diff options
| 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_fsops.c | |
| parent | xfs: use %pS printk format for direct instruction addresses (diff) | |
| download | linux-dev-c96900435fa9fdfd9702a60cd765bd85e380303e.tar.xz linux-dev-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_fsops.c')
| -rw-r--r-- | fs/xfs/xfs_fsops.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/xfs/xfs_fsops.c b/fs/xfs/xfs_fsops.c index cc86b2b34243..8b4545623e25 100644 --- a/fs/xfs/xfs_fsops.c +++ b/fs/xfs/xfs_fsops.c @@ -878,7 +878,7 @@ xfs_do_force_shutdown( if (!(flags & SHUTDOWN_FORCE_UMOUNT)) { xfs_notice(mp, - "%s(0x%x) called from line %d of file %s. Return address = %p", + "%s(0x%x) called from line %d of file %s. Return address = "PTR_FMT, __func__, flags, lnnum, fname, __return_address); } /* |