UBIFS: fix complaints about too small debug buffer size
When debugging is enabled, we use a temporary on-stack buffer for formatting
the key strings like "(11368871, direntry, 0xcd0750)". The buffer size is
32 bytes and sometimes it is not enough to fit the key string - e.g., when
inode numbers are high. This is not fatal, but the key strings are incomplete
and UBIFS complains like this:
UBIFS assert failed in dbg_snprintf_key at 137 (pid 1)
This is a regression caused by "515315a UBIFS: fix key printing".
Fix the issue by increasing the buffer to 48 bytes.
Reported-by: Michael Hench <michaelhench@gmail.com>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Tested-by: Michael Hench <michaelhench@gmail.com>
Cc: stable@vger.kernel.org [v3.3+]
diff --git a/fs/ubifs/debug.h b/fs/ubifs/debug.h
index 8b8cc4e..760de72 100644
--- a/fs/ubifs/debug.h
+++ b/fs/ubifs/debug.h
@@ -167,7 +167,7 @@
#define ubifs_dbg_msg(type, fmt, ...) \
pr_debug("UBIFS DBG " type ": " fmt "\n", ##__VA_ARGS__)
-#define DBG_KEY_BUF_LEN 32
+#define DBG_KEY_BUF_LEN 48
#define ubifs_dbg_msg_key(type, key, fmt, ...) do { \
char __tmp_key_buf[DBG_KEY_BUF_LEN]; \
pr_debug("UBIFS DBG " type ": " fmt "%s\n", ##__VA_ARGS__, \
