From: Darrick J. Wong <darrick.wong@xxxxxxxxxx>
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@xxxxxxxxxx>
---
fs/xfs/libxfs/xfs_dir2_node.c | 2 +-
fs/xfs/xfs_aops.c | 2 +-
fs/xfs/xfs_dquot_item.c | 2 +-
fs/xfs/xfs_fsops.c | 2 +-
fs/xfs/xfs_inode.c | 10 +++++-----
fs/xfs/xfs_linux.h | 6 ++++++
fs/xfs/xfs_log.c | 4 ++--
fs/xfs/xfs_log_recover.c | 24 ++++++++++++------------
fs/xfs/xfs_qm.c | 4 ++--
9 files changed, 31 insertions(+), 25 deletions(-)
diff --git a/fs/xfs/libxfs/xfs_dir2_node.c b/fs/xfs/libxfs/xfs_dir2_node.c
index e900dbc..bb893ae 100644
--- a/fs/xfs/libxfs/xfs_dir2_node.c
+++ b/fs/xfs/libxfs/xfs_dir2_node.c
@@ -1919,7 +1919,7 @@ xfs_dir2_node_addname_int(
(unsigned long long)ifbno, lastfbno);
if (fblk) {
xfs_alert(mp,
- " fblk %p blkno %llu index %d magic 0x%x",
+ " fblk "PTR_FMT" blkno %llu index %d magic 0x%x",
fblk,
(unsigned long long)fblk->blkno,
fblk->index,
diff --git a/fs/xfs/xfs_aops.c b/fs/xfs/xfs_aops.c
index 4fc526a..2e094c7 100644
--- a/fs/xfs/xfs_aops.c
+++ b/fs/xfs/xfs_aops.c
@@ -791,7 +791,7 @@ xfs_aops_discard_page(
goto out_invalidate;
xfs_alert(ip->i_mount,
- "page discard on page %p, inode 0x%llx, offset %llu.",
+ "page discard on page "PTR_FMT", inode 0x%llx, offset %llu.",
page, ip->i_ino, offset);
xfs_ilock(ip, XFS_ILOCK_EXCL);
diff --git a/fs/xfs/xfs_dquot_item.c b/fs/xfs/xfs_dquot_item.c
index 664dea1..e564f11 100644
--- a/fs/xfs/xfs_dquot_item.c
+++ b/fs/xfs/xfs_dquot_item.c
@@ -212,7 +212,7 @@ xfs_qm_dquot_logitem_push(
error = xfs_qm_dqflush(dqp, &bp);
if (error) {
- xfs_warn(dqp->q_mount, "%s: push error %d on dqp %p",
+ xfs_warn(dqp->q_mount, "%s: push error %d on dqp "PTR_FMT,
__func__, error, dqp);
} else {
if (!xfs_buf_delwri_queue(bp, buffer_list))
diff --git a/fs/xfs/xfs_fsops.c b/fs/xfs/xfs_fsops.c
index cc86b2b..8b45456 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);
}
/*
diff --git a/fs/xfs/xfs_inode.c b/fs/xfs/xfs_inode.c
index 29c47da..c9e40d4 100644
--- a/fs/xfs/xfs_inode.c
+++ b/fs/xfs/xfs_inode.c
@@ -3529,7 +3529,7 @@ xfs_iflush_int(
if (XFS_TEST_ERROR(dip->di_magic != cpu_to_be16(XFS_DINODE_MAGIC),
mp, XFS_ERRTAG_IFLUSH_1)) {
xfs_alert_tag(mp, XFS_PTAG_IFLUSH,
- "%s: Bad inode %Lu magic number 0x%x, ptr %p",
+ "%s: Bad inode %Lu magic number 0x%x, ptr "PTR_FMT,
__func__, ip->i_ino, be16_to_cpu(dip->di_magic), dip);
goto corrupt_out;
}
@@ -3539,7 +3539,7 @@ xfs_iflush_int(
(ip->i_d.di_format != XFS_DINODE_FMT_BTREE),
mp, XFS_ERRTAG_IFLUSH_3)) {
xfs_alert_tag(mp, XFS_PTAG_IFLUSH,
- "%s: Bad regular inode %Lu, ptr %p",
+ "%s: Bad regular inode %Lu, ptr "PTR_FMT,
__func__, ip->i_ino, ip);
goto corrupt_out;
}
@@ -3550,7 +3550,7 @@ xfs_iflush_int(
(ip->i_d.di_format != XFS_DINODE_FMT_LOCAL),
