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/linux/Documentation/translations/zh_CN/core-api/
H A 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`
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，
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
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/drivers/misc/lkdtm/
H A Dheap.c46 * This tries to stay within the next largest power-of-2 kmalloc cache
56 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(51 in lkdtm_SLAB_INIT_ON_ALLOC()
[all...]
/linux/mm/kasan/
H A Dkasan_test_c.c168 ptr = kmalloc(size, GFP_KERNEL); in kmalloc_oob_right()
173 * An unaligned access past the requested kmalloc size. in kmalloc_oob_right()
181 * within the aligned kmalloc object. in kmalloc_oob_right()
185 /* Out-of-bounds access past the aligned kmalloc object. */ in kmalloc_oob_right()
197 ptr = kmalloc(size, GFP_KERNEL); in kmalloc_oob_left()
250 * via kmalloc(). But not as big as to trigger the page_alloc fallback.
257 ptr = kmalloc(size, GFP_KERNEL); in kmalloc_big_oob_right()
266 * The kmalloc_large_* tests below use kmalloc() to allocate a memory chunk
276 ptr = kmalloc(size, GFP_KERNEL); in kmalloc_large_oob_right()
290 ptr = kmalloc(siz in kmalloc_large_uaf()
[all...]
/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/null || \
47 fail "sym modifier on kmalloc call_site did not work"
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/kmalloc/hist > /dev/null || \
56 fail "sym-offset modifier on kmalloc call_site did not work"
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 || \
48 fail "log2 modifier on kmem/kmalloc did not work"
/linux/scripts/coccinelle/api/alloc/
H A 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/scripts/coccinelle/api/
H A 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(siz
[all...]
H A 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);
H A 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].line, va[0].line)
227 msg = "WARNING kmalloc (line %s) && vmalloc (line %s) are used to allocate this memory" % (ka[0].line, va[0].line)
H A 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/tools/include/linux/
H A Dslab.h11 #define kzalloc_node(size, flags, node) kmalloc(size, flags)
13 void *kmalloc(size_t size, gfp_t gfp);
28 return kmalloc(size, gfp | __GFP_ZERO); in kzalloc()
/linux/drivers/usb/misc/
H A 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/tools/virtio/linux/
H A 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/scripts/coccinelle/null/
H A 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/net/bluetooth/
H A 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/drivers/acpi/
H A 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/fs/cachefiles/
H A 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/drivers/xen/
H A 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/lib/zlib_inflate/
H A 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()
/linux/tools/virtio/ringtest/
H A 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/fs/squashfs/
H A 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/fs/quota/
H A 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(inf in find_tree_dqentry()
[all...]
/linux/drivers/net/ovpn/
H A Dcrypto_aead.c75 ovpn_skb_cb(skb)->sg = kmalloc(sizeof(*ovpn_skb_cb(skb)->sg) * in ovpn_aead_encrypt()
109 ovpn_skb_cb(skb)->iv = kmalloc(OVPN_NONCE_SIZE, GFP_ATOMIC); in ovpn_aead_encrypt()
188 ovpn_skb_cb(skb)->sg = kmalloc(sizeof(*ovpn_skb_cb(skb)->sg) * in ovpn_aead_decrypt()
217 ovpn_skb_cb(skb)->iv = kmalloc(OVPN_NONCE_SIZE, GFP_ATOMIC); in ovpn_aead_decrypt()
331 ks = kmalloc(sizeof(*ks), GFP_KERNEL); in ovpn_aead_crypto_key_slot_new()
/linux/drivers/media/usb/dvb-usb/
H A Ddibusb-common.c66 b = kmalloc(3, GFP_KERNEL); in dibusb_power_ctrl()
89 b = kmalloc(3, GFP_KERNEL); in dibusb2_0_streaming_ctrl()
122 b = kmalloc(3, GFP_KERNEL); in dibusb2_0_power_ctrl()
149 sndbuf = kmalloc(MAX_XFER_SIZE, GFP_KERNEL); in dibusb_i2c_msg()
380 buf = kmalloc(5, GFP_KERNEL); in dibusb_rc_query()
/linux/drivers/isdn/capi/
H A Dcapiutil.c403 nb = kmalloc(ns, GFP_ATOMIC); in bufprint()
541 cdb = kmalloc(sizeof(_cdebbuf), GFP_ATOMIC); in cdebbuf_alloc()
544 cdb->buf = kmalloc(CDEBUG_SIZE, GFP_ATOMIC); in cdebbuf_alloc()
595 cmsg = kmalloc(sizeof(_cmsg), GFP_ATOMIC); in capi_message2str()
621 g_cmsg = kmalloc(sizeof(_cmsg), GFP_KERNEL); in cdebug_init()
624 g_debbuf = kmalloc(sizeof(_cdebbuf), GFP_KERNEL); in cdebug_init()
629 g_debbuf->buf = kmalloc(CDEBUG_GSIZE, GFP_KERNEL); in cdebug_init()

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