From: Trond Myklebust <trond.myklebust@primarydata.com>
To: linux-nfs@vger.kernel.org
Subject: [PATCH v4 01/17] NFS: Don't flush caches for a getattr that races with writeback
Date: Thu, 23 Jun 2016 16:00:33 -0400 [thread overview]
Message-ID: <1466712049-5326-1-git-send-email-trond.myklebust@primarydata.com> (raw)
If there were outstanding writes then chalk up the unexpected change
attribute on the server to them.
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
---
fs/nfs/inode.c | 15 +++++++++------
1 file changed, 9 insertions(+), 6 deletions(-)
diff --git a/fs/nfs/inode.c b/fs/nfs/inode.c
index 52e7d6869e3b..60051e62d3f1 100644
--- a/fs/nfs/inode.c
+++ b/fs/nfs/inode.c
@@ -1729,12 +1729,15 @@ static int nfs_update_inode(struct inode *inode, struct nfs_fattr *fattr)
if (inode->i_version != fattr->change_attr) {
dprintk("NFS: change_attr change on server for file %s/%ld\n",
inode->i_sb->s_id, inode->i_ino);
- invalid |= NFS_INO_INVALID_ATTR
- | NFS_INO_INVALID_DATA
- | NFS_INO_INVALID_ACCESS
- | NFS_INO_INVALID_ACL;
- if (S_ISDIR(inode->i_mode))
- nfs_force_lookup_revalidate(inode);
+ /* Could it be a race with writeback? */
+ if (nfsi->nrequests == 0) {
+ invalid |= NFS_INO_INVALID_ATTR
+ | NFS_INO_INVALID_DATA
+ | NFS_INO_INVALID_ACCESS
+ | NFS_INO_INVALID_ACL;
+ if (S_ISDIR(inode->i_mode))
+ nfs_force_lookup_revalidate(inode);
+ }
inode->i_version = fattr->change_attr;
}
} else {
--
2.7.4
next reply other threads:[~2016-06-23 20:01 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-06-23 20:00 Trond Myklebust [this message]
2016-06-23 20:00 ` [PATCH v4 02/17] NFS: Cache access checks more aggressively Trond Myklebust
2016-06-23 20:00 ` [PATCH v4 03/17] NFS: Cache aggressively when file is open for writing Trond Myklebust
2016-06-23 20:00 ` [PATCH v4 04/17] NFS: Kill NFS_INO_NFS_INO_FLUSHING: it is a performance killer Trond Myklebust
2016-06-23 20:00 ` [PATCH v4 05/17] NFS: writepage of a single page should not be synchronous Trond Myklebust
2016-06-23 20:00 ` [PATCH v4 06/17] NFS: Don't hold the inode lock across fsync() Trond Myklebust
2016-06-23 20:00 ` [PATCH v4 07/17] NFS: Don't call COMMIT in ->releasepage() Trond Myklebust
2016-06-23 20:00 ` [PATCH v4 08/17] NFS: Fix O_DIRECT verifier problems Trond Myklebust
2016-06-23 20:00 ` [PATCH v4 09/17] NFS: Ensure we reset the write verifier 'committed' value on resend Trond Myklebust
2016-06-23 20:00 ` [PATCH v4 10/17] NFS: Remove racy size manipulations in O_DIRECT Trond Myklebust
2016-06-23 20:00 ` [PATCH v4 11/17] NFS Cleanup: move call to generic_write_checks() into fs/nfs/direct.c Trond Myklebust
2016-06-23 20:00 ` [PATCH v4 12/17] NFS: Move buffered I/O locking into nfs_file_write() Trond Myklebust
2016-06-23 20:00 ` [PATCH v4 13/17] NFS: Do not serialise O_DIRECT reads and writes Trond Myklebust
2016-06-23 20:00 ` [PATCH v4 14/17] NFS: Cleanup nfs_direct_complete() Trond Myklebust
2016-06-23 20:00 ` [PATCH v4 15/17] NFS: Remove redundant waits for O_DIRECT in fsync() and write_begin() Trond Myklebust
2016-06-23 20:00 ` [PATCH v4 16/17] NFS: Remove unused function nfs_revalidate_mapping_protected() Trond Myklebust
2016-06-23 20:00 ` [PATCH v4 17/17] NFS nfs_vm_page_mkwrite: Don't freeze me, Bro Trond Myklebust
2016-06-28 12:12 ` [PATCH v4 01/17] NFS: Don't flush caches for a getattr that races with writeback Christoph Hellwig
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=1466712049-5326-1-git-send-email-trond.myklebust@primarydata.com \
--to=trond.myklebust@primarydata.com \
--cc=linux-nfs@vger.kernel.org \
/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 a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).