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Searched refs:kmem (Results 1 – 25 of 36) sorted by relevance

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/linux/lib/
H A Dusercopy_kunit.c35 char *kmem; member
51 char *kmem = priv->kmem; in usercopy_test_check_nonzero_user() local
65 kmem += start; in usercopy_test_check_nonzero_user()
82 memset(kmem, 0x0, size); in usercopy_test_check_nonzero_user()
84 kmem[i] = 0xff; in usercopy_test_check_nonzero_user()
86 kmem[i] = 0xff; in usercopy_test_check_nonzero_user()
88 KUNIT_EXPECT_EQ_MSG(test, copy_to_user(umem, kmem, size), 0, in usercopy_test_check_nonzero_user()
95 int expected = is_zeroed(kmem + start, len); in usercopy_test_check_nonzero_user()
110 char *kmem = priv->kmem; in usercopy_test_copy_struct_from_user() local
131 memset(kmem, 0x0, size); in usercopy_test_copy_struct_from_user()
[all …]
/linux/tools/perf/Documentation/
H A Dexamples.txt14 kmem:kmalloc [Tracepoint event]
15 kmem:kmem_cache_alloc [Tracepoint event]
16 kmem:kmalloc_node [Tracepoint event]
17 kmem:kmem_cache_alloc_node [Tracepoint event]
18 kmem:kfree [Tracepoint event]
19 kmem:kmem_cache_free [Tracepoint event]
20 kmem:mm_page_free [Tracepoint event]
21 kmem:mm_page_free_batched [Tracepoint event]
22 kmem:mm_page_alloc [Tracepoint event]
23 kmem:mm_page_alloc_zone_locked [Tracepoint event]
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H A Dperf-kmem.txt1 perf-kmem(1)
6 perf-kmem - Tool to trace/measure kernel memory properties
11 'perf kmem' [<options>] {record|stat}
15 There are two variants of perf kmem:
17 'perf kmem [<options>] record [<perf-record-options>] <command>' to
18 record the kmem events of an arbitrary workload. Additional 'perf
22 'perf kmem [<options>] stat' to report kernel memory statistics.
67 Show live page stat. The perf kmem shows total allocation stat by
H A Dperf.txt93 linkperf:perf-kmem[1], linkperf:perf-kvm[1], linkperf:perf-lock[1],
/linux/Documentation/trace/
H A Dtracepoint-analysis.rst98 -e kmem:mm_page_alloc -e kmem:mm_page_free \
99 -e kmem:mm_page_free_batched \
103 9630 kmem:mm_page_alloc
104 2143 kmem:mm_page_free
105 7424 kmem:mm_page_free_batched
125 $ perf stat -e kmem:mm_page_alloc -e kmem:mm_page_free \
126 -e kmem:mm_page_free_batched ./hackbench 10
131 17803 kmem:mm_page_alloc
132 12398 kmem:mm_page_free
133 4827 kmem:mm_page_free_batched
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H A Devents.rst461 # echo 'enable_event:kmem:kmalloc:1' > \
468 # echo 'disable_event:kmem:kmalloc' > \
478 # echo '!enable_event:kmem:kmalloc:1' > \
481 # echo '!disable_event:kmem:kmalloc' > \
487 kmem:kmalloc and sched:sched_switch, but can't have two kmem:kmalloc
488 versions such as kmem:kmalloc and kmem:kmalloc:1 or 'kmem:kmalloc if
489 bytes_req == 256' and 'kmem:kmalloc if bytes_alloc == 256' (they
490 could be combined into a single filter on kmem:kmalloc though).
501 /sys/kernel/tracing/events/kmem/kmalloc/trigger
507 /sys/kernel/tracing/events/kmem/kmalloc/trigger
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H A Devents-kmem.rst2 Subsystem Trace Points: kmem
5 The kmem tracing system captures events related to object and page allocation
/linux/tools/testing/selftests/ftrace/test.d/filter/
H A Devent-filter-function.tc13 echo 1 > events/kmem/kmem_cache_free/enable
17 echo 0 > events/kmem/kmem_cache_free/enable
34 echo "call_site.function == $target_func" > events/kmem/kmem_cache_free/filter
60 echo "call_site.function == 0x$address" > events/kmem/kmem_cache_free/filter
/linux/tools/testing/selftests/ftrace/test.d/trigger/
H A Dtrigger-hist.tc44 echo 'hist:keys=call_site.sym' > events/kmem/kmalloc/trigger
46 grep '{ call_site: \[[0-9a-f][0-9a-f]*\] [_a-zA-Z][_a-zA-Z]* *}' events/kmem/kmalloc/hist > /dev/nu…
53 echo 'hist:keys=call_site.sym-offset' > events/kmem/kmalloc/trigger
55 grep '{ call_site: \[[0-9a-f][0-9a-f]*\] [_a-zA-Z][_a-zA-Z]*+0x[0-9a-f][0-9a-f]*' events/kmem/kmall…
H A Dtrigger-hist-mod.tc45 echo 'hist:keys=bytes_req.log2' > events/kmem/kmalloc/trigger
