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[XFS] Ensure bulkstat from an invalid inode number gets caught always with 

EINVAL.

SGI-PV: 953819
SGI-Modid: xfs-linux-melb:xfs-kern:26629a

Signed-off-by: Nathan Scott <nathans@sgi.com>
wifi-calibration
Nathan Scott 2006-07-28 17:05:51 +10:00
parent b2ea401bac
commit 41ff715abc
1 changed files with 10 additions and 7 deletions
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17
fs/xfs/xfs_inode.c
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@ -334,10 +334,9 @@ xfs_itobp(
#if !defined(__KERNEL__)
ni = 0;
#elif defined(DEBUG)
ni = (imap_flags & XFS_IMAP_BULKSTAT) ? 0 :
(BBTOB(imap.im_len) >> mp->m_sb.sb_inodelog);
ni = BBTOB(imap.im_len) >> mp->m_sb.sb_inodelog;
#else /* usual case */
ni = (imap_flags & XFS_IMAP_BULKSTAT) ? 0 : 1;
ni = 1;
#endif
for (i = 0; i < ni; i++) {
@ -348,11 +347,15 @@ xfs_itobp(
(i << mp->m_sb.sb_inodelog));
di_ok = INT_GET(dip->di_core.di_magic, ARCH_CONVERT) == XFS_DINODE_MAGIC &&
XFS_DINODE_GOOD_VERSION(INT_GET(dip->di_core.di_version, ARCH_CONVERT));
if (unlikely(XFS_TEST_ERROR(!di_ok, mp, XFS_ERRTAG_ITOBP_INOTOBP,
XFS_RANDOM_ITOBP_INOTOBP))) {
if (unlikely(XFS_TEST_ERROR(!di_ok, mp,
XFS_ERRTAG_ITOBP_INOTOBP,
XFS_RANDOM_ITOBP_INOTOBP))) {
if (imap_flags & XFS_IMAP_BULKSTAT) {
xfs_trans_brelse(tp, bp);
return XFS_ERROR(EINVAL);
}
#ifdef DEBUG
if (!(imap_flags & XFS_IMAP_BULKSTAT))
cmn_err(CE_ALERT,
cmn_err(CE_ALERT,
"Device %s - bad inode magic/vsn "
"daddr %lld #%d (magic=%x)",
XFS_BUFTARG_NAME(mp->m_ddev_targp),