1 files changed, 45 insertions, 17 deletions

diff --git a/fs/gfs2/trans.c b/fs/gfs2/trans.c
index 63fec11ef2ce..6df65540e13d 100644
--- a/fs/gfs2/trans.c
+++ b/fs/gfs2/trans.c
@@ -49,7 +49,7 @@ int __gfs2_trans_begin(struct gfs2_trans *tr, struct gfs2_sbd *sdp,
 	}
 	BUG_ON(blocks == 0 && revokes == 0);
 
-	if (!test_bit(SDF_JOURNAL_LIVE, &sdp->sd_flags))
+	if (gfs2_withdrawn(sdp))
 		return -EROFS;
 
 	tr->tr_ip = ip;
@@ -85,25 +85,30 @@ int __gfs2_trans_begin(struct gfs2_trans *tr, struct gfs2_sbd *sdp,
 	 */
 
 	down_read(&sdp->sd_log_flush_lock);
+	if (unlikely(!test_bit(SDF_JOURNAL_LIVE, &sdp->sd_flags)))
+		goto out_not_live;
 	if (gfs2_log_try_reserve(sdp, tr, &extra_revokes))
 		goto reserved;
+
 	up_read(&sdp->sd_log_flush_lock);
 	gfs2_log_reserve(sdp, tr, &extra_revokes);
 	down_read(&sdp->sd_log_flush_lock);
-
-reserved:
-	gfs2_log_release_revokes(sdp, extra_revokes);
 	if (unlikely(!test_bit(SDF_JOURNAL_LIVE, &sdp->sd_flags))) {
-		gfs2_log_release_revokes(sdp, tr->tr_revokes);
-		up_read(&sdp->sd_log_flush_lock);
+		revokes = tr->tr_revokes + extra_revokes;
+		gfs2_log_release_revokes(sdp, revokes);
 		gfs2_log_release(sdp, tr->tr_reserved);
-		sb_end_intwrite(sdp->sd_vfs);
-		return -EROFS;
+		goto out_not_live;
 	}
 
+reserved:
+	gfs2_log_release_revokes(sdp, extra_revokes);
 	current->journal_info = tr;
-
 	return 0;
+
+out_not_live:
+	up_read(&sdp->sd_log_flush_lock);
+	sb_end_intwrite(sdp->sd_vfs);
+	return -EROFS;
 }
 
 int gfs2_trans_begin(struct gfs2_sbd *sdp, unsigned int blocks,
@@ -226,14 +231,35 @@ out:
 	unlock_buffer(bh);
 }
 
+void gfs2_trans_add_databufs(struct gfs2_glock *gl, struct folio *folio,
+			     size_t from, size_t len)
+{
+	struct buffer_head *head = folio_buffers(folio);
+	unsigned int bsize = head->b_size;
+	struct buffer_head *bh;
+	size_t to = from + len;
+	size_t start, end;
+
+	for (bh = head, start = 0; bh != head || !start;
+	     bh = bh->b_this_page, start = end) {
+		end = start + bsize;
+		if (end <= from)
+			continue;
+		if (start >= to)
+			break;
+		set_buffer_uptodate(bh);
+		gfs2_trans_add_data(gl, bh);
+	}
+}
+
 void gfs2_trans_add_meta(struct gfs2_glock *gl, struct buffer_head *bh)
 {
 
 	struct gfs2_sbd *sdp = gl->gl_name.ln_sbd;
+	struct super_block *sb = sdp->sd_vfs;
 	struct gfs2_bufdata *bd;
 	struct gfs2_meta_header *mh;
 	struct gfs2_trans *tr = current->journal_info;
-	enum gfs2_freeze_state state = atomic_read(&sdp->sd_freeze_state);
 
 	lock_buffer(bh);
 	if (buffer_pinned(bh)) {
@@ -245,12 +271,12 @@ void gfs2_trans_add_meta(struct gfs2_glock *gl, struct buffer_head *bh)
 	if (bd == NULL) {
 		gfs2_log_unlock(sdp);
 		unlock_buffer(bh);
-		lock_page(bh->b_page);
+		folio_lock(bh->b_folio);
 		if (bh->b_private == NULL)
 			bd = gfs2_alloc_bufdata(gl, bh);
 		else
 			bd = bh->b_private;
-		unlock_page(bh->b_page);
+		folio_unlock(bh->b_folio);
 		lock_buffer(bh);
 		gfs2_log_lock(sdp);
 	}
@@ -267,13 +293,15 @@ void gfs2_trans_add_meta(struct gfs2_glock *gl, struct buffer_head *bh)
 		       (unsigned long long)bd->bd_bh->b_blocknr);
 		BUG();
 	}
-	if (unlikely(state == SFS_FROZEN)) {
-		fs_info(sdp, "GFS2:adding buf while frozen\n");
-		gfs2_assert_withdraw(sdp, 0);
-	}
-	if (unlikely(gfs2_withdrawn(sdp))) {
+	if (gfs2_withdrawn(sdp)) {
 		fs_info(sdp, "GFS2:adding buf while withdrawn! 0x%llx\n",
 			(unsigned long long)bd->bd_bh->b_blocknr);
+		goto out_unlock;
+	}
+	if (unlikely(sb->s_writers.frozen == SB_FREEZE_COMPLETE)) {
+		fs_info(sdp, "GFS2:adding buf while frozen\n");
+		gfs2_withdraw(sdp);
+		goto out_unlock;
 	}
 	gfs2_pin(sdp, bd->bd_bh);
 	mh->__pad0 = cpu_to_be64(0);