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Return finer grain errors in libzfs unmount_one

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Added errno mappings to unmount_one() in libzfs.  Changed do_unmount() 
implementation to return errno errors directly like is done for 
do_mount() and others.

Reviewed-by: Mark Maybee <mark.maybee@delphix.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Don Brady <don.brady@delphix.com>
Closes #11681
This commit is contained in:
Don Brady 2021-03-08 09:46:45 -07:00 committed by GitHub
parent 4fdbd43450
commit f5ada6538d
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GPG Key ID: 4AEE18F83AFDEB23
3 changed files with 30 additions and 6 deletions
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25
lib/libzfs/libzfs_mount.c
View File

@ -22,7 +22,7 @@
/*
* Copyright 2015 Nexenta Systems, Inc. All rights reserved.
* Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2014, 2020 by Delphix. All rights reserved.
* Copyright (c) 2014, 2021 by Delphix. All rights reserved.
* Copyright 2016 Igor Kozhukhov <ikozhukhov@gmail.com>
* Copyright 2017 RackTop Systems.
* Copyright (c) 2018 Datto Inc.
@ -553,7 +553,28 @@ unmount_one(libzfs_handle_t *hdl, const char *mountpoint, int flags)
error = do_unmount(mountpoint, flags);
if (error != 0) {
return (zfs_error_fmt(hdl, EZFS_UMOUNTFAILED,
int libzfs_err;
switch (error) {
case EBUSY:
libzfs_err = EZFS_BUSY;
break;
case EIO:
libzfs_err = EZFS_IO;
break;
case ENOENT:
libzfs_err = EZFS_NOENT;
break;
case ENOMEM:
libzfs_err = EZFS_NOMEM;
break;
case EPERM:
libzfs_err = EZFS_PERM;
break;
default:
libzfs_err = EZFS_UMOUNTFAILED;
}
return (zfs_error_fmt(hdl, libzfs_err,
dgettext(TEXT_DOMAIN, "cannot unmount '%s'"),
mountpoint));
}

5
lib/libzfs/os/freebsd/libzfs_zmount.c
View File

@ -128,8 +128,9 @@ do_mount(zfs_handle_t *zhp, const char *mntpt, char *opts, int flags)
int
do_unmount(const char *mntpt, int flags)
{
return (unmount(mntpt, flags));
if (unmount(mntpt, flags) < 0)
return (errno);
return (0);
}
int

6
lib/libzfs/os/linux/libzfs_mount_os.c
View File

@ -22,7 +22,7 @@
/*
* Copyright 2015 Nexenta Systems, Inc. All rights reserved.
* Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2014, 2020 by Delphix. All rights reserved.
* Copyright (c) 2014, 2021 by Delphix. All rights reserved.
* Copyright 2016 Igor Kozhukhov <ikozhukhov@gmail.com>
* Copyright 2017 RackTop Systems.
* Copyright (c) 2018 Datto Inc.
@ -377,7 +377,9 @@ int
do_unmount(const char *mntpt, int flags)
{
if (!libzfs_envvar_is_set("ZFS_MOUNT_HELPER")) {
return (umount2(mntpt, flags));
int rv = umount2(mntpt, flags);
return (rv < 0 ? errno : 0);
}
char force_opt[] = "-f";