mm, fs: get rid of PAGE_CACHE_* and page_cache_{get,release} macros

PAGE_CACHE_{SIZE,SHIFT,MASK,ALIGN} macros were introduced *long* time
ago with promise that one day it will be possible to implement page
cache with bigger chunks than PAGE_SIZE.

This promise never materialized.  And unlikely will.

We have many places where PAGE_CACHE_SIZE assumed to be equal to
PAGE_SIZE.  And it's constant source of confusion on whether
PAGE_CACHE_* or PAGE_* constant should be used in a particular case,
especially on the border between fs and mm.

Global switching to PAGE_CACHE_SIZE != PAGE_SIZE would cause to much
breakage to be doable.

Let's stop pretending that pages in page cache are special.  They are
not.

The changes are pretty straight-forward:

 - <foo> << (PAGE_CACHE_SHIFT - PAGE_SHIFT) -> <foo>;

 - <foo> >> (PAGE_CACHE_SHIFT - PAGE_SHIFT) -> <foo>;

 - PAGE_CACHE_{SIZE,SHIFT,MASK,ALIGN} -> PAGE_{SIZE,SHIFT,MASK,ALIGN};

 - page_cache_get() -> get_page();

 - page_cache_release() -> put_page();

This patch contains automated changes generated with coccinelle using
script below.  For some reason, coccinelle doesn't patch header files.
I've called spatch for them manually.

The only adjustment after coccinelle is revert of changes to
PAGE_CAHCE_ALIGN definition: we are going to drop it later.

There are few places in the code where coccinelle didn't reach.  I'll
fix them manually in a separate patch.  Comments and documentation also
will be addressed with the separate patch.

virtual patch

@@
expression E;
@@
- E << (PAGE_CACHE_SHIFT - PAGE_SHIFT)
+ E

@@
expression E;
@@
- E >> (PAGE_CACHE_SHIFT - PAGE_SHIFT)
+ E

@@
@@
- PAGE_CACHE_SHIFT
+ PAGE_SHIFT

@@
@@
- PAGE_CACHE_SIZE
+ PAGE_SIZE

@@
@@
- PAGE_CACHE_MASK
+ PAGE_MASK

@@
expression E;
@@
- PAGE_CACHE_ALIGN(E)
+ PAGE_ALIGN(E)

@@
expression E;
@@
- page_cache_get(E)
+ get_page(E)

@@
expression E;
@@
- page_cache_release(E)
+ put_page(E)

Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Acked-by: Michal Hocko <mhocko@suse.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

11 files changed, 92 insertions, 92 deletions

diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c
index e5c762b37239..53fec0872e60 100644
--- a/fs/f2fs/data.c
+++ b/fs/f2fs/data.c
@@ -223,7 +223,7 @@ int f2fs_submit_page_bio(struct f2fs_io_info *fio)
 	/* Allocate a new bio */
 	bio = __bio_alloc(fio->sbi, fio->new_blkaddr, 1, is_read_io(fio->rw));
 
-	if (bio_add_page(bio, page, PAGE_CACHE_SIZE, 0) < PAGE_CACHE_SIZE) {
+	if (bio_add_page(bio, page, PAGE_SIZE, 0) < PAGE_SIZE) {
 		bio_put(bio);
 		return -EFAULT;
 	}
@@ -265,8 +265,8 @@ alloc_new:
 
 	bio_page = fio->encrypted_page ? fio->encrypted_page : fio->page;
 
-	if (bio_add_page(io->bio, bio_page, PAGE_CACHE_SIZE, 0) <
-							PAGE_CACHE_SIZE) {
+	if (bio_add_page(io->bio, bio_page, PAGE_SIZE, 0) <
+							PAGE_SIZE) {
 		__submit_merged_bio(io);
 		goto alloc_new;
 	}
@@ -406,7 +406,7 @@ got_it:
 	 * see, f2fs_add_link -> get_new_data_page -> init_inode_metadata.
 	 */
 	if (dn.data_blkaddr == NEW_ADDR) {
-		zero_user_segment(page, 0, PAGE_CACHE_SIZE);
+		zero_user_segment(page, 0, PAGE_SIZE);
 		SetPageUptodate(page);
 		unlock_page(page);
 		return page;
@@ -517,7 +517,7 @@ struct page *get_new_data_page(struct inode *inode,
 		goto got_it;
 
