* Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
* Use is subject to license terms.
*
- * Copyright (c) 2012, 2016, Intel Corporation.
+ * Copyright (c) 2012, 2017, Intel Corporation.
*/
/*
* This file is part of Lustre, http://www.lustre.org/
* the full llog record to write. This is
* the beginning of buffer to write, the length
* of buffer is stored in \a rec::lrh_len
- * \param[out] reccookie pointer to the cookie to return back if needed.
+ * \param[in,out] reccookie pointer to the cookie to return back if needed.
* It is used for further cancel of this llog
* record.
* \param[in] idx index of the llog record. If \a idx == -1 then
&lgi->lgi_off, th);
RETURN(rc);
- } else if (loghandle->lgh_cur_idx > 0) {
+ } else if (llh->llh_flags & LLOG_F_IS_FIXSIZE) {
+ lgi->lgi_off = llh->llh_hdr.lrh_len +
+ (idx - 1) * reclen;
+ } else if (reccookie != NULL && reccookie->lgc_index > 0) {
/**
- * The lgh_cur_offset can be used only if index is
+ * The lgc_offset can be used only if index is
* the same.
*/
- if (idx != loghandle->lgh_cur_idx) {
+ if (idx != reccookie->lgc_index) {
CERROR("%s: modify index mismatch %d %d\n",
o->do_lu.lo_dev->ld_obd->obd_name, idx,
- loghandle->lgh_cur_idx);
+ reccookie->lgc_index);
RETURN(-EFAULT);
}
- lgi->lgi_off = loghandle->lgh_cur_offset;
+ lgi->lgi_off = reccookie->lgc_offset;
CDEBUG(D_OTHER, "modify record "DFID": idx:%u, "
"len:%u offset %llu\n",
PFID(&loghandle->lgh_id.lgl_oi.oi_fid), idx,
rec->lrh_len, (long long)lgi->lgi_off);
- } else if (llh->llh_flags & LLOG_F_IS_FIXSIZE) {
- lgi->lgi_off = llh->llh_hdr.lrh_len +
- (idx - 1) * reclen;
} else {
/* This can be result of lgh_cur_idx is not set during
* llog processing or llh_size is not set to proper
*/
static void changelog_block_trim_ext(struct llog_rec_hdr *hdr,
struct llog_rec_hdr *last_hdr,
- enum changelog_rec_flags flags,
- enum changelog_rec_extra_flags extra_flags)
+ struct llog_handle *loghandle)
{
+ enum changelog_rec_flags flags = CLF_SUPPORTED;
+ enum changelog_rec_extra_flags extra_flags = CLFE_SUPPORTED;
+
+ if (!(loghandle->lgh_hdr->llh_flags & LLOG_F_EXT_X_XATTR))
+ extra_flags &= ~CLFE_XATTR;
+ if (!(loghandle->lgh_hdr->llh_flags & LLOG_F_EXT_X_OMODE))
+ extra_flags &= ~CLFE_OPEN;
+ if (!(loghandle->lgh_hdr->llh_flags & LLOG_F_EXT_X_NID))
+ extra_flags &= ~CLFE_NID;
+ if (!(loghandle->lgh_hdr->llh_flags & LLOG_F_EXT_X_UIDGID))
+ extra_flags &= ~CLFE_UIDGID;
+ if (!(loghandle->lgh_hdr->llh_flags & LLOG_F_EXT_EXTRA_FLAGS))
+ flags &= ~CLF_EXTRA_FLAGS;
+ if (!(loghandle->lgh_hdr->llh_flags & LLOG_F_EXT_JOBID))
+ flags &= ~CLF_JOBID;
+
+ if (flags == CLF_SUPPORTED && extra_flags == CLFE_SUPPORTED)
+ return;
+
if (hdr->lrh_type != CHANGELOG_REC)
return;
extra_flags;
}
+ if (unlikely(hdr->lrh_len == 0)) {
+ /* It is corruption case, we cannot know the next rec,
+ * jump to the last one directly to avoid dead loop. */
+ LCONSOLE(D_WARNING, "Hit invalid llog record: "
+ "idx %u, type %u, id %u\n",
+ hdr->lrh_index, hdr->lrh_type, hdr->lrh_id);
+ hdr = llog_rec_hdr_next(last_hdr);
+ if (unlikely(hdr == last_hdr))
+ LCONSOLE(D_WARNING, "The last record crashed: "
+ "idx %u, type %u, id %u\n",
+ hdr->lrh_index, hdr->lrh_type,
+ hdr->lrh_id);
+ break;
+ }
+
changelog_remap_rec(rec, rec->cr_flags & flags, xflag);
hdr = llog_rec_hdr_next(hdr);
+ /* Yield CPU to avoid soft-lockup if there are too many records
+ * to be handled. */
+ cond_resched();
} while ((char *)hdr <= (char *)last_hdr);
}
int last_idx = *cur_idx;
__u64 last_offset = *cur_offset;
bool force_mini_rec = false;
- enum changelog_rec_flags flags;
- enum changelog_rec_extra_flags xflags;
ENTRY;
}
/* Trim unsupported extensions for compat w/ older clients */
- flags = CLF_SUPPORTED;
- xflags = CLFE_SUPPORTED;
- if (!(loghandle->lgh_hdr->llh_flags & LLOG_F_EXT_X_UIDGID))
- xflags &= ~CLFE_UIDGID;
- if (!(loghandle->lgh_hdr->llh_flags & LLOG_F_EXT_EXTRA_FLAGS))
- flags &= ~CLF_EXTRA_FLAGS;
- if (!(loghandle->lgh_hdr->llh_flags & LLOG_F_EXT_JOBID))
- flags &= ~CLF_JOBID;
- if (flags != CLF_SUPPORTED || xflags != CLFE_SUPPORTED)
- changelog_block_trim_ext(rec, last_rec, flags, xflags);
+ changelog_block_trim_ext(rec, last_rec, loghandle);
GOTO(out, rc = 0);
struct dt_device *dt;
loff_t cur_offset;
__u32 chunk_size;
- enum changelog_rec_flags flags;
- enum changelog_rec_extra_flags xflags;
int rc;
ENTRY;
}
/* Trim unsupported extensions for compat w/ older clients */
- flags = CLF_SUPPORTED;
- xflags = CLFE_SUPPORTED;
- if (!(loghandle->lgh_hdr->llh_flags & LLOG_F_EXT_X_UIDGID))
- xflags &= ~CLFE_UIDGID;
- if (!(loghandle->lgh_hdr->llh_flags & LLOG_F_EXT_EXTRA_FLAGS))
- flags &= ~CLF_EXTRA_FLAGS;
- if (!(loghandle->lgh_hdr->llh_flags & LLOG_F_EXT_JOBID))
- flags &= ~CLF_JOBID;
- if (flags != CLF_SUPPORTED || xflags != CLFE_SUPPORTED)
- changelog_block_trim_ext(rec, last_rec, flags, xflags);
+ changelog_block_trim_ext(rec, last_rec, loghandle);
GOTO(out, rc = 0);
}
git://git.whamcloud.com / fs / lustre-release.git / blobdiff