http://bugzilla.kernel.org/show_bug.cgi?id=13603 Summary: Fallocate and DirectIO Product: File System Version: 2.5 Platform: All OS/Version: Linux Tree: Mainline Status: NEW Severity: normal Priority: P1 Component: ext4 AssignedTo: fs_ext4@xxxxxxxxxxxxxxxxxxxx ReportedBy: aneesh.kumar@xxxxxxxxxxxxxxxxxx Regression: No Have a kernel.org bugzilla entry to track the bug. http://article.gmane.org/gmane.comp.file-systems.ext4/13762 I noticed yesterday that a write to fallocate space via directIO results in fallback to buffer_IO. ie the userspace pages get copied to the page cache and then call a sync. I guess this defeat the purpose of using directIO. May be we should consider this a high priority bug. -aneesh -- Configure bugmail: http://bugzilla.kernel.org/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are watching the assignee of the bug. -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html