diff options
author | Artem Bityutskiy <Artem.Bityutskiy@nokia.com> | 2008-01-16 12:11:54 +0200 |
---|---|---|
committer | Artem Bityutskiy <Artem.Bityutskiy@nokia.com> | 2008-01-25 16:41:24 +0200 |
commit | b9a06623d9d0c6dff758d525ceb0d9e2bba8f7d6 (patch) | |
tree | 9107daa5cf1aa527603c7d33d55ca45dbe760d5a /drivers/mtd/ubi/build.c | |
parent | 4fac9f698404a5cd50b978fbdb7e54235353c215 (diff) | |
download | linux-stable-b9a06623d9d0c6dff758d525ceb0d9e2bba8f7d6.tar.gz linux-stable-b9a06623d9d0c6dff758d525ceb0d9e2bba8f7d6.tar.bz2 linux-stable-b9a06623d9d0c6dff758d525ceb0d9e2bba8f7d6.zip |
UBI: get rid of ubi_ltree_slab
This slab cache is not really needed since the number of objects
is low and the constructor does not make much sense because we
allocate oblects when doint I/O, which is way slower then allocation.
Suggested-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
Diffstat (limited to 'drivers/mtd/ubi/build.c')
-rw-r--r-- | drivers/mtd/ubi/build.c | 28 |
1 files changed, 1 insertions, 27 deletions
diff --git a/drivers/mtd/ubi/build.c b/drivers/mtd/ubi/build.c index 8f1f9feb2d60..8b4573559dfe 100644 --- a/drivers/mtd/ubi/build.c +++ b/drivers/mtd/ubi/build.c @@ -66,9 +66,6 @@ static struct mtd_dev_param mtd_dev_param[UBI_MAX_DEVICES]; /* Root UBI "class" object (corresponds to '/<sysfs>/class/ubi/') */ struct class *ubi_class; -/* Slab cache for lock-tree entries */ -struct kmem_cache *ubi_ltree_slab; - /* Slab cache for wear-leveling entries */ struct kmem_cache *ubi_wl_entry_slab; @@ -858,20 +855,6 @@ int ubi_detach_mtd_dev(int ubi_num, int anyway) } /** - * ltree_entry_ctor - lock tree entries slab cache constructor. - * @obj: the lock-tree entry to construct - * @cache: the lock tree entry slab cache - * @flags: constructor flags - */ -static void ltree_entry_ctor(struct kmem_cache *cache, void *obj) -{ - struct ubi_ltree_entry *le = obj; - - le->users = 0; - init_rwsem(&le->mutex); -} - -/** * find_mtd_device - open an MTD device by its name or number. * @mtd_dev: name or number of the device * @@ -933,17 +916,11 @@ static int __init ubi_init(void) goto out_version; } - ubi_ltree_slab = kmem_cache_create("ubi_ltree_slab", - sizeof(struct ubi_ltree_entry), 0, - 0, <ree_entry_ctor); - if (!ubi_ltree_slab) - goto out_dev_unreg; - ubi_wl_entry_slab = kmem_cache_create("ubi_wl_entry_slab", sizeof(struct ubi_wl_entry), 0, 0, NULL); if (!ubi_wl_entry_slab) - goto out_ltree; + goto out_dev_unreg; /* Attach MTD devices */ for (i = 0; i < mtd_devs; i++) { @@ -980,8 +957,6 @@ out_detach: mutex_unlock(&ubi_devices_mutex); } kmem_cache_destroy(ubi_wl_entry_slab); -out_ltree: - kmem_cache_destroy(ubi_ltree_slab); out_dev_unreg: misc_deregister(&ubi_ctrl_cdev); out_version: @@ -1005,7 +980,6 @@ static void __exit ubi_exit(void) mutex_unlock(&ubi_devices_mutex); } kmem_cache_destroy(ubi_wl_entry_slab); - kmem_cache_destroy(ubi_ltree_slab); misc_deregister(&ubi_ctrl_cdev); class_remove_file(ubi_class, &ubi_version); class_destroy(ubi_class); |