[PATCH] mm: schedule find_trylock_page() removal

find_trylock_page() is an odd interface in that it doesn't take a reference
like the others.  Now that XFS no longer uses it, and its last remaining
caller actually wants an elevated refcount, opencode that callsite and
schedule find_trylock_page() for removal.

Signed-off-by: Nick Piggin <npiggin@suse.de>
Acked-by: Hugh Dickins <hugh@veritas.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 12 insertions, 0 deletions

diff --git a/Documentation/feature-removal-schedule.txt b/Documentation/feature-removal-schedule.txt
index 495858b236b6..a92b10bb0b03 100644
--- a/Documentation/feature-removal-schedule.txt
+++ b/Documentation/feature-removal-schedule.txt
@@ -241,3 +241,15 @@ Why:	The USB subsystem has changed a lot over time, and it has been
 Who:    Greg Kroah-Hartman <gregkh@suse.de>
 
 ---------------------------
+
+What:   find_trylock_page
+When:   January 2007
+Why:    The interface no longer has any callers left in the kernel. It
+        is an odd interface (compared with other find_*_page functions), in
+        that it does not take a refcount to the page, only the page lock.
+        It should be replaced with find_get_page or find_lock_page if possible.
+        This feature removal can be reevaluated if users of the interface
+        cannot cleanly use something else.
+Who:    Nick Piggin <npiggin@suse.de>
+
+---------------------------