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authorAndré Fabian Silva Delgado <emulatorman@parabola.nu>2016-03-26 05:33:09 -0300
committerAndré Fabian Silva Delgado <emulatorman@parabola.nu>2016-03-26 05:33:09 -0300
commit4a327fcef90ba27150a3e8741441b68c605ae248 (patch)
treededef84cccbd02054df4cfb844dd3c9d588edf83 /include/linux/page-flags.h
parenta156245300d5362a3b4c4afdace9e2b90169fe43 (diff)
Add TuxOnIce support adapted for the 4.5-gnu kernel versionpck-4.5-gnu
Diffstat (limited to 'include/linux/page-flags.h')
-rw-r--r--include/linux/page-flags.h25
1 files changed, 23 insertions, 2 deletions
diff --git a/include/linux/page-flags.h b/include/linux/page-flags.h
index 19724e6eb..2e7ecb771 100644
--- a/include/linux/page-flags.h
+++ b/include/linux/page-flags.h
@@ -101,6 +101,12 @@ enum pageflags {
#ifdef CONFIG_MEMORY_FAILURE
PG_hwpoison, /* hardware poisoned page. Don't touch */
#endif
+#ifdef CONFIG_TOI_INCREMENTAL
+ PG_toi_untracked, /* Don't track dirtiness of this page - assume always dirty */
+ PG_toi_ro, /* Page was made RO by TOI */
+ PG_toi_cbw, /* Copy the page before it is written to */
+ PG_toi_dirty, /* Page has been modified */
+#endif
#if defined(CONFIG_IDLE_PAGE_TRACKING) && defined(CONFIG_64BIT)
PG_young,
PG_idle,
@@ -343,6 +349,17 @@ TESTSCFLAG(HWPoison, hwpoison, PF_ANY)
PAGEFLAG_FALSE(HWPoison)
#define __PG_HWPOISON 0
#endif
+#ifdef CONFIG_TOI_INCREMENTAL
+PAGEFLAG(TOI_RO, toi_ro)
+PAGEFLAG(TOI_Dirty, toi_dirty)
+PAGEFLAG(TOI_Untracked, toi_untracked)
+PAGEFLAG(TOI_CBW, toi_cbw)
+#else
+PAGEFLAG_FALSE(TOI_RO)
+PAGEFLAG_FALSE(TOI_Dirty)
+PAGEFLAG_FALSE(TOI_Untracked)
+PAGEFLAG_FALSE(TOI_CBW)
+#endif
#if defined(CONFIG_IDLE_PAGE_TRACKING) && defined(CONFIG_64BIT)
TESTPAGEFLAG(Young, young, PF_ANY)
@@ -665,8 +682,12 @@ static inline void ClearPageSlabPfmemalloc(struct page *page)
* __PG_HWPOISON is exceptional because it needs to be kept beyond page's
* alloc-free cycle to prevent from reusing the page.
*/
-#define PAGE_FLAGS_CHECK_AT_PREP \
- (((1 << NR_PAGEFLAGS) - 1) & ~__PG_HWPOISON)
+#ifdef CONFIG_TOI_INCREMENTAL
+#define PAGE_FLAGS_CHECK_AT_PREP (((1 << NR_PAGEFLAGS) - 1) & \
+ ~((1 << PG_toi_dirty) | (1 << PG_toi_ro) | ~__PG_HWPOISON))
+#else
+#define PAGE_FLAGS_CHECK_AT_PREP (((1 << NR_PAGEFLAGS) - 1) & ~__PG_HWPOISON)
+#endif
#define PAGE_FLAGS_PRIVATE \
(1 << PG_private | 1 << PG_private_2)