diff options
| -rw-r--r-- | drivers/staging/erofs/unzip_vle.c | 20 |
1 files changed, 17 insertions, 3 deletions
diff --git a/drivers/staging/erofs/unzip_vle.c b/drivers/staging/erofs/unzip_vle.c index 5069cc4c9fb8..155cee68fed5 100644 --- a/drivers/staging/erofs/unzip_vle.c +++ b/drivers/staging/erofs/unzip_vle.c @@ -943,6 +943,7 @@ repeat: for (i = 0; i < nr_pages; ++i) pages[i] = NULL; + err = 0; z_erofs_pagevec_ctor_init(&ctor, Z_EROFS_NR_INLINE_PAGEVECS, work->pagevec, 0); @@ -964,8 +965,17 @@ repeat: pagenr = z_erofs_onlinepage_index(page); DBG_BUGON(pagenr >= nr_pages); - DBG_BUGON(pages[pagenr]); + /* + * currently EROFS doesn't support multiref(dedup), + * so here erroring out one multiref page. + */ + if (pages[pagenr]) { + DBG_BUGON(1); + SetPageError(pages[pagenr]); + z_erofs_onlinepage_endio(pages[pagenr]); + err = -EIO; + } pages[pagenr] = page; } sparsemem_pages = i; @@ -975,7 +985,6 @@ repeat: overlapped = false; compressed_pages = grp->compressed_pages; - err = 0; for (i = 0; i < clusterpages; ++i) { unsigned int pagenr; @@ -999,7 +1008,12 @@ repeat: pagenr = z_erofs_onlinepage_index(page); DBG_BUGON(pagenr >= nr_pages); - DBG_BUGON(pages[pagenr]); + if (pages[pagenr]) { + DBG_BUGON(1); + SetPageError(pages[pagenr]); + z_erofs_onlinepage_endio(pages[pagenr]); + err = -EIO; + } ++sparsemem_pages; pages[pagenr] = page; |