From: Boaz Harrosh <bharrosh@panasas.com>
To: Trond Myklebust <Trond.Myklebust@netapp.com>,
Jim Rees <rees@umich.edu>, Peng Tao <bergwolf@gmail.com>,
NFS list <linux-nfs@vger.kernel.org>
Subject: [PATCH 6/6] pnfs-obj: Fix the comp_index != 0 case
Date: Fri, 29 Jul 2011 23:35:32 -0700 [thread overview]
Message-ID: <4E33A634.90308@panasas.com> (raw)
In-Reply-To: <4E33A288.80403@panasas.com>
There were bugs in the case of partial layout where olo_comp_index
is not zero. This used to work and was tested but one of the later
cleanup SQUASHMEs broke it and was not tested since.
Also add a dprint that specify those received layout parameters.
Every thing else was already printed.
[Needed in v3.0]
CC: Stable Tree <stable@kernel.org>
Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
---
fs/nfs/objlayout/objio_osd.c | 16 +++++++---------
fs/nfs/objlayout/pnfs_osd_xdr_cli.c | 3 +++
2 files changed, 10 insertions(+), 9 deletions(-)
diff --git a/fs/nfs/objlayout/objio_osd.c b/fs/nfs/objlayout/objio_osd.c
index 9aa9d67..1d1dc1e 100644
--- a/fs/nfs/objlayout/objio_osd.c
+++ b/fs/nfs/objlayout/objio_osd.c
@@ -479,7 +479,6 @@ static int _io_check(struct objio_state *ios, bool is_write)
for (i = 0; i < ios->numdevs; i++) {
struct osd_sense_info osi;
struct osd_request *or = ios->per_dev[i].or;
- unsigned dev;
int ret;
if (!or)
@@ -500,9 +499,8 @@ static int _io_check(struct objio_state *ios, bool is_write)
continue; /* we recovered */
}
- dev = ios->per_dev[i].dev;
- objlayout_io_set_result(&ios->ol_state, dev,
- &ios->layout->comps[dev].oc_object_id,
+ objlayout_io_set_result(&ios->ol_state, i,
+ &ios->layout->comps[i].oc_object_id,
osd_pri_2_pnfs_err(osi.osd_err_pri),
ios->per_dev[i].offset,
ios->per_dev[i].length,
@@ -648,7 +646,7 @@ static int _prepare_one_group(struct objio_state *ios, u64 length,
int ret = 0;
while (length) {
- struct _objio_per_comp *per_dev = &ios->per_dev[dev];
+ struct _objio_per_comp *per_dev = &ios->per_dev[dev - first_dev];
unsigned cur_len, page_off = 0;
if (!per_dev->length) {
@@ -668,8 +666,8 @@ static int _prepare_one_group(struct objio_state *ios, u64 length,
cur_len = stripe_unit;
}
- if (max_comp < dev)
- max_comp = dev;
+ if (max_comp < dev - first_dev)
+ max_comp = dev - first_dev;
} else {
cur_len = stripe_unit;
}
@@ -804,7 +802,7 @@ static int _read_mirrors(struct objio_state *ios, unsigned cur_comp)
struct _objio_per_comp *per_dev = &ios->per_dev[cur_comp];
unsigned dev = per_dev->dev;
struct pnfs_osd_object_cred *cred =
- &ios->layout->comps[dev];
+ &ios->layout->comps[cur_comp];
struct osd_obj_id obj = {
.partition = cred->oc_object_id.oid_partition_id,
.id = cred->oc_object_id.oid_object_id,
@@ -902,7 +900,7 @@ static int _write_mirrors(struct objio_state *ios, unsigned cur_comp)
for (; cur_comp < last_comp; ++cur_comp, ++dev) {
struct osd_request *or = NULL;
struct pnfs_osd_object_cred *cred =
- &ios->layout->comps[dev];
+ &ios->layout->comps[cur_comp];
struct osd_obj_id obj = {
.partition = cred->oc_object_id.oid_partition_id,
.id = cred->oc_object_id.oid_object_id,
diff --git a/fs/nfs/objlayout/pnfs_osd_xdr_cli.c b/fs/nfs/objlayout/pnfs_osd_xdr_cli.c
index 16fc758..b3918f7 100644
--- a/fs/nfs/objlayout/pnfs_osd_xdr_cli.c
+++ b/fs/nfs/objlayout/pnfs_osd_xdr_cli.c
@@ -170,6 +170,9 @@ int pnfs_osd_xdr_decode_layout_map(struct pnfs_osd_layout *layout,
p = _osd_xdr_decode_data_map(p, &layout->olo_map);
layout->olo_comps_index = be32_to_cpup(p++);
layout->olo_num_comps = be32_to_cpup(p++);
+ dprintk("%s: olo_comps_index=%d olo_num_comps=%d\n", __func__,
+ layout->olo_comps_index, layout->olo_num_comps);
+
iter->total_comps = layout->olo_num_comps;
return 0;
}
--
1.7.6
prev parent reply other threads:[~2011-07-30 6:35 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-07-30 6:19 [PATCHSET 0/6] Patches needed for Stable Boaz Harrosh
2011-07-30 6:29 ` [PATCH 1/6] pnfs: save layoutcommit lwb at layout header Boaz Harrosh
2011-07-30 6:30 ` [PATCH 2/6] pnfs: save layoutcommit cred at layout header init Boaz Harrosh
2011-07-30 6:32 ` [PATCH 3/6] pnfs: let layoutcommit handle a list of lseg Boaz Harrosh
2011-07-30 6:33 ` [PATCH 4/6] pnfs: use lwb as layoutcommit length Boaz Harrosh
2011-07-30 6:34 ` [PATCH 5/6] pnfs-obj: Bug when we are running out of bio Boaz Harrosh
2011-07-30 6:35 ` Boaz Harrosh [this message]
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=4E33A634.90308@panasas.com \
--to=bharrosh@panasas.com \
--cc=Trond.Myklebust@netapp.com \
--cc=bergwolf@gmail.com \
--cc=linux-nfs@vger.kernel.org \
--cc=rees@umich.edu \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.