From: trondmy@kernel.org
To: linux-nfs@vger.kernel.org
Subject: [PATCH 18/22] NFS/pNFS: Fix pnfs_layout_mark_request_commit() invalid layout segment handling
Date: Tue, 24 Mar 2020 19:47:24 -0400 [thread overview]
Message-ID: <20200324234728.8997-19-trondmy@kernel.org> (raw)
In-Reply-To: <20200324234728.8997-18-trondmy@kernel.org>
From: Trond Myklebust <trond.myklebust@hammerspace.com>
Fix up pnfs_layout_mark_request_commit() to alway reschedule the write
if the layout segment is invalid. Also minor cleanup.
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
---
fs/nfs/pnfs_nfs.c | 28 ++++++++++++----------------
1 file changed, 12 insertions(+), 16 deletions(-)
diff --git a/fs/nfs/pnfs_nfs.c b/fs/nfs/pnfs_nfs.c
index abf16fc98346..25f135572fc8 100644
--- a/fs/nfs/pnfs_nfs.c
+++ b/fs/nfs/pnfs_nfs.c
@@ -1166,26 +1166,22 @@ pnfs_layout_mark_request_commit(struct nfs_page *req,
{
struct list_head *list;
struct pnfs_commit_array *array;
- struct pnfs_commit_bucket *buckets;
+ struct pnfs_commit_bucket *bucket;
mutex_lock(&NFS_I(cinfo->inode)->commit_mutex);
array = pnfs_lookup_commit_array(cinfo->ds, lseg);
- if (!array)
+ if (!array || !pnfs_is_valid_lseg(lseg))
goto out_resched;
- buckets = array->buckets;
- list = &buckets[ds_commit_idx].written;
- if (list_empty(list)) {
- if (!pnfs_is_valid_lseg(lseg))
- goto out_resched;
- /* Non-empty buckets hold a reference on the lseg. That ref
- * is normally transferred to the COMMIT call and released
- * there. It could also be released if the last req is pulled
- * off due to a rewrite, in which case it will be done in
- * pnfs_common_clear_request_commit
- */
- if (!buckets[ds_commit_idx].lseg)
- buckets[ds_commit_idx].lseg = pnfs_get_lseg(lseg);
- }
+ bucket = &array->buckets[ds_commit_idx];
+ list = &bucket->written;
+ /* Non-empty buckets hold a reference on the lseg. That ref
+ * is normally transferred to the COMMIT call and released
+ * there. It could also be released if the last req is pulled
+ * off due to a rewrite, in which case it will be done in
+ * pnfs_common_clear_request_commit
+ */
+ if (!bucket->lseg)
+ bucket->lseg = pnfs_get_lseg(lseg);
set_bit(PG_COMMIT_TO_DS, &req->wb_flags);
cinfo->ds->nwritten++;
--
2.25.1
next prev parent reply other threads:[~2020-03-24 23:49 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-03-24 23:47 [PATCH 00/22] Fix NFS commit to DS trondmy
2020-03-24 23:47 ` [PATCH 01/22] pNFS/flexfiles: Simplify allocation of the mirror array trondmy
2020-03-24 23:47 ` [PATCH 02/22] NFS/pNFS: Refactor pnfs_generic_commit_pagelist() trondmy
2020-03-24 23:47 ` [PATCH 03/22] pNFS: Add a helper to allocate the array of buckets trondmy
2020-03-24 23:47 ` [PATCH 04/22] NFSv4/pnfs: Support a list of commit arrays in struct pnfs_ds_commit_info trondmy
2020-03-24 23:47 ` [PATCH 05/22] NFSv4/pNFS: Scan the full list of commit arrays when committing trondmy
2020-03-24 23:47 ` [PATCH 06/22] pNFS: Support per-layout segment commits in pnfs_generic_recover_commit_reqs() trondmy
2020-03-24 23:47 ` [PATCH 07/22] pNFS: Support per-layout segment commits in pnfs_generic_commit_pagelist() trondmy
2020-03-24 23:47 ` [PATCH 08/22] NFS/pNFS: Allow O_DIRECT to release the DS commitinfo trondmy
2020-03-24 23:47 ` [PATCH 09/22] NFS: commit errors should be fatal trondmy
2020-03-24 23:47 ` [PATCH 10/22] NFS: Fix O_DIRECT commit verifier handling trondmy
2020-03-24 23:47 ` [PATCH 11/22] NFS/pNFS: Support commit arrays in nfs_clear_pnfs_ds_commit_verifiers() trondmy
2020-03-24 23:47 ` [PATCH 12/22] pNFS: Add infrastructure for cleaning up per-layout commit structures trondmy
2020-03-24 23:47 ` [PATCH 13/22] pNFS: Enable per-layout segment " trondmy
2020-03-24 23:47 ` [PATCH 14/22] NFS/pNFS: Add a helper pnfs_generic_search_commit_reqs() trondmy
2020-03-24 23:47 ` [PATCH 15/22] NFS: Remove bucket array from struct pnfs_ds_commit_info trondmy
2020-03-24 23:47 ` [PATCH 16/22] NFS/pNFS: Clean up pNFS commit operations trondmy
2020-03-24 23:47 ` [PATCH 17/22] NFS/pNFS: Simplify bucket layout segment reference counting trondmy
2020-03-24 23:47 ` trondmy [this message]
2020-03-24 23:47 ` [PATCH 19/22] pNFS/flexfile: Don't merge layout segments if the mirrors don't match trondmy
2020-03-24 23:47 ` [PATCH 20/22] pNFS/flexfiles: Check the layout segment range before doing I/O trondmy
2020-03-24 23:47 ` [PATCH 21/22] pNFS/flexfiles: remove requirement for whole file layouts trondmy
2020-03-24 23:47 ` [PATCH 22/22] pNFS/flexfiles: Specify the layout segment range in LAYOUTGET trondmy
2020-03-27 6:39 ` [PATCH 16/22] NFS/pNFS: Clean up pNFS commit operations kbuild test robot
2020-03-27 4:20 ` [PATCH 04/22] NFSv4/pnfs: Support a list of commit arrays in struct pnfs_ds_commit_info kbuild test robot
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