 	if (dn.data_blkaddr == NEW_ADDR) {
-		zero_user_segment(page, 0, PAGE_CACHE_SIZE);
+		zero_user_segment(page, 0, PAGE_SIZE);
 		SetPageUptodate(page);
 	} else {
 		f2fs_put_page(page, 1);
@@ -530,8 +530,8 @@ struct page *get_new_data_page(struct inode *inode,
 	}
 got_it:
 	if (new_i_size && i_size_read(inode) <
-				((loff_t)(index + 1) << PAGE_CACHE_SHIFT)) {
-		i_size_write(inode, ((loff_t)(index + 1) << PAGE_CACHE_SHIFT));
+				((loff_t)(index + 1) << PAGE_SHIFT)) {
+		i_size_write(inode, ((loff_t)(index + 1) << PAGE_SHIFT));
 		/* Only the directory inode sets new_i_size */
 		set_inode_flag(F2FS_I(inode), FI_UPDATE_DIR);
 	}
@@ -570,9 +570,9 @@ alloc:
 	/* update i_size */
 	fofs = start_bidx_of_node(ofs_of_node(dn->node_page), dn->inode) +
 							dn->ofs_in_node;
-	if (i_size_read(dn->inode) < ((loff_t)(fofs + 1) << PAGE_CACHE_SHIFT))
+	if (i_size_read(dn->inode) < ((loff_t)(fofs + 1) << PAGE_SHIFT))
 		i_size_write(dn->inode,
-				((loff_t)(fofs + 1) << PAGE_CACHE_SHIFT));
+				((loff_t)(fofs + 1) << PAGE_SHIFT));
 	return 0;
 }
 
@@ -971,7 +971,7 @@ got_it:
 				goto confused;
 			}
 		} else {
-			zero_user_segment(page, 0, PAGE_CACHE_SIZE);
+			zero_user_segment(page, 0, PAGE_SIZE);
 			SetPageUptodate(page);
 			unlock_page(page);
 			goto next_page;
@@ -1021,7 +1021,7 @@ submit_and_realloc:
 		goto next_page;
 set_error_page:
 		SetPageError(page);
-		zero_user_segment(page, 0, PAGE_CACHE_SIZE);
+		zero_user_segment(page, 0, PAGE_SIZE);
 		unlock_page(page);
 		goto next_page;
 confused:
@@ -1032,7 +1032,7 @@ confused:
 		unlock_page(page);
 next_page:
 		if (pages)
-			page_cache_release(page);
+			put_page(page);
 	}
 	BUG_ON(pages && !list_empty(pages));
 	if (bio)
@@ -1136,7 +1136,7 @@ static int f2fs_write_data_page(struct page *page,
 	struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
 	loff_t i_size = i_size_read(inode);
 	const pgoff_t end_index = ((unsigned long long) i_size)
-							>> PAGE_CACHE_SHIFT;
+							>> PAGE_SHIFT;
 	unsigned offset = 0;
 	bool need_balance_fs = false;
 	int err = 0;
@@ -1157,11 +1157,11 @@ static int f2fs_write_data_page(struct page *page,
 	 * If the offset is out-of-range of file size,
 	 * this page does not have to be written to disk.
 	 */
-	offset = i_size & (PAGE_CACHE_SIZE - 1);
+	offset = i_size & (PAGE_SIZE - 1);
 	if ((page->index >= end_index + 1) || !offset)
 		goto out;
 
-	zero_user_segment(page, offset, PAGE_CACHE_SIZE);
+	zero_user_segment(page, offset, PAGE_SIZE);
 write:
 	if (unlikely(is_sbi_flag_set(sbi, SBI_POR_DOING)))
 		goto redirty_out;
@@ -1267,8 +1267,8 @@ next:
 			cycled = 0;
 		end = -1;
 	} else {
-		index = wbc->range_start >> PAGE_CACHE_SHIFT;
-		end = wbc->range_end >> PAGE_CACHE_SHIFT;
+		index = wbc->range_start >> PAGE_SHIFT;
+		end = wbc->range_end >> PAGE_SHIFT;
 		if (wbc->range_start == 0 && wbc->range_end == LLONG_MAX)
 			range_whole = 1;
 		cycled = 1; /* ignore range_cyclic tests */
@@ -1448,11 +1448,11 @@ static int prepare_write_begin(struct f2fs_sb_info *sbi,
 	 * the block addresses when there is no need to fill the page.
 	 */
 	if (!f2fs_has_inline_data(inode) && !f2fs_encrypted_inode(inode) &&
-					len == PAGE_CACHE_SIZE)
+					len == PAGE_SIZE)
 		return 0;
 
