Commit 2eb5909d authored Jan 29, 2018 by Bob Peterson

GFS2: Don't try to end a non-existent transaction in unlink



Before this patch, if function gfs2_unlink failed to get a valid
transaction (for example, not enough journal blocks) it would go
to label out_end_trans which did gfs2_trans_end. But if the
trans_begin failed, there's no transaction to end, and trying to
do so results in: kernel BUG at fs/gfs2/trans.c:117!

This patch changes the goto so that it does not try to end a
non-existent transaction.

Signed-off-by: Bob Peterson <rpeterso@redhat.com>

parent 4519eaad

fs/gfs2/inode.c

+2 −3

Original line number	Diff line number	Diff line
		@@ -1152,12 +1152,11 @@ static int gfs2_unlink(struct inode dir, struct dentry dentry)

		error = gfs2_trans_begin(sdp, 2RES_DINODE + 3RES_LEAF + RES_RG_BIT, 0);
		if (error)
		goto out_end_trans;
		goto out_gunlock;

		error = gfs2_unlink_inode(dip, dentry);

		out_end_trans:
		gfs2_trans_end(sdp);

		out_gunlock:
		gfs2_glock_dq(ghs + 2);
		out_rgrp: