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Signed-off-by: Karel Zak <kzak@redhat.com>
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Signed-off-by: Karel Zak <kzak@redhat.com>
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Due to a change in kernel behaviour when opening CDROM devices,
we need to retry the open/mount call when ENOMEDIUM is returned.
Explanation from Tejun Heo:
Okay, the difference is from the addition of cdrom_get_media_event()
call to both sr_drive_status() and ide_cdrom_drive_status().
Previously, the cdrom driver can't differentiate between tray closed
w/ no media and tray open and always returned tray open, which
triggers close and retry in the open logic which probably have delayed
things enough to get the media recognized.
Now the cdrom driver can discern between tray closed w/o media and
device not ready for other reasons and returns -ENOMEDIUM on the
former. This is all good and dandy but the problem seems that some
drives report no media right after the tray is closed but it hasn't
properly detected the media yet.
It seems the only way to work around the problem is via sensible
retries (e.g. try three times 5 secs apart) and I don't think we can
add that type of retry logic into cdrom open path. Please note that
the previous logic wasn't water proof. Some drives can take longer to
recognize the media is there and could have failed the in-kernel retry
too. Also, reading the media can take quite some time and during that
period the drive reports media present but device not ready. The
driver will retry the command (e.g. READ TOC for open) five times but
all of them can fail w/ EMEDIUMTYPE.
[kzak@redhat.com: - add CRDOM_NOMEDIUM_RETRIES to blkdev.h
- add verbose message to mount.c]
Signed-off-by: Matthias Koenig <mkoenig@suse.de>
Signed-off-by: Karel Zak <kzak@redhat.com>
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The macros MOUNTED and MNTTAB are deprecated. This patch standardize
and consolidate all path macros and remove mount_paths.h.
Signed-off-by: Karel Zak <kzak@redhat.com>
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Signed-off-by: Karel Zak <kzak@redhat.com>
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Testcase:
$ mount -oloop /etc/group /mnt
ioctl: LOOP_CLR_FD: Device or resource busy
mount: you must specify the filesystem type
$ losetup /dev/loop0
/dev/loop0: [0803]:1931929 (/etc/group)
Signed-off-by: Matthias Koenig <mkoenig@suse.de>
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The current version of libvolume_id exports the encoding function for the
symlinks names, so slashes in labels and other chars, that don't really fit
into symlink names, will work as expected with LABEL=.
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Signed-off-by: Matthias Koenig <mkoenig@suse.de>
Signed-off-by: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Karel Zak <kzak@redhat.com>
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