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| author |   Gao Xiang <gaoxiang25@huawei.com> | 2018-12-11 15:17:50 +0800 |
|---|---|---|
| committer |   Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-12-12 10:56:34 +0100 |
| commit | b8e076a6ef253e763bfdb81e5c72bcc828b0fbeb (patch) | |
| tree | cf843bbd6d5a8916aefdafce50eb0f4d912d4356 /drivers/staging/erofs | |
| parent | staging: erofs: unzip_{pagevec.h,vle.c}: rectify BUG_ONs (diff) | |
| download | linux-dev-b8e076a6ef253e763bfdb81e5c72bcc828b0fbeb.tar.xz linux-dev-b8e076a6ef253e763bfdb81e5c72bcc828b0fbeb.zip | |
staging: erofs: unzip_vle_lz4.c,utils.c: rectify BUG_ONs
remove all redundant BUG_ONs, and turn the rest
useful usages to DBG_BUGONs.
Signed-off-by: Gao Xiang <gaoxiang25@huawei.com>
Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/staging/erofs')
| -rw-r--r-- | drivers/staging/erofs/unzip_vle_lz4.c | 2 | ||||
| -rw-r--r-- | drivers/staging/erofs/utils.c | 12 |
2 files changed, 7 insertions, 7 deletions
diff --git a/drivers/staging/erofs/unzip_vle_lz4.c b/drivers/staging/erofs/unzip_vle_lz4.c index de0a5d1365a4..52797bd89da1 100644 --- a/drivers/staging/erofs/unzip_vle_lz4.c +++ b/drivers/staging/erofs/unzip_vle_lz4.c @@ -79,7 +79,7 @@ int z_erofs_vle_plain_copy(struct page **compressed_pages, if (compressed_pages[j] != page) continue; - BUG_ON(mirrored[j]); + DBG_BUGON(mirrored[j]); memcpy(percpu_data + j * PAGE_SIZE, dst, PAGE_SIZE); mirrored[j] = true; break; diff --git a/drivers/staging/erofs/utils.c b/drivers/staging/erofs/utils.c index d2e3ace91046..b535898ca753 100644 --- a/drivers/staging/erofs/utils.c +++ b/drivers/staging/erofs/utils.c @@ -23,9 +23,6 @@ struct page *erofs_allocpage(struct list_head *pool, gfp_t gfp) list_del(&page->lru); } else { page = alloc_pages(gfp | __GFP_NOFAIL, 0); - - BUG_ON(page == NULL); - BUG_ON(page->mapping != NULL); } return page; } @@ -58,7 +55,7 @@ repeat: /* decrease refcount added by erofs_workgroup_put */ if (unlikely(oldcount == 1)) atomic_long_dec(&erofs_global_shrink_cnt); - BUG_ON(index != grp->index); + DBG_BUGON(index != grp->index); } rcu_read_unlock(); return grp; @@ -71,8 +68,11 @@ int erofs_register_workgroup(struct super_block *sb, struct erofs_sb_info *sbi; int err; - /* grp->refcount should not < 1 */ - BUG_ON(!atomic_read(&grp->refcount)); + /* grp shouldn't be broken or used before */ + if (unlikely(atomic_read(&grp->refcount) != 1)) { + DBG_BUGON(1); + return -EINVAL; + } err = radix_tree_preload(GFP_NOFS); if (err) |