 	if (f2fs_has_inline_data(inode) ||
-			(pos & PAGE_CACHE_MASK) >= i_size_read(inode)) {
+			(pos & PAGE_MASK) >= i_size_read(inode)) {
 		f2fs_lock_op(sbi);
 		locked = true;
 	}
@@ -1513,7 +1513,7 @@ static int f2fs_write_begin(struct file *file, struct address_space *mapping,
 	struct inode *inode = mapping->host;
 	struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
 	struct page *page = NULL;
-	pgoff_t index = ((unsigned long long) pos) >> PAGE_CACHE_SHIFT;
+	pgoff_t index = ((unsigned long long) pos) >> PAGE_SHIFT;
 	bool need_balance = false;
 	block_t blkaddr = NULL_ADDR;
 	int err = 0;
@@ -1561,22 +1561,22 @@ repeat:
 	if (f2fs_encrypted_inode(inode) && S_ISREG(inode->i_mode))
 		f2fs_wait_on_encrypted_page_writeback(sbi, blkaddr);
 
-	if (len == PAGE_CACHE_SIZE)
+	if (len == PAGE_SIZE)
 		goto out_update;
 	if (PageUptodate(page))
 		goto out_clear;
 
-	if ((pos & PAGE_CACHE_MASK) >= i_size_read(inode)) {
-		unsigned start = pos & (PAGE_CACHE_SIZE - 1);
+	if ((pos & PAGE_MASK) >= i_size_read(inode)) {
+		unsigned start = pos & (PAGE_SIZE - 1);
 		unsigned end = start + len;
 
 		/* Reading beyond i_size is simple: memset to zero */
-		zero_user_segments(page, 0, start, end, PAGE_CACHE_SIZE);
+		zero_user_segments(page, 0, start, end, PAGE_SIZE);
 		goto out_update;
 	}
 
 	if (blkaddr == NEW_ADDR) {
-		zero_user_segment(page, 0, PAGE_CACHE_SIZE);
+		zero_user_segment(page, 0, PAGE_SIZE);
 	} else {
 		struct f2fs_io_info fio = {
 			.sbi = sbi,
@@ -1688,7 +1688,7 @@ void f2fs_invalidate_page(struct page *page, unsigned int offset,
 	struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
 
 	if (inode->i_ino >= F2FS_ROOT_INO(sbi) &&
-		(offset % PAGE_CACHE_SIZE || length != PAGE_CACHE_SIZE))
+		(offset % PAGE_SIZE || length != PAGE_SIZE))
 		return;
 
 	if (PageDirty(page)) {
diff --git a/fs/f2fs/debug.c b/fs/f2fs/debug.c
index 4fb6ef88a34f..f4a61a5ff79f 100644
--- a/fs/f2fs/debug.c
+++ b/fs/f2fs/debug.c
@@ -164,7 +164,7 @@ static void update_mem_info(struct f2fs_sb_info *sbi)
 
 	/* build curseg */
 	si->base_mem += sizeof(struct curseg_info) * NR_CURSEG_TYPE;
-	si->base_mem += PAGE_CACHE_SIZE * NR_CURSEG_TYPE;
+	si->base_mem += PAGE_SIZE * NR_CURSEG_TYPE;
 
 	/* build dirty segmap */
 	si->base_mem += sizeof(struct dirty_seglist_info);
@@ -201,9 +201,9 @@ get_cache:
 
 	si->page_mem = 0;
 	npages = NODE_MAPPING(sbi)->nrpages;
-	si->page_mem += (unsigned long long)npages << PAGE_CACHE_SHIFT;
+	si->page_mem += (unsigned long long)npages << PAGE_SHIFT;
 	npages = META_MAPPING(sbi)->nrpages;
-	si->page_mem += (unsigned long long)npages << PAGE_CACHE_SHIFT;
+	si->page_mem += (unsigned long long)npages << PAGE_SHIFT;
 }
 
 static int stat_show(struct seq_file *s, void *v)
diff --git a/fs/f2fs/dir.c b/fs/f2fs/dir.c
index 80641ad82745..af819571bce7 100644
--- a/fs/f2fs/dir.c
+++ b/fs/f2fs/dir.c
@@ -17,8 +17,8 @@
 
 static unsigned long dir_blocks(struct inode *inode)
 {
-	return ((unsigned long long) (i_size_read(inode) + PAGE_CACHE_SIZE - 1))
-							>> PAGE_CACHE_SHIFT;
+	return ((unsigned long long) (i_size_read(inode) + PAGE_SIZE - 1))
+							>> PAGE_SHIFT;
 }
 
