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Diffstat (limited to 'drivers/staging/zcache/ramster/ramster.c')
-rw-r--r--drivers/staging/zcache/ramster/ramster.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/staging/zcache/ramster/ramster.c b/drivers/staging/zcache/ramster/ramster.c
index b18b887db79..a937ce1fa27 100644
--- a/drivers/staging/zcache/ramster/ramster.c
+++ b/drivers/staging/zcache/ramster/ramster.c
@@ -66,8 +66,6 @@ static int ramster_remote_target_nodenum __read_mostly = -1;
/* Used by this code. */
long ramster_flnodes;
-ssize_t ramster_foreign_eph_pages;
-ssize_t ramster_foreign_pers_pages;
/* FIXME frontswap selfshrinking knobs in debugfs? */
static LIST_HEAD(ramster_rem_op_list);
@@ -399,14 +397,18 @@ void ramster_count_foreign_pages(bool eph, int count)
inc_ramster_foreign_eph_pages();
} else {
dec_ramster_foreign_eph_pages();
+#ifdef CONFIG_RAMSTER_DEBUG
WARN_ON_ONCE(ramster_foreign_eph_pages < 0);
+#endif
}
} else {
if (count > 0) {
inc_ramster_foreign_pers_pages();
} else {
dec_ramster_foreign_pers_pages();
+#ifdef CONFIG_RAMSTER_DEBUG
WARN_ON_ONCE(ramster_foreign_pers_pages < 0);
+#endif
}
}
}