| Commit message (Collapse) | Author | Age | Files | Lines |
|---|
| |
|
|
|
|
|
|
|
| |
* add SPDX-License-Identifier (see https://spdx.org/licenses/)
* add "This file part of libmount from util-linux project."
* use proper text for LGPL-2.1-or-later
* use the same texts everywhere
Signed-off-by: Karel Zak <kzak@redhat.com>
|
| |
|
|
|
|
|
| |
Let's make it possible to use debug.h without environment variables.
Suggested-by: J William Piggott <elseifthen@gmx.com>
Signed-off-by: Karel Zak <kzak@redhat.com>
|
| |
|
|
|
|
|
| |
Fix various typos in error messages, warnings, debug strings,
comments and names of static functions.
Signed-off-by: Sebastian Rasmussen <sebras@gmail.com>
|
| |
|
|
| |
Signed-off-by: Karel Zak <kzak@redhat.com>
|
| |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| |
When mounting btrfs volume without subvol= and subvolid=, and the
btrfs volume has default subvolume defined, mount() mounts the default
subvolume and not the volume root as other filesystems do.
To handle this situation correctly (for example for "mount -a"),
libmount has to be capable to detect default subvolume.
Add btrfs.c and btrfs.h that implement needed functions.
This patch adds mnt_table_find_target_with_option() to the library API.
Known problems not covered by this patch:
- Use of subvolid= in fstab is not yet handled.
- Use of type auto in combination with subvol= in fstab is not yet
handled.
- Use of btrfs in loop devices, where image file is specified in fstab is
not yet handled (use of /dev/loop0 in fstab works).
- If fstab uses subvol=, and subvol path changes since last "mount -a",
subsequent "mount -a" will not recognize that it is already mounted,
and it will attempt to mount it second time. To fix it, libmount should
remember subvolid in time of mount (subvolid is unique for the
subvolume, subvol is not).
- mountinfo contains subvol and subvolid since kernel 4.2. Before kernel
4.2, there is no reasonable way to solve this situation. (One would
create temporary mount point, mount the default, call needed ioctl() to
determine what was mounted, deduce the default subvolume, compare it
with subvolume of mounted volume, unmount and return result.)
How to reproduce:
truncate -s1G btrfs_test.img
mkdir -p btrfs_mnt
/sbin/mkfs.btrfs -f -d single -m single ./btrfs_test.img
mount -o loop btrfs_test.img btrfs_mnt
pushd .
cd btrfs_mnt
mkdir -p d0/dd0/ddd0
cd d0/dd0/ddd0
touch file{1..5}
btrfs subvol create s1
cd s1
touch file{1..5}
mkdir -p d1/dd1/ddd1
cd d1/dd1/ddd1
btrfs subvol create s2
rid=$(btrfs inspect rootid s2)
echo new default $rid
btrfs subvol get-default .
btrfs subvol set-default $rid .
popd
umount btrfs_mnt
losetup /dev/loop0 $PWD/btrfs_test.img
echo "/dev/loop0 $PWD/btrfs_mnt btrfs defaults 0 0" >>/etc/fstab
mount -a
mount -a
umount btrfs_mnt
sed -i "/\/dev\/loop0/d" /etc/fstab
losetup -d /dev/loop0
rm btrfs_test.img
rmdir btrfs_mnt
Current behavior:
mount: /dev/loop0 is already mounted or /root/btrfs_mnt busy
/dev/loop0 is already mounted on /root/btrfs_mnt
Expected behavior is to ignore already mounted FS.
[kzak@redhat.com: - make 'var' optional for mnt_table_find_target_with_option(),
- add mnt_table_find_target_with_option() to symbols table and docs
- add "btrfs" string between supported debug modes
- minor coding style changes]
Signed-off-by: Stanislav Brabec <sbrabec@suse.cz>
Cc: David Štěrba <dsterba@suse.cz>
Signed-off-by: Karel Zak <kzak@redhat.com>
|
| |
|
|
|
|
| |
I was reading the code and found these mountinfo typos.
Signed-off-by: Kir Kolyshkin <kir@openvz.org>
|
| |
|
|
|
|
|
|
|
|
|
|
| |
It's usually enough to us [e]poll() to monitor kernel mount table, but
there is no way how to monitor changes in userspace mount options
(e.g. _netdev). The management of these mount options is completely
hidden in libmount and /rub/mount/utab is private libmount file.
This patch introduces new libmnt_mount API to monitor also userspace
mount table.
Signed-off-by: Karel Zak <kzak@redhat.com>
|
| |
|
|
| |
Signed-off-by: Karel Zak <kzak@redhat.com>
|
| |
|
|
| |
Signed-off-by: Karel Zak <kzak@redhat.com>
|
| |
|
|
| |
Signed-off-by: Karel Zak <kzak@redhat.com>
|
| |
|
|
| |
Signed-off-by: Karel Zak <kzak@redhat.com>
|
| |
|
|
|
|
|
|
|
|
| |
For example
$ LIBMOUNT_DEBUG=tab,cache findmnt
to debug only TAB and CACHE subsystem.
Signed-off-by: Ondrej Oprala <ooprala@redhat.com>
Signed-off-by: Karel Zak <kzak@redhat.com>
|
| |
|
|
| |
Signed-off-by: Karel Zak <kzak@redhat.com>
|
| |
|
|
| |
Signed-off-by: Ondrej Oprala <ooprala@redhat.com>
|
| |
|
|
| |
Signed-off-by: Ondrej Oprala <ooprala@redhat.com>
|
| |
|
|
|
|
|
| |
libmount_debug_mask was OR'ed to MNT_DEBUG_INIT so it should be non-null.
Thus the check is pointless.
Signed-off-by: Namhyung Kim <namhyung@gmail.com>
|
| |
|
|
| |
Signed-off-by: Ondrej Oprala <ooprala@redhat.com>
|
| |
|
|
| |
Signed-off-by: Karel Zak <kzak@redhat.com>
|
| |
|
|
| |
Signed-off-by: Karel Zak <kzak@redhat.com>
|
| |
|
|
| |
Signed-off-by: Karel Zak <kzak@redhat.com>
|
|
|
Signed-off-by: Karel Zak <kzak@redhat.com>
|
