btrfs: Add ctime/mtime update for btrfs device add/remove.

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commit 5a1972bd9f upstream.

Btrfs will send uevent to udev inform the device change,
but ctime/mtime for the block device inode is not udpated, which cause
libblkid used by btrfs-progs unable to detect device change and use old
cache, causing 'btrfs dev scan; btrfs dev rmove; btrfs dev scan' give an
error message.

Reported-by: Tsutomu Itoh <t-itoh@jp.fujitsu.com>
Cc: Karel Zak <kzak@redhat.com>
Signed-off-by: Qu Wenruo <quwenruo@cn.fujitsu.com>
Signed-off-by: Chris Mason <clm@fb.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

...

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Qu Wenruo 2014-04-16 17:02:32 +08:00 • committed by Greg Kroah-Hartman

parent 2501c4a066

commit 2e9e31430a

1 changed files with 24 additions and 2 deletions

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fs/btrfs/volumes.c

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