Messages in this thread | | | Date | Mon, 08 Dec 2014 10:14:14 +0100 | From | Richard Weinberger <> | Subject | Re: [PATCH 2/6] UBI: Fastmap: Don't allocate new ubi_wl_entry objects |
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Am 08.12.2014 um 09:36 schrieb Tanya Brokhman: > On 11/30/2014 1:35 PM, Richard Weinberger wrote: >> There is no need to allocate new ones every time, we can reuse >> the existing ones. >> This makes the code cleaner and more easy to follow. >> >> Signed-off-by: Richard Weinberger <richard@nod.at> >> --- >> drivers/mtd/ubi/fastmap.c | 31 +++++-------------------------- >> drivers/mtd/ubi/wl.c | 11 +++++++---- >> 2 files changed, 12 insertions(+), 30 deletions(-) >> >> diff --git a/drivers/mtd/ubi/fastmap.c b/drivers/mtd/ubi/fastmap.c >> index db3defd..9507702 100644 >> --- a/drivers/mtd/ubi/fastmap.c >> +++ b/drivers/mtd/ubi/fastmap.c >> @@ -1446,19 +1446,6 @@ int ubi_update_fastmap(struct ubi_device *ubi) >> } >> >> new_fm->used_blocks = ubi->fm_size / ubi->leb_size; > > Not related to this patch, but looking at this function it got me thinking: why do we need to re-calculate new_fm->used_blocks (and check calculated value) each time? fm_size > doesn't changed at runtime. leb_size sure does not, so fm->used_blocks can be ubi device parameter and calculated & tested only once, and not each time we write fastmap. Correct?
If you dig deeper into the patch set you'll notice that the fastmap size can change. :-)
Thanks, //richard
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