 static unsigned int dir_buckets(unsigned int level, int dir_level)
diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h
index bbe2cd1265d0..7a4558d17f36 100644
--- a/fs/f2fs/f2fs.h
+++ b/fs/f2fs/f2fs.h
@@ -1294,7 +1294,7 @@ static inline void f2fs_put_page(struct page *page, int unlock)
 		f2fs_bug_on(F2FS_P_SB(page), !PageLocked(page));
 		unlock_page(page);
 	}
-	page_cache_release(page);
+	put_page(page);
 }
 
 static inline void f2fs_put_dnode(struct dnode_of_data *dn)
diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c
index b41c3579ea9e..443e07705c2a 100644
--- a/fs/f2fs/file.c
+++ b/fs/f2fs/file.c
@@ -74,11 +74,11 @@ static int f2fs_vm_page_mkwrite(struct vm_area_struct *vma,
 		goto mapped;
 
 	/* page is wholly or partially inside EOF */
-	if (((loff_t)(page->index + 1) << PAGE_CACHE_SHIFT) >
+	if (((loff_t)(page->index + 1) << PAGE_SHIFT) >
 						i_size_read(inode)) {
 		unsigned offset;
-		offset = i_size_read(inode) & ~PAGE_CACHE_MASK;
-		zero_user_segment(page, offset, PAGE_CACHE_SIZE);
+		offset = i_size_read(inode) & ~PAGE_MASK;
+		zero_user_segment(page, offset, PAGE_SIZE);
 	}
 	set_page_dirty(page);
 	SetPageUptodate(page);
@@ -346,11 +346,11 @@ static loff_t f2fs_seek_block(struct file *file, loff_t offset, int whence)
 		goto found;
 	}
 
-	pgofs = (pgoff_t)(offset >> PAGE_CACHE_SHIFT);
+	pgofs = (pgoff_t)(offset >> PAGE_SHIFT);
 
 	dirty = __get_first_dirty_index(inode->i_mapping, pgofs, whence);
 
-	for (; data_ofs < isize; data_ofs = (loff_t)pgofs << PAGE_CACHE_SHIFT) {
+	for (; data_ofs < isize; data_ofs = (loff_t)pgofs << PAGE_SHIFT) {
 		set_new_dnode(&dn, inode, NULL, NULL, 0);
 		err = get_dnode_of_data(&dn, pgofs, LOOKUP_NODE_RA);
 		if (err && err != -ENOENT) {
@@ -370,7 +370,7 @@ static loff_t f2fs_seek_block(struct file *file, loff_t offset, int whence)
 		/* find data/hole in dnode block */
 		for (; dn.ofs_in_node < end_offset;
 				dn.ofs_in_node++, pgofs++,
-				data_ofs = (loff_t)pgofs << PAGE_CACHE_SHIFT) {
+				data_ofs = (loff_t)pgofs << PAGE_SHIFT) {
 			block_t blkaddr;
 			blkaddr = datablock_addr(dn.node_page, dn.ofs_in_node);
 
@@ -508,8 +508,8 @@ void truncate_data_blocks(struct dnode_of_data *dn)
 static int truncate_partial_data_page(struct inode *inode, u64 from,
 								bool cache_only)
 {
-	unsigned offset = from & (PAGE_CACHE_SIZE - 1);
-	pgoff_t index = from >> PAGE_CACHE_SHIFT;
+	unsigned offset = from & (PAGE_SIZE - 1);
+	pgoff_t index = from >> PAGE_SHIFT;
 	struct address_space *mapping = inode->i_mapping;
 	struct page *page;
 
@@ -529,7 +529,7 @@ static int truncate_partial_data_page(struct inode *inode, u64 from,
 		return 0;
 truncate_out:
 	f2fs_wait_on_page_writeback(page, DATA, true);
-	zero_user(page, offset, PAGE_CACHE_SIZE - offset);
+	zero_user(page, offset, PAGE_SIZE - offset);
 	if (!cache_only || !f2fs_encrypted_inode(inode) ||
 					!S_ISREG(inode->i_mode))
 		set_page_dirty(page);
@@ -799,11 +799,11 @@ static int punch_hole(struct inode *inode, loff_t offset, loff_t len)
 	if (ret)
 		return ret;
 
