diff options
| -rw-r--r-- | fs/ubifs/debug.c | 11 | ||||
| -rw-r--r-- | fs/ubifs/debug.h | 5 | ||||
| -rw-r--r-- | fs/ubifs/dir.c | 2 | ||||
| -rw-r--r-- | fs/ubifs/orphan.c | 4 | ||||
| -rw-r--r-- | fs/ubifs/replay.c | 20 |
5 files changed, 25 insertions, 17 deletions
diff --git a/fs/ubifs/debug.c b/fs/ubifs/debug.c index 92df3b081539..bb3167257aab 100644 --- a/fs/ubifs/debug.c +++ b/fs/ubifs/debug.c @@ -2802,6 +2802,8 @@ static ssize_t dfs_file_read(struct file *file, char __user *u, size_t count, val = d->chk_fs; else if (dent == d->dfs_tst_rcvry) val = d->tst_rcvry; + else if (dent == d->dfs_ro_error) + val = c->ro_error; else return -EINVAL; @@ -2885,6 +2887,8 @@ static ssize_t dfs_file_write(struct file *file, const char __user *u, d->chk_fs = val; else if (dent == d->dfs_tst_rcvry) d->tst_rcvry = val; + else if (dent == d->dfs_ro_error) + c->ro_error = !!val; else return -EINVAL; @@ -2996,6 +3000,13 @@ int dbg_debugfs_init_fs(struct ubifs_info *c) goto out_remove; d->dfs_tst_rcvry = dent; + fname = "ro_error"; + dent = debugfs_create_file(fname, S_IRUSR | S_IWUSR, d->dfs_dir, c, + &dfs_fops); + if (IS_ERR_OR_NULL(dent)) + goto out_remove; + d->dfs_ro_error = dent; + return 0; out_remove: diff --git a/fs/ubifs/debug.h b/fs/ubifs/debug.h index 486a8e024fb6..8b8cc4e945f4 100644 --- a/fs/ubifs/debug.h +++ b/fs/ubifs/debug.h @@ -79,6 +79,10 @@ typedef int (*dbg_znode_callback)(struct ubifs_info *c, * @dfs_chk_lprops: debugfs knob to enable UBIFS LEP properties extra checks * @dfs_chk_fs: debugfs knob to enable UBIFS contents extra checks * @dfs_tst_rcvry: debugfs knob to enable UBIFS recovery testing + * @dfs_ro_error: debugfs knob to switch UBIFS to R/O mode (different to + * re-mounting to R/O mode because it does not flush any buffers + * and UBIFS just starts returning -EROFS on all write + * operations) */ struct ubifs_debug_info { struct ubifs_zbranch old_zroot; @@ -122,6 +126,7 @@ struct ubifs_debug_info { struct dentry *dfs_chk_lprops; struct dentry *dfs_chk_fs; struct dentry *dfs_tst_rcvry; + struct dentry *dfs_ro_error; }; /** diff --git a/fs/ubifs/dir.c b/fs/ubifs/dir.c index b1cca89aeb68..c95681cf1b71 100644 --- a/fs/ubifs/dir.c +++ b/fs/ubifs/dir.c @@ -969,7 +969,7 @@ static int ubifs_rename(struct inode *old_dir, struct dentry *old_dentry, struct ubifs_budget_req ino_req = { .dirtied_ino = 1, .dirtied_ino_d = ALIGN(old_inode_ui->data_len, 8) }; struct timespec time; - unsigned int saved_nlink; + unsigned int uninitialized_var(saved_nlink); /* * Budget request settings: deletion direntry, new direntry, removing diff --git a/fs/ubifs/orphan.c b/fs/ubifs/orphan.c index b02734db187c..cebf17ea0458 100644 --- a/fs/ubifs/orphan.c +++ b/fs/ubifs/orphan.c @@ -176,7 +176,7 @@ int ubifs_orphan_start_commit(struct ubifs_info *c) *last = orphan; last = &orphan->cnext; } - *last = orphan->cnext; + *last = NULL; c->cmt_orphans = c->new_orphans; c->new_orphans = 0; dbg_cmt("%d orphans to commit", c->cmt_orphans); @@ -382,7 +382,7 @@ static int consolidate(struct ubifs_info *c) last = &orphan->cnext; cnt += 1; } - *last = orphan->cnext; + *last = NULL; ubifs_assert(cnt == c->tot_orphans - c->new_orphans); c->cmt_orphans = cnt; c->ohead_lnum = c->orph_first; diff --git a/fs/ubifs/replay.c b/fs/ubifs/replay.c index 3a2da7e476e5..eba46d4a7619 100644 --- a/fs/ubifs/replay.c +++ b/fs/ubifs/replay.c @@ -1007,7 +1007,7 @@ out: */ int ubifs_replay_journal(struct ubifs_info *c) { - int err, i, lnum, offs, free; + int err, lnum, free; BUILD_BUG_ON(UBIFS_TRUN_KEY > 5); @@ -1025,25 +1025,17 @@ int ubifs_replay_journal(struct ubifs_info *c) dbg_mnt("start replaying the journal"); c->replaying = 1; lnum = c->ltail_lnum = c->lhead_lnum; - offs = c->lhead_offs; - for (i = 0; i < c->log_lebs; i++, lnum++) { - if (lnum >= UBIFS_LOG_LNUM + c->log_lebs) { - /* - * The log is logically circular, we reached the last - * LEB, switch to the first one. - */ - lnum = UBIFS_LOG_LNUM; - offs = 0; - } - err = replay_log_leb(c, lnum, offs, c->sbuf); + lnum = UBIFS_LOG_LNUM; + do { + err = replay_log_leb(c, lnum, 0, c->sbuf); if (err == 1) /* We hit the end of the log */ break; if (err) goto out; - offs = 0; - } + lnum = ubifs_next_log_lnum(c, lnum); + } while (lnum != UBIFS_LOG_LNUM); err = replay_buds(c); if (err) |