1 files changed, 0 insertions, 178 deletions
diff --git a/fs/erofs/zdata.h b/fs/erofs/zdata.h
deleted file mode 100644
index d98c95212985..000000000000
--- a/fs/erofs/zdata.h
+++ /dev/null
@@ -1,178 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0-only */
-/*
- * Copyright (C) 2018 HUAWEI, Inc.
- *             https://www.huawei.com/
- */
-#ifndef __EROFS_FS_ZDATA_H
-#define __EROFS_FS_ZDATA_H
-
-#include "internal.h"
-#include "tagptr.h"
-
-#define Z_EROFS_PCLUSTER_MAX_PAGES	(Z_EROFS_PCLUSTER_MAX_SIZE / PAGE_SIZE)
-#define Z_EROFS_INLINE_BVECS		2
-
-/*
- * let's leave a type here in case of introducing
- * another tagged pointer later.
- */
-typedef void *z_erofs_next_pcluster_t;
-
-struct z_erofs_bvec {
-	struct page *page;
-	int offset;
-	unsigned int end;
-};
-
-#define __Z_EROFS_BVSET(name, total) \
-struct name { \
-	/* point to the next page which contains the following bvecs */ \
-	struct page *nextpage; \
-	struct z_erofs_bvec bvec[total]; \
-}
-__Z_EROFS_BVSET(z_erofs_bvset,);
-__Z_EROFS_BVSET(z_erofs_bvset_inline, Z_EROFS_INLINE_BVECS);
-
-/*
- * Structure fields follow one of the following exclusion rules.
- *
- * I: Modifiable by initialization/destruction paths and read-only
- *    for everyone else;
- *
- * L: Field should be protected by the pcluster lock;
- *
- * A: Field should be accessed / updated in atomic for parallelized code.
- */
-struct z_erofs_pcluster {
-	struct erofs_workgroup obj;
-	struct mutex lock;
-
-	/* A: point to next chained pcluster or TAILs */
-	z_erofs_next_pcluster_t next;
-
-	/* L: the maximum decompression size of this round */
-	unsigned int length;
-
-	/* L: total number of bvecs */
-	unsigned int vcnt;
-
-	/* I: page offset of start position of decompression */
-	unsigned short pageofs_out;
-
-	/* I: page offset of inline compressed data */
-	unsigned short pageofs_in;
-
-	union {
-		/* L: inline a certain number of bvec for bootstrap */
-		struct z_erofs_bvset_inline bvset;
-
-		/* I: can be used to free the pcluster by RCU. */
-		struct rcu_head rcu;
-	};
-
-	union {
-		/* I: physical cluster size in pages */
-		unsigned short pclusterpages;
-
-		/* I: tailpacking inline compressed size */
-		unsigned short tailpacking_size;
-	};
-
-	/* I: compression algorithm format */
-	unsigned char algorithmformat;
-
-	/* L: whether partial decompression or not */
-	bool partial;
-
-	/* L: indicate several pageofs_outs or not */
-	bool multibases;
-
-	/* A: compressed bvecs (can be cached or inplaced pages) */
-	struct z_erofs_bvec compressed_bvecs[];
-};
-
-/* let's avoid the valid 32-bit kernel addresses */
-
-/* the chained workgroup has't submitted io (still open) */
-#define Z_EROFS_PCLUSTER_TAIL           ((void *)0x5F0ECAFE)
-/* the chained workgroup has already submitted io */
-#define Z_EROFS_PCLUSTER_TAIL_CLOSED    ((void *)0x5F0EDEAD)
-
-#define Z_EROFS_PCLUSTER_NIL            (NULL)
-
-struct z_erofs_decompressqueue {
-	struct super_block *sb;
-	atomic_t pending_bios;
-	z_erofs_next_pcluster_t head;
-
-	union {
-		struct completion done;
-		struct work_struct work;
-	} u;
-
-	bool eio;
-};
-
-static inline bool z_erofs_is_inline_pcluster(struct z_erofs_pcluster *pcl)
-{
-	return !pcl->obj.index;
-}
-
-static inline unsigned int z_erofs_pclusterpages(struct z_erofs_pcluster *pcl)
-{
-	if (z_erofs_is_inline_pcluster(pcl))
-		return 1;
-	return pcl->pclusterpages;
-}
-
-/*
- * bit 30: I/O error occurred on this page
- * bit 0 - 29: remaining parts to complete this page
- */
-#define Z_EROFS_PAGE_EIO			(1 << 30)
-
-static inline void z_erofs_onlinepage_init(struct page *page)
-{
-	union {
-		atomic_t o;
-		unsigned long v;
-	} u = { .o = ATOMIC_INIT(1) };
-
-	set_page_private(page, u.v);
-	smp_wmb();
-	SetPagePrivate(page);
-}
-
-static inline void z_erofs_onlinepage_split(struct page *page)
-{
-	atomic_inc((atomic_t *)&page->private);
-}
-
-static inline void z_erofs_page_mark_eio(struct page *page)
-{
-	int orig;
-
-	do {
-		orig = atomic_read((atomic_t *)&page->private);
-	} while (atomic_cmpxchg((atomic_t *)&page->private, orig,
-				orig | Z_EROFS_PAGE_EIO) != orig);
-}
-
-static inline void z_erofs_onlinepage_endio(struct page *page)
-{
-	unsigned int v;
-
-	DBG_BUGON(!PagePrivate(page));
-	v = atomic_dec_return((atomic_t *)&page->private);
-	if (!(v & ~Z_EROFS_PAGE_EIO)) {
-		set_page_private(page, 0);
-		ClearPagePrivate(page);
-		if (!(v & Z_EROFS_PAGE_EIO))
-			SetPageUptodate(page);
-		unlock_page(page);
-	}
-}
-
-#define Z_EROFS_ONSTACK_PAGES		32
-
-#endif