tree b30ab51df8df7c4ed9ef3adb68b234064816497f
parent 7950d023c562823345892aac2e7c6a49f8de9ad1
author Artem Bityutskiy <Artem.Bityutskiy@nokia.com> 1288540454 +0200
committer Artem Bityutskiy <Artem.Bityutskiy@nokia.com> 1297012763 +0200

UBI: add slab cache for ubi_scan_leb objects

During scanning UBI allocates one struct ubi_scan_leb object for each PEB,
so it can end up allocating thousands of them. Use slab cache to reduce
memory consumption for these 48-byte objects, because currently used
'kmalloc()' ends up allocating 64 bytes per object, instead of 48.

Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>