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x86/uaccess: Remove memcpy_page_flushcache()
Commit 21b56c8477
("iov_iter: get rid of separate bvec and xarray
callbacks") removed the calls to memcpy_page_flushcache().
In addition, memcpy_page_flushcache() uses the deprecated
kmap_atomic().
Remove the unused x86 memcpy_page_flushcache() implementation and
also get rid of one more kmap_atomic() user.
[ dhansen: tweak changelog ]
Signed-off-by: Ira Weiny <ira.weiny@intel.com>
Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com>
Link: https://lore.kernel.org/all/20221230-kmap-x86-v1-1-15f1ecccab50%40intel.com
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parent
8c3223a50f
commit
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2 changed files with 0 additions and 11 deletions
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@ -62,8 +62,6 @@ extern long __copy_user_nocache(void *dst, const void __user *src,
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unsigned size, int zerorest);
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extern long __copy_user_flushcache(void *dst, const void __user *src, unsigned size);
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extern void memcpy_page_flushcache(char *to, struct page *page, size_t offset,
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size_t len);
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static inline int
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__copy_from_user_inatomic_nocache(void *dst, const void __user *src,
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@ -136,13 +136,4 @@ void __memcpy_flushcache(void *_dst, const void *_src, size_t size)
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}
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}
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EXPORT_SYMBOL_GPL(__memcpy_flushcache);
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void memcpy_page_flushcache(char *to, struct page *page, size_t offset,
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size_t len)
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{
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char *from = kmap_atomic(page);
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memcpy_flushcache(to, from + offset, len);
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kunmap_atomic(from);
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}
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#endif
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