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xfs: refactor inode verifier corruption error printing 

Refactor inode verifier error reporting into a non-libxfs function so
that we aren't encoding the message format in libxfs.  This also
changes the kernel dmesg output to resemble buffer verifier errors
more closely.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Brian Foster <bfoster@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
This commit is contained in:
Darrick J. Wong 2018-01-22 18:09:48 -08:00
parent 67a3f6d014
commit 22431bf3df
4 changed files with 50 additions and 10 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
fs/xfs/libxfs/xfs_inode_buf.c
View File

@ -578,10 +578,8 @@ xfs_iread(
/* even unallocated inodes are verified */
fa = xfs_dinode_verify(mp, ip->i_ino, dip);
if (fa) {
xfs_alert(mp, "%s: validation failed for inode %lld at %pS",
__func__, ip->i_ino, fa);
XFS_CORRUPTION_ERROR(__func__, XFS_ERRLEVEL_LOW, mp, dip);
xfs_inode_verifier_error(ip, -EFSCORRUPTED, "dinode", dip,
sizeof(*dip), fa);
error = -EFSCORRUPTED;
goto out_brelse;
}

37
fs/xfs/xfs_error.c
View File

@ -24,6 +24,7 @@
#include "xfs_errortag.h"
#include "xfs_error.h"
#include "xfs_sysfs.h"
#include "xfs_inode.h"
#ifdef DEBUG
@ -372,3 +373,39 @@ xfs_verifier_error(
if (xfs_error_level >= XFS_ERRLEVEL_HIGH)
xfs_stack_trace();
}
/*
* Warnings for inode corruption problems. Don't bother with the stack
* trace unless the error level is turned up high.
*/
void
xfs_inode_verifier_error(
struct xfs_inode *ip,
int error,
const char *name,
void *buf,
size_t bufsz,
xfs_failaddr_t failaddr)
{
struct xfs_mount *mp = ip->i_mount;
xfs_failaddr_t fa;
int sz;
fa = failaddr ? failaddr : __return_address;
xfs_alert(mp, "Metadata %s detected at %pS, inode 0x%llx %s",
error == -EFSBADCRC ? "CRC error" : "corruption",
fa, ip->i_ino, name);
xfs_alert(mp, "Unmount and run xfs_repair");
if (buf && xfs_error_level >= XFS_ERRLEVEL_LOW) {
sz = min_t(size_t, XFS_CORRUPTION_DUMP_LEN, bufsz);
xfs_alert(mp, "First %d bytes of corrupted metadata buffer:",
sz);
xfs_hex_dump(buf, sz);
}
if (xfs_error_level >= XFS_ERRLEVEL_HIGH)
xfs_stack_trace();
}

3
fs/xfs/xfs_error.h
View File

@ -28,6 +28,9 @@ extern void xfs_corruption_error(const char *tag, int level,
int linenum, xfs_failaddr_t failaddr);
extern void xfs_verifier_error(struct xfs_buf *bp, int error,
xfs_failaddr_t failaddr);
extern void xfs_inode_verifier_error(struct xfs_inode *ip, int error,
const char *name, void *buf, size_t bufsz,
xfs_failaddr_t failaddr);
#define XFS_ERROR_REPORT(e, lvl, mp) \
xfs_error_report(e, lvl, mp, __FILE__, __LINE__, __return_address)

14
fs/xfs/xfs_inode.c
View File

@ -3486,21 +3486,23 @@ bool
xfs_inode_verify_forks(
struct xfs_inode *ip)
{
struct xfs_ifork *ifp;
xfs_failaddr_t fa;
fa = xfs_ifork_verify_data(ip, &xfs_default_ifork_ops);
if (fa) {
xfs_alert(ip->i_mount,
"%s: bad inode %llu inline data fork at %pS",
__func__, ip->i_ino, fa);
ifp = XFS_IFORK_PTR(ip, XFS_DATA_FORK);
xfs_inode_verifier_error(ip, -EFSCORRUPTED, "data fork",
ifp->if_u1.if_data, ifp->if_bytes, fa);
return false;
}
fa = xfs_ifork_verify_attr(ip, &xfs_default_ifork_ops);
if (fa) {
xfs_alert(ip->i_mount,
"%s: bad inode %llu inline attr fork at %pS",
__func__, ip->i_ino, fa);
ifp = XFS_IFORK_PTR(ip, XFS_ATTR_FORK);
xfs_inode_verifier_error(ip, -EFSCORRUPTED, "attr fork",
ifp ? ifp->if_u1.if_data : NULL,
ifp ? ifp->if_bytes : 0, fa);
return false;
}
return true;