static int ll_writepage_26(struct page *page, struct writeback_control *wbc)
{
- struct inode *inode = page->mapping->host;
- struct obd_export *exp;
- struct ll_async_page *llap;
- int rc;
- ENTRY;
-
- LASSERT(!PageDirty(page));
- LASSERT(PageLocked(page));
-
- exp = ll_i2obdexp(inode);
- if (exp == NULL)
- GOTO(out, rc = -EINVAL);
+ return ll_writepage(page);
+}
- llap = llap_from_page(page);
- if (IS_ERR(llap))
- GOTO(out, rc = PTR_ERR(llap));
+/* It is safe to not check anything in invalidatepage/releasepage below
+ because they are run with page locked and all our io is happening with
+ locked page too */
+static int ll_invalidatepage(struct page *page, unsigned long offset)
+{
+ if (PagePrivate(page))
+ ll_removepage(page);
+ return 1;
+}
- page_cache_get(page);
- if (llap->llap_write_queued) {
- LL_CDEBUG_PAGE(D_PAGE, page, "marking urgent\n");
- rc = obd_set_async_flags(exp, ll_i2info(inode)->lli_smd, NULL,
- llap->llap_cookie,
- ASYNC_READY | ASYNC_URGENT);
- } else {
- llap->llap_write_queued = 1;
- rc = obd_queue_async_io(exp, ll_i2info(inode)->lli_smd, NULL,
- llap->llap_cookie, OBD_BRW_WRITE, 0, 0,
- 0, ASYNC_READY | ASYNC_URGENT);
- if (rc == 0)
- LL_CDEBUG_PAGE(D_PAGE, page, "mmap write queued\n");
- else
- llap->llap_write_queued = 0;
- }
- if (rc)
- page_cache_release(page);
-out:
- if (rc)
- unlock_page(page);
- RETURN(rc);
+static int ll_releasepage(struct page *page, int gfp_mask)
+{
+ if (PagePrivate(page))
+ ll_removepage(page);
+ return 1;
}
struct address_space_operations ll_aops = {
.sync_page = NULL,
.prepare_write = ll_prepare_write,
.commit_write = ll_commit_write,
- .removepage = ll_removepage,
+ .invalidatepage = ll_invalidatepage,
+ .releasepage = ll_releasepage,
.bmap = NULL
};