cm.remote_sidr_table = RB_ROOT;//caq:remote source id xa_init_flags(&cm.local_id_table, XA_FLAGS_ALLOC);//caq:初始化local_id_table,其实是一个xarray get_random_bytes(&cm.random_id_operand, sizeof cm.random_id_operand); INIT_LIST_HEAD(&cm.timewait_list);//caq:初始化timewait的链...
title: linux kernel xarray xchg date: 2021-02-02 00:53:56 内核里的xarray里有xa_cmpxchg,但是我想要无条件交换的xa_xchg,找了一个多小时没找到,结果发现xa_store会返回旧值,相当于无条件交换。 还是太嫩了。
还消除了 client_data_lock 以支持内部 xarray 锁定 dev_set_name err = kobject_set_name_vargs(&dev->kobj, fmt, vargs) __ib_device_get_by_name <- static DEFINE_XARRAY_FLAGS(devices, XA_FLAGS_ALLOC); xa_for_each (&devices, index, device) setup_device(device) -> ib_register_device(...
test_xarray: fix failure in check_pause when CONFIG_XARRAY_MULTI is n… Feb 18, 2025 mm Merge tag 'vfs-6.14-rc5.fixes' of git://git.kernel.org/pub/scm/linux/… Feb 26, 2025 net Merge tag 'bpf-fixes' of git://git.kernel.org/pub/scm/linux/kernel/gi… Feb 21, 2025 ...
克隆kernel-grok项目 cd ~ git clone https://github.com/habemus-papadum/kernel-grok 回到内核目录,生成CMakeLists.txt cd linux-5.14.2 ~/kernel-grok/generate_cmake ## creates CMakeLists.txt 修改CMakeLists.txt 这个时候需要我们手动添加一些参数配置 在文件的最开头添加以下内容: ...
source "mm/Kconfig.debug" config DEBUG_OBJECTS bool "Debug object operations" depends on DEBUG_KERNEL help If you say Y here, additional code will be inserted into the kernel to track the life time of various objects and validate the operations on those objects. config DE...
linux kernel xarray xchg 内核里的xarray里有xa_cmpxchg,但是我想要无条件交换的xa_xchg,找了一个多小时没找到,结果发现xa_store会返回旧值,相当于无条件交换。 还是太嫩了。
static size_t __copy_page_to_iter(struct page *page, size_t offset, size_t bytes, struct iov_iter *i) { if (likely(iter_is_iovec(i))) return copy_page_to_iter_iovec(page, offset, bytes, i); if (iov_iter_is_bvec(i) || iov_iter_is_kvec(i) || iov_iter_is_xarray(i))...
page cache: Convert find_get_pages_contig to XArray Oct 21, 2018 .cocciconfig scripts: add Linux .cocciconfig for coccinelle Jul 22, 2016 .get_maintainer.ignore Add hch to .get_maintainer.ignore Aug 22, 2015 .gitattributes .gitattributes: set git diff driver for C source code files ...
(xas, &mapping->i_pages, folio->index); long nr = 1; mapping_set_update(&xas, mapping); /* hugetlb pages are represented by a single entry in the xarray */ if (!folio_test_hugetlb(folio)) { xas_set_order(&xas, folio->index, folio_order(folio)); nr = folio_nr_pages(...