diff options
| -rw-r--r-- | fs/dax.c | 9 |
1 files changed, 7 insertions, 2 deletions
@@ -445,6 +445,9 @@ static void dax_associate_entry(void *entry, struct address_space *mapping, unsigned long size = dax_entry_size(entry), index; struct folio *folio = dax_to_folio(entry); + if (dax_is_zero_entry(entry) || dax_is_empty_entry(entry)) + return; + if (IS_ENABLED(CONFIG_FS_DAX_LIMITED)) return; @@ -473,6 +476,9 @@ static void dax_disassociate_entry(void *entry, struct address_space *mapping, if (IS_ENABLED(CONFIG_FS_DAX_LIMITED)) return; + if (dax_is_zero_entry(entry) || dax_is_empty_entry(entry)) + return; + dax_folio_put(folio); } @@ -1074,8 +1080,7 @@ static void *dax_insert_entry(struct xa_state *xas, struct vm_fault *vmf, void *old; dax_disassociate_entry(entry, mapping, false); - if (!(flags & DAX_ZERO_PAGE)) - dax_associate_entry(new_entry, mapping, vmf->vma, + dax_associate_entry(new_entry, mapping, vmf->vma, vmf->address, shared); /* |