linux-kernel - [PATCH 12/22] jfs: drop vmtruncate

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Message-ID: <506FEC06.3080103@gmail.com>
Date:	Sat, 06 Oct 2012 10:29:58 +0200
From:	Marco Stornelli <marco.stornelli@...il.com>
To:	Al Viro <viro@...IV.linux.org.uk>
CC:	Dave Kleikamp <shaggy@...nel.org>,
	jfs-discussion@...ts.sourceforge.net, linux-kernel@...r.kernel.org,
	Linux FS Devel <linux-fsdevel@...r.kernel.org>
Subject: [PATCH 12/22] jfs: drop vmtruncate

Removed vmtruncate.

Signed-off-by: Marco Stornelli <marco.stornelli@...il.com>
---
 fs/jfs/file.c  |    6 ++++--
 fs/jfs/inode.c |   13 +++++++++----
 2 files changed, 13 insertions(+), 6 deletions(-)

diff --git a/fs/jfs/file.c b/fs/jfs/file.c
index 9d3afd1..dd7442c 100644
--- a/fs/jfs/file.c
+++ b/fs/jfs/file.c
@@ -119,9 +119,12 @@ int jfs_setattr(struct dentry *dentry, struct iattr *iattr)
 	    iattr->ia_size != i_size_read(inode)) {
 		inode_dio_wait(inode);
 
-		rc = vmtruncate(inode, iattr->ia_size);
+		rc = inode_newsize_ok(inode, iattr->ia_size);
 		if (rc)
 			return rc;
+
+		truncate_setsize(inode, iattr->ia_size);
+		jfs_truncate(inode);
 	}
 
 	setattr_copy(inode, iattr);
@@ -133,7 +136,6 @@ int jfs_setattr(struct dentry *dentry, struct iattr *iattr)
 }
 
 const struct inode_operations jfs_file_inode_operations = {
-	.truncate	= jfs_truncate,
 	.setxattr	= jfs_setxattr,
 	.getxattr	= jfs_getxattr,
 	.listxattr	= jfs_listxattr,
diff --git a/fs/jfs/inode.c b/fs/jfs/inode.c
index 4692bf3..895be2e 100644
--- a/fs/jfs/inode.c
+++ b/fs/jfs/inode.c
@@ -310,8 +310,11 @@ static int jfs_write_begin(struct file *file, struct address_space *mapping,
 				jfs_get_block);
 	if (unlikely(ret)) {
 		loff_t isize = mapping->host->i_size;
-		if (pos + len > isize)
-			vmtruncate(mapping->host, isize);
+		if ((pos + len > isize) &&
+			inode_newsize_ok(mapping->host, isize) == 0) {
+			truncate_setsize(mapping->host, isize);
+			jfs_truncate(mapping->host);
+		}
 	}
 
 	return ret;
@@ -340,8 +343,10 @@ static ssize_t jfs_direct_IO(int rw, struct kiocb *iocb,
 		loff_t isize = i_size_read(inode);
 		loff_t end = offset + iov_length(iov, nr_segs);
 
-		if (end > isize)
-			vmtruncate(inode, isize);
+		if ((end > isize) && inode_newsize_ok(inode, isize) == 0) {
+			truncate_setsize(inode, isize);
+			jfs_truncate(inode);
+		}
 	}
 
 	return ret;
-- 
1.7.3.4
--
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