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Merge branch 'xfs-misc-fixes-for-4.3' into for-next

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This commit is contained in:
Dave Chinner
2015-07-29 11:54:07 +10:00
parent df150ed102 1cfc4a9cf8
commit 20b8394436
13 changed files with 98 additions and 74 deletions
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36
fs/xfs/xfs_log_recover.c
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@@ -3385,14 +3385,24 @@ xlog_recover_add_to_cont_trans(
char *ptr, *old_ptr;
int old_len;
/*
* If the transaction is empty, the header was split across this and the
* previous record. Copy the rest of the header.
*/
if (list_empty(&trans->r_itemq)) {
/* finish copying rest of trans header */
ASSERT(len < sizeof(struct xfs_trans_header));
if (len > sizeof(struct xfs_trans_header)) {
xfs_warn(log->l_mp, "%s: bad header length", __func__);
return -EIO;
}
xlog_recover_add_item(&trans->r_itemq);
ptr = (char *)&trans->r_theader +
sizeof(xfs_trans_header_t) - len;
sizeof(struct xfs_trans_header) - len;
memcpy(ptr, dp, len);
return 0;
}
/* take the tail entry */
item = list_entry(trans->r_itemq.prev, xlog_recover_item_t, ri_list);
@@ -3441,7 +3451,19 @@ xlog_recover_add_to_trans(
ASSERT(0);
return -EIO;
}
if (len == sizeof(xfs_trans_header_t))
if (len > sizeof(struct xfs_trans_header)) {
xfs_warn(log->l_mp, "%s: bad header length", __func__);
ASSERT(0);
return -EIO;
}
/*
* The transaction header can be arbitrarily split across op
* records. If we don't have the whole thing here, copy what we
* do have and handle the rest in the next record.
*/
if (len == sizeof(struct xfs_trans_header))
xlog_recover_add_item(&trans->r_itemq);
memcpy(&trans->r_theader, dp, len);
return 0;
@@ -4532,11 +4554,13 @@ xlog_recover(
xfs_sb_has_incompat_log_feature(&log->l_mp->m_sb,
XFS_SB_FEAT_INCOMPAT_LOG_UNKNOWN)) {
xfs_warn(log->l_mp,
"Superblock has unknown incompatible log features (0x%x) enabled.\n"
"The log can not be fully and/or safely recovered by this kernel.\n"
"Please recover the log on a kernel that supports the unknown features.",
"Superblock has unknown incompatible log features (0x%x) enabled.",
(log->l_mp->m_sb.sb_features_log_incompat &
XFS_SB_FEAT_INCOMPAT_LOG_UNKNOWN));
xfs_warn(log->l_mp,
"The log can not be fully and/or safely recovered by this kernel.");
xfs_warn(log->l_mp,
"Please recover the log on a kernel that supports the unknown features.");
return -EINVAL;
}