diff options
Diffstat (limited to 'fs/erofs/zpvec.h')
| -rw-r--r-- | fs/erofs/zpvec.h | 13 |
1 files changed, 10 insertions, 3 deletions
diff --git a/fs/erofs/zpvec.h b/fs/erofs/zpvec.h index a38c52610367..6a20b2c3a24c 100644 --- a/fs/erofs/zpvec.h +++ b/fs/erofs/zpvec.h @@ -107,11 +107,18 @@ static inline void z_erofs_pagevec_ctor_init(struct z_erofs_pagevec_ctor *ctor, static inline bool z_erofs_pagevec_enqueue(struct z_erofs_pagevec_ctor *ctor, struct page *page, - enum z_erofs_page_type type) + enum z_erofs_page_type type, + bool pvec_safereuse) { - if (!ctor->next && type) - if (ctor->index + 1 == ctor->nr) + if (!ctor->next) { + /* some pages cannot be reused as pvec safely without I/O */ + if (type == Z_EROFS_PAGE_TYPE_EXCLUSIVE && !pvec_safereuse) + type = Z_EROFS_VLE_PAGE_TYPE_TAIL_SHARED; + + if (type != Z_EROFS_PAGE_TYPE_EXCLUSIVE && + ctor->index + 1 == ctor->nr) return false; + } if (ctor->index >= ctor->nr) z_erofs_pagevec_ctor_pagedown(ctor, false); |