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/linux-6.12.1/samples/kmemleak/
Dkmemleak-test.c43 pr_info("kmalloc(32) = %p\n", kmalloc(32, GFP_KERNEL)); in kmemleak_test_init()
44 pr_info("kmalloc(32) = %p\n", kmalloc(32, GFP_KERNEL)); in kmemleak_test_init()
45 pr_info("kmalloc(1024) = %p\n", kmalloc(1024, GFP_KERNEL)); in kmemleak_test_init()
46 pr_info("kmalloc(1024) = %p\n", kmalloc(1024, GFP_KERNEL)); in kmemleak_test_init()
47 pr_info("kmalloc(2048) = %p\n", kmalloc(2048, GFP_KERNEL)); in kmemleak_test_init()
48 pr_info("kmalloc(2048) = %p\n", kmalloc(2048, GFP_KERNEL)); in kmemleak_test_init()
49 pr_info("kmalloc(4096) = %p\n", kmalloc(4096, GFP_KERNEL)); in kmemleak_test_init()
50 pr_info("kmalloc(4096) = %p\n", kmalloc(4096, GFP_KERNEL)); in kmemleak_test_init()
77 per_cpu(kmemleak_test_pointer, i) = kmalloc(129, GFP_KERNEL); in kmemleak_test_init()
/linux-6.12.1/Documentation/translations/zh_CN/core-api/
Dmemory-allocation.rst19 Linux为内存分配提供了多种API。你可以使用 `kmalloc` 或 `kmem_cache_alloc`
109 分配内存的最直接的方法是使用kmalloc()系列的函数。而且，为了安全起见，最好使用将内存
114 可以用 `kmalloc` 分配的块的最大尺寸是有限的。实际的限制取决于硬件和内核配置，但是对于
115 小于页面大小的对象，使用 `kmalloc` 是一个好的做法。
117 用 `kmalloc` 分配的块的地址至少要对齐到ARCH_KMALLOC_MINALIGN字节。对于2的幂的大小，
120 用kmalloc()分配的块可以用krealloc()调整大小。与kmalloc_array()类似：以krealloc_array()
126 如果你不确定分配的大小对 `kmalloc` 来说是否太大，可以使用kvmalloc()及其派生函数。它将尝
127 试用kmalloc分配内存，如果分配失败，将用 `vmalloc` 重新尝试。对于哪些GFP标志可以与 `kvmalloc`
136 当分配的内存不再需要时，它必须被释放。你可以使用kvfree()来处理用 `kmalloc` 、 `vmalloc`
/linux-6.12.1/drivers/staging/rtl8712/
Drtl871x_cmd.c55 pcmdpriv->cmd_allocated_buf = kmalloc(MAX_CMDSZ + CMDBUFF_ALIGN_SZ, in r8712_init_cmd_priv()
62 pcmdpriv->rsp_allocated_buf = kmalloc(MAX_RSPSZ + 4, GFP_ATOMIC); in r8712_init_cmd_priv()
80 pevtpriv->evt_allocated_buf = kmalloc(MAX_EVTSZ + 4, GFP_ATOMIC); in r8712_init_evt_priv()
180 ph2c = kmalloc(sizeof(*ph2c), GFP_ATOMIC); in r8712_sitesurvey_cmd()
183 psurveyPara = kmalloc(sizeof(*psurveyPara), GFP_ATOMIC); in r8712_sitesurvey_cmd()
215 ph2c = kmalloc(sizeof(*ph2c), GFP_ATOMIC); in r8712_setdatarate_cmd()
218 pbsetdataratepara = kmalloc(sizeof(*pbsetdataratepara), GFP_ATOMIC); in r8712_setdatarate_cmd()
237 ph2c = kmalloc(sizeof(*ph2c), GFP_ATOMIC); in r8712_set_chplan_cmd()
240 psetchplanpara = kmalloc(sizeof(*psetchplanpara), GFP_ATOMIC); in r8712_set_chplan_cmd()
256 ph2c = kmalloc(sizeof(*ph2c), GFP_ATOMIC); in r8712_setrfreg_cmd()
[all …]
/linux-6.12.1/drivers/misc/lkdtm/
Dheap.c56 u32 *data = kmalloc(len, GFP_KERNEL); in lkdtm_SLAB_LINEAR_OVERFLOW()
77 base = kmalloc(len, GFP_KERNEL); in lkdtm_WRITE_AFTER_FREE()
86 again = kmalloc(len, GFP_KERNEL); in lkdtm_WRITE_AFTER_FREE()
104 base = kmalloc(len, GFP_KERNEL); in lkdtm_READ_AFTER_FREE()
110 val = kmalloc(len, GFP_KERNEL); in lkdtm_READ_AFTER_FREE()
161 base = kmalloc(len, GFP_KERNEL); in lkdtm_KFENCE_READ_AFTER_FREE()
225 val = kmalloc(1024, GFP_KERNEL); in lkdtm_READ_BUDDY_AFTER_FREE()
