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| author | Darrick J. Wong <darrick.wong@oracle.com> | 2018-01-09 12:02:55 -0800 |
|---|---|---|
| committer | Darrick J. Wong <darrick.wong@oracle.com> | 2018-01-12 14:09:08 -0800 |
| commit | c96900435fa9fdfd9702a60cd765bd85e380303e (patch) | |
| tree | bbda292a21a12d0e37644506400a65b5acdb5c81 /fs/xfs/xfs_log.c | |
| parent | aff68a5502d24be416e256478448e228f1a88aaf (diff) | |
| download | linux-c96900435fa9fdfd9702a60cd765bd85e380303e.tar.gz linux-c96900435fa9fdfd9702a60cd765bd85e380303e.tar.bz2 linux-c96900435fa9fdfd9702a60cd765bd85e380303e.zip | |
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>
Diffstat (limited to 'fs/xfs/xfs_log.c')
| -rw-r--r-- | fs/xfs/xfs_log.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/fs/xfs/xfs_log.c b/fs/xfs/xfs_log.c index 922e5a9764ca..c1f266c34af7 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); |