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| author | Xie XiuQi <xiexiuqi@huawei.com> | 2015-06-24 16:57:30 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2015-06-24 17:49:43 -0700 |
| commit | cc637b1704d78b068c2eb700eec384c69ea56cdf (patch) | |
| tree | 3a406d52580aa7ce7b834a580922742bd3d665d4 /include/linux/mm.h | |
| parent | eb3c24f305e56caaf5c4bd34d2923839688d470e (diff) | |
| download | op-kernel-dev-cc637b1704d78b068c2eb700eec384c69ea56cdf.zip op-kernel-dev-cc637b1704d78b068c2eb700eec384c69ea56cdf.tar.gz | |
memory-failure: export page_type and action result
Export 'outcome' and 'action_page_type' to mm.h, so we could use
this emnus outside.
This patch is preparation for adding trace events for memory-failure
recovery action.
Signed-off-by: Xie XiuQi <xiexiuqi@huawei.com>
Acked-by: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Cc: Chen Gong <gong.chen@linux.intel.com>
Cc: Jim Davis <jim.epost@gmail.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Tony Luck <tony.luck@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/linux/mm.h')
| -rw-r--r-- | include/linux/mm.h | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/include/linux/mm.h b/include/linux/mm.h index cd9df66..986a9a2 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -2153,6 +2153,40 @@ extern void shake_page(struct page *p, int access); extern atomic_long_t num_poisoned_pages; extern int soft_offline_page(struct page *page, int flags); + +/* + * Error handlers for various types of pages. + */ +enum mf_outcome { + MF_IGNORED, /* Error: cannot be handled */ + MF_FAILED, /* Error: handling failed */ + MF_DELAYED, /* Will be handled later */ + MF_RECOVERED, /* Successfully recovered */ +}; + +enum mf_action_page_type { + MF_MSG_KERNEL, + MF_MSG_KERNEL_HIGH_ORDER, + MF_MSG_SLAB, + MF_MSG_DIFFERENT_COMPOUND, + MF_MSG_POISONED_HUGE, + MF_MSG_HUGE, + MF_MSG_FREE_HUGE, + MF_MSG_UNMAP_FAILED, + MF_MSG_DIRTY_SWAPCACHE, + MF_MSG_CLEAN_SWAPCACHE, + MF_MSG_DIRTY_MLOCKED_LRU, + MF_MSG_CLEAN_MLOCKED_LRU, + MF_MSG_DIRTY_UNEVICTABLE_LRU, + MF_MSG_CLEAN_UNEVICTABLE_LRU, + MF_MSG_DIRTY_LRU, + MF_MSG_CLEAN_LRU, + MF_MSG_TRUNCATED_LRU, + MF_MSG_BUDDY, + MF_MSG_BUDDY_2ND, + MF_MSG_UNKNOWN, +}; + #if defined(CONFIG_TRANSPARENT_HUGEPAGE) || defined(CONFIG_HUGETLBFS) extern void clear_huge_page(struct page *page, unsigned long addr, |
