Messages in this thread | | | Date | Mon, 18 Dec 2006 16:04:45 -0800 (PST) | From | Linus Torvalds <> | Subject | Re: 2.6.19 file content corruption on ext3 |
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On Tue, 19 Dec 2006, Andrei Popa wrote: > > > > There's exactly two call sites that call "page_mkclean()" (an dthat is the > > only thing in turn that calls "page_mkclean_one()", which we already > > determined will cause the corruption). > > > > Can you just TOTALLY DISABLE that case for the test_clear_page_dirty() > > case? Just do an "#if 0 .. #endif" around that whole if-statement, leaving > > the _only_ thing that actually calls "page_mkclean()" to be the > > "clear_page_dirty_for_io()" call. > > > > Do you still see corruption? > > nope, no file corruption at all.
Ok. That's interesting, but I think you actually #ifdef'ed out too much:
> + > +#if 0 > if (TestClearPageDirty(page)) { > radix_tree_tag_clear(&mapping->page_tree, > page_index(page), PAGECACHE_TAG_DIRTY); > @@ -866,11 +868,19 @@ int test_clear_page_dirty(struct page *p > * page is locked, which pins the address_space > */ > if (mapping_cap_account_dirty(mapping)) { > - page_mkclean(page); > + int cleaned = page_mkclean(page); > + if (!must_clean_ptes && cleaned){ > + WARN_ON(1); > + set_page_dirty(page); > + } > + > dec_zone_page_state(page, NR_FILE_DIRTY); > } > return 1; > } > + > +#endif > +
It was really just the _inner_ "if (mapping_cap_account_dirty(.." statement that I meant you should remove.
Can you try that too?
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