diff options
| author | Steven Whitehouse <swhiteho@redhat.com> | 2008-10-15 09:46:39 +0100 |
|---|---|---|
| committer | Steven Whitehouse <swhiteho@redhat.com> | 2009-01-05 07:38:49 +0000 |
| commit | 1bb7322fd0d5abdce396de51cbc5dbc489523018 (patch) | |
| tree | fb602151904bbfaa10dc671a059acce90011eca9 /fs/gfs2/ops_super.c | |
| parent | b276058371f5c2ad92f9f27373a72b219ed580ed (diff) | |
GFS2: Fix up jdata writepage/delete_inode
There is a bug in writepage and delete_inode which allows jdata files to
invalidate pages from the address space without being in a transaction at
the time. This causes problems in case the pages are in the journal. This
patch fixes that case and prevents the resulting oops.
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
Diffstat (limited to 'fs/gfs2/ops_super.c')
| -rw-r--r-- | fs/gfs2/ops_super.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/fs/gfs2/ops_super.c b/fs/gfs2/ops_super.c index 9c7678db08f..2cb744ba3b7 100644 --- a/fs/gfs2/ops_super.c +++ b/fs/gfs2/ops_super.c @@ -493,7 +493,7 @@ static void gfs2_delete_inode(struct inode *inode) gfs2_holder_reinit(LM_ST_EXCLUSIVE, LM_FLAG_TRY_1CB | GL_NOCACHE, &ip->i_iopen_gh); error = gfs2_glock_nq(&ip->i_iopen_gh); if (error) - goto out_uninit; + goto out_truncate; if (S_ISDIR(inode->i_mode) && (ip->i_di.di_flags & GFS2_DIF_EXHASH)) { @@ -518,6 +518,7 @@ static void gfs2_delete_inode(struct inode *inode) if (error) goto out_unlock; +out_truncate: error = gfs2_trans_begin(sdp, 0, sdp->sd_jdesc->jd_blocks); if (error) goto out_unlock; @@ -526,8 +527,8 @@ static void gfs2_delete_inode(struct inode *inode) gfs2_trans_end(sdp); out_unlock: - gfs2_glock_dq(&ip->i_iopen_gh); -out_uninit: + if (test_bit(HIF_HOLDER, &ip->i_iopen_gh.gh_iflags)) + gfs2_glock_dq(&ip->i_iopen_gh); gfs2_holder_uninit(&ip->i_iopen_gh); gfs2_glock_dq_uninit(&gh); if (error && error != GLR_TRYFAILED) |