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Searched refs:kmem (Results 1 – 25 of 58) sorted by relevance

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/linux/lib/tests/
H A Dusercopy_kunit.c36 char *kmem; member
52 char *kmem = priv->kmem; in usercopy_test_check_nonzero_user() local
66 kmem += start; in usercopy_test_check_nonzero_user()
83 memset(kmem, 0x0, size); in usercopy_test_check_nonzero_user()
85 kmem[i] = 0xff; in usercopy_test_check_nonzero_user()
87 kmem[i] = 0xff; in usercopy_test_check_nonzero_user()
89 KUNIT_EXPECT_EQ_MSG(test, copy_to_user(umem, kmem, size), 0, in usercopy_test_check_nonzero_user()
96 int expected = is_zeroed(kmem + start, len); in usercopy_test_check_nonzero_user()
111 char *kmem = priv->kmem; in usercopy_test_copy_struct_from_user() local
132 memset(kmem, 0x0, size); in usercopy_test_copy_struct_from_user()
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/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
/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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/linux/drivers/md/dm-pcache/
H A Dbacking_dev.c97 if (backing_req->kmem.bvecs != backing_req->kmem.inline_bvecs) in backing_dev_req_end()
98 mempool_free(backing_req->kmem.bvecs, &backing_dev->bvec_pool); in backing_dev_req_end()
227 u32 n_vecs = bio_add_max_vecs(opts->kmem.data, opts->kmem.len); in kmem_type_req_alloc()
236 backing_req->kmem.bvecs = mempool_alloc(&backing_dev->bvec_pool, opts->gfp_mask); in kmem_type_req_alloc()
237 if (!backing_req->kmem.bvecs) in kmem_type_req_alloc()
240 backing_req->kmem.bvecs = backing_req->kmem.inline_bvecs; in kmem_type_req_alloc()
243 backing_req->kmem.n_vecs = n_vecs; in kmem_type_req_alloc()
298 bio_init(&backing_req->bio, backing_dev->dm_dev->bdev, backing_req->kmem.bvecs, in kmem_type_req_init()
299 backing_req->kmem.n_vecs, opts->kmem.opf); in kmem_type_req_init()
302 bio_map(backing_bio, opts->kmem.data, opts->kmem.len); in kmem_type_req_init()
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H A Dcache_writeback.c126 writeback_req_opts.kmem.data = addr; in cache_key_writeback()
127 writeback_req_opts.kmem.opf = REQ_OP_WRITE; in cache_key_writeback()
128 writeback_req_opts.kmem.len = req_len; in cache_key_writeback()
129 writeback_req_opts.kmem.backing_off = key->off + done; in cache_key_writeback()
H A Dbacking_dev.h38 } kmem; member
80 } kmem; member
/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/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
38 echo "call_site.function == $target_func" > events/kmem/kmem_cache_free/filter
64 echo "call_site.function == 0x$address" > events/kmem/kmem_cache_free/filter
/linux/drivers/infiniband/hw/mana/
H A Dcq.c147 if (cq->queue.kmem) in mana_ib_install_cq_cb()
148 gdma_cq = cq->queue.kmem; in mana_ib_install_cq_cb()
169 if (cq->queue.kmem) in mana_ib_remove_cq_cb()
180 struct gdma_queue *gdma_cq = cq->queue.kmem; in mana_ib_arm_cq()
192 struct gdma_queue *wq = qp->ud_qp.queues[MANA_UD_SEND_QUEUE].kmem; in handle_ud_sq_cqe()
208 struct gdma_queue *wq = qp->ud_qp.queues[MANA_UD_RECV_QUEUE].kmem; in handle_ud_rq_cqe()
326 struct gdma_queue *queue = cq->queue.kmem; in mana_ib_poll_cq()
H A Dwr.c13 struct gdma_queue *queue = qp->ud_qp.queues[MANA_UD_RECV_QUEUE].kmem; in mana_ib_post_recv_ud()
80 struct gdma_queue *queue = qp->ud_qp.queues[MANA_UD_SEND_QUEUE].kmem; in mana_ib_post_send_ud()
/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.c577 if (mtr->kmem) { in mtr_free_bufs()
578 hns_roce_buf_free(hr_dev, mtr->kmem); in mtr_free_bufs()
579 mtr->kmem = NULL; in mtr_free_bufs()