-	pg_start = ((unsigned long long) offset) >> PAGE_CACHE_SHIFT;
-	pg_end = ((unsigned long long) offset + len) >> PAGE_CACHE_SHIFT;
+	pg_start = ((unsigned long long) offset) >> PAGE_SHIFT;
+	pg_end = ((unsigned long long) offset + len) >> PAGE_SHIFT;
 
-	off_start = offset & (PAGE_CACHE_SIZE - 1);
-	off_end = (offset + len) & (PAGE_CACHE_SIZE - 1);
+	off_start = offset & (PAGE_SIZE - 1);
+	off_end = (offset + len) & (PAGE_SIZE - 1);
 
 	if (pg_start == pg_end) {
 		ret = fill_zero(inode, pg_start, off_start,
@@ -813,7 +813,7 @@ static int punch_hole(struct inode *inode, loff_t offset, loff_t len)
 	} else {
 		if (off_start) {
 			ret = fill_zero(inode, pg_start++, off_start,
-						PAGE_CACHE_SIZE - off_start);
+						PAGE_SIZE - off_start);
 			if (ret)
 				return ret;
 		}
@@ -830,8 +830,8 @@ static int punch_hole(struct inode *inode, loff_t offset, loff_t len)
 
 			f2fs_balance_fs(sbi, true);
 
-			blk_start = (loff_t)pg_start << PAGE_CACHE_SHIFT;
-			blk_end = (loff_t)pg_end << PAGE_CACHE_SHIFT;
+			blk_start = (loff_t)pg_start << PAGE_SHIFT;
+			blk_end = (loff_t)pg_end << PAGE_SHIFT;
 			truncate_inode_pages_range(mapping, blk_start,
 					blk_end - 1);
 
@@ -954,8 +954,8 @@ static int f2fs_collapse_range(struct inode *inode, loff_t offset, loff_t len)
 	if (ret)
 		return ret;
 
-	pg_start = offset >> PAGE_CACHE_SHIFT;
-	pg_end = (offset + len) >> PAGE_CACHE_SHIFT;
+	pg_start = offset >> PAGE_SHIFT;
+	pg_end = (offset + len) >> PAGE_SHIFT;
 
 	/* write out all dirty pages from offset */
 	ret = filemap_write_and_wait_range(inode->i_mapping, offset, LLONG_MAX);
@@ -1006,11 +1006,11 @@ static int f2fs_zero_range(struct inode *inode, loff_t offset, loff_t len,
 
 	truncate_pagecache_range(inode, offset, offset + len - 1);
 
-	pg_start = ((unsigned long long) offset) >> PAGE_CACHE_SHIFT;
-	pg_end = ((unsigned long long) offset + len) >> PAGE_CACHE_SHIFT;
+	pg_start = ((unsigned long long) offset) >> PAGE_SHIFT;
+	pg_end = ((unsigned long long) offset + len) >> PAGE_SHIFT;
 
-	off_start = offset & (PAGE_CACHE_SIZE - 1);
-	off_end = (offset + len) & (PAGE_CACHE_SIZE - 1);
+	off_start = offset & (PAGE_SIZE - 1);
+	off_end = (offset + len) & (PAGE_SIZE - 1);
 
 	if (pg_start == pg_end) {
 		ret = fill_zero(inode, pg_start, off_start,
@@ -1024,12 +1024,12 @@ static int f2fs_zero_range(struct inode *inode, loff_t offset, loff_t len,
 	} else {
 		if (off_start) {
 			ret = fill_zero(inode, pg_start++, off_start,
-						PAGE_CACHE_SIZE - off_start);
+						PAGE_SIZE - off_start);
 			if (ret)
 				return ret;
 
 			new_size = max_t(loff_t, new_size,
-					(loff_t)pg_start << PAGE_CACHE_SHIFT);
+					(loff_t)pg_start << PAGE_SHIFT);
 		}
 
 		for (index = pg_start; index < pg_end; index++) {
@@ -1060,7 +1060,7 @@ static int f2fs_zero_range(struct inode *inode, loff_t offset, loff_t len,
 			f2fs_unlock_op(sbi);
 
 			new_size = max_t(loff_t, new_size,
-				(loff_t)(index + 1) << PAGE_CACHE_SHIFT);
+				(loff_t)(index + 1) << PAGE_SHIFT);
 		}
 
 		if (off_end) {
@@ -1117,8 +1117,8 @@ static int f2fs_insert_range(struct inode *inode, loff_t offset, loff_t len)
 
 	truncate_pagecache(inode, offset);
 
