[PATCH v2 00/10] new partitioning helper

Sascha Hauer s.hauer at pengutronix.de
Fri Feb 28 02:25:48 EST 2014


On Thu, Feb 27, 2014 at 09:39:00PM +0100, Uwe Kleine-König wrote:
> Hello,
> 
> this is v2 of the series introducing devfs_create_partitions. With the
> new syntax creating partitions is easier to parse for humans, it has
> support to create partitions without holes inbetween without the need to
> explicitly calculate the offsets and the code generated for the callers
> is smaller.
> 
> I compared the size of arch/arm/boards/a9m2410/a9m2410.o with and
> without the series with the kernel's bloat-o-meter, with the following
> result:
> 
> add/remove: 1/0 grow/shrink: 0/1 up/down: 84/-104 (-20)
> function                                     old     new   delta
> a9m2410_nand0_partitions                       -      84     +84
> a9m2410_devices_init                         296     192    -104
> 
> (Well, the size advantage is a *bit* relativized by the growth of fs/devfs-core.o:
> 
> add/remove: 3/0 grow/shrink: 0/1 up/down: 508/-124 (384)
> function                                     old     new   delta
> __devfs_add_partition.part                     -     376    +376
> devfs_create_partitions                        -     128    +128
> new                                            -       4      +4
> devfs_add_partition                          296     172    -124
> 
> Don't know what "new" is above.)
> 
> Compared to (implicit) v1 of this series I dropped the compound
> literals and used named static arrays instead as wished by Sebastian
> Hesselbarth and Sascha Hauer.

Applied this series. I skipped the pca100 patch as this one has the
partition layout in the devicetree now.

Sascha

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