256 first = kmalloc(512, GFP_KERNEL); in lkdtm_SLAB_INIT_ON_ALLOC()
265 val = kmalloc(512, GFP_KERNEL); in lkdtm_SLAB_INIT_ON_ALLOC()
/linux-6.12.1/mm/kasan/
Dkasan_test_c.c166 ptr = kmalloc(size, GFP_KERNEL); in kmalloc_oob_right()
195 ptr = kmalloc(size, GFP_KERNEL); in kmalloc_oob_left()
225 ptr = kmalloc(size, GFP_KERNEL); in kmalloc_big_oob_right()
244 ptr = kmalloc(size, GFP_KERNEL); in kmalloc_large_oob_right()
258 ptr = kmalloc(size, GFP_KERNEL); in kmalloc_large_uaf()
270 ptr = kmalloc(size, GFP_KERNEL); in kmalloc_large_invalid_free()
321 ptr1 = kmalloc(size1, GFP_KERNEL); in krealloc_more_oob_helper()
356 ptr1 = kmalloc(size1, GFP_KERNEL); in krealloc_less_oob_helper()
423 ptr1 = kmalloc(size1, GFP_KERNEL); in krealloc_uaf()
444 ptr1 = RELOC_HIDE(kmalloc(sizeof(*ptr1) - 3, GFP_KERNEL), 0); in kmalloc_oob_16()
[all …]
/linux-6.12.1/tools/testing/selftests/ftrace/test.d/trigger/
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 …[0-9a-f][0-9a-f]*\] [_a-zA-Z][_a-zA-Z]*+0x[0-9a-f][0-9a-f]*' events/kmem/kmalloc/hist > /dev/null …
/linux-6.12.1/scripts/coccinelle/api/alloc/
Dalloc_cast.cocci3 /// like kmalloc, kzalloc, kmem_cache_alloc, kmem_cache_zalloc etc.
6 //# kmalloc, kzalloc, kcalloc, kmem_cache_alloc, kmem_cache_zalloc,
34 \(kmalloc\|kzalloc\|kcalloc\|kmem_cache_alloc\|kmem_cache_zalloc\|
57 \(kmalloc\|kzalloc\|kcalloc\|kmem_cache_alloc\|kmem_cache_zalloc\|
80 \(kmalloc\|kzalloc\|kcalloc\|kmem_cache_alloc\|kmem_cache_zalloc\|
97 \(kmalloc\|kzalloc\|kcalloc\|kmem_cache_alloc\|kmem_cache_zalloc\|
/linux-6.12.1/scripts/coccinelle/api/
Dkvmalloc.cocci3 /// Find if/else condition with kmalloc/vmalloc calls.
35 * E = \(kmalloc\|kzalloc\|kcalloc\|kmalloc_node\|kzalloc_node\|
45 * E = \(kmalloc\|kzalloc\|kcalloc\|kmalloc_node\|kzalloc_node\|
57 * T x = \(kmalloc\|kzalloc\|kcalloc\|kmalloc_node\|kzalloc_node\|
95 - E = kmalloc(size, flags);
101 - E = kmalloc(size, \(GFP_KERNEL\|GFP_KERNEL|__GFP_NOWARN\));
106 - E = kmalloc(size, flags | __GFP_NOWARN);
111 - E = kmalloc(size, \(GFP_KERNEL\|GFP_KERNEL|__GFP_NOWARN\));
116 - T x = kmalloc(size, flags | __GFP_NOWARN);
121 - T x = kmalloc(size, \(GFP_KERNEL\|GFP_KERNEL|__GFP_NOWARN\));
Dkfree_mismatch.cocci25 E = \(kmalloc\|kzalloc\|krealloc\|kcalloc\|
38 E = \(kmalloc\|kzalloc\|krealloc\|kcalloc\|kmalloc_node\|kzalloc_node\|
68 * E = \(kmalloc\|kzalloc\|krealloc\|kcalloc\|kmalloc_node\|
82 E = \(kmalloc\|kzalloc\|krealloc\|kcalloc\|kmalloc_node\|
169 msg = "WARNING kmalloc is used to allocate this memory at line %s" % (a[0].line)
177 msg = "WARNING kmalloc is used to allocate this memory at line %s" % (a[0].line)
218 msg = "WARNING kmalloc (line %s) && vmalloc (line %s) are used to allocate this memory" % (ka[0].li…
227 msg = "WARNING kmalloc (line %s) && vmalloc (line %s) are used to allocate this memory" % (ka[0].li…
Dmemdup.cocci23 to = \(kmalloc@p\|kzalloc@p\)(strlen(from) + 1,flag);
