semi-stable page writes

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



Hi everyone,

Are people still annoyed about writes taking unexpectedly long amounts of tme
due to the stable page write patchset?  I'm guessing yes...

I'm close to posting a patchset that (a) gates the wait_on_page_writeback calls
on a flag that you can set in the bdi to indicate that you need stable writes
(which blk_integrity_register will set); (b) (ab)uses a page flag bit (PG_slab)
to indicate that a page is actually being sent out to disk hardware; and (c)
changes the three calls to wait_on_page_writeback()s that were in the original
patchset to only wait if the bit in (b) is set.  Sort of a hack, but it'll fix
some of the latency complaints.

I guess I should let that run overnight, and clean up/mail out the set tomorrow.

--D
--
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


[Index of Archives]     [Reiser Filesystem Development]     [Ceph FS]     [Kernel Newbies]     [Security]     [Netfilter]     [Bugtraq]     [Linux FS]     [Yosemite National Park]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Linux RAID]     [Samba]     [Device Mapper]     [Linux Media]

  Powered by Linux