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authorSteven Whitehouse <swhiteho@redhat.com>2008-12-19 18:32:06 +0300
committerSteven Whitehouse <swhiteho@redhat.com>2009-01-05 10:39:18 +0300
commitfefc03bfedeff2002f14e848ecb7c0cd77ee0b15 (patch)
tree830ec1d36b8688a70580e8c5c18ac5f40015448f /fs/gfs2/super.c
parent7ed122e42c72b3e4531f8b4a9f72159e8303ac15 (diff)
downloadlinux-fefc03bfedeff2002f14e848ecb7c0cd77ee0b15.tar.xz
Revert "GFS2: Fix use-after-free bug on umount"
This reverts commit 78802499912f1ba31ce83a94c55b5a980f250a43. The original patch is causing problems in relation to order of operations at umount in relation to jdata files. I need to fix this a different way. Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
Diffstat (limited to 'fs/gfs2/super.c')
-rw-r--r--fs/gfs2/super.c34
1 files changed, 34 insertions, 0 deletions
diff --git a/fs/gfs2/super.c b/fs/gfs2/super.c
index f14658b20204..141b781f2fcc 100644
--- a/fs/gfs2/super.c
+++ b/fs/gfs2/super.c
@@ -33,6 +33,40 @@
#include "trans.h"
#include "util.h"
+/**
+ * gfs2_jindex_free - Clear all the journal index information
+ * @sdp: The GFS2 superblock
+ *
+ */
+
+void gfs2_jindex_free(struct gfs2_sbd *sdp)
+{
+ struct list_head list, *head;
+ struct gfs2_jdesc *jd;
+ struct gfs2_journal_extent *jext;
+
+ spin_lock(&sdp->sd_jindex_spin);
+ list_add(&list, &sdp->sd_jindex_list);
+ list_del_init(&sdp->sd_jindex_list);
+ sdp->sd_journals = 0;
+ spin_unlock(&sdp->sd_jindex_spin);
+
+ while (!list_empty(&list)) {
+ jd = list_entry(list.next, struct gfs2_jdesc, jd_list);
+ head = &jd->extent_list;
+ while (!list_empty(head)) {
+ jext = list_entry(head->next,
+ struct gfs2_journal_extent,
+ extent_list);
+ list_del(&jext->extent_list);
+ kfree(jext);
+ }
+ list_del(&jd->jd_list);
+ iput(jd->jd_inode);
+ kfree(jd);
+ }
+}
+
static struct gfs2_jdesc *jdesc_find_i(struct list_head *head, unsigned int jid)
{
struct gfs2_jdesc *jd;