-	pg_start = offset >> PAGE_CACHE_SHIFT;
-	pg_end = (offset + len) >> PAGE_CACHE_SHIFT;
+	pg_start = offset >> PAGE_SHIFT;
+	pg_end = (offset + len) >> PAGE_SHIFT;
 	delta = pg_end - pg_start;
 	nrpages = (i_size_read(inode) + PAGE_SIZE - 1) / PAGE_SIZE;
 
@@ -1158,11 +1158,11 @@ static int expand_inode_data(struct inode *inode, loff_t offset,
 
 	f2fs_balance_fs(sbi, true);
 
-	pg_start = ((unsigned long long) offset) >> PAGE_CACHE_SHIFT;
-	pg_end = ((unsigned long long) offset + len) >> PAGE_CACHE_SHIFT;
+	pg_start = ((unsigned long long) offset) >> PAGE_SHIFT;
+	pg_end = ((unsigned long long) offset + len) >> PAGE_SHIFT;
 
-	off_start = offset & (PAGE_CACHE_SIZE - 1);
-	off_end = (offset + len) & (PAGE_CACHE_SIZE - 1);
+	off_start = offset & (PAGE_SIZE - 1);
+	off_end = (offset + len) & (PAGE_SIZE - 1);
 
 	f2fs_lock_op(sbi);
 
@@ -1180,12 +1180,12 @@ noalloc:
 		if (pg_start == pg_end)
 			new_size = offset + len;
 		else if (index == pg_start && off_start)
-			new_size = (loff_t)(index + 1) << PAGE_CACHE_SHIFT;
+			new_size = (loff_t)(index + 1) << PAGE_SHIFT;
 		else if (index == pg_end)
-			new_size = ((loff_t)index << PAGE_CACHE_SHIFT) +
+			new_size = ((loff_t)index << PAGE_SHIFT) +
 								off_end;
 		else
-			new_size += PAGE_CACHE_SIZE;
+			new_size += PAGE_SIZE;
 	}
 
 	if (!(mode & FALLOC_FL_KEEP_SIZE) &&
@@ -1652,8 +1652,8 @@ static int f2fs_defragment_range(struct f2fs_sb_info *sbi,
 	if (need_inplace_update(inode))
 		return -EINVAL;
 
-	pg_start = range->start >> PAGE_CACHE_SHIFT;
-	pg_end = (range->start + range->len) >> PAGE_CACHE_SHIFT;
+	pg_start = range->start >> PAGE_SHIFT;
+	pg_end = (range->start + range->len) >> PAGE_SHIFT;
 
 	f2fs_balance_fs(sbi, true);
 
@@ -1770,7 +1770,7 @@ clear_out:
 out:
 	inode_unlock(inode);
 	if (!err)
-		range->len = (u64)total << PAGE_CACHE_SHIFT;
+		range->len = (u64)total << PAGE_SHIFT;
 	return err;
 }
 
diff --git a/fs/f2fs/inline.c b/fs/f2fs/inline.c
index 358214e9f707..a2fbe6f427d3 100644
--- a/fs/f2fs/inline.c
+++ b/fs/f2fs/inline.c
@@ -51,7 +51,7 @@ void read_inline_data(struct page *page, struct page *ipage)
 
 	f2fs_bug_on(F2FS_P_SB(page), page->index);
 
-	zero_user_segment(page, MAX_INLINE_DATA, PAGE_CACHE_SIZE);
+	zero_user_segment(page, MAX_INLINE_DATA, PAGE_SIZE);
 
 	/* Copy the whole inline data block */
 	src_addr = inline_data_addr(ipage);
@@ -93,7 +93,7 @@ int f2fs_read_inline_data(struct inode *inode, struct page *page)
 	}
 
 	if (page->index)
-		zero_user_segment(page, 0, PAGE_CACHE_SIZE);
+		zero_user_segment(page, 0, PAGE_SIZE);
 	else
 		read_inline_data(page, ipage);
 
@@ -375,7 +375,7 @@ static int f2fs_convert_inline_dir(struct inode *dir, struct page *ipage,
 		goto out;
 
 	f2fs_wait_on_page_writeback(page, DATA, true);
-	zero_user_segment(page, MAX_INLINE_DATA, PAGE_CACHE_SIZE);
+	zero_user_segment(page, MAX_INLINE_DATA, PAGE_SIZE);
 
 	dentry_blk = kmap_atomic(page);
 
