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authorBob Peterson <rpeterso@redhat.com>2020-06-05 22:12:34 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2020-09-23 13:40:33 +0300
commit29dd419f56fca48abdddbff386b4a9f6caab05af (patch)
treefcd3574183de75c14ad4bdce5d634a0345f6f841
parentbdc3a8f6a8e8b798c46683a98b97d52b3a5708e4 (diff)
downloadlinux-29dd419f56fca48abdddbff386b4a9f6caab05af.tar.xz
gfs2: initialize transaction tr_ailX_lists earlier
commit cbcc89b630447ec7836aa2b9242d9bb1725f5a61 upstream. Since transactions may be freed shortly after they're created, before a log_flush occurs, we need to initialize their ail1 and ail2 lists earlier. Before this patch, the ail1 list was initialized in gfs2_log_flush(). This moves the initialization to the point when the transaction is first created. Signed-off-by: Bob Peterson <rpeterso@redhat.com> Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com> Cc: Salvatore Bonaccorso <carnil@debian.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-rw-r--r--fs/gfs2/glops.c2
-rw-r--r--fs/gfs2/log.c2
-rw-r--r--fs/gfs2/trans.c2
3 files changed, 4 insertions, 2 deletions
diff --git a/fs/gfs2/glops.c b/fs/gfs2/glops.c
index 83cf64da474c..d5b9274662db 100644
--- a/fs/gfs2/glops.c
+++ b/fs/gfs2/glops.c
@@ -87,6 +87,8 @@ static void gfs2_ail_empty_gl(struct gfs2_glock *gl)
memset(&tr, 0, sizeof(tr));
INIT_LIST_HEAD(&tr.tr_buf);
INIT_LIST_HEAD(&tr.tr_databuf);
+ INIT_LIST_HEAD(&tr.tr_ail1_list);
+ INIT_LIST_HEAD(&tr.tr_ail2_list);
tr.tr_revokes = atomic_read(&gl->gl_ail_count);
if (!tr.tr_revokes) {
diff --git a/fs/gfs2/log.c b/fs/gfs2/log.c
index a4b6a49462a4..00a90fc72597 100644
--- a/fs/gfs2/log.c
+++ b/fs/gfs2/log.c
@@ -810,8 +810,6 @@ void gfs2_log_flush(struct gfs2_sbd *sdp, struct gfs2_glock *gl, u32 flags)
tr = sdp->sd_log_tr;
if (tr) {
sdp->sd_log_tr = NULL;
- INIT_LIST_HEAD(&tr->tr_ail1_list);
- INIT_LIST_HEAD(&tr->tr_ail2_list);
tr->tr_first = sdp->sd_log_flush_head;
if (unlikely (state == SFS_FROZEN))
gfs2_assert_withdraw(sdp, !tr->tr_num_buf_new && !tr->tr_num_databuf_new);
diff --git a/fs/gfs2/trans.c b/fs/gfs2/trans.c
index 9d4227330de4..2a12d30ae0de 100644
--- a/fs/gfs2/trans.c
+++ b/fs/gfs2/trans.c
@@ -53,6 +53,8 @@ int gfs2_trans_begin(struct gfs2_sbd *sdp, unsigned int blocks,
sizeof(u64));
INIT_LIST_HEAD(&tr->tr_databuf);
INIT_LIST_HEAD(&tr->tr_buf);
+ INIT_LIST_HEAD(&tr->tr_ail1_list);
+ INIT_LIST_HEAD(&tr->tr_ail2_list);
sb_start_intwrite(sdp->sd_vfs);