When I try to run fallocate with "--keep-size" on my btrfs partitions, it's failing, and I'm at a loss as to why. This was working in prior versions. Any suggestions on how to attack this problem? I'm betting I'm missing something simple here, and have just gone down the rabbit hole... BTW, I've confirmed that the line that fails is fallocate.c:368 [2], with "open" always returning -1. [1] 2014-08-26 21:58:28 root@eanna i /var/lib/libvirt/images # fallocate -n -l 10 test.test fallocate: cannot open test.test: No such file or directory zsh: exit 1 fallocate -n -l 10 test.test 2014-08-26 21:58:41 root@eanna i /var/lib/libvirt/images # fallocate -l 10 test.test 2014-08-26 21:58:52 root@eanna i /var/lib/libvirt/images # ls -alh total 4.0K drwxr-xr-x 1 root root 18 Aug 26 21:58 . drwxr-xr-x 1 root root 100 Aug 26 17:39 .. -rw-r--r-- 1 root root 10 Aug 26 21:58 test.test 2014-08-26 21:58:54 root@eanna i /var/lib/libvirt/images # umask 022 2014-08-26 21:59:03 root@eanna i /var/lib/libvirt/images # umask 000 2014-08-26 21:59:08 root@eanna i /var/lib/libvirt/images # rm test.test removed ‘test.test’ 2014-08-26 21:59:15 root@eanna i /var/lib/libvirt/images # fallocate -n -l 10 test.test fallocate: cannot open test.test: No such file or directory zsh: exit 1 fallocate -n -l 10 test.test 2014-08-26 21:59:19 root@eanna i /var/lib/libvirt/images # ls -alh total 0 drwxr-xr-x 1 root root 0 Aug 26 21:59 . drwxr-xr-x 1 root root 100 Aug 26 17:39 .. 2014-08-26 21:59:23 root@eanna i /var/lib/libvirt/images # [2] fd = open(filename, O_RDWR | (!dig && !mode ? O_CREAT : 0), 0644); -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html