From: bugzilla-daemon@bugzilla.kernel.org
To: linux-ext4@vger.kernel.org
Subject: [Bug 13603] New: Fallocate and DirectIO
Date: Mon, 22 Jun 2009 16:47:18 GMT [thread overview]
Message-ID: <bug-13603-13602@http.bugzilla.kernel.org/> (raw)
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@kernel-bugs.osdl.org
ReportedBy: aneesh.kumar@linux.vnet.ibm.com
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
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next reply other threads:[~2009-06-22 16:47 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-06-22 16:47 bugzilla-daemon [this message]
2010-03-04 17:33 ` [Bug 13603] Fallocate and DirectIO bugzilla-daemon
2010-03-06 8:46 ` bugzilla-daemon
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