Date: Mon, 27 Jul 2026 00:10:47 +0000 From: Bjoern A. Zeeb <bz@FreeBSD.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-branches@FreeBSD.org Subject: git: b17957b9d165 - stable/15 - LinuxKPI: move clear_page() within the linux/page.h file Message-ID: <6a66a207.25f28.484c9a9f@gitrepo.freebsd.org>
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The branch stable/15 has been updated by bz: URL: https://cgit.FreeBSD.org/src/commit/?id=b17957b9d165dbde267213cbb9469739197213d4 commit b17957b9d165dbde267213cbb9469739197213d4 Author: Bjoern A. Zeeb <bz@FreeBSD.org> AuthorDate: 2026-07-17 12:53:16 +0000 Commit: Bjoern A. Zeeb <bz@FreeBSD.org> CommitDate: 2026-07-26 16:48:52 +0000 LinuxKPI: move clear_page() within the linux/page.h file clear_page() would normally live in asm/page.h but adding the file and fixing the dependencies would be too much for a single line. Move the function to the end of the file with a clear separator and make it clear that it does not operate on a 'struct page' but on a page address by changing the argument name and leaving a comment. The function is currently used by at least mthca(4) as the only in-tree consumer, and drm-kmod ttm_pool.c. No functional changes. Sponsored by: The FreeBSD Foundation Reviewed by: emaste Differential Revision: https://reviews.freebsd.org/D58296 (cherry picked from commit 0845efe88b355547b103dca90e69e46a3ebdd016) --- sys/compat/linuxkpi/common/include/linux/page.h | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/sys/compat/linuxkpi/common/include/linux/page.h b/sys/compat/linuxkpi/common/include/linux/page.h index 6f5f37d2fd0f..a8e266af95fd 100644 --- a/sys/compat/linuxkpi/common/include/linux/page.h +++ b/sys/compat/linuxkpi/common/include/linux/page.h @@ -79,7 +79,6 @@ pgprot2cachemode(pgprot_t prot) #define nth_page(page,n) pfn_to_page(page_to_pfn(page) + (n)) #define page_to_phys(page) VM_PAGE_TO_PHYS(page) -#define clear_page(page) memset(page, 0, PAGE_SIZE) #define pgprot_noncached(prot) \ (((prot) & VM_PROT_ALL) | cachemode2protval(VM_MEMATTR_UNCACHEABLE)) #ifdef VM_MEMATTR_WRITE_COMBINING @@ -129,4 +128,11 @@ clflush_cache_range(void *addr, unsigned int size) int lkpi_set_pages_attr(struct page *page, int numpages, vm_memattr_t ma); +/* -------------------------------------------------------------------------- */ +/* + * clear_page() is called on kmem allocated page addresses, thus zeros a page + * not a 'struct page'. Really belongs into <asm/page.h>. + */ +#define clear_page(_pa) memset(_pa, 0, PAGE_SIZE) + #endif /* _LINUXKPI_LINUX_PAGE_H_ */home | help
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