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Message-ID: <4EFBE3D1.5030608@cn.fujitsu.com> Date: Thu, 29 Dec 2011 11:51:45 +0800 From: Wanlong Gao <gaowanlong@...fujitsu.com> To: linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org CC: fengguang.wu@...el.com Subject: Bug in BLKBSZSET/GET ioctl ? Hi all: This is first reported to *libguestfs*: https://bugzilla.redhat.com/show_bug.cgi?id=624335 Then, I looked into upstream util-linux and it seems nothing wrong. I'm not convinced that it's a kernel bug. produce: --- # ./util-linux/disk-utils/blockdev --getbsz /dev/sda6 4096 # ./util-linux/disk-utils/blockdev --setbsz 2048 /dev/sda6 # ./util-linux/disk-utils/blockdev --getbsz /dev/sda6 4096 # ./util-linux/disk-utils/blockdev --setbsz 512 /dev/sda6 # ./util-linux/disk-utils/blockdev --getbsz /dev/sda6 4096 --- I'm not sure if it is related to write-back, but still CCed to Fengguang. Thanks, -Wanlong Gao -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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