From c4ca6be9d67eaf5a53054903530c8f422b4b88bd Mon Sep 17 00:00:00 2001 From: Richard Weinberger Date: Mon, 6 Oct 2014 14:47:51 +0200 Subject: [PATCH] UBI: Fastmap: Don't allocate new ubi_wl_entry objects MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit 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 Reviewed-by: Tanya Brokhman Reviewed-by: Guido Martínez --- drivers/mtd/ubi/fastmap.c | 31 +++++-------------------------- drivers/mtd/ubi/wl.c | 3 --- 2 files changed, 5 insertions(+), 29 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; - - for (i = 0; i < new_fm->used_blocks; i++) { - new_fm->e[i] = kmem_cache_alloc(ubi_wl_entry_slab, GFP_KERNEL); - if (!new_fm->e[i]) { - while (i--) - kfree(new_fm->e[i]); - - kfree(new_fm); - mutex_unlock(&ubi->fm_mutex); - return -ENOMEM; - } - } - old_fm = ubi->fm; ubi->fm = NULL; @@ -1494,12 +1481,9 @@ int ubi_update_fastmap(struct ubi_device *ubi) ubi_err(ubi, "could not erase old fastmap PEB"); goto err; } - - new_fm->e[i]->pnum = old_fm->e[i]->pnum; - new_fm->e[i]->ec = old_fm->e[i]->ec; + new_fm->e[i] = old_fm->e[i]; } else { - new_fm->e[i]->pnum = tmp_e->pnum; - new_fm->e[i]->ec = tmp_e->ec; + new_fm->e[i] = tmp_e; if (old_fm) ubi_wl_put_fm_peb(ubi, old_fm->e[i], i, @@ -1524,16 +1508,13 @@ int ubi_update_fastmap(struct ubi_device *ubi) i, 0); goto err; } - - new_fm->e[0]->pnum = old_fm->e[0]->pnum; + new_fm->e[0] = old_fm->e[0]; new_fm->e[0]->ec = ret; } else { /* we've got a new anchor PEB, return the old one */ ubi_wl_put_fm_peb(ubi, old_fm->e[0], 0, old_fm->to_be_tortured[0]); - - new_fm->e[0]->pnum = tmp_e->pnum; - new_fm->e[0]->ec = tmp_e->ec; + new_fm->e[0] = tmp_e; } } else { if (!tmp_e) { @@ -1546,9 +1527,7 @@ int ubi_update_fastmap(struct ubi_device *ubi) ret = -ENOSPC; goto err; } - - new_fm->e[0]->pnum = tmp_e->pnum; - new_fm->e[0]->ec = tmp_e->ec; + new_fm->e[0] = tmp_e; } down_write(&ubi->work_sem); diff --git a/drivers/mtd/ubi/wl.c b/drivers/mtd/ubi/wl.c index 227ca64..34a8ec4 100644 --- a/drivers/mtd/ubi/wl.c +++ b/drivers/mtd/ubi/wl.c @@ -1011,9 +1011,6 @@ int ubi_wl_put_fm_peb(struct ubi_device *ubi, struct ubi_wl_entry *fm_e, e = fm_e; ubi_assert(e->ec >= 0); ubi->lookuptbl[pnum] = e; - } else { - e->ec = fm_e->ec; - kfree(fm_e); } spin_unlock(&ubi->wl_lock); -- 2.7.4