cluster: RHEL6 - gfs2_convert: clear out old di_mode before setting it

Bob Peterson rpeterso at fedoraproject.org
Thu Jan 3 14:59:10 UTC 2013


Gitweb:        http://git.fedorahosted.org/git/?p=cluster.git;a=commitdiff;h=9f3aa3018314f9d1a93024bc554fdf020256caaa
Commit:        9f3aa3018314f9d1a93024bc554fdf020256caaa
Parent:        f6f7fc44566dc95c983a24b5b51d5b0d4f36f2e9
Author:        Bob Peterson <rpeterso at redhat.com>
AuthorDate:    Tue Dec 18 14:14:08 2012 -0600
Committer:     Bob Peterson <rpeterso at redhat.com>
CommitterDate: Thu Jan 3 07:35:01 2013 -0700

gfs2_convert: clear out old di_mode before setting it

This patch clears the dinode 'di_mode' inode type field before
setting it based on the GFS1 value. In rare circumstances
(e.g. fsck.gfs2 ran on a GFS1 file system and created lost+found
with both GFS1 and GFS2 data) di_mode might have an old value.
In these cases, simply doing a logical 'or' with the correct
value produces an invalid value. Zeroing it out beforehand ensures
it is set correctly based on the GFS1 type.

rhbz#888053
---
 gfs2/convert/gfs2_convert.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/gfs2/convert/gfs2_convert.c b/gfs2/convert/gfs2_convert.c
index d6fe1c8..6f3dfb3 100644
--- a/gfs2/convert/gfs2_convert.c
+++ b/gfs2/convert/gfs2_convert.c
@@ -897,6 +897,7 @@ static int adjust_inode(struct gfs2_sbd *sbp, struct gfs2_buffer_head *bh)
 	inode->i_di.di_num.no_formal_ino = sbp->md.next_inum;           ;
 	
 	/* Fix the inode type: gfs1 uses di_type, gfs2 uses di_mode. */
+	inode->i_di.di_mode &= ~S_IFMT;
 	switch (inode->i_di.__pad1) { /* formerly di_type */
 	case GFS_FILE_DIR:           /* directory        */
 		inode->i_di.di_mode |= S_IFDIR;


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