Messages in this thread | | | Date | Thu, 29 Nov 2018 09:09:23 +0100 | From | Greg KH <> | Subject | Re: [PATCH] ubi: fastmap: Check each mapping only once |
| |
On Mon, Nov 26, 2018 at 11:38:42AM +0100, Martin Kepplinger wrote: > From: Richard Weinberger <richard@nod.at> > > [ Upstream commit 34653fd8c46e771585fce5975e4243f8fd401914 ] > > This commit got merged along with commit 781932375ffc > ("ubi: fastmap: Correctly handle interrupted erasures in EBA") upstream but > only the latter has been applied to stable v4.14.54 as commit a23cf10d9abb. > This resulted in a performance regression. Startup on i.MX platforms is > delayed for up to a few seconds depending on the platform. > This fixes ubi fastmap to be of the same performance as it has been before > said fastmap changes. > > Fixes: a23cf10d9abb ("ubi: fastmap: Correctly handle interrupted erasures in EBA") > Signed-off-by: Richard Weinberger <richard@nod.at> > Signed-off-by: Martin Kepplinger <martin.kepplinger@ginzinger.com> > --- > > Richard, although this fixes a major slowdown regression in -stable, do you > consider this "stable" too? > > This applies and is tested only for the 4.14 stable tree. It seems to be > equally relevant for 4.9 and 4.4 though.
Now queued up for 4.14.y, thanks.
greg k-h
| |