From 85c675d0d09a45a135bddd15d7b385f8758c32fb Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sat, 18 May 2024 19:35:05 +0200 Subject: Adding upstream version 6.7.7. Signed-off-by: Daniel Baumann --- drivers/mtd/ubi/fastmap.c | 66 +++++------------------------------------------ 1 file changed, 7 insertions(+), 59 deletions(-) (limited to 'drivers/mtd/ubi/fastmap.c') diff --git a/drivers/mtd/ubi/fastmap.c b/drivers/mtd/ubi/fastmap.c index 28c8151a07..2a728c31e6 100644 --- a/drivers/mtd/ubi/fastmap.c +++ b/drivers/mtd/ubi/fastmap.c @@ -20,7 +20,7 @@ static inline unsigned long *init_seen(struct ubi_device *ubi) if (!ubi_dbg_chk_fastmap(ubi)) return NULL; - ret = bitmap_zalloc(ubi->peb_count, GFP_KERNEL); + ret = bitmap_zalloc(ubi->peb_count, GFP_NOFS); if (!ret) return ERR_PTR(-ENOMEM); @@ -105,7 +105,7 @@ static struct ubi_vid_io_buf *new_fm_vbuf(struct ubi_device *ubi, int vol_id) struct ubi_vid_io_buf *new; struct ubi_vid_hdr *vh; - new = ubi_alloc_vid_buf(ubi, GFP_KERNEL); + new = ubi_alloc_vid_buf(ubi, GFP_NOFS); if (!new) goto out; @@ -1389,53 +1389,6 @@ out: return ret; } -/** - * erase_block - Manually erase a PEB. - * @ubi: UBI device object - * @pnum: PEB to be erased - * - * Returns the new EC value on success, < 0 indicates an internal error. - */ -static int erase_block(struct ubi_device *ubi, int pnum) -{ - int ret; - struct ubi_ec_hdr *ec_hdr; - long long ec; - - ec_hdr = kzalloc(ubi->ec_hdr_alsize, GFP_KERNEL); - if (!ec_hdr) - return -ENOMEM; - - ret = ubi_io_read_ec_hdr(ubi, pnum, ec_hdr, 0); - if (ret < 0) - goto out; - else if (ret && ret != UBI_IO_BITFLIPS) { - ret = -EINVAL; - goto out; - } - - ret = ubi_io_sync_erase(ubi, pnum, 0); - if (ret < 0) - goto out; - - ec = be64_to_cpu(ec_hdr->ec); - ec += ret; - if (ec > UBI_MAX_ERASECOUNTER) { - ret = -EINVAL; - goto out; - } - - ec_hdr->ec = cpu_to_be64(ec); - ret = ubi_io_write_ec_hdr(ubi, pnum, ec_hdr); - if (ret < 0) - goto out; - - ret = ec; -out: - kfree(ec_hdr); - return ret; -} - /** * invalidate_fastmap - destroys a fastmap. * @ubi: UBI device object @@ -1462,7 +1415,7 @@ static int invalidate_fastmap(struct ubi_device *ubi) ubi->fm = NULL; ret = -ENOMEM; - fm = kzalloc(sizeof(*fm), GFP_KERNEL); + fm = kzalloc(sizeof(*fm), GFP_NOFS); if (!fm) goto out; @@ -1538,11 +1491,7 @@ int ubi_update_fastmap(struct ubi_device *ubi) struct ubi_fastmap_layout *new_fm, *old_fm; struct ubi_wl_entry *tmp_e; - down_write(&ubi->fm_protect); - down_write(&ubi->work_sem); - down_write(&ubi->fm_eba_sem); - - ubi_refill_pools(ubi); + ubi_refill_pools_and_lock(ubi); if (ubi->ro_mode || ubi->fm_disabled) { up_write(&ubi->fm_eba_sem); @@ -1551,7 +1500,7 @@ int ubi_update_fastmap(struct ubi_device *ubi) return 0; } - new_fm = kzalloc(sizeof(*new_fm), GFP_KERNEL); + new_fm = kzalloc(sizeof(*new_fm), GFP_NOFS); if (!new_fm) { up_write(&ubi->fm_eba_sem); up_write(&ubi->work_sem); @@ -1576,7 +1525,7 @@ int ubi_update_fastmap(struct ubi_device *ubi) if (!tmp_e) { if (old_fm && old_fm->e[i]) { - ret = erase_block(ubi, old_fm->e[i]->pnum); + ret = ubi_sync_erase(ubi, old_fm->e[i], 0); if (ret < 0) { ubi_err(ubi, "could not erase old fastmap PEB"); @@ -1628,7 +1577,7 @@ int ubi_update_fastmap(struct ubi_device *ubi) if (old_fm) { /* no fresh anchor PEB was found, reuse the old one */ if (!tmp_e) { - ret = erase_block(ubi, old_fm->e[0]->pnum); + ret = ubi_sync_erase(ubi, old_fm->e[0], 0); if (ret < 0) { ubi_err(ubi, "could not erase old anchor PEB"); @@ -1640,7 +1589,6 @@ int ubi_update_fastmap(struct ubi_device *ubi) goto err; } new_fm->e[0] = old_fm->e[0]; - new_fm->e[0]->ec = ret; old_fm->e[0] = NULL; } else { /* we've got a new anchor PEB, return the old one */ -- cgit v1.2.3