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Date: Tue, 30 Jul 2013 14:42:10 +0300
From: "Kirill A. Shutemov" <kirill.shutemov@...ux.intel.com>
To: Al Viro <viro@...iv.linux.org.uk>,
Andrew Morton <akpm@...ux-foundation.org>
Cc: Hugh Dickins <hughd@...gle.com>,
Lukas Czerner <lczerner@...hat.com>, linux-mm@...ck.org,
linux-kernel@...r.kernel.org, linux-fsdevel@...r.kernel.org,
"Kirill A. Shutemov" <kirill@...temov.name>,
Zach Brown <zab@...hat.com>,
"Kirill A. Shutemov" <kirill.shutemov@...ux.intel.com>
Subject: [PATCHv2] truncate: drop 'oldsize' truncate_pagecache() parameter
From: "Kirill A. Shutemov" <kirill.shutemov@...ux.intel.com>
truncate_pagecache() doesn't care about old size since commit cedabed.
Let's drop it.
Signed-off-by: Kirill A. Shutemov <kirill.shutemov@...ux.intel.com>
[v2: drop unused variables]
---
fs/adfs/inode.c | 2 +-
fs/affs/file.c | 2 +-
fs/bfs/file.c | 2 +-
fs/btrfs/free-space-cache.c | 4 +---
fs/btrfs/inode.c | 2 +-
fs/cifs/inode.c | 5 +----
fs/exofs/inode.c | 2 +-
fs/ext2/inode.c | 2 +-
fs/ext4/inode.c | 4 +---
fs/fat/inode.c | 2 +-
fs/fuse/dir.c | 2 +-
fs/fuse/inode.c | 2 +-
fs/gfs2/bmap.c | 4 ++--
fs/hfs/inode.c | 2 +-
fs/hfsplus/inode.c | 2 +-
fs/hpfs/file.c | 2 +-
fs/jfs/inode.c | 2 +-
fs/minix/inode.c | 2 +-
fs/nfs/inode.c | 4 +---
fs/nilfs2/inode.c | 2 +-
fs/ntfs/file.c | 2 +-
fs/omfs/file.c | 2 +-
fs/sysv/itree.c | 2 +-
fs/udf/inode.c | 2 +-
fs/ufs/inode.c | 2 +-
fs/xfs/xfs_aops.c | 4 ++--
include/linux/mm.h | 2 +-
mm/truncate.c | 9 ++-------
28 files changed, 31 insertions(+), 45 deletions(-)
diff --git a/fs/adfs/inode.c b/fs/adfs/inode.c
index 5f95d1e..b9acada 100644
--- a/fs/adfs/inode.c
+++ b/fs/adfs/inode.c
@@ -50,7 +50,7 @@ static void adfs_write_failed(struct address_space *mapping, loff_t to)
struct inode *inode = mapping->host;
if (to > inode->i_size)
- truncate_pagecache(inode, to, inode->i_size);
+ truncate_pagecache(inode, inode->i_size);
}
static int adfs_write_begin(struct file *file, struct address_space *mapping,
diff --git a/fs/affs/file.c b/fs/affs/file.c
index af3261b..1d5e51d 100644
--- a/fs/affs/file.c
+++ b/fs/affs/file.c
@@ -406,7 +406,7 @@ static void affs_write_failed(struct address_space *mapping, loff_t to)
struct inode *inode = mapping->host;
if (to > inode->i_size) {
- truncate_pagecache(inode, to, inode->i_size);
+ truncate_pagecache(inode, inode->i_size);
affs_truncate(inode);
}
}
diff --git a/fs/bfs/file.c b/fs/bfs/file.c
index ad3ea14..ae28922 100644
--- a/fs/bfs/file.c
+++ b/fs/bfs/file.c
@@ -166,7 +166,7 @@ static void bfs_write_failed(struct address_space *mapping, loff_t to)
struct inode *inode = mapping->host;
if (to > inode->i_size)
- truncate_pagecache(inode, to, inode->i_size);
+ truncate_pagecache(inode, inode->i_size);
}
static int bfs_write_begin(struct file *file, struct address_space *mapping,
diff --git a/fs/btrfs/free-space-cache.c b/fs/btrfs/free-space-cache.c