33 to = \(kmalloc@p\|kzalloc@p\)(x,flag);
41 - to = \(kmalloc@p\|kzalloc@p\)(size,flag);
52 * to = \(kmalloc@p\|kzalloc@p\)(size,flag);
Dkstrdup.cocci23 - to = kmalloc(strlen(from) + 1,flag);
38 - to = \(kmalloc\|kzalloc\)(x,flag);
54 * to = kmalloc@p1(strlen(from) + 1,flag);
69 * to = \(kmalloc@p1\|kzalloc@p1\)(x,flag);
/linux-6.12.1/tools/include/linux/
Dslab.h11 #define kzalloc_node(size, flags, node) kmalloc(size, flags)
13 void *kmalloc(size_t size, gfp_t gfp);
27 return kmalloc(size, gfp | __GFP_ZERO); in kzalloc()
/linux-6.12.1/drivers/usb/misc/
Dcytherm.c84 buffer = kmalloc(8, GFP_KERNEL); in brightness_store()
127 buffer = kmalloc(8, GFP_KERNEL); in temp_show()
162 buffer = kmalloc(8, GFP_KERNEL); in button_show()
191 buffer = kmalloc(8, GFP_KERNEL); in port0_show()
216 buffer = kmalloc(8, GFP_KERNEL); in port0_store()
246 buffer = kmalloc(8, GFP_KERNEL); in port1_show()
271 buffer = kmalloc(8, GFP_KERNEL); in port1_store()
/linux-6.12.1/tools/virtio/linux/
Dkernel.h56 static inline void *kmalloc(size_t s, gfp_t gfp) in kmalloc() function
64 return kmalloc(n * s, gfp); in kmalloc_array()
69 void *p = kmalloc(s, gfp); in kzalloc()
77 return kmalloc(s, gfp); in alloc_pages_exact()
/linux-6.12.1/scripts/coccinelle/null/
Dkmerr.cocci2 /// This semantic patch looks for kmalloc etc that are not followed by a
5 /// in determining what the error handling code for the call to kmalloc etc
38 *x@p1 = \(kmalloc\|kzalloc\|kcalloc\)(...);
54 x@p1 = \(kmalloc\|kzalloc\|kcalloc\)(...);
/linux-6.12.1/net/bluetooth/
Decdh_helper.c53 tmp = kmalloc(64, GFP_KERNEL); in compute_ecdh_secret()
109 tmp = kmalloc(32, GFP_KERNEL); in set_ecdh_privkey()
118 buf = kmalloc(buf_len, GFP_KERNEL); in set_ecdh_privkey()
153 tmp = kmalloc(64, GFP_KERNEL); in generate_ecdh_public_key()
/linux-6.12.1/drivers/acpi/
Dprocessor_pdc.c35 obj_list = kmalloc(sizeof(struct acpi_object_list), GFP_KERNEL); in acpi_processor_alloc_pdc()
39 obj = kmalloc(sizeof(union acpi_object), GFP_KERNEL); in acpi_processor_alloc_pdc()
45 buf = kmalloc(12, GFP_KERNEL); in acpi_processor_alloc_pdc()
/linux-6.12.1/drivers/pci/hotplug/
Dcpqphp_pci.c163 fakedev = kmalloc(sizeof(*fakedev), GFP_KERNEL); in cpqhp_set_irq()
164 fakebus = kmalloc(sizeof(*fakebus), GFP_KERNEL); in cpqhp_set_irq()
733 bus_node = kmalloc(sizeof(*bus_node), GFP_KERNEL); in cpqhp_save_used_resources()
748 io_node = kmalloc(sizeof(*io_node), GFP_KERNEL); in cpqhp_save_used_resources()
764 mem_node = kmalloc(sizeof(*mem_node), GFP_KERNEL); in cpqhp_save_used_resources()
780 p_mem_node = kmalloc(sizeof(*p_mem_node), GFP_KERNEL); in cpqhp_save_used_resources()
811 io_node = kmalloc(sizeof(*io_node), in cpqhp_save_used_resources()
829 p_mem_node = kmalloc(sizeof(*p_mem_node), in cpqhp_save_used_resources()
846 mem_node = kmalloc(sizeof(*mem_node), in cpqhp_save_used_resources()
883 io_node = kmalloc(sizeof(*io_node), in cpqhp_save_used_resources()
[all …]
