From 2e52eb74463f15c745d64948cedfaee722d6268c Mon Sep 17 00:00:00 2001 From: Richard Weinberger Date: Thu, 12 Jul 2018 13:01:58 +0200 Subject: ubifs: Rework ubifs_assert() With having access to struct ubifs_info in ubifs_assert() we can give more information when an assert is failing. By using ubifs_err() we can tell which UBIFS instance failed. Also multiple actions can be taken now. We support: - report: This is what UBIFS did so far, just report the failure and go on. - read-only: Switch to read-only mode. - panic: shoot the kernel in the head. Signed-off-by: Richard Weinberger --- fs/ubifs/debug.c | 22 ++++++++++++++++++++++ 1 file changed, 22 insertions(+) (limited to 'fs/ubifs/debug.c') diff --git a/fs/ubifs/debug.c b/fs/ubifs/debug.c index 1a626484f8ae..564e330d05b1 100644 --- a/fs/ubifs/debug.c +++ b/fs/ubifs/debug.c @@ -3081,6 +3081,28 @@ void dbg_debugfs_exit(void) debugfs_remove_recursive(dfs_rootdir); } +void ubifs_assert_failed(struct ubifs_info *c, const char *expr, + const char *file, int line) +{ + ubifs_err(c, "UBIFS assert failed: %s, in %s:%u", expr, file, line); + + switch (c->assert_action) { + case ASSACT_PANIC: + BUG(); + break; + + case ASSACT_RO: + ubifs_ro_mode(c, -EINVAL); + break; + + case ASSACT_REPORT: + default: + dump_stack(); + break; + + } +} + /** * ubifs_debugging_init - initialize UBIFS debugging. * @c: UBIFS file-system description object -- cgit v1.2.3