The patch titled
Subject: kfence-limit-currently-covered-allocations-when-pool-nearly-full-fix-fix
has been added to the -mm tree. Its filename is
kfence-limit-currently-covered-allocations-when-pool-nearly-full-fix-fix.patch
This patch should soon appear at
https://ozlabs.org/~akpm/mmots/broken-out/kfence-limit-currently-covered-allocations-when-pool-nearly-full-fix-fix.patch
and later at
https://ozlabs.org/~akpm/mmotm/broken-out/kfence-limit-currently-covered-allocations-when-pool-nearly-full-fix-fix.patch
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*** Remember to use Documentation/process/submit-checklist.rst when testing your code ***
The -mm tree is included into linux-next and is updated
there every 3-4 working days
------------------------------------------------------
From: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Subject: kfence-limit-currently-covered-allocations-when-pool-nearly-full-fix-fix
fix i386 build
In file included from ./include/linux/kernel.h:16,
from ./include/linux/list.h:9,
from ./include/linux/wait.h:7,
from ./include/linux/wait_bit.h:8,
from ./include/linux/fs.h:6,
from ./include/linux/debugfs.h:15,
from mm/kfence/core.c:12:
mm/kfence/core.c: In function 'get_alloc_stack_hash':
./include/linux/minmax.h:20:28: error: comparison of distinct pointer types lacks a cast [-Werror]
20 | (!!(sizeof((typeof(x) *)1 == (typeof(y) *)1)))
| ^~
./include/linux/minmax.h:26:4: note: in expansion of macro '__typecheck'
26 | (__typecheck(x, y) && __no_side_effects(x, y))
| ^~~~~~~~~~~
./include/linux/minmax.h:36:24: note: in expansion of macro '__safe_cmp'
36 | __builtin_choose_expr(__safe_cmp(x, y), \
| ^~~~~~~~~~
./include/linux/minmax.h:45:19: note: in expansion of macro '__careful_cmp'
45 | #define min(x, y) __careful_cmp(x, y, <)
| ^~~~~~~~~~~~~
mm/kfence/core.c:177:16: note: in expansion of macro 'min'
177 | num_entries = min(num_entries, UNIQUE_ALLOC_STACK_DEPTH);
| ^~~
Cc: Aleksandr Nogikh <nogikh@xxxxxxxxxx>
Cc: Alexander Potapenko <glider@xxxxxxxxxx>
Cc: Dmitry Vyukov <dvyukov@xxxxxxxxxx>
Cc: Jann Horn <jannh@xxxxxxxxxx>
Cc: Marco Elver <elver@xxxxxxxxxx>
Cc: Taras Madan <tarasmadan@xxxxxxxxxx>
Cc: Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/kfence/core.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
--- a/mm/kfence/core.c~kfence-limit-currently-covered-allocations-when-pool-nearly-full-fix-fix
+++ a/mm/kfence/core.c
@@ -172,7 +172,7 @@ static inline bool should_skip_covered(v
return atomic_long_read(&counters[KFENCE_COUNTER_ALLOCATED]) > thresh;
}
-static u32 get_alloc_stack_hash(unsigned long *stack_entries, size_t num_entries)
+static u32 get_alloc_stack_hash(unsigned long *stack_entries, unsigned long num_entries)
{
num_entries = min(num_entries, UNIQUE_ALLOC_STACK_DEPTH);
num_entries = filter_irq_stacks(stack_entries, num_entries);
@@ -839,7 +839,7 @@ void kfence_shutdown_cache(struct kmem_c
void *__kfence_alloc(struct kmem_cache *s, size_t size, gfp_t flags)
{
unsigned long stack_entries[KFENCE_STACK_DEPTH];
- size_t num_stack_entries;
+ unsigned long num_stack_entries;
u32 alloc_stack_hash;
/*
_
Patches currently in -mm which might be from akpm@xxxxxxxxxxxxxxxxxxxx are
mm.patch
mm-mempolicy-convert-from-atomic_t-to-refcount_t-on-mempolicy-refcnt-fix.patch
kfence-limit-currently-covered-allocations-when-pool-nearly-full-fix-fix.patch
ipc-check-checkpoint_restore_ns_capable-to-modify-c-r-proc-files-fix.patch
kernel-forkc-export-kernel_thread-to-modules.patch