mp, XFS_ERRTAG_IFLUSH_4)) {
xfs_alert_tag(mp, XFS_PTAG_IFLUSH,
- "%s: Bad directory inode %Lu, ptr %p",
+ "%s: Bad directory inode %Lu, ptr "PTR_FMT,
__func__, ip->i_ino, ip);
goto corrupt_out;
}
@@ -3559,7 +3559,7 @@ xfs_iflush_int(
ip->i_d.di_nblocks, mp, XFS_ERRTAG_IFLUSH_5)) {
xfs_alert_tag(mp, XFS_PTAG_IFLUSH,
"%s: detected corrupt incore inode %Lu, "
- "total extents = %d, nblocks = %Ld, ptr %p",
+ "total extents = %d, nblocks = %Ld, ptr "PTR_FMT,
__func__, ip->i_ino,
ip->i_d.di_nextents + ip->i_d.di_anextents,
ip->i_d.di_nblocks, ip);
@@ -3568,7 +3568,7 @@ xfs_iflush_int(
if (XFS_TEST_ERROR(ip->i_d.di_forkoff > mp->m_sb.sb_inodesize,
mp, XFS_ERRTAG_IFLUSH_6)) {
xfs_alert_tag(mp, XFS_PTAG_IFLUSH,
- "%s: bad inode %Lu, forkoff 0x%x, ptr %p",
+ "%s: bad inode %Lu, forkoff 0x%x, ptr "PTR_FMT,
__func__, ip->i_ino, ip->i_d.di_forkoff, ip);
goto corrupt_out;
}
diff --git a/fs/xfs/xfs_linux.h b/fs/xfs/xfs_linux.h
index fd03780..0949bab 100644
--- a/fs/xfs/xfs_linux.h
+++ b/fs/xfs/xfs_linux.h
@@ -291,4 +291,10 @@ static inline uint64_t howmany_64(uint64_t x, uint32_t y)
#define XFS_IS_REALTIME_MOUNT(mp) (0)
#endif
+#ifdef DEBUG
+# define PTR_FMT "%px"
+#else
+# define PTR_FMT "%p"
+#endif
+
#endif /* __XFS_LINUX__ */
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);
diff --git a/fs/xfs/xfs_log_recover.c b/fs/xfs/xfs_log_recover.c
index 205bace..d864380 100644
--- a/fs/xfs/xfs_log_recover.c
+++ b/fs/xfs/xfs_log_recover.c
@@ -2218,7 +2218,7 @@ xlog_recover_do_inode_buffer(
next_unlinked_offset - reg_buf_offset;
if (unlikely(*logged_nextp == 0)) {
xfs_alert(mp,
- "Bad inode buffer log record (ptr = %p, bp = %p). "
+ "Bad inode buffer log record (ptr = "PTR_FMT", bp = "PTR_FMT"). "
"Trying to replay bad (0) inode di_next_unlinked field.",
item, bp);
XFS_ERROR_REPORT("xlog_recover_do_inode_buf",
@@ -3049,7 +3049,7 @@ xlog_recover_inode_pass2(
*/
if (unlikely(dip->di_magic != cpu_to_be16(XFS_DINODE_MAGIC))) {
xfs_alert(mp,
- "%s: Bad inode magic number, dip = %p, dino bp = %p, ino = %Ld",
+ "%s: Bad inode magic number, dip = "PTR_FMT", dino bp = "PTR_FMT", ino = %Ld",
__func__, dip, bp, in_f->ilf_ino);
XFS_ERROR_REPORT("xlog_recover_inode_pass2(1)",
XFS_ERRLEVEL_LOW, mp);
@@ -3059,7 +3059,7 @@ xlog_recover_inode_pass2(
ldip = item->ri_buf[1].i_addr;
if (unlikely(ldip->di_magic != XFS_DINODE_MAGIC)) {
xfs_alert(mp,
- "%s: Bad inode log record, rec ptr %p, ino %Ld",
+ "%s: Bad inode log record, rec ptr "PTR_FMT", ino %Ld",
__func__, item, in_f->ilf_ino);
XFS_ERROR_REPORT("xlog_recover_inode_pass2(2)",
XFS_ERRLEVEL_LOW, mp);
@@ -3117,8 +3117,8 @@ xlog_recover_inode_pass2(
XFS_CORRUPTION_ERROR("xlog_recover_inode_pass2(3)",
