aboutsummaryrefslogtreecommitdiff
path: root/drivers/mtd/ubi/build.c
diff options
context:
space:
mode:
authorArtem Bityutskiy <Artem.Bityutskiy@nokia.com>2010-10-31 17:54:14 +0200
committerArtem Bityutskiy <Artem.Bityutskiy@nokia.com>2011-02-06 19:19:23 +0200
commit6c1e875ca6f3a47b40dce715bd07fdfdb8388d55 (patch)
treeb30ab51df8df7c4ed9ef3adb68b234064816497f /drivers/mtd/ubi/build.c
parent7950d023c562823345892aac2e7c6a49f8de9ad1 (diff)
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>
Diffstat (limited to 'drivers/mtd/ubi/build.c')
-rw-r--r--drivers/mtd/ubi/build.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/mtd/ubi/build.c b/drivers/mtd/ubi/build.c
index ef296350aa8..ec0ad19c691 100644
--- a/drivers/mtd/ubi/build.c
+++ b/drivers/mtd/ubi/build.c
@@ -923,6 +923,8 @@ int ubi_attach_mtd_dev(struct mtd_info *mtd, int ubi_num, int vid_hdr_offset)
spin_lock_init(&ubi->volumes_lock);
ubi_msg("attaching mtd%d to ubi%d", mtd->index, ubi_num);
+ dbg_msg("sizeof(struct ubi_scan_leb) %zu", sizeof(struct ubi_scan_leb));
+ dbg_msg("sizeof(struct ubi_wl_entry) %zu", sizeof(struct ubi_wl_entry));
err = io_init(ubi);
if (err)