Messages in this thread Patch in this message | | | From | Ira Weiny <> | Date | Wed, 15 Mar 2023 16:20:54 -0700 | Subject | [PATCH 1/3] x86, uaccess: Remove memcpy_page_flushcache() |
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Commit 21b56c847753 ("iov_iter: get rid of separate bvec and xarray callbacks") removed the calls to memcpy_page_flushcache().
kmap_atomic() is deprecated and used in memcpy_page_flushcache().
Remove the unnecessary memcpy_page_flushcache() call.
Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: "Dan Williams" <dan.j.williams@intel.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@redhat.com> Cc: Borislav Petkov <bp@alien8.de> Cc: x86@kernel.org Cc: "H. Peter Anvin" <hpa@zytor.com> Signed-off-by: Ira Weiny <ira.weiny@intel.com> --- arch/x86/include/asm/uaccess_64.h | 2 -- arch/x86/lib/usercopy_64.c | 9 --------- 2 files changed, 11 deletions(-)
diff --git a/arch/x86/include/asm/uaccess_64.h b/arch/x86/include/asm/uaccess_64.h index d13d71af5cf6..c6b1dcded364 100644 --- a/arch/x86/include/asm/uaccess_64.h +++ b/arch/x86/include/asm/uaccess_64.h @@ -62,8 +62,6 @@ extern long __copy_user_nocache(void *dst, const void __user *src, unsigned size, int zerorest); extern long __copy_user_flushcache(void *dst, const void __user *src, unsigned size); -extern void memcpy_page_flushcache(char *to, struct page *page, size_t offset, - size_t len); static inline int __copy_from_user_inatomic_nocache(void *dst, const void __user *src, diff --git a/arch/x86/lib/usercopy_64.c b/arch/x86/lib/usercopy_64.c index 6c1f8ac5e721..f515542f017f 100644 --- a/arch/x86/lib/usercopy_64.c +++ b/arch/x86/lib/usercopy_64.c @@ -136,13 +136,4 @@ void __memcpy_flushcache(void *_dst, const void *_src, size_t size) } } EXPORT_SYMBOL_GPL(__memcpy_flushcache); - -void memcpy_page_flushcache(char *to, struct page *page, size_t offset, - size_t len) -{ - char *from = kmap_atomic(page); - - memcpy_flushcache(to, from + offset, len); - kunmap_atomic(from); -} #endif -- 2.39.2
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