@@ -405,8 +405,8 @@ static int f2fs_convert_inline_dir(struct inode *dir, struct page *ipage,
 	stat_dec_inline_dir(dir);
 	clear_inode_flag(F2FS_I(dir), FI_INLINE_DENTRY);
 
-	if (i_size_read(dir) < PAGE_CACHE_SIZE) {
-		i_size_write(dir, PAGE_CACHE_SIZE);
+	if (i_size_read(dir) < PAGE_SIZE) {
+		i_size_write(dir, PAGE_SIZE);
 		set_inode_flag(F2FS_I(dir), FI_UPDATE_DIR);
 	}
 
diff --git a/fs/f2fs/namei.c b/fs/f2fs/namei.c
index 7876f1052101..c1d9e9d2cb37 100644
--- a/fs/f2fs/namei.c
+++ b/fs/f2fs/namei.c
@@ -1051,12 +1051,12 @@ static const char *f2fs_encrypted_get_link(struct dentry *dentry,
 	/* Null-terminate the name */
 	paddr[res] = '\0';
 
-	page_cache_release(cpage);
+	put_page(cpage);
 	set_delayed_call(done, kfree_link, paddr);
 	return paddr;
 errout:
 	fscrypt_fname_free_buffer(&pstr);
-	page_cache_release(cpage);
+	put_page(cpage);
 	return ERR_PTR(res);
 }
 
diff --git a/fs/f2fs/node.c b/fs/f2fs/node.c
index 118321bd1a7f..1a33de9d84b1 100644
--- a/fs/f2fs/node.c
+++ b/fs/f2fs/node.c
@@ -46,11 +46,11 @@ bool available_free_memory(struct f2fs_sb_info *sbi, int type)
 	 */
 	if (type == FREE_NIDS) {
 		mem_size = (nm_i->fcnt * sizeof(struct free_nid)) >>
-							PAGE_CACHE_SHIFT;
+							PAGE_SHIFT;
 		res = mem_size < ((avail_ram * nm_i->ram_thresh / 100) >> 2);
 	} else if (type == NAT_ENTRIES) {
 		mem_size = (nm_i->nat_cnt * sizeof(struct nat_entry)) >>
-							PAGE_CACHE_SHIFT;
+							PAGE_SHIFT;
 		res = mem_size < ((avail_ram * nm_i->ram_thresh / 100) >> 2);
 	} else if (type == DIRTY_DENTS) {
 		if (sbi->sb->s_bdi->wb.dirty_exceeded)
@@ -62,13 +62,13 @@ bool available_free_memory(struct f2fs_sb_info *sbi, int type)
 
 		for (i = 0; i <= UPDATE_INO; i++)
 			mem_size += (sbi->im[i].ino_num *
-				sizeof(struct ino_entry)) >> PAGE_CACHE_SHIFT;
+				sizeof(struct ino_entry)) >> PAGE_SHIFT;
 		res = mem_size < ((avail_ram * nm_i->ram_thresh / 100) >> 1);
 	} else if (type == EXTENT_CACHE) {
 		mem_size = (atomic_read(&sbi->total_ext_tree) *
 				sizeof(struct extent_tree) +
 				atomic_read(&sbi->total_ext_node) *
-				sizeof(struct extent_node)) >> PAGE_CACHE_SHIFT;
+				sizeof(struct extent_node)) >> PAGE_SHIFT;
 		res = mem_size < ((avail_ram * nm_i->ram_thresh / 100) >> 1);
 	} else {
 		if (!sbi->sb->s_bdi->wb.dirty_exceeded)
@@ -121,7 +121,7 @@ static struct page *get_next_nat_page(struct f2fs_sb_info *sbi, nid_t nid)
 
 	src_addr = page_address(src_page);
 	dst_addr = page_address(dst_page);
-	memcpy(dst_addr, src_addr, PAGE_CACHE_SIZE);
+	memcpy(dst_addr, src_addr, PAGE_SIZE);
 	set_page_dirty(dst_page);
 	f2fs_put_page(src_page, 1);
 
diff --git a/fs/f2fs/recovery.c b/fs/f2fs/recovery.c
index 0b30cd2aeebd..011942f94d64 100644
--- a/fs/f2fs/recovery.c
+++ b/fs/f2fs/recovery.c
@@ -591,7 +591,7 @@ out:
 