index b21a3cd..256d959 100644
--- a/fs/btrfs/free-space-cache.c
+++ b/fs/btrfs/free-space-cache.c
@@ -221,12 +221,10 @@ int btrfs_truncate_free_space_cache(struct btrfs_root *root,
struct btrfs_path *path,
struct inode *inode)
{
- loff_t oldsize;
int ret = 0;
- oldsize = i_size_read(inode);
btrfs_i_size_write(inode, 0);
- truncate_pagecache(inode, oldsize, 0);
+ truncate_pagecache(inode, 0);
/*
* We don't need an orphan item because truncating the free space cache
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index 6d1b93c..3bdadc1 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -4404,7 +4404,7 @@ static int btrfs_setsize(struct inode *inode, struct iattr *attr)
inode->i_ctime = inode->i_mtime = current_fs_time(inode->i_sb);
if (newsize > oldsize) {
- truncate_pagecache(inode, oldsize, newsize);
+ truncate_pagecache(inode, newsize);
ret = btrfs_cont_expand(inode, oldsize, newsize);
if (ret)
return ret;
diff --git a/fs/cifs/inode.c b/fs/cifs/inode.c
index 449b6cf..2a92c5c 100644
--- a/fs/cifs/inode.c
+++ b/fs/cifs/inode.c
@@ -1852,14 +1852,11 @@ static int cifs_truncate_page(struct address_space *mapping, loff_t from)
static void cifs_setsize(struct inode *inode, loff_t offset)
{
- loff_t oldsize;
-
spin_lock(&inode->i_lock);
- oldsize = inode->i_size;
i_size_write(inode, offset);
spin_unlock(&inode->i_lock);
- truncate_pagecache(inode, oldsize, offset);
+ truncate_pagecache(inode, offset);
}
static int
diff --git a/fs/exofs/inode.c b/fs/exofs/inode.c
index 2ec8eb1..a52a5d2 100644
--- a/fs/exofs/inode.c
+++ b/fs/exofs/inode.c
@@ -861,7 +861,7 @@ static int exofs_writepage(struct page *page, struct writeback_control *wbc)
static void _write_failed(struct inode *inode, loff_t to)
{
if (to > inode->i_size)
- truncate_pagecache(inode, to, inode->i_size);
+ truncate_pagecache(inode, inode->i_size);
}
int exofs_write_begin(struct file *file, struct address_space *mapping,
diff --git a/fs/ext2/inode.c b/fs/ext2/inode.c
index 0a87bb1..c260de6 100644
--- a/fs/ext2/inode.c
+++ b/fs/ext2/inode.c
@@ -58,7 +58,7 @@ static void ext2_write_failed(struct address_space *mapping, loff_t to)
struct inode *inode = mapping->host;
if (to > inode->i_size) {
- truncate_pagecache(inode, to, inode->i_size);
+ truncate_pagecache(inode, inode->i_size);
ext2_truncate_blocks(inode, inode->i_size);
}
}
diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c
index ba33c67..5dac315 100644
--- a/fs/ext4/inode.c
+++ b/fs/ext4/inode.c
@@ -4577,8 +4577,6 @@ int ext4_setattr(struct dentry *dentry, struct iattr *attr)
if (attr->ia_valid & ATTR_SIZE) {
if (attr->ia_size != inode->i_size) {
- loff_t oldsize = inode->i_size;
-
i_size_write(inode, attr->ia_size);
/*
* Blocks are going to be removed from the inode. Wait
@@ -4597,7 +4595,7 @@ int ext4_setattr(struct dentry *dentry, struct iattr *attr)
* Truncate pagecache after we've waited for commit
* in data=journal mode to make pages freeable.
