change system file

hc

2024-10-09 244b2c5ca8b14627e4a17755e5922221e121c771

 kernel/fs/f2fs/verity.c
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@@ -47,16 +47,13 @@
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 		size_t n = min_t(size_t, count,
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 				 PAGE_SIZE - offset_in_page(pos));
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 		struct page *page;
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-		void *addr;
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 		page = read_mapping_page(inode->i_mapping, pos >> PAGE_SHIFT,
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 					 NULL);
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 		if (IS_ERR(page))
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 			return PTR_ERR(page);
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-		addr = kmap_atomic(page);
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-		memcpy(buf, addr + offset_in_page(pos), n);
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-		kunmap_atomic(addr);
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+		memcpy_from_page(buf, page, offset_in_page(pos), n);
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 		put_page(page);
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..
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@@ -81,8 +78,7 @@
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 		size_t n = min_t(size_t, count,
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 				 PAGE_SIZE - offset_in_page(pos));
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 		struct page *page;
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-		void *fsdata;
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-		void *addr;
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+		void *fsdata = NULL;
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 		int res;
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 		res = pagecache_write_begin(NULL, inode->i_mapping, pos, n, 0,
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@@ -90,9 +86,7 @@
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 		if (res)
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 			return res;
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-		addr = kmap_atomic(page);
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-		memcpy(addr + offset_in_page(pos), buf, n);
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-		kunmap_atomic(addr);
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+		memcpy_to_page(page, offset_in_page(pos), buf, n);
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 		res = pagecache_write_end(NULL, inode->i_mapping, pos, n, n,
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 					  page, fsdata);