[GFS2] Fix a ref count bug and other clean ups

This fixes a ref count bug that sometimes showed up a umount time
(causing it to hang) but it otherwise mostly harmless. At the same
time there are some clean ups including making the log operations
structures const, moving a memory allocation so that its not done
in the fast path of checking to see if there is an outstanding
transaction related to a particular glock.

Removes the sd_log_wrap varaible which was updated, but never actually
used anywhere. Updates the gfs2 ioctl() to run without the kernel lock
(which it never needed anyway). Removes the "invalidate inodes" loop
from GFS2's put_super routine. This is done in kill super anyway so
we don't need to do it here. The loop was also bogus in that if there
are any inodes "stuck" at this point its a bug and we need to know
about it rather than hide it by hanging forever.

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

1 files changed, 5 insertions, 5 deletions

diff --git a/fs/gfs2/meta_io.c b/fs/gfs2/meta_io.c
index b85fa2464666..4a6aacf294d5 100644
--- a/fs/gfs2/meta_io.c
+++ b/fs/gfs2/meta_io.c
@@ -59,11 +59,12 @@ static int gfs2_aspace_writepage(struct page *page,
 
 static void stuck_releasepage(struct buffer_head *bh)
 {
-        struct gfs2_sbd *sdp = bh->b_page->mapping->host->i_sb->s_fs_info;
+        struct inode *inode = bh->b_page->mapping->host;
+        struct gfs2_sbd *sdp = inode->i_sb->s_fs_info;
         struct gfs2_bufdata *bd = bh->b_private;
         struct gfs2_glock *gl;
 
-        fs_warn(sdp, "stuck in gfs2_releasepage()\n");
+        fs_warn(sdp, "stuck in gfs2_releasepage() %p\n", inode);
         fs_warn(sdp, "blkno = %llu, bh->b_count = %d\n",
                 (uint64_t)bh->b_blocknr, atomic_read(&bh->b_count));
         fs_warn(sdp, "pinned = %u\n", buffer_pinned(bh));
@@ -191,7 +192,6 @@ struct inode *gfs2_aspace_get(struct gfs2_sbd *sdp)
                 aspace->u.generic_ip = NULL;
                 insert_inode_hash(aspace);
         }
-
         return aspace;
 }
 
@@ -353,7 +353,7 @@ void gfs2_ail_empty_gl(struct gfs2_glock *gl)
         gfs2_log_unlock(sdp);
 
         gfs2_trans_end(sdp);
-        gfs2_log_flush(sdp);
+        gfs2_log_flush(sdp, NULL);
 }
 
 /**
@@ -876,7 +876,7 @@ void gfs2_meta_ra(struct gfs2_glock *gl, uint64_t dblock, uint32_t extlen)
 
 void gfs2_meta_syncfs(struct gfs2_sbd *sdp)
 {
-        gfs2_log_flush(sdp);
+        gfs2_log_flush(sdp, NULL);
         for (;;) {
                 gfs2_ail1_start(sdp, DIO_ALL);
                 if (gfs2_ail1_empty(sdp, DIO_ALL))