*/
- truncate_pagecache(inode, oldsize, inode->i_size);
+ truncate_pagecache(inode, inode->i_size);
}
ext4_truncate(inode);
}
diff --git a/fs/fat/inode.c b/fs/fat/inode.c
index 11b51bb..0062da2 100644
--- a/fs/fat/inode.c
+++ b/fs/fat/inode.c
@@ -147,7 +147,7 @@ static void fat_write_failed(struct address_space *mapping, loff_t to)
struct inode *inode = mapping->host;
if (to > inode->i_size) {
- truncate_pagecache(inode, to, inode->i_size);
+ truncate_pagecache(inode, inode->i_size);
fat_truncate_blocks(inode, inode->i_size);
}
}
diff --git a/fs/fuse/dir.c b/fs/fuse/dir.c
index 72a5d5b..5cb9730 100644
--- a/fs/fuse/dir.c
+++ b/fs/fuse/dir.c
@@ -1676,7 +1676,7 @@ int fuse_do_setattr(struct inode *inode, struct iattr *attr,
* FUSE_NOWRITE, otherwise fuse_launder_page() would deadlock.
*/
if (S_ISREG(inode->i_mode) && oldsize != outarg.attr.size) {
- truncate_pagecache(inode, oldsize, outarg.attr.size);
+ truncate_pagecache(inode, outarg.attr.size);
invalidate_inode_pages2(inode->i_mapping);
}
diff --git a/fs/fuse/inode.c b/fs/fuse/inode.c
index 0b57859..a24e2a7 100644
--- a/fs/fuse/inode.c
+++ b/fs/fuse/inode.c
@@ -217,7 +217,7 @@ void fuse_change_attributes(struct inode *inode, struct fuse_attr *attr,
bool inval = false;
if (oldsize != attr->size) {
- truncate_pagecache(inode, oldsize, attr->size);
+ truncate_pagecache(inode, attr->size);
inval = true;
} else if (fc->auto_inval_data) {
struct timespec new_mtime = {
diff --git a/fs/gfs2/bmap.c b/fs/gfs2/bmap.c
index 5e2f56f..62a65fc 100644
--- a/fs/gfs2/bmap.c
+++ b/fs/gfs2/bmap.c
@@ -1016,7 +1016,7 @@ static int gfs2_journaled_truncate(struct inode *inode, u64 oldsize, u64 newsize
chunk = oldsize - newsize;
if (chunk > max_chunk)
chunk = max_chunk;
- truncate_pagecache(inode, oldsize, oldsize - chunk);
+ truncate_pagecache(inode, oldsize - chunk);
oldsize -= chunk;
gfs2_trans_end(sdp);
error = gfs2_trans_begin(sdp, RES_DINODE, GFS2_JTRUNC_REVOKES);
@@ -1067,7 +1067,7 @@ static int trunc_start(struct inode *inode, u64 oldsize, u64 newsize)
if (journaled)
error = gfs2_journaled_truncate(inode, oldsize, newsize);
else
- truncate_pagecache(inode, oldsize, newsize);
+ truncate_pagecache(inode, newsize);
if (error) {
brelse(dibh);
diff --git a/fs/hfs/inode.c b/fs/hfs/inode.c
index f9299d8..380ab31 100644
--- a/fs/hfs/inode.c
+++ b/fs/hfs/inode.c
@@ -41,7 +41,7 @@ static void hfs_write_failed(struct address_space *mapping, loff_t to)
struct inode *inode = mapping->host;
if (to > inode->i_size) {
- truncate_pagecache(inode, to, inode->i_size);
+ truncate_pagecache(inode, inode->i_size);
hfs_file_truncate(inode);
}
}
diff --git a/fs/hfsplus/inode.c b/fs/hfsplus/inode.c
index f833d35..4b4ae8c 100644
--- a/fs/hfsplus/inode.c
+++ b/fs/hfsplus/inode.c
@@ -35,7 +35,7 @@ static void hfsplus_write_failed(struct address_space *mapping, loff_t to)
struct inode *inode = mapping->host;
if (to > inode->i_size) {
- truncate_pagecache(inode, to, inode->i_size);
+ truncate_pagecache(inode, inode->i_size);
hfsplus_file_truncate(inode);
}
}
diff --git a/fs/hpfs/file.c b/fs/hpfs/file.c
index 4e9dabc..67c1a61 100644
--- a/fs/hpfs/file.c
+++ b/fs/hpfs/file.c
@@ -138,7 +138,7 @@ static void hpfs_write_failed(struct address_space *mapping, loff_t to)
