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-rw-r--r--fs/statfs.c18
1 files changed, 12 insertions, 6 deletions
diff --git a/fs/statfs.c b/fs/statfs.c
index 95ad5c0e586..c219e733f55 100644
--- a/fs/statfs.c
+++ b/fs/statfs.c
@@ -77,22 +77,28 @@ EXPORT_SYMBOL(vfs_statfs);
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 (retry_estale(error, lookup_flags)) {
+ lookup_flags |= LOOKUP_REVAL;
+ goto retry;
+ }
}
return error;
}
int fd_statfs(int fd, struct kstatfs *st)
{
- int fput_needed;
- struct file *file = fget_light(fd, &fput_needed);
+ struct fd f = fdget(fd);
int error = -EBADF;
- if (file) {
- error = vfs_statfs(&file->f_path, st);
- fput_light(file, fput_needed);
+ if (f.file) {
+ error = vfs_statfs(&f.file->f_path, st);
+ fdput(f);
}
return error;
}