diff options
| -rw-r--r-- | fs/ubifs/debug.c | 22 | ||||
| -rw-r--r-- | fs/ubifs/debug.h | 10 | ||||
| -rw-r--r-- | fs/ubifs/ubifs.h | 14 |
3 files changed, 42 insertions, 4 deletions
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 diff --git a/fs/ubifs/debug.h b/fs/ubifs/debug.h index 981a3fa081f3..64c6977c189b 100644 --- a/fs/ubifs/debug.h +++ b/fs/ubifs/debug.h @@ -148,18 +148,20 @@ struct ubifs_global_debug_info { unsigned int tst_rcvry:1; }; +void ubifs_assert_failed(struct ubifs_info *c, const char *expr, + const char *file, int line); + #define ubifs_assert(c, expr) do { \ if (unlikely(!(expr))) { \ - pr_crit("UBIFS assert failed in %s at %u (pid %d)\n", \ - __func__, __LINE__, current->pid); \ - dump_stack(); \ + ubifs_assert_failed((struct ubifs_info *)c, #expr, __FILE__, \ + __LINE__); \ } \ } while (0) #define ubifs_assert_cmt_locked(c) do { \ if (unlikely(down_write_trylock(&(c)->commit_sem))) { \ up_write(&(c)->commit_sem); \ - pr_crit("commit lock is not locked!\n"); \ + ubifs_err(c, "commit lock is not locked!\n"); \ ubifs_assert(c, 0); \ } \ } while (0) diff --git a/fs/ubifs/ubifs.h b/fs/ubifs/ubifs.h index d17e895ee87f..4368cde476b0 100644 --- a/fs/ubifs/ubifs.h +++ b/fs/ubifs/ubifs.h @@ -258,6 +258,18 @@ enum { LEB_RETAINED, }; +/* + * Action taken upon a failed ubifs_assert(). + * @ASSACT_REPORT: just report the failed assertion + * @ASSACT_RO: switch to read-only mode + * @ASSACT_PANIC: call BUG() and possible panic the kernel + */ +enum { + ASSACT_REPORT = 0, + ASSACT_RO, + ASSACT_PANIC, +}; + /** * struct ubifs_old_idx - index node obsoleted since last commit start. * @rb: rb-tree node @@ -1015,6 +1027,7 @@ struct ubifs_debug_info; * @bulk_read: enable bulk-reads * @default_compr: default compression algorithm (%UBIFS_COMPR_LZO, etc) * @rw_incompat: the media is not R/W compatible + * @assert_action: action to take when a ubifs_assert() fails * * @tnc_mutex: protects the Tree Node Cache (TNC), @zroot, @cnext, @enext, and * @calc_idx_sz @@ -1256,6 +1269,7 @@ struct ubifs_info { unsigned int bulk_read:1; unsigned int default_compr:2; unsigned int rw_incompat:1; + unsigned int assert_action:2; struct mutex tnc_mutex; struct ubifs_zbranch zroot; |