hpfs_lock(inode->i_sb);
if (to > inode->i_size) {
- truncate_pagecache(inode, to, inode->i_size);
+ truncate_pagecache(inode, inode->i_size);
hpfs_truncate(inode);
}
diff --git a/fs/jfs/inode.c b/fs/jfs/inode.c
index 730f24e..f4aab71 100644
--- a/fs/jfs/inode.c
+++ b/fs/jfs/inode.c
@@ -306,7 +306,7 @@ static void jfs_write_failed(struct address_space *mapping, loff_t to)
struct inode *inode = mapping->host;
if (to > inode->i_size) {
- truncate_pagecache(inode, to, inode->i_size);
+ truncate_pagecache(inode, inode->i_size);
jfs_truncate(inode);
}
}
diff --git a/fs/minix/inode.c b/fs/minix/inode.c
index df12249..0332109 100644
--- a/fs/minix/inode.c
+++ b/fs/minix/inode.c
@@ -400,7 +400,7 @@ static void minix_write_failed(struct address_space *mapping, loff_t to)
struct inode *inode = mapping->host;
if (to > inode->i_size) {
- truncate_pagecache(inode, to, inode->i_size);
+ truncate_pagecache(inode, inode->i_size);
minix_truncate(inode);
}
}
diff --git a/fs/nfs/inode.c b/fs/nfs/inode.c
index af6e806..40c4ba7 100644
--- a/fs/nfs/inode.c
+++ b/fs/nfs/inode.c
@@ -538,7 +538,6 @@ EXPORT_SYMBOL_GPL(nfs_setattr);
*/
static int nfs_vmtruncate(struct inode * inode, loff_t offset)
{
- loff_t oldsize;
int err;
err = inode_newsize_ok(inode, offset);
@@ -546,11 +545,10 @@ static int nfs_vmtruncate(struct inode * inode, loff_t offset)
goto out;
spin_lock(&inode->i_lock);
- oldsize = inode->i_size;
i_size_write(inode, offset);
spin_unlock(&inode->i_lock);
- truncate_pagecache(inode, oldsize, offset);
+ truncate_pagecache(inode, offset);
out:
return err;
}
diff --git a/fs/nilfs2/inode.c b/fs/nilfs2/inode.c
index b1a5277..7e350c5 100644
--- a/fs/nilfs2/inode.c
+++ b/fs/nilfs2/inode.c
@@ -254,7 +254,7 @@ void nilfs_write_failed(struct address_space *mapping, loff_t to)
struct inode *inode = mapping->host;
if (to > inode->i_size) {
- truncate_pagecache(inode, to, inode->i_size);
+ truncate_pagecache(inode, inode->i_size);
nilfs_truncate(inode);
}
}
diff --git a/fs/ntfs/file.c b/fs/ntfs/file.c
index c5670b8..ea4ba9d 100644
--- a/fs/ntfs/file.c
+++ b/fs/ntfs/file.c
@@ -1768,7 +1768,7 @@ static void ntfs_write_failed(struct address_space *mapping, loff_t to)
struct inode *inode = mapping->host;
if (to > inode->i_size) {
- truncate_pagecache(inode, to, inode->i_size);
+ truncate_pagecache(inode, inode->i_size);
ntfs_truncate_vfs(inode);
}
}
diff --git a/fs/omfs/file.c b/fs/omfs/file.c
index e0d9b3e..54d57d6 100644
--- a/fs/omfs/file.c
+++ b/fs/omfs/file.c
@@ -311,7 +311,7 @@ static void omfs_write_failed(struct address_space *mapping, loff_t to)
struct inode *inode = mapping->host;
if (to > inode->i_size) {
- truncate_pagecache(inode, to, inode->i_size);
+ truncate_pagecache(inode, inode->i_size);
omfs_truncate(inode);
}
}
diff --git a/fs/sysv/itree.c b/fs/sysv/itree.c
index c1a591a..66bc316 100644
--- a/fs/sysv/itree.c
+++ b/fs/sysv/itree.c
@@ -469,7 +469,7 @@ static void sysv_write_failed(struct address_space *mapping, loff_t to)
struct inode *inode = mapping->host;
if (to > inode->i_size) {
- truncate_pagecache(inode, to, inode->i_size);
+ truncate_pagecache(inode, inode->i_size);
sysv_truncate(inode);
}
}
diff --git a/fs/udf/inode.c b/fs/udf/inode.c
index b6d15d3..062b792 100644
--- a/fs/udf/inode.c
