diff options
Diffstat (limited to 'fs/erofs/zdata.c')
| -rw-r--r-- | fs/erofs/zdata.c | 21 |
1 files changed, 17 insertions, 4 deletions
diff --git a/fs/erofs/zdata.c b/fs/erofs/zdata.c index bc80cfe482f7..461a929e0825 100644 --- a/fs/erofs/zdata.c +++ b/fs/erofs/zdata.c @@ -1267,12 +1267,13 @@ static int z_erofs_decompress_pcluster(struct z_erofs_backend *be, int err) struct erofs_sb_info *const sbi = EROFS_SB(be->sb); struct z_erofs_pcluster *pcl = be->pcl; unsigned int pclusterpages = z_erofs_pclusterpages(pcl); - const struct z_erofs_decompressor *decomp = + const struct z_erofs_decompressor *alg = z_erofs_decomp[pcl->algorithmformat]; + bool try_free = true; int i, j, jtop, err2; struct page *page; bool overlapped; - bool try_free = true; + const char *reason; mutex_lock(&pcl->lock); be->nr_pages = PAGE_ALIGN(pcl->length + pcl->pageofs_out) >> PAGE_SHIFT; @@ -1304,8 +1305,8 @@ static int z_erofs_decompress_pcluster(struct z_erofs_backend *be, int err) err2 = z_erofs_parse_in_bvecs(be, &overlapped); if (err2) err = err2; - if (!err) - err = decomp->decompress(&(struct z_erofs_decompress_req) { + if (!err) { + reason = alg->decompress(&(struct z_erofs_decompress_req) { .sb = be->sb, .in = be->compressed_pages, .out = be->decompressed_pages, @@ -1322,6 +1323,18 @@ static int z_erofs_decompress_pcluster(struct z_erofs_backend *be, int err) .gfp = pcl->besteffort ? GFP_KERNEL : GFP_NOWAIT | __GFP_NORETRY }, be->pagepool); + if (IS_ERR(reason)) { + erofs_err(be->sb, "failed to decompress (%s) %ld @ pa %llu size %u => %u", + alg->name, PTR_ERR(reason), pcl->pos, + pcl->pclustersize, pcl->length); + err = PTR_ERR(reason); + } else if (unlikely(reason)) { + erofs_err(be->sb, "failed to decompress (%s) %s @ pa %llu size %u => %u", + alg->name, reason, pcl->pos, + pcl->pclustersize, pcl->length); + err = -EFSCORRUPTED; + } + } /* must handle all compressed pages before actual file pages */ if (pcl->from_meta) { |