docs: Fix some broken references

As we move stuff around, some doc references are broken. Fix some of
them via this script:
	./scripts/documentation-file-ref-check --fix

Manually checked if the produced result is valid, removing a few
false-positives.

Acked-by: Takashi Iwai <tiwai@suse.de>
Acked-by: Masami Hiramatsu <mhiramat@kernel.org>
Acked-by: Stephen Boyd <sboyd@kernel.org>
Acked-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Acked-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Reviewed-by: Coly Li <colyli@suse.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Acked-by: Jonathan Corbet <corbet@lwn.net>
diff --git a/arch/Kconfig b/arch/Kconfig
index 47b235d..1aa5906 100644
--- a/arch/Kconfig
+++ b/arch/Kconfig
@@ -403,7 +403,7 @@
 	  in terms of Berkeley Packet Filter programs which implement
 	  task-defined system call filtering polices.
 
-	  See Documentation/prctl/seccomp_filter.txt for details.
+	  See Documentation/userspace-api/seccomp_filter.rst for details.
 
 preferred-plugin-hostcc := $(if-success,[ $(gcc-version) -ge 40800 ],$(HOSTCXX),$(HOSTCC))
 
diff --git a/arch/arm/include/asm/cacheflush.h b/arch/arm/include/asm/cacheflush.h
index 869080b..ec1a5fd 100644
--- a/arch/arm/include/asm/cacheflush.h
+++ b/arch/arm/include/asm/cacheflush.h
@@ -35,7 +35,7 @@
  *	Start addresses are inclusive and end addresses are exclusive;
  *	start addresses should be rounded down, end addresses up.
  *
- *	See Documentation/cachetlb.txt for more information.
+ *	See Documentation/core-api/cachetlb.rst for more information.
  *	Please note that the implementation of these, and the required
  *	effects are cache-type (VIVT/VIPT/PIPT) specific.
  *
diff --git a/arch/arm64/include/asm/cacheflush.h b/arch/arm64/include/asm/cacheflush.h
index 0094c66..d264a72 100644
--- a/arch/arm64/include/asm/cacheflush.h
+++ b/arch/arm64/include/asm/cacheflush.h
@@ -36,7 +36,7 @@
  *	Start addresses are inclusive and end addresses are exclusive; start
  *	addresses should be rounded down, end addresses up.
  *
- *	See Documentation/cachetlb.txt for more information. Please note that
+ *	See Documentation/core-api/cachetlb.rst for more information. Please note that
  *	the implementation assumes non-aliasing VIPT D-cache and (aliasing)
  *	VIPT I-cache.
  *
diff --git a/arch/microblaze/include/asm/cacheflush.h b/arch/microblaze/include/asm/cacheflush.h
index ffea82a..b091de7 100644
--- a/arch/microblaze/include/asm/cacheflush.h
+++ b/arch/microblaze/include/asm/cacheflush.h
@@ -19,7 +19,7 @@
 #include <linux/mm.h>
 #include <linux/io.h>
 
-/* Look at Documentation/cachetlb.txt */
+/* Look at Documentation/core-api/cachetlb.rst */
 
 /*
  * Cache handling functions.
diff --git a/arch/um/Kconfig.um b/arch/um/Kconfig.um
index 3e7f228..20da5a8 100644
--- a/arch/um/Kconfig.um
+++ b/arch/um/Kconfig.um
@@ -80,7 +80,7 @@
 	  On UML, this is accomplished by sending a "sysrq" command with
 	  mconsole, followed by the letter for the requested command.
 
-	  The keys are documented in <file:Documentation/sysrq.txt>. Don't say Y
+	  The keys are documented in <file:Documentation/admin-guide/sysrq.rst>. Don't say Y
 	  unless you really know what this hack does.
 
 config KERNEL_STACK_ORDER
diff --git a/arch/unicore32/include/asm/cacheflush.h b/arch/unicore32/include/asm/cacheflush.h
index 1d9132b..1c8b9f1 100644
--- a/arch/unicore32/include/asm/cacheflush.h
+++ b/arch/unicore32/include/asm/cacheflush.h
@@ -33,7 +33,7 @@
  *	Start addresses are inclusive and end addresses are exclusive;
  *	start addresses should be rounded down, end addresses up.
  *
- *	See Documentation/cachetlb.txt for more information.
+ *	See Documentation/core-api/cachetlb.rst for more information.
  *	Please note that the implementation of these, and the required
  *	effects are cache-type (VIVT/VIPT/PIPT) specific.
  *
diff --git a/arch/x86/entry/vsyscall/vsyscall_64.c b/arch/x86/entry/vsyscall/vsyscall_64.c
index 7782cdb..82ed001 100644
--- a/arch/x86/entry/vsyscall/vsyscall_64.c
+++ b/arch/x86/entry/vsyscall/vsyscall_64.c
@@ -201,7 +201,7 @@ bool emulate_vsyscall(struct pt_regs *regs, unsigned long address)
 
 	/*
 	 * Handle seccomp.  regs->ip must be the original value.
-	 * See seccomp_send_sigsys and Documentation/prctl/seccomp_filter.txt.
+	 * See seccomp_send_sigsys and Documentation/userspace-api/seccomp_filter.rst.
 	 *
 	 * We could optimize the seccomp disabled case, but performance
 	 * here doesn't matter.
diff --git a/arch/xtensa/include/asm/cacheflush.h b/arch/xtensa/include/asm/cacheflush.h
index 397d6a1..a0d50be 100644
--- a/arch/xtensa/include/asm/cacheflush.h
+++ b/arch/xtensa/include/asm/cacheflush.h
@@ -88,7 +88,7 @@ static inline void __invalidate_icache_page_alias(unsigned long virt,
  *
  * Pages can get remapped. Because this might change the 'color' of that page,
  * we have to flush the cache before the PTE is changed.
- * (see also Documentation/cachetlb.txt)
+ * (see also Documentation/core-api/cachetlb.rst)
  */
 
 #if defined(CONFIG_MMU) && \
@@ -152,7 +152,7 @@ void local_flush_cache_page(struct vm_area_struct *vma,
 		__invalidate_icache_range(start,(end) - (start));	\
 	} while (0)
 
-/* This is not required, see Documentation/cachetlb.txt */
+/* This is not required, see Documentation/core-api/cachetlb.rst */
 #define	flush_icache_page(vma,page)			do { } while (0)
 
 #define flush_dcache_mmap_lock(mapping)			do { } while (0)