linux-ext4 - [PATCH v3 5/5] xfs: Switch to iomap for SEEK_HOLE / SEEK

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

Message-Id: <1498487118-6564-6-git-send-email-agruenba@redhat.com>
Date:   Mon, 26 Jun 2017 16:25:18 +0200
From:   Andreas Gruenbacher <agruenba@...hat.com>
To:     linux-fsdevel@...r.kernel.org
Cc:     Andreas Gruenbacher <agruenba@...hat.com>,
        linux-xfs@...r.kernel.org, linux-ext4@...r.kernel.org
Subject: [PATCH v3 5/5] xfs: Switch to iomap for SEEK_HOLE / SEEK_DATA

Switch to the iomap_seek_hole_data vfs helper for implementing lseek
SEEK_HOLE / SEEK_DATA.  __xfs_seek_hole_data can go away once it's no
longer used by the quota code.

Signed-off-by: Andreas Gruenbacher <agruenba@...hat.com>
---
 fs/xfs/xfs_file.c | 21 +++++----------------
 1 file changed, 5 insertions(+), 16 deletions(-)

diff --git a/fs/xfs/xfs_file.c b/fs/xfs/xfs_file.c
index 962dafd..94fe89a 100644
--- a/fs/xfs/xfs_file.c
+++ b/fs/xfs/xfs_file.c
@@ -1131,29 +1131,18 @@ xfs_seek_hole_data(
 	struct xfs_inode	*ip = XFS_I(inode);
 	struct xfs_mount	*mp = ip->i_mount;
 	uint			lock;
-	loff_t			offset, end;
-	int			error = 0;
+	loff_t			offset;
 
 	if (XFS_FORCED_SHUTDOWN(mp))
 		return -EIO;
 
 	lock = xfs_ilock_data_map_shared(ip);
-
-	end = i_size_read(inode);
-	offset = __xfs_seek_hole_data(inode, start, end, whence);
-	if (offset < 0) {
-		error = offset;
-		goto out_unlock;
-	}
-
-	offset = vfs_setpos(file, offset, inode->i_sb->s_maxbytes);
-
-out_unlock:
+	offset = iomap_seek_hole_data(inode, start, whence, &xfs_iomap_ops);
 	xfs_iunlock(ip, lock);
 
-	if (error)
-		return error;
-	return offset;
+	if (offset < 0)
+		return offset;
+	return vfs_setpos(file, offset, inode->i_sb->s_maxbytes);
 }
 
 STATIC loff_t
-- 
2.7.5