diff options
Diffstat (limited to 'fs/ubifs/debug.c')
| -rw-r--r-- | fs/ubifs/debug.c | 23 |
1 files changed, 21 insertions, 2 deletions
diff --git a/fs/ubifs/debug.c b/fs/ubifs/debug.c index 685a83756b2b..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; @@ -2918,6 +2922,9 @@ int dbg_debugfs_init_fs(struct ubifs_info *c) struct dentry *dent; struct ubifs_debug_info *d = c->dbg; + if (!IS_ENABLED(CONFIG_DEBUG_FS)) + return 0; + n = snprintf(d->dfs_dir_name, UBIFS_DFS_DIR_LEN + 1, UBIFS_DFS_DIR_NAME, c->vi.ubi_num, c->vi.vol_id); if (n == UBIFS_DFS_DIR_LEN) { @@ -2993,6 +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: @@ -3010,7 +3024,8 @@ out: */ void dbg_debugfs_exit_fs(struct ubifs_info *c) { - debugfs_remove_recursive(c->dbg->dfs_dir); + if (IS_ENABLED(CONFIG_DEBUG_FS)) + debugfs_remove_recursive(c->dbg->dfs_dir); } struct ubifs_global_debug_info ubifs_dbg; @@ -3095,6 +3110,9 @@ int dbg_debugfs_init(void) const char *fname; struct dentry *dent; + if (!IS_ENABLED(CONFIG_DEBUG_FS)) + return 0; + fname = "ubifs"; dent = debugfs_create_dir(fname, NULL); if (IS_ERR_OR_NULL(dent)) @@ -3159,7 +3177,8 @@ out: */ void dbg_debugfs_exit(void) { - debugfs_remove_recursive(dfs_rootdir); + if (IS_ENABLED(CONFIG_DEBUG_FS)) + debugfs_remove_recursive(dfs_rootdir); } /** |