an interface for filesystem preallocation that doesn't suck?
Eric Sandeen
sandeen at redhat.com
Thu Apr 2 22:00:15 UTC 2009
James Ralston wrote:
> If the latter, is there an interface for fallocate() that doesn't have
> quite as much FAIL as posix_fallocate()?
yes, plain ol' fallocate(2), I think:
#include <linux/falloc.h>
long fallocate(int fd, int mode, loff_t offset, loff_t len);
but you need a very recent glibc to get it:
http://sourceware.org/bugzilla/show_bug.cgi?id=7083#c1
it'd be great if we could get that into F11...
BTW, ext4, xfs, btrfs, and ocfs2 all support ->fallocate.
-Eric
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