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authorJ. Bruce Fields <bfields@fieldses.org>2014-01-16 13:51:07 -0500
committerSteven Whitehouse <swhiteho@redhat.com>2014-01-18 09:50:53 +0000
commitd57b9c9a999a8f4475fe73fba629c964245800ca (patch)
tree70f6d70100cdbcf9590a3383c240606f6481e47b /fs/gfs2
parent8b127d0494890ced4e35fb8eca6d6b57564ee1c6 (diff)
downloadlinux-d57b9c9a999a8f4475fe73fba629c964245800ca.tar.bz2
GFS2: revert "GFS2: d_splice_alias() can't return error"
0d0d110720d7960b77c03c9f2597faaff4b484ae asserts that "d_splice_alias() can't return error unless it was given an IS_ERR(inode)". That was true of the implementation of d_splice_alias, but this is really a problem with d_splice_alias: at a minimum it should be able to return -ELOOP in the case where inserting the given dentry would cause a directory loop. Signed-off-by: J. Bruce Fields <bfields@redhat.com> Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
Diffstat (limited to 'fs/gfs2')
-rw-r--r--fs/gfs2/inode.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/fs/gfs2/inode.c b/fs/gfs2/inode.c
index b8956f24e3d3..890588c7fb33 100644
--- a/fs/gfs2/inode.c
+++ b/fs/gfs2/inode.c
@@ -604,6 +604,9 @@ static int gfs2_create_inode(struct inode *dir, struct dentry *dentry,
error = PTR_ERR(inode);
if (!IS_ERR(inode)) {
d = d_splice_alias(inode, dentry);
+ error = PTR_ERR(d);
+ if (IS_ERR(d))
+ goto fail_gunlock;
error = 0;
if (file) {
if (S_ISREG(inode->i_mode)) {
@@ -799,6 +802,11 @@ static struct dentry *__gfs2_lookup(struct inode *dir, struct dentry *dentry,
}
d = d_splice_alias(inode, dentry);
+ if (IS_ERR(d)) {
+ iput(inode);
+ gfs2_glock_dq_uninit(&gh);
+ return d;
+ }
if (file && S_ISREG(inode->i_mode))
error = finish_open(file, dentry, gfs2_open_common, opened);