The patch titled
Subject: mm/madvise: update comment on sys_madvise()
has been removed from the -mm tree. Its filename was
mm-madvise-update-comment-on-sys_madvise.patch
This patch was dropped because it was merged into mainline or a subsystem tree
------------------------------------------------------
From: Naoya Horiguchi <n-horiguchi@xxxxxxxxxxxxx>
Subject: mm/madvise: update comment on sys_madvise()
Some new MADV_* advices are not documented in sys_madvise() comment.
So let's update it.
[akpm@xxxxxxxxxxxxxxxxxxxx: modifications suggested by Michal]
Signed-off-by: Naoya Horiguchi <n-horiguchi@xxxxxxxxxxxxx>
Acked-by: Michal Hocko <mhocko@xxxxxxxx>
Cc: Minchan Kim <minchan@xxxxxxxxxx>
Cc: "Kirill A. Shutemov" <kirill@xxxxxxxxxxxxx>
Cc: Jason Baron <jbaron@xxxxxxxxxx>
Cc: Chen Gong <gong.chen@xxxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/madvise.c | 14 ++++++++++++++
1 file changed, 14 insertions(+)
diff -puN mm/madvise.c~mm-madvise-update-comment-on-sys_madvise mm/madvise.c
--- a/mm/madvise.c~mm-madvise-update-comment-on-sys_madvise
+++ a/mm/madvise.c
@@ -639,14 +639,28 @@ madvise_behavior_valid(int behavior)
* some pages ahead.
* MADV_DONTNEED - the application is finished with the given range,
* so the kernel can free resources associated with it.
+ * MADV_FREE - the application marks pages in the given range as lazy free,
+ * where actual purges are postponed until memory pressure happens.
* MADV_REMOVE - the application wants to free up the given range of
* pages and associated backing store.
* MADV_DONTFORK - omit this area from child's address space when forking:
* typically, to avoid COWing pages pinned by get_user_pages().
* MADV_DOFORK - cancel MADV_DONTFORK: no longer omit this area when forking.
+ * MADV_HWPOISON - trigger memory error handler as if the given memory range
+ * were corrupted by unrecoverable hardware memory failure.
+ * MADV_SOFT_OFFLINE - try to soft-offline the given range of memory.
* MADV_MERGEABLE - the application recommends that KSM try to merge pages in
* this area with pages of identical content from other such areas.
* MADV_UNMERGEABLE- cancel MADV_MERGEABLE: no longer merge pages with others.
+ * MADV_HUGEPAGE - the application wants to back the given range by transparent
+ * huge pages in the future. Existing pages might be coalesced and
+ * new pages might be allocated as THP.
+ * MADV_NOHUGEPAGE - mark the given range as not worth being backed by
+ * transparent huge pages so the existing pages will not be
+ * coalesced into THP and new pages will not be allocated as THP.
+ * MADV_DONTDUMP - the application wants to prevent pages in the given range
+ * from being included in its core dump.
+ * MADV_DODUMP - cancel MADV_DONTDUMP: no longer exclude from core dump.
*
* return values:
* zero - success
_
Patches currently in -mm which might be from n-horiguchi@xxxxxxxxxxxxx are
proc-kpageflags-return-kpf_buddy-for-tail-buddy-pages.patch
proc-kpageflags-return-kpf_slab-for-slab-tail-pages.patch
tools-vm-page-typesc-support-swap-entry.patch
tools-vm-page-typesc-avoid-memset-in-walk_pfn-when-count-==-1.patch
--
To unsubscribe from this list: send the line "unsubscribe mm-commits" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
