECTION_MASK
  panic: ensure preemption is disabled during panic()
  fs: ocfs2: fix a possible null-pointer dereference in ocfs2_info_scan_inode_alloc()
  fs: ocfs2: fix a possible null-pointer dereference in ocfs2_write_end_nolock()
  fs: ocfs2: fix possible null-pointer dereferences in ocfs2_xa_prepare_entry()
  ocfs2: clear zero in unaligned direct IO
This commit is contained in:
Linus Torvalds
2019-10-07 16:04:19 -07:00
parent c512c69187 59bb47985c
commit eda57a0e42
21 changed files with 281 additions and 89 deletions
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4
kernel/fork.c
View File

@@ -2925,7 +2925,7 @@ int sysctl_max_threads(struct ctl_table *table, int write,
struct ctl_table t;
int ret;
int threads = max_threads;
int min = MIN_THREADS;
int min = 1;
int max = MAX_THREADS;
t = *table;
@@ -2937,7 +2937,7 @@ int sysctl_max_threads(struct ctl_table *table, int write,
if (ret || !write)
return ret;
set_max_threads(threads);
max_threads = threads;
return 0;
}

1
kernel/panic.c
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@@ -180,6 +180,7 @@ void panic(const char *fmt, ...)
* after setting panic_cpu) from invoking panic() again.
*/
local_irq_disable();
preempt_disable_notrace();
/*
* It's possible to come here directly from a panic-assertion and