Author: kp
Date: Fri Oct 18 03:38:01 2019
New Revision: 353716
URL: https://svnweb.freebsd.org/changeset/base/353716
Log:
MFC r353443
mountroot: run statfs after mounting devfs
The usual flow for mounting a file system is to VFS_MOUNT() and then
immediately VFS_STATFS().
That's not done in vfs_mountroot_devfs(), which means the
mp->mnt_stat.f_iosize field is not correctly populated, which in turn
causes us to mark valid aio operations as unsafe (because the io size is
set to 0), ultimately causing the aio_test:md_waitcomplete test to fail.
Sponsored by: Axiado
Modified:
stable/12/sys/kern/vfs_mountroot.c
Directory Properties:
stable/12/ (props changed)
Modified: stable/12/sys/kern/vfs_mountroot.c
==============================================================================
--- stable/12/sys/kern/vfs_mountroot.c Fri Oct 18 03:36:26 2019
(r353715)
+++ stable/12/sys/kern/vfs_mountroot.c Fri Oct 18 03:38:01 2019
(r353716)
@@ -262,6 +262,11 @@ vfs_mountroot_devfs(struct thread *td, struct mount **
if (error)
return (error);
+ error = VFS_STATFS(mp, &mp->mnt_stat);
+ KASSERT(error == 0, ("VFS_STATFS(devfs) failed %d", error));
+ if (error)
+ return (error);
+
opts = malloc(sizeof(struct vfsoptlist), M_MOUNT, M_WAITOK);
TAILQ_INIT(opts);
mp->mnt_opt = opts;
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