/linux-6.12.1/drivers/xen/
Dsys-hypervisor.c107 extra = kmalloc(XEN_EXTRAVERSION_LEN, GFP_KERNEL); in extra_show()
185 info = kmalloc(sizeof(struct xen_compile_info), GFP_KERNEL); in compiler_show()
203 info = kmalloc(sizeof(struct xen_compile_info), GFP_KERNEL); in compiled_by_show()
221 info = kmalloc(sizeof(struct xen_compile_info), GFP_KERNEL); in compile_date_show()
258 caps = kmalloc(XEN_CAPABILITIES_INFO_LEN, GFP_KERNEL); in capabilities_show()
276 cset = kmalloc(XEN_CHANGESET_INFO_LEN, GFP_KERNEL); in changeset_show()
294 parms = kmalloc(sizeof(struct xen_platform_parameters), GFP_KERNEL); in virtual_start_show()
370 buildid = kmalloc(sizeof(*buildid) + ret, GFP_KERNEL); in buildid_show()
/linux-6.12.1/arch/mips/loongson64/
Dreset.c156 kexec_argv = kmalloc(KEXEC_ARGV_SIZE, GFP_KERNEL); in mips_reboot_setup()
160 kdump_argv = kmalloc(KEXEC_ARGV_SIZE, GFP_KERNEL); in mips_reboot_setup()
164 kexec_envp = kmalloc(KEXEC_ENVP_SIZE, GFP_KERNEL); in mips_reboot_setup()
/linux-6.12.1/fs/cachefiles/
Dkey.c58 name = kmalloc(len + 1, GFP_KERNEL); in cachefiles_cook_key()
87 name = kmalloc(nlen, GFP_KERNEL); in cachefiles_cook_key()
107 name = kmalloc(b64len + 1, GFP_KERNEL); in cachefiles_cook_key()
/linux-6.12.1/fs/quota/
Dquota_tree.c117 char *buf = kmalloc(info->dqi_usable_bs, GFP_KERNEL); in get_free_dqblk()
169 char *tmpbuf = kmalloc(info->dqi_usable_bs, GFP_KERNEL); in remove_free_dqentry()
216 char *tmpbuf = kmalloc(info->dqi_usable_bs, GFP_KERNEL); in insert_free_dqentry()
264 char *buf = kmalloc(info->dqi_usable_bs, GFP_KERNEL); in find_free_dqentry()
338 char *buf = kmalloc(info->dqi_usable_bs, GFP_KERNEL); in do_insert_tree()
444 char *ddquot = kmalloc(info->dqi_entry_size, GFP_KERNEL); in qtree_write_dquot()
483 char *buf = kmalloc(info->dqi_usable_bs, GFP_KERNEL); in free_dqentry()
547 char *buf = kmalloc(info->dqi_usable_bs, GFP_KERNEL); in remove_tree()
625 char *buf = kmalloc(info->dqi_usable_bs, GFP_KERNEL); in find_block_dqentry()
663 char *buf = kmalloc(info->dqi_usable_bs, GFP_KERNEL); in find_tree_dqentry()
[all …]
/linux-6.12.1/tools/virtio/ringtest/
Dptr_ring.c27 static void *kmalloc(unsigned size, gfp_t gfp) in kmalloc() function
40 return kmalloc(size, flags | __GFP_ZERO); in kzalloc()
47 return kmalloc(n * size, flags); in kmalloc_array()
/linux-6.12.1/fs/squashfs/
Dpage_actor.c46 struct squashfs_page_actor *actor = kmalloc(sizeof(*actor), GFP_KERNEL); in squashfs_page_actor_init()
113 struct squashfs_page_actor *actor = kmalloc(sizeof(*actor), GFP_KERNEL); in squashfs_page_actor_init_special()
119 actor->tmp_buffer = kmalloc(PAGE_SIZE, GFP_KERNEL); in squashfs_page_actor_init_special()
/linux-6.12.1/lib/zlib_inflate/
Dinfutil.c17 strm = kmalloc(sizeof(*strm), GFP_KERNEL); in zlib_inflate_blob()
20 strm->workspace = kmalloc(zlib_inflate_workspacesize(), GFP_KERNEL); in zlib_inflate_blob()

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