Commit 970e5c26 authored by Andreas Gruenbacher's avatar Andreas Gruenbacher Committed by Greg Kroah-Hartman

gfs2: Revert "Fix loop in gfs2_rbm_find"

commit e74c98ca2d6ae4376cc15fa2a22483430909d96b upstream.

This reverts commit 2d29f6b96d8f80322ed2dd895bca590491c38d34.

It turns out that the fix can lead to a ~20 percent performance regression
in initial writes to the page cache according to iozone.  Let's revert this
for now to have more time for a proper fix.

Cc: stable@vger.kernel.org # v3.13+
Signed-off-by: 's avatarAndreas Gruenbacher <agruenba@redhat.com>
Signed-off-by: 's avatarBob Peterson <rpeterso@redhat.com>
Signed-off-by: 's avatarLinus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: 's avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 7685bb0e
......@@ -1720,9 +1720,9 @@ static int gfs2_rbm_find(struct gfs2_rbm *rbm, u8 state, u32 *minext,
goto next_iter;
}
if (ret == -E2BIG) {
n += rbm->bii - initial_bii;
rbm->bii = 0;
rbm->offset = 0;
n += (rbm->bii - initial_bii);
goto res_covered_end_of_rgrp;
}
return ret;
......
Markdown is supported
0% or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment