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cpuset: fix RCU lockdep splat in cpuset_print_task_mems_allowed()
[pandora-kernel.git]
/
fs
/
statfs.c
diff --git
a/fs/statfs.c
b/fs/statfs.c
index
f8e832e
..
c219e73
100644
(file)
--- a/
fs/statfs.c
+++ b/
fs/statfs.c
@@
-77,10
+77,17
@@
EXPORT_SYMBOL(vfs_statfs);
int user_statfs(const char __user *pathname, struct kstatfs *st)
{
struct path path;
int user_statfs(const char __user *pathname, struct kstatfs *st)
{
struct path path;
- int error = user_path_at(AT_FDCWD, pathname, LOOKUP_FOLLOW|LOOKUP_AUTOMOUNT, &path);
+ int error;
+ unsigned int lookup_flags = LOOKUP_FOLLOW|LOOKUP_AUTOMOUNT;
+retry:
+ error = user_path_at(AT_FDCWD, pathname, lookup_flags, &path);
if (!error) {
error = vfs_statfs(&path, st);
path_put(&path);
if (!error) {
error = vfs_statfs(&path, st);
path_put(&path);
+ if (retry_estale(error, lookup_flags)) {
+ lookup_flags |= LOOKUP_REVAL;
+ goto retry;
+ }
}
return error;
}
}
return error;
}