From: Matt Mackall <mpm@selenic.com>
To: Andrew Morton <akpm@linux-foundation.org>, linux-kernel@vger.kernel.org
Cc: Dave Hansen <haveblue@us.ibm.com>,
Rusty Russell <rusty@rustcorp.com.au>,
Jeremy Fitzhardinge <jeremy@goop.org>,
David Rientjes <rientjes@google.com>,
Fengguang Wu <wfg@mail.ustc.edu.cn>
Subject: [PATCH 3/12] maps4: move is_swap_pte
Date: Fri, 26 Oct 2007 11:36:29 -0500 [thread overview]
Message-ID: <4.430487409@selenic.com> (raw)
In-Reply-To: <1.430487409@selenic.com>
Move is_swap_pte helper function to swapops.h for use by pagemap code
Signed-off-by: Matt Mackall <mpm@selenic.com>
Index: l/include/linux/swapops.h
===================================================================
--- l.orig/include/linux/swapops.h 2007-10-09 17:36:25.000000000 -0500
+++ l/include/linux/swapops.h 2007-10-10 11:46:34.000000000 -0500
@@ -42,6 +42,12 @@ static inline pgoff_t swp_offset(swp_ent
return entry.val & SWP_OFFSET_MASK(entry);
}
+/* check whether a pte points to a swap entry */
+static inline int is_swap_pte(pte_t pte)
+{
+ return !pte_none(pte) && !pte_present(pte) && !pte_file(pte);
+}
+
/*
* Convert the arch-dependent pte representation of a swp_entry_t into an
* arch-independent swp_entry_t.
Index: l/mm/migrate.c
===================================================================
--- l.orig/mm/migrate.c 2007-10-09 17:37:59.000000000 -0500
+++ l/mm/migrate.c 2007-10-10 11:46:34.000000000 -0500
@@ -114,11 +114,6 @@ int putback_lru_pages(struct list_head *
return count;
}
-static inline int is_swap_pte(pte_t pte)
-{
- return !pte_none(pte) && !pte_present(pte) && !pte_file(pte);
-}
-
/*
* Restore a potential migration pte to a working pte entry
*/
next prev parent reply other threads:[~2007-10-26 16:37 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-10-26 16:36 [PATCH 0/12] maps4: pagemap monitoring v4 Matt Mackall
2007-10-26 16:36 ` [PATCH 1/12] maps4: add proportional set size accounting in smaps Matt Mackall
2007-10-26 16:36 ` [PATCH 2/12] maps4: From: Dave Hansen <haveblue@us.ibm.com> Matt Mackall
2007-10-26 21:22 ` David Rientjes
2007-10-26 16:36 ` Matt Mackall [this message]
2007-10-26 16:36 ` [PATCH 4/12] maps4: introduce a generic page walker Matt Mackall
2007-10-26 16:36 ` [PATCH 5/12] maps4: use pagewalker in clear_refs and smaps Matt Mackall
2007-10-26 16:36 ` [PATCH 6/12] maps4: simplify interdependence of maps " Matt Mackall
2007-10-26 21:22 ` David Rientjes
2007-10-26 16:36 ` [PATCH 7/12] maps4: move clear_refs code to task_mmu.c Matt Mackall
2007-10-26 16:36 ` [PATCH 8/12] maps4: regroup task_mmu by interface Matt Mackall
2007-10-26 16:36 ` [PATCH 9/12] maps4: add /proc/pid/pagemap interface Matt Mackall
2007-10-26 16:36 ` [PATCH 10/12] maps4: add /proc/kpagecount interface Matt Mackall
2007-10-26 16:36 ` [PATCH 11/12] maps4: add /proc/kpageflags interface Matt Mackall
2007-10-26 16:36 ` [PATCH 12/12] maps4: make page monitoring /proc file optional Matt Mackall
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