Messages in this thread | | | Date | Mon, 18 Oct 2004 16:42:18 -0700 | From | Andrew Morton <> | Subject | Re: [PATCH 2/3] ext3 reservation allow turn off for specifed file |
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Mingming Cao <cmm@us.ibm.com> wrote: > > Allow user shut down reservation-based allocation(using ioctl) on a specific file(e.g. for seeky random write).
Applications currently pass a seeky-access hint into the kernel via posix_fadvise(POSIX_FADV_RANDOM). It would be nice to hook into that rather than adding an ext3-specific ioctl. Maybe just peeking at file->f_ra.ra_pages would suffice.
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