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authorMikulas Patocka <mpatocka@redhat.com>2022-11-15 20:51:50 +0300
committerMike Snitzer <snitzer@kernel.org>2022-11-18 19:05:09 +0300
commit984bf2cc531e778e49298fdf6730e0396166aa21 (patch)
treec3a78e764056fff180d9979e7fbda78b18ae41e2 /drivers
parent5e5dab5ec763d600fe0a67837dd9155bdc42f961 (diff)
downloadlinux-984bf2cc531e778e49298fdf6730e0396166aa21.tar.xz
dm integrity: clear the journal on suspend
There was a problem that a user burned a dm-integrity image on CDROM and could not activate it because it had a non-empty journal. Fix this problem by flushing the journal (done by the previous commit) and clearing the journal (done by this commit). Once the journal is cleared, dm-integrity won't attempt to replay it on the next activation. Signed-off-by: Mikulas Patocka <mpatocka@redhat.com> Signed-off-by: Mike Snitzer <snitzer@kernel.org>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/md/dm-integrity.c13
1 files changed, 13 insertions, 0 deletions
diff --git a/drivers/md/dm-integrity.c b/drivers/md/dm-integrity.c
index b4a873cff725..648fdfecc42c 100644
--- a/drivers/md/dm-integrity.c
+++ b/drivers/md/dm-integrity.c
@@ -263,6 +263,7 @@ struct dm_integrity_c {
struct completion crypto_backoff;
+ bool wrote_to_journal;
bool journal_uptodate;
bool just_formatted;
bool recalculate_flag;
@@ -2375,6 +2376,8 @@ static void integrity_commit(struct work_struct *w)
if (!commit_sections)
goto release_flush_bios;
+ ic->wrote_to_journal = true;
+
i = commit_start;
for (n = 0; n < commit_sections; n++) {
for (j = 0; j < ic->journal_section_entries; j++) {
@@ -3100,6 +3103,14 @@ static void dm_integrity_postsuspend(struct dm_target *ti)
queue_work(ic->writer_wq, &ic->writer_work);
drain_workqueue(ic->writer_wq);
dm_integrity_flush_buffers(ic, true);
+ if (ic->wrote_to_journal) {
+ init_journal(ic, ic->free_section,
+ ic->journal_sections - ic->free_section, ic->commit_seq);
+ if (ic->free_section) {
+ init_journal(ic, 0, ic->free_section,
+ next_commit_seq(ic->commit_seq));
+ }
+ }
}
if (ic->mode == 'B') {
@@ -3127,6 +3138,8 @@ static void dm_integrity_resume(struct dm_target *ti)
DEBUG_print("resume\n");
+ ic->wrote_to_journal = false;
+
if (ic->provided_data_sectors != old_provided_data_sectors) {
if (ic->provided_data_sectors > old_provided_data_sectors &&
ic->mode == 'B' &&