xfs: use %px for data pointers when debugging
Starting with commit 57e734423ad ("vsprintf: refactor %pK code out of
pointer"), the behavior of the raw '%p' printk format specifier was
changed to print a 32-bit hash of the pointer value to avoid leaking
kernel pointers into dmesg. For most situations that's good.
This is /undesirable/ behavior when we're trying to debug XFS, however,
so define a PTR_FMT that prints the actual pointer when we're in debug
mode.
Note that %p for tracepoints still prints the raw pointer, so in the
long run we could consider rewriting some of these messages as
tracepoints.
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
diff --git a/fs/xfs/xfs_log.c b/fs/xfs/xfs_log.c
index 922e5a9..c1f266c 100644
--- a/fs/xfs/xfs_log.c
+++ b/fs/xfs/xfs_log.c
@@ -2244,7 +2244,7 @@ xlog_write_setup_ophdr(
break;
default:
xfs_warn(log->l_mp,
- "Bad XFS transaction clientid 0x%x in ticket %p",
+ "Bad XFS transaction clientid 0x%x in ticket "PTR_FMT,
ophdr->oh_clientid, ticket);
return NULL;
}
@@ -3926,7 +3926,7 @@ xlog_verify_iclog(
}
if (clientid != XFS_TRANSACTION && clientid != XFS_LOG)
xfs_warn(log->l_mp,
- "%s: invalid clientid %d op %p offset 0x%lx",
+ "%s: invalid clientid %d op "PTR_FMT" offset 0x%lx",
__func__, clientid, ophead,
(unsigned long)field_offset);