593 mtr->kmem = NULL; in mtr_alloc_bufs()
603 mtr->kmem = hns_roce_buf_alloc(hr_dev, total_size, in mtr_alloc_bufs()
607 if (IS_ERR(mtr->kmem)) { in mtr_alloc_bufs()
609 mtr->kmem); in mtr_alloc_bufs()
610 return PTR_ERR(mtr->kmem); in mtr_alloc_bufs()
662 mtr->kmem, page_shift); in mtr_map_bufs()
1049 mtr->kmem = NULL; in hns_roce_mtr_create()
/linux/fs/resctrl/
H A Dpseudo_lock.c197 kfree(plr->kmem); in pseudo_lock_region_clear()
198 plr->kmem = NULL; in pseudo_lock_region_clear()
311 plr->kmem = kzalloc(plr->size, GFP_KERNEL); in pseudo_lock_region_alloc()
312 if (!plr->kmem) { in pseudo_lock_region_alloc()
1035 physical = __pa(plr->kmem) >> PAGE_SHIFT; in pseudo_lock_dev_mmap_prepare()
1057 memset(plr->kmem + off, 0, vsize); in pseudo_lock_dev_mmap_prepare()
/linux/Documentation/driver-api/cxl/linux/
H A Doverview.rst82 * kmem - dax device is converted to hotplug memory blocks
84 * DAX kmem IO Resource creation
90 b) DAX kmem surfaces memory region to Memory Hotplug to add to page
/linux/arch/x86/kernel/cpu/resctrl/
H A Dpseudo_lock.c169 mem_r = plr->kmem; in resctrl_arch_pseudo_lock_fn()
255 mem_r = READ_ONCE(plr->kmem); in resctrl_arch_measure_cycles_lat_fn()
360 mem_r = READ_ONCE(plr->kmem); in measure_residency_fn()
/linux/drivers/crypto/nx/
H A Dnx.c285 memset(nx_ctx->kmem, 0, nx_ctx->kmem_len); in nx_ctx_init()
646 nx_ctx->kmem = kmalloc(nx_ctx->kmem_len, GFP_KERNEL); in nx_crypto_ctx_init()
647 if (!nx_ctx->kmem) in nx_crypto_ctx_init()
651 nx_ctx->csbcpb = (struct nx_csbcpb *)(round_up((u64)nx_ctx->kmem, in nx_crypto_ctx_init()
726 kfree_sensitive(nx_ctx->kmem); in nx_crypto_ctx_exit()
742 kfree_sensitive(nx_ctx->kmem); in nx_crypto_ctx_aead_exit()
/linux/mm/kasan/
H A Dkasan_test_c.c2151 char *kmem; in copy_user_test_oob() local
2157 kmem = kunit_kmalloc(test, size, GFP_KERNEL); in copy_user_test_oob()
2158 KUNIT_ASSERT_NOT_ERR_OR_NULL(test, kmem); in copy_user_test_oob()
2172 unused = copy_from_user(kmem, usermem, size + 1)); in copy_user_test_oob()
2174 unused = copy_to_user(usermem, kmem, size + 1)); in copy_user_test_oob()
2176 unused = __copy_from_user(kmem, usermem, size + 1)); in copy_user_test_oob()
2178 unused = __copy_to_user(usermem, kmem, size + 1)); in copy_user_test_oob()
2180 unused = __copy_from_user_inatomic(kmem, usermem, size + 1)); in copy_user_test_oob()
2182 unused = __copy_to_user_inatomic(usermem, kmem, size + 1)); in copy_user_test_oob()
2188 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
/linux/tools/testing/selftests/ftrace/test.d/dynevent/
H A Dadd_remove_tprobe.tc9 SUBSYSTEM=kmem
/linux/Documentation/admin-guide/cgroup-v1/
H A Dmemory.rst100 memory.kmem.limit_in_bytes Deprecated knob to set and read the kernel
106 by memory.kmem.usage_in_bytes.
107 memory.kmem.usage_in_bytes show current kernel memory allocation
108 memory.kmem.failcnt show the number of kernel memory usage
110 memory.kmem.max_usage_in_bytes show max kernel memory usage recorded
112 memory.kmem.tcp.limit_in_bytes set/show hard limit for tcp buf memory
115 memory.kmem.tcp.usage_in_bytes show current tcp buf memory allocation
118 memory.kmem.tcp.failcnt show the number of tcp buf memory usage
122 memory.kmem.tcp.max_usage_in_bytes show max tcp buf memory usage recorded
337 memory.kmem.usage_in_bytes, or in a separate counter when it makes sense.
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/linux/drivers/infiniband/hw/irdma/
H A Dverbs.h129 struct irdma_dma_mem kmem; member
148 struct irdma_dma_mem kmem; member
/linux/tools/perf/scripts/perl/
H A Dcheck-perf-trace.pl43 sub kmem::kmalloc subroutine

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