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author | Linus Torvalds <torvalds@linux-foundation.org> | 2022-11-18 23:23:35 +0300 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2022-11-18 23:23:35 +0300 |
commit | 5556a78c744347216cff46f20359412445278ac2 (patch) | |
tree | cc750861d4cb8580b7c434bbbd56a1115b411d57 /drivers | |
parent | 950a9f564aeade8f7b263bb8e9646c4c13ffd424 (diff) | |
parent | 984bf2cc531e778e49298fdf6730e0396166aa21 (diff) | |
download | linux-5556a78c744347216cff46f20359412445278ac2.tar.xz |
Merge tag 'for-6.1/dm-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm
Pull device mapper fixes from Mike Snitzer:
- Fix misbehavior if list_versions DM ioctl races with module loading
- Fix missing decrement of no_sleep_enabled if dm_bufio_client_create
failed
- Allow DM integrity devices to be activated in read-only mode
* tag 'for-6.1/dm-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm:
dm integrity: clear the journal on suspend
dm integrity: flush the journal on suspend
dm bufio: Fix missing decrement of no_sleep_enabled if dm_bufio_client_create failed
dm ioctl: fix misbehavior if list_versions races with module loading
Diffstat (limited to 'drivers')
-rw-r--r-- | drivers/md/dm-bufio.c | 2 | ||||
-rw-r--r-- | drivers/md/dm-integrity.c | 20 | ||||
-rw-r--r-- | drivers/md/dm-ioctl.c | 4 |
3 files changed, 18 insertions, 8 deletions
diff --git a/drivers/md/dm-bufio.c b/drivers/md/dm-bufio.c index 9c5ef818ca36..bb786c39545e 100644 --- a/drivers/md/dm-bufio.c +++ b/drivers/md/dm-bufio.c @@ -1858,6 +1858,8 @@ bad: dm_io_client_destroy(c->dm_io); bad_dm_io: mutex_destroy(&c->lock); + if (c->no_sleep) + static_branch_dec(&no_sleep_enabled); kfree(c); bad_client: return ERR_PTR(r); diff --git a/drivers/md/dm-integrity.c b/drivers/md/dm-integrity.c index aaf2472df6e5..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++) { @@ -2591,10 +2594,6 @@ static void integrity_writer(struct work_struct *w) unsigned prev_free_sectors; - /* the following test is not needed, but it tests the replay code */ - if (unlikely(dm_post_suspending(ic->ti)) && !ic->meta_dev) - return; - spin_lock_irq(&ic->endio_wait.lock); write_start = ic->committed_section; write_sections = ic->n_committed_sections; @@ -3101,10 +3100,17 @@ static void dm_integrity_postsuspend(struct dm_target *ti) drain_workqueue(ic->commit_wq); if (ic->mode == 'J') { - if (ic->meta_dev) - queue_work(ic->writer_wq, &ic->writer_work); + 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') { @@ -3132,6 +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' && diff --git a/drivers/md/dm-ioctl.c b/drivers/md/dm-ioctl.c index 6b3f867d0b70..3bfc1583c20a 100644 --- a/drivers/md/dm-ioctl.c +++ b/drivers/md/dm-ioctl.c @@ -655,7 +655,7 @@ static void list_version_get_needed(struct target_type *tt, void *needed_param) size_t *needed = needed_param; *needed += sizeof(struct dm_target_versions); - *needed += strlen(tt->name); + *needed += strlen(tt->name) + 1; *needed += ALIGN_MASK; } @@ -720,7 +720,7 @@ static int __list_versions(struct dm_ioctl *param, size_t param_size, const char iter_info.old_vers = NULL; iter_info.vers = vers; iter_info.flags = 0; - iter_info.end = (char *)vers+len; + iter_info.end = (char *)vers + needed; /* * Now loop through filling out the names & versions. |