change system file

hc

2024-10-09 244b2c5ca8b14627e4a17755e5922221e121c771

 kernel/mm/frontswap.c
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@@ -1,3 +1,4 @@
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+// SPDX-License-Identifier: GPL-2.0-only
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 /*
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  * Frontswap frontend
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  *
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@@ -7,8 +8,6 @@
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  *
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  * Copyright (C) 2009-2012 Oracle Corp.  All rights reserved.
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  * Author: Dan Magenheimer
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- *
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- * This work is licensed under the terms of the GNU GPL, version 2.
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  */
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 #include <linux/mman.h>
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@@ -62,16 +61,16 @@
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 static u64 frontswap_invalidates;
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 static inline void inc_frontswap_loads(void) {
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-	frontswap_loads++;
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+	data_race(frontswap_loads++);
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 }
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 static inline void inc_frontswap_succ_stores(void) {
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-	frontswap_succ_stores++;
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+	data_race(frontswap_succ_stores++);
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 }
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 static inline void inc_frontswap_failed_stores(void) {
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-	frontswap_failed_stores++;
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+	data_race(frontswap_failed_stores++);
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 }
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 static inline void inc_frontswap_invalidates(void) {
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-	frontswap_invalidates++;
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+	data_race(frontswap_invalidates++);
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 }
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 #else
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 static inline void inc_frontswap_loads(void) { }
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@@ -88,7 +87,7 @@
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  *
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  * This would not guards us against the user deciding to call swapoff right as
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  * we are calling the backend to initialize (so swapon is in action).
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- * Fortunatly for us, the swapon_mutex has been taked by the callee so we are
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+ * Fortunately for us, the swapon_mutex has been taken by the callee so we are
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  * OK. The other scenario where calls to frontswap_store (called via
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  * swap_writepage) is racing with frontswap_invalidate_area (called via
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  * swapoff) is again guarded by the swap subsystem.
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@@ -414,8 +413,8 @@
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 }
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 /*
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- * Used to check if it's necessory and feasible to unuse pages.
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- * Return 1 when nothing to do, 0 when need to shink pages,
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+ * Used to check if it's necessary and feasible to unuse pages.
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+ * Return 1 when nothing to do, 0 when need to shrink pages,
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  * error code when there is an error.
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  */
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 static int __frontswap_shrink(unsigned long target_pages,
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@@ -447,7 +446,7 @@
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 void frontswap_shrink(unsigned long target_pages)
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 {
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 	unsigned long pages_to_unuse = 0;
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-	int uninitialized_var(type), ret;
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+	int type, ret;
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 	/*
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 	 * we don't want to hold swap_lock while doing a very