 	/* truncate meta pages to be used by the recovery */
 	truncate_inode_pages_range(META_MAPPING(sbi),
-			(loff_t)MAIN_BLKADDR(sbi) << PAGE_CACHE_SHIFT, -1);
+			(loff_t)MAIN_BLKADDR(sbi) << PAGE_SHIFT, -1);
 
 	if (err) {
 		truncate_inode_pages_final(NODE_MAPPING(sbi));
diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c
index 6f16b39f0b52..540669d6978e 100644
--- a/fs/f2fs/segment.c
+++ b/fs/f2fs/segment.c
@@ -885,12 +885,12 @@ int npages_for_summary_flush(struct f2fs_sb_info *sbi, bool for_ra)
 		}
 	}
 
-	sum_in_page = (PAGE_CACHE_SIZE - 2 * SUM_JOURNAL_SIZE -
+	sum_in_page = (PAGE_SIZE - 2 * SUM_JOURNAL_SIZE -
 			SUM_FOOTER_SIZE) / SUMMARY_SIZE;
 	if (valid_sum_count <= sum_in_page)
 		return 1;
 	else if ((valid_sum_count - sum_in_page) <=
-		(PAGE_CACHE_SIZE - SUM_FOOTER_SIZE) / SUMMARY_SIZE)
+		(PAGE_SIZE - SUM_FOOTER_SIZE) / SUMMARY_SIZE)
 		return 2;
 	return 3;
 }
@@ -909,9 +909,9 @@ void update_meta_page(struct f2fs_sb_info *sbi, void *src, block_t blk_addr)
 	void *dst = page_address(page);
 
 	if (src)
-		memcpy(dst, src, PAGE_CACHE_SIZE);
+		memcpy(dst, src, PAGE_SIZE);
 	else
-		memset(dst, 0, PAGE_CACHE_SIZE);
+		memset(dst, 0, PAGE_SIZE);
 	set_page_dirty(page);
 	f2fs_put_page(page, 1);
 }
@@ -1596,7 +1596,7 @@ static int read_compacted_summaries(struct f2fs_sb_info *sbi)
 			s = (struct f2fs_summary *)(kaddr + offset);
 			seg_i->sum_blk->entries[j] = *s;
 			offset += SUMMARY_SIZE;
-			if (offset + SUMMARY_SIZE <= PAGE_CACHE_SIZE -
+			if (offset + SUMMARY_SIZE <= PAGE_SIZE -
 						SUM_FOOTER_SIZE)
 				continue;
 
@@ -1757,7 +1757,7 @@ static void write_compacted_summaries(struct f2fs_sb_info *sbi, block_t blkaddr)
 			*summary = seg_i->sum_blk->entries[j];
 			written_size += SUMMARY_SIZE;
 
-			if (written_size + SUMMARY_SIZE <= PAGE_CACHE_SIZE -
+			if (written_size + SUMMARY_SIZE <= PAGE_SIZE -
 							SUM_FOOTER_SIZE)
 				continue;
 
@@ -1844,7 +1844,7 @@ static struct page *get_next_sit_page(struct f2fs_sb_info *sbi,
 
 	src_addr = page_address(src_page);
 	dst_addr = page_address(dst_page);
-	memcpy(dst_addr, src_addr, PAGE_CACHE_SIZE);
+	memcpy(dst_addr, src_addr, PAGE_SIZE);
 
 	set_page_dirty(dst_page);
 	f2fs_put_page(src_page, 1);
@@ -2171,7 +2171,7 @@ static int build_curseg(struct f2fs_sb_info *sbi)
 
 	for (i = 0; i < NR_CURSEG_TYPE; i++) {
 		mutex_init(&array[i].curseg_mutex);
-		array[i].sum_blk = kzalloc(PAGE_CACHE_SIZE, GFP_KERNEL);
+		array[i].sum_blk = kzalloc(PAGE_SIZE, GFP_KERNEL);
 		if (!array[i].sum_blk)
 			return -ENOMEM;
 		init_rwsem(&array[i].journal_rwsem);
diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c
index 15bb81f8dac2..53b766cdabf2 100644
--- a/fs/f2fs/super.c
+++ b/fs/f2fs/super.c
@@ -1070,10 +1070,10 @@ static int sanity_check_raw_super(struct super_block *sb,
 	}
 
 	/* Currently, support only 4KB page cache size */
-	if (F2FS_BLKSIZE != PAGE_CACHE_SIZE) {
+	if (F2FS_BLKSIZE != PAGE_SIZE) {
 		f2fs_msg(sb, KERN_INFO,
 			"Invalid page_cache_size (%lu), supports only 4KB\n",
-			PAGE_CACHE_SIZE);
+			PAGE_SIZE);
 		return 1;
 	}