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authorLennart Poettering <lennart@poettering.net>2015-01-20 20:36:19 +0100
committerLennart Poettering <lennart@poettering.net>2015-01-20 20:40:45 +0100
commitc09ef2e4e8331ddc7ee063d295c322a0939ea851 (patch)
tree6540e647e03d9c33b091f464bfdc37222125ccfa /src/journal/lookup3.h
parentc660bb094288d89762cdbedd08661127988e5548 (diff)
nspawn: work around kernel bug with partition table probing on loopback devices
When we set up a loopback device with partition probing, the udev "change" event about the configured device is first passed on to userspace, only the the in-kernel partition prober is started. Since partition probing fails with EBUSY when somebody has the device open, the probing frequently fails since udev starts probing/opening the device as soon as it gets the notification about it, and it might do so earlier than the kernel probing. This patch adds a (hopefully temporary) work-around for this, that compares the number of probed partitions of the kernel with those of blkid and synchronously asks for reprobing until the numebrs are in sync. This really deserves a proper kernel fix.
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