From ddf4b426aababdae4cb96326d7aeb9d119f42c50 Mon Sep 17 00:00:00 2001 From: Benjamin Marzinski Date: Fri, 1 Jun 2007 14:21:38 -0500 Subject: [GFS2] fix jdata issues This is a patch for the first three issues of RHBZ #238162 The first issue is that when you allocate a new page for a file, it will not start off uptodate. This makes sense, since you haven't written anything to that part of the file yet. Unfortunately, gfs2_pin() checks to make sure that the buffers are uptodate. The solution to this is to mark the buffers uptodate in gfs2_commit_write(), after they have been zeroed out and have the data written into them. I'm pretty confident with this fix, although it's not completely obvious that there is no problem with marking the buffers uptodate here. The second issue is simply that you can try to pin a data buffer that is already on the incore log, and thus, already pinned. This patch checks to see if this buffer is already on the log, and exits databuf_lo_add() if it is, just like buf_lo_add() does. The third issue is that gfs2_log_flush() doesn't do it's block accounting correctly. Both metadata and journaled data are logged, but gfs2_log_flush() only compares the number of metadata blocks with the number of blocks to commit to the ondisk journal. This patch also counts the journaled data blocks. Signed-off-by: Benjamin Marzinski Signed-off-by: Steven Whitehouse --- fs/gfs2/log.c | 2 +- fs/gfs2/lops.c | 2 ++ fs/gfs2/ops_address.c | 2 ++ 3 files changed, 5 insertions(+), 1 deletion(-) (limited to 'fs') diff --git a/fs/gfs2/log.c b/fs/gfs2/log.c index 586923d24e6..1fb846fc545 100644 --- a/fs/gfs2/log.c +++ b/fs/gfs2/log.c @@ -566,7 +566,7 @@ void gfs2_log_flush(struct gfs2_sbd *sdp, struct gfs2_glock *gl) INIT_LIST_HEAD(&ai->ai_ail1_list); INIT_LIST_HEAD(&ai->ai_ail2_list); - gfs2_assert_withdraw(sdp, sdp->sd_log_num_buf == sdp->sd_log_commited_buf); + gfs2_assert_withdraw(sdp, sdp->sd_log_num_buf + sdp->sd_log_num_jdata == sdp->sd_log_commited_buf); gfs2_assert_withdraw(sdp, sdp->sd_log_num_revoke == sdp->sd_log_commited_revoke); diff --git a/fs/gfs2/lops.c b/fs/gfs2/lops.c index f82d84d05d2..3e971f25120 100644 --- a/fs/gfs2/lops.c +++ b/fs/gfs2/lops.c @@ -475,6 +475,8 @@ static void databuf_lo_add(struct gfs2_sbd *sdp, struct gfs2_log_element *le) tr->tr_num_buf++; list_add(&bd->bd_list_tr, &tr->tr_list_buf); gfs2_log_unlock(sdp); + if (!list_empty(&le->le_list)) + return; gfs2_pin(sdp, bd->bd_bh); tr->tr_num_buf_new++; } else { diff --git a/fs/gfs2/ops_address.c b/fs/gfs2/ops_address.c index fb84478e1df..ac565952138 100644 --- a/fs/gfs2/ops_address.c +++ b/fs/gfs2/ops_address.c @@ -50,6 +50,8 @@ static void gfs2_page_add_databufs(struct gfs2_inode *ip, struct page *page, end = start + bsize; if (end <= from || start >= to) continue; + if (gfs2_is_jdata(ip)) + set_buffer_uptodate(bh); gfs2_trans_add_bh(ip->i_gl, bh, 0); } } -- cgit v1.2.3