1 files changed, 18 insertions, 10 deletions

diff --git a/fs/squashfs/decompressor_multi_percpu.c b/fs/squashfs/decompressor_multi_percpu.c
index b881b9283b7f..e4d7e507b268 100644
--- a/fs/squashfs/decompressor_multi_percpu.c
+++ b/fs/squashfs/decompressor_multi_percpu.c
@@ -7,7 +7,6 @@
 #include <linux/types.h>
 #include <linux/slab.h>
 #include <linux/percpu.h>
-#include <linux/buffer_head.h>
 #include <linux/local_lock.h>
 
 #include "squashfs_fs.h"
@@ -25,7 +24,7 @@ struct squashfs_stream {
 	local_lock_t	lock;
 };
 
-void *squashfs_decompressor_create(struct squashfs_sb_info *msblk,
+static void *squashfs_decompressor_create(struct squashfs_sb_info *msblk,
 						void *comp_opts)
 {
 	struct squashfs_stream *stream;
@@ -47,7 +46,7 @@ void *squashfs_decompressor_create(struct squashfs_sb_info *msblk,
 	}
 
 	kfree(comp_opts);
-	return (__force void *) percpu;
+	return (void *)(__force unsigned long) percpu;
 
 out:
 	for_each_possible_cpu(cpu) {
@@ -59,10 +58,10 @@ out:
 	return ERR_PTR(err);
 }
 
-void squashfs_decompressor_destroy(struct squashfs_sb_info *msblk)
+static void squashfs_decompressor_destroy(struct squashfs_sb_info *msblk)
 {
 	struct squashfs_stream __percpu *percpu =
-			(struct squashfs_stream __percpu *) msblk->stream;
+			(void __percpu *)(unsigned long) msblk->stream;
 	struct squashfs_stream *stream;
 	int cpu;
 
@@ -75,19 +74,21 @@ void squashfs_decompressor_destroy(struct squashfs_sb_info *msblk)
 	}
 }
 
-int squashfs_decompress(struct squashfs_sb_info *msblk, struct bio *bio,
+static int squashfs_decompress(struct squashfs_sb_info *msblk, struct bio *bio,
 	int offset, int length, struct squashfs_page_actor *output)
 {
 	struct squashfs_stream *stream;
+	struct squashfs_stream __percpu *percpu =
+			(void __percpu *)(unsigned long) msblk->stream;
 	int res;
 
-	local_lock(&msblk->stream->lock);
-	stream = this_cpu_ptr(msblk->stream);
+	local_lock(&percpu->lock);
+	stream = this_cpu_ptr(percpu);
 
 	res = msblk->decompressor->decompress(msblk, stream->stream, bio,
 					      offset, length, output);
 
-	local_unlock(&msblk->stream->lock);
+	local_unlock(&percpu->lock);
 
 	if (res < 0)
 		ERROR("%s decompression failed, data probably corrupt\n",
@@ -96,7 +97,14 @@ int squashfs_decompress(struct squashfs_sb_info *msblk, struct bio *bio,
 	return res;
 }
 
-int squashfs_max_decompressors(void)
+static int squashfs_max_decompressors(void)
 {
 	return num_possible_cpus();
 }
+
+const struct squashfs_decompressor_thread_ops squashfs_decompressor_percpu = {
+	.create = squashfs_decompressor_create,
+	.destroy = squashfs_decompressor_destroy,
+	.decompress = squashfs_decompress,
+	.max_decompressors = squashfs_max_decompressors,
+};