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| author | Karel Zak | 2015-03-10 12:51:44 +0100 |
|---|---|---|
| committer | Karel Zak | 2015-03-10 12:51:44 +0100 |
| commit | cd41b385a06dde70bb45c3143d3459157bda58f8 (patch) | |
| tree | 5c5d6bbdf9d16353dea99a06cd090f3f94cce622 /misc-utils/findmnt.8 | |
| parent | logger: check for ntp_gettime() rather than for timex.h (diff) | |
| download | kernel-qcow2-util-linux-cd41b385a06dde70bb45c3143d3459157bda58f8.tar.gz kernel-qcow2-util-linux-cd41b385a06dde70bb45c3143d3459157bda58f8.tar.xz kernel-qcow2-util-linux-cd41b385a06dde70bb45c3143d3459157bda58f8.zip | |
findmnt: don't rely on st_dev for --target
The overlay filesystem does not provide usable st_dev (in traditional
UNIX way). It's necessary to search in /proc/self/mountinfo to detect
which path element is mountpoint.
$ findmnt --target /mnt/merged/dir-a/foo
TARGET SOURCE FSTYPE OPTIONS
/mnt/merged overlay overlay rw,relatime,lowerdir=/mnt/low,upperdir=/mnt/high/data,workdir=/mnt/high/work
Signed-off-by: Karel Zak <kzak@redhat.com>
Diffstat (limited to 'misc-utils/findmnt.8')
| -rw-r--r-- | misc-utils/findmnt.8 | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/misc-utils/findmnt.8 b/misc-utils/findmnt.8 index 45cb49b4a..31c614ae1 100644 --- a/misc-utils/findmnt.8 +++ b/misc-utils/findmnt.8 @@ -185,8 +185,12 @@ Search in .IR /etc/fstab . The output is in the list format (see \fB--list\fR). .TP -.BR \-T , " \-\-target \fIdir\fP" -Explicitly define the mount target (mountpoint directory). +.BR \-T , " \-\-target \fIpath\fP" +Explicitly define the mount target (mountpoint directory). If the \fIpath\fR +is not a mountpoint file or directory than +.B findmnt +checks \fIpath\fR elements in reverse order for get the mountpoint (this feature is +supported only if search in kernel files and unsupported for \fB\-\-fstab\fP). .TP .BR \-t , " \-\-types \fIlist\fP" Limit the set of printed filesystems. More than one type may be |