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authorMiao Xie <miaox@cn.fujitsu.com>2012-12-05 10:54:52 +0000
committerChris Mason <chris.mason@fusionio.com>2012-12-16 20:46:20 -0500
commit7426cc04d407621773af3a0403e57642e40c36bf (patch)
treec4ee079d8f66cd23ac58f770f618a02f419dd01e /tools
parent0061280d2c7240805cfd7b1f493da967c97c2f34 (diff)
Btrfs: punch hole past the end of the file
Since we can pre-allocate the space past EOF, we should be able to reclaim that space if we need. This patch implements it by removing the EOF check. Though the manual of fallocate command says we can use truncate command to reclaim the pre-allocated space which past EOF, but because truncate command changes the file size, we must run several commands to reclaim the space if we don't want to change the file size, so it is not a good choice. Signed-off-by: Miao Xie <miaox@cn.fujitsu.com> Signed-off-by: Chris Mason <chris.mason@fusionio.com>
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