PTE is dirty only when _PAGE_DIRTY bit is set, not _PAGE_SOFT_DIRTY. This misbehavior was introduced on importing RHEL7 kernel-3.10.0-229.7.2.el7 So, it seems to be the reason of twice writeback of mapped files & similar issues.
See also: jira.sw.ru/browse/PSBM-42094 Signed-off-by: Dmitry Safonov <[email protected]> Cc: Cyrill Gorcunov <[email protected]> Cc: Vladimir Davydov <[email protected]> Cc: Konstantin Khorenko <[email protected]> --- arch/x86/include/asm/pgtable.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/x86/include/asm/pgtable.h b/arch/x86/include/asm/pgtable.h index f909164..da8b030 100644 --- a/arch/x86/include/asm/pgtable.h +++ b/arch/x86/include/asm/pgtable.h @@ -90,7 +90,7 @@ extern struct mm_struct *pgd_page_get_mm(struct page *page); */ static inline int pte_dirty(pte_t pte) { - return pte_flags(pte) & (_PAGE_DIRTY | _PAGE_SOFT_DIRTY); + return pte_flags(pte) & _PAGE_DIRTY; } static inline int pte_young(pte_t pte) -- 2.6.4 _______________________________________________ Devel mailing list [email protected] https://lists.openvz.org/mailman/listinfo/devel