47 grep 'bytes_req: ~ 2^[0-9]*' events/kmem/kmalloc/hist > /dev/null || \
/linux/tools/perf/scripts/perl/bin/
H A Dcheck-perf-trace-record2 perf record -a -e kmem:kmalloc -e irq:softirq_entry -e kmem:kfree
/linux/drivers/infiniband/hw/hns/
H A Dhns_roce_mr.c683 if (mtr->kmem) { in mtr_free_bufs()
684 hns_roce_buf_free(hr_dev, mtr->kmem); in mtr_free_bufs()
685 mtr->kmem = NULL; in mtr_free_bufs()
699 mtr->kmem = NULL; in mtr_alloc_bufs()
709 mtr->kmem = hns_roce_buf_alloc(hr_dev, total_size, in mtr_alloc_bufs()
713 if (IS_ERR(mtr->kmem)) { in mtr_alloc_bufs()
715 PTR_ERR(mtr->kmem)); in mtr_alloc_bufs()
716 return PTR_ERR(mtr->kmem); in mtr_alloc_bufs()
768 mtr->kmem, page_shift); in mtr_map_bufs()
1154 mtr->kmem = NULL; in hns_roce_mtr_create()
/linux/drivers/crypto/nx/
H A Dnx.c309 memset(nx_ctx->kmem, 0, nx_ctx->kmem_len); in nx_ctx_init()
670 nx_ctx->kmem = kmalloc(nx_ctx->kmem_len, GFP_KERNEL); in nx_crypto_ctx_init()
671 if (!nx_ctx->kmem) in nx_crypto_ctx_init()
675 nx_ctx->csbcpb = (struct nx_csbcpb *)(round_up((u64)nx_ctx->kmem, in nx_crypto_ctx_init()
750 kfree_sensitive(nx_ctx->kmem); in nx_crypto_ctx_exit()
766 kfree_sensitive(nx_ctx->kmem); in nx_crypto_ctx_aead_exit()
H A Dnx.h119 void *kmem; /* unaligned, kmalloc'd buffer */ member
/linux/mm/kasan/
H A Dkasan_test_c.c2000 char *kmem; in copy_user_test_oob() local
2006 kmem = kunit_kmalloc(test, size, GFP_KERNEL); in copy_user_test_oob()
2007 KUNIT_ASSERT_NOT_ERR_OR_NULL(test, kmem); in copy_user_test_oob()
2021 unused = copy_from_user(kmem, usermem, size + 1)); in copy_user_test_oob()
2023 unused = copy_to_user(usermem, kmem, size + 1)); in copy_user_test_oob()
2025 unused = __copy_from_user(kmem, usermem, size + 1)); in copy_user_test_oob()
2027 unused = __copy_to_user(usermem, kmem, size + 1)); in copy_user_test_oob()
2029 unused = __copy_from_user_inatomic(kmem, usermem, size + 1)); in copy_user_test_oob()
2031 unused = __copy_to_user_inatomic(usermem, kmem, size + 1)); in copy_user_test_oob()
2037 memset(kmem, 'a', size); in copy_user_test_oob()
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/linux/drivers/dax/
H A DMakefile4 obj-$(CONFIG_DEV_DAX_KMEM) += kmem.o
H A DKconfig77 device_dax driver and bound to this kmem driver on each boot.
/linux/tools/perf/scripts/perl/
H A Dcheck-perf-trace.pl43 sub kmem::kmalloc subroutine
/linux/tools/perf/
H A Dcommand-list.txt19 perf-kmem mainporcelain traceevent
H A DBuild26 perf-$(CONFIG_LIBTRACEEVENT) += builtin-kmem.o
H A Dperf-completion.sh218 if [[ $prev_skip_opts == @(kvm|kmem|mem|lock|sched|
/linux/Documentation/translations/zh_CN/core-api/
H A Dmemory-allocation.rst53 * 从用户空间触发的不可信任的分配应该是kmem核算的对象，必须设置 ``__GFP_ACCOUNT`` 位。
/linux/drivers/infiniband/hw/irdma/
H A Dverbs.h126 struct irdma_dma_mem kmem; member
H A Dverbs.c1789 dma_free_coherent(rf->sc_dev.hw->device, iwcq->kmem.size, in irdma_cq_free_rsrc()
1790 iwcq->kmem.va, iwcq->kmem.pa); in irdma_cq_free_rsrc()
1791 iwcq->kmem.va = NULL; in irdma_cq_free_rsrc()
2001 cq_buf->kmem_buf = iwcq->kmem; in irdma_resize_cq()
2006 iwcq->kmem = kmem_buf; in irdma_resize_cq()
2164 iwcq->kmem.size = ALIGN(round_up(rsize, 256), 256); in irdma_create_cq()
2165 iwcq->kmem.va = dma_alloc_coherent(dev->hw->device, in irdma_create_cq()
2166 iwcq->kmem.size, in irdma_create_cq()
2167 &iwcq->kmem.pa, GFP_KERNEL); in irdma_create_cq()
2168 if (!iwcq->kmem.va) { in irdma_create_cq()
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/linux/mm/
H A Dmemcontrol.c1585 K((u64)page_counter_read(&memcg->kmem)), in mem_cgroup_print_oom_meminfo()
1586 K((u64)memcg->kmem.max), memcg->kmem.failcnt); in mem_cgroup_print_oom_meminfo()
3589 page_counter_init(&memcg->kmem, &parent->kmem, false); in mem_cgroup_css_alloc()
3598 page_counter_init(&memcg->kmem, NULL, false); in mem_cgroup_css_alloc()
3732 page_counter_set_max(&memcg->kmem, PAGE_COUNTER_MAX); in mem_cgroup_css_reset()

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