linux-kernel - [PATCH 10/22] hfs: drop vmtruncate

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [day] [month] [year] [list]

Message-ID: <506FEB24.4010902@gmail.com>
Date:	Sat, 06 Oct 2012 10:26:12 +0200
From:	Marco Stornelli <marco.stornelli@...il.com>
To:	Al Viro <viro@...IV.linux.org.uk>
CC:	Anton Blanchard <anton@...ba.org>,
	Benjamin Herrenschmidt <benh@...nel.crashing.org>,
	linux-fsdevel@...r.kernel.org,
	Linux Kernel <linux-kernel@...r.kernel.org>
Subject: [PATCH 10/22] hfs: drop vmtruncate

Removed vmtruncate.

Signed-off-by: Marco Stornelli <marco.stornelli@...il.com>
---
 fs/hfs/inode.c |   19 +++++++++++++------
 1 files changed, 13 insertions(+), 6 deletions(-)

diff --git a/fs/hfs/inode.c b/fs/hfs/inode.c
index 0b35903..e0b2c23 100644
--- a/fs/hfs/inode.c
+++ b/fs/hfs/inode.c
@@ -47,8 +47,11 @@ static int hfs_write_begin(struct file *file, struct address_space *mapping,
 				&HFS_I(mapping->host)->phys_size);
 	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);
+			hfs_file_truncate(mapping->host);
+		}
 	}
 
 	return ret;
@@ -134,8 +137,10 @@ static ssize_t hfs_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);
+			hfs_file_truncate(inode);
+		}
 	}
 
 	return ret;
@@ -617,9 +622,12 @@ int hfs_inode_setattr(struct dentry *dentry, struct iattr * attr)
 	    attr->ia_size != i_size_read(inode)) {
 		inode_dio_wait(inode);
 
-		error = vmtruncate(inode, attr->ia_size);
+		error = inode_newsize_ok(inode, attr->ia_size);
 		if (error)
 			return error;
+
+		truncate_setsize(inode, attr->ia_size);
+		hfs_file_truncate(inode);
 	}
 
 	setattr_copy(inode, attr);
@@ -668,7 +676,6 @@ static const struct file_operations hfs_file_operations = {
 
 static const struct inode_operations hfs_file_inode_operations = {
 	.lookup		= hfs_file_lookup,
-	.truncate	= hfs_file_truncate,
 	.setattr	= hfs_inode_setattr,
 	.setxattr	= hfs_setxattr,
 	.getxattr	= hfs_getxattr,
-- 
1.7.3.4
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/