+++ b/fs/udf/inode.c
@@ -172,7 +172,7 @@ static void udf_write_failed(struct address_space *mapping, loff_t to)
loff_t isize = inode->i_size;
if (to > isize) {
- truncate_pagecache(inode, to, isize);
+ truncate_pagecache(inode, isize);
if (iinfo->i_alloc_type != ICBTAG_FLAG_AD_IN_ICB) {
down_write(&iinfo->i_data_sem);
udf_clear_extent_cache(inode);
diff --git a/fs/ufs/inode.c b/fs/ufs/inode.c
index ff24e44..c8ca960 100644
--- a/fs/ufs/inode.c
+++ b/fs/ufs/inode.c
@@ -531,7 +531,7 @@ static void ufs_write_failed(struct address_space *mapping, loff_t to)
struct inode *inode = mapping->host;
if (to > inode->i_size)
- truncate_pagecache(inode, to, inode->i_size);
+ truncate_pagecache(inode, inode->i_size);
}
static int ufs_write_begin(struct file *file, struct address_space *mapping,
diff --git a/fs/xfs/xfs_aops.c b/fs/xfs/xfs_aops.c
index 596ec71..03d70a9 100644
--- a/fs/xfs/xfs_aops.c
+++ b/fs/xfs/xfs_aops.c
@@ -1587,7 +1587,7 @@ xfs_vm_write_begin(
unlock_page(page);
if (pos + len > i_size_read(inode))
- truncate_pagecache(inode, pos + len, i_size_read(inode));
+ truncate_pagecache(inode, i_size_read(inode));
page_cache_release(page);
page = NULL;
@@ -1623,7 +1623,7 @@ xfs_vm_write_end(
loff_t to = pos + len;
if (to > isize) {
- truncate_pagecache(inode, to, isize);
+ truncate_pagecache(inode, isize);
xfs_vm_kill_delalloc_range(inode, isize, to);
}
}
diff --git a/include/linux/mm.h b/include/linux/mm.h
index f022460..8293bf1 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -992,7 +992,7 @@ static inline void unmap_shared_mapping_range(struct address_space *mapping,
unmap_mapping_range(mapping, holebegin, holelen, 0);
}
-extern void truncate_pagecache(struct inode *inode, loff_t old, loff_t new);
+extern void truncate_pagecache(struct inode *inode, loff_t new);
extern void truncate_setsize(struct inode *inode, loff_t newsize);
void truncate_pagecache_range(struct inode *inode, loff_t offset, loff_t end);
int truncate_inode_page(struct address_space *mapping, struct page *page);
diff --git a/mm/truncate.c b/mm/truncate.c
index e2e8a8a..353b683 100644
--- a/mm/truncate.c
+++ b/mm/truncate.c
@@ -567,7 +567,6 @@ EXPORT_SYMBOL_GPL(invalidate_inode_pages2);
/**
* truncate_pagecache - unmap and remove pagecache that has been truncated
* @inode: inode
- * @oldsize: old file size
* @newsize: new file size
*
* inode's new i_size must already be written before truncate_pagecache
@@ -580,7 +579,7 @@ EXPORT_SYMBOL_GPL(invalidate_inode_pages2);
* situations such as writepage being called for a page that has already
* had its underlying blocks deallocated.
*/
-void truncate_pagecache(struct inode *inode, loff_t oldsize, loff_t newsize)
+void truncate_pagecache(struct inode *inode, loff_t newsize)
{
struct address_space *mapping = inode->i_mapping;
loff_t holebegin = round_up(newsize, PAGE_SIZE);
@@ -614,12 +613,8 @@ EXPORT_SYMBOL(truncate_pagecache);
*/
void truncate_setsize(struct inode *inode, loff_t newsize)
{
- loff_t oldsize;
-
- oldsize = inode->i_size;
i_size_write(inode, newsize);
-
- truncate_pagecache(inode, oldsize, newsize);
+ truncate_pagecache(inode, newsize);
}
EXPORT_SYMBOL(truncate_setsize);
--
1.8.3.2
--
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