GFS2: Move gfs2_icbit_munge into quota.c

This function is only called twice, and both callers are
quota related, so lets move this function into quota.c and
make it static.

Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>

1 files changed, 20 insertions, 0 deletions

diff --git a/fs/gfs2/quota.c b/fs/gfs2/quota.c
index 8fe7a0a87c80..fd1ec5243d2e 100644
--- a/fs/gfs2/quota.c
+++ b/fs/gfs2/quota.c
@@ -289,6 +289,26 @@ static void slot_hold(struct gfs2_quota_data *qd)
         spin_unlock(&qd_lru_lock);
 }
 
+static void gfs2_icbit_munge(struct gfs2_sbd *sdp, unsigned char **bitmap,
+                             unsigned int bit, int new_value)
+{
+        unsigned int c, o, b = bit;
+        int old_value;
+
+        c = b / (8 * PAGE_SIZE);
+        b %= 8 * PAGE_SIZE;
+        o = b / 8;
+        b %= 8;
+
+        old_value = (bitmap[c][o] & (1 << b));
+        gfs2_assert_withdraw(sdp, !old_value != !new_value);
+
+        if (new_value)
+                bitmap[c][o] |= 1 << b;
+        else
+                bitmap[c][o] &= ~(1 << b);
+}
+
 static void slot_put(struct gfs2_quota_data *qd)
 {
         struct gfs2_sbd *sdp = qd->qd_gl->gl_sbd;