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authorDave Airlie <airlied@redhat.com>2014-01-29 09:38:32 +1000
committerDave Airlie <airlied@redhat.com>2014-01-29 09:38:32 +1000
commita5bd4f8ab0443ea62be34b112eb78cafb6b3042d (patch)
treedf3357914d967c2cf4619dbd14f4609daf406a15 /fs/dcache.c
parentdee13f12f6ab0c0927adf9168dfc84da93fc9f13 (diff)
parentbed86f15bdc23436fb30d09e2faa3dfb7d3834e1 (diff)
Merge branch 'drm-armada-fixes' of git://ftp.arm.linux.org.uk/~rmk/linux-cubox into drm-next
Just one-liner which corrects a select statement for DRM_KMS_FB_HELPER which looks like it was missed in the initial merge. Based on 3.13. * 'drm-armada-fixes' of git://ftp.arm.linux.org.uk/~rmk/linux-cubox: (55 commits) DRM: armada: fix missing DRM_KMS_FB_HELPER select
Diffstat (limited to 'fs/dcache.c')
-rw-r--r--fs/dcache.c7
1 files changed, 6 insertions, 1 deletions
diff --git a/fs/dcache.c b/fs/dcache.c
index 6055d61811d..cb4a1069086 100644
--- a/fs/dcache.c
+++ b/fs/dcache.c
@@ -3061,8 +3061,13 @@ char *d_path(const struct path *path, char *buf, int buflen)
* thus don't need to be hashed. They also don't need a name until a
* user wants to identify the object in /proc/pid/fd/. The little hack
* below allows us to generate a name for these objects on demand:
+ *
+ * Some pseudo inodes are mountable. When they are mounted
+ * path->dentry == path->mnt->mnt_root. In that case don't call d_dname
+ * and instead have d_path return the mounted path.
*/
- if (path->dentry->d_op && path->dentry->d_op->d_dname)
+ if (path->dentry->d_op && path->dentry->d_op->d_dname &&
+ (!IS_ROOT(path->dentry) || path->dentry != path->mnt->mnt_root))
return path->dentry->d_op->d_dname(path->dentry, buf, buflen);
rcu_read_lock();