XFS_ERRLEVEL_LOW, mp, ldip);
xfs_alert(mp,
- "%s: Bad regular inode log record, rec ptr %p, "
- "ino ptr = %p, ino bp = %p, ino %Ld",
+ "%s: Bad regular inode log record, rec ptr "PTR_FMT", "
+ "ino ptr = "PTR_FMT", ino bp = "PTR_FMT", ino %Ld",
__func__, item, dip, bp, in_f->ilf_ino);
error = -EFSCORRUPTED;
goto out_release;
@@ -3130,8 +3130,8 @@ xlog_recover_inode_pass2(
XFS_CORRUPTION_ERROR("xlog_recover_inode_pass2(4)",
XFS_ERRLEVEL_LOW, mp, ldip);
xfs_alert(mp,
- "%s: Bad dir inode log record, rec ptr %p, "
- "ino ptr = %p, ino bp = %p, ino %Ld",
+ "%s: Bad dir inode log record, rec ptr "PTR_FMT", "
+ "ino ptr = "PTR_FMT", ino bp = "PTR_FMT", ino %Ld",
__func__, item, dip, bp, in_f->ilf_ino);
error = -EFSCORRUPTED;
goto out_release;
@@ -3141,8 +3141,8 @@ xlog_recover_inode_pass2(
XFS_CORRUPTION_ERROR("xlog_recover_inode_pass2(5)",
XFS_ERRLEVEL_LOW, mp, ldip);
xfs_alert(mp,
- "%s: Bad inode log record, rec ptr %p, dino ptr %p, "
- "dino bp %p, ino %Ld, total extents = %d, nblocks = %Ld",
+ "%s: Bad inode log record, rec ptr "PTR_FMT", dino ptr "PTR_FMT", "
+ "dino bp "PTR_FMT", ino %Ld, total extents = %d, nblocks = %Ld",
__func__, item, dip, bp, in_f->ilf_ino,
ldip->di_nextents + ldip->di_anextents,
ldip->di_nblocks);
@@ -3153,8 +3153,8 @@ xlog_recover_inode_pass2(
XFS_CORRUPTION_ERROR("xlog_recover_inode_pass2(6)",
XFS_ERRLEVEL_LOW, mp, ldip);
xfs_alert(mp,
- "%s: Bad inode log record, rec ptr %p, dino ptr %p, "
- "dino bp %p, ino %Ld, forkoff 0x%x", __func__,
+ "%s: Bad inode log record, rec ptr "PTR_FMT", dino ptr "PTR_FMT", "
+ "dino bp "PTR_FMT", ino %Ld, forkoff 0x%x", __func__,
item, dip, bp, in_f->ilf_ino, ldip->di_forkoff);
error = -EFSCORRUPTED;
goto out_release;
@@ -3164,7 +3164,7 @@ xlog_recover_inode_pass2(
XFS_CORRUPTION_ERROR("xlog_recover_inode_pass2(7)",
XFS_ERRLEVEL_LOW, mp, ldip);
xfs_alert(mp,
- "%s: Bad inode log record length %d, rec ptr %p",
+ "%s: Bad inode log record length %d, rec ptr "PTR_FMT,
__func__, item->ri_buf[1].i_len, item);
error = -EFSCORRUPTED;
goto out_release;
diff --git a/fs/xfs/xfs_qm.c b/fs/xfs/xfs_qm.c
index 6b9f44d..5b848f4 100644
--- a/fs/xfs/xfs_qm.c
+++ b/fs/xfs/xfs_qm.c
@@ -162,7 +162,7 @@ xfs_qm_dqpurge(
*/
error = xfs_qm_dqflush(dqp, &bp);
if (error) {
- xfs_warn(mp, "%s: dquot %p flush failed",
+ xfs_warn(mp, "%s: dquot "PTR_FMT" flush failed",
__func__, dqp);
} else {
error = xfs_bwrite(bp);
@@ -480,7 +480,7 @@ xfs_qm_dquot_isolate(
error = xfs_qm_dqflush(dqp, &bp);
if (error) {
- xfs_warn(dqp->q_mount, "%s: dquot %p flush failed",
+ xfs_warn(dqp->q_mount, "%s: dquot "PTR_FMT" flush failed",
__func__, dqp);
goto out_unlock_dirty;
}
--
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