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| author |   Trond Myklebust <trond.myklebust@primarydata.com> | 2015-02-26 19:34:32 -0500 |
|---|---|---|
| committer | Trond Myklebust <trond.myklebust@primarydata.com> | 2015-03-01 23:23:06 -0500 |
| commit | f5062003465c20cfe584d9129a463322ad5cf4ea (patch) | |
| tree | 67c20f919855153b04eeaf76bf7056e19879fd98 /fs | |
| parent | NFS: Add attribute update barriers to nfs_setattr_update_inode() (diff) | |
| download | linux-dev-f5062003465c20cfe584d9129a463322ad5cf4ea.tar.xz linux-dev-f5062003465c20cfe584d9129a463322ad5cf4ea.zip | |
NFS: Set an attribute barrier on all updates
Ensure that we update the attribute barrier even if there were no
invalidations, provided that this value is newer than the old one.
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
Tested-by: Chuck Lever <chuck.lever@oracle.com>
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/nfs/inode.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/fs/nfs/inode.c b/fs/nfs/inode.c index 3a2d127de499..299bf7171a4d 100644 --- a/fs/nfs/inode.c +++ b/fs/nfs/inode.c @@ -1738,6 +1738,7 @@ static int nfs_update_inode(struct inode *inode, struct nfs_fattr *fattr) nfs_inc_stats(inode, NFSIOS_ATTRINVALIDATE); nfsi->attrtimeo = NFS_MINATTRTIMEO(inode); nfsi->attrtimeo_timestamp = now; + /* Set barrier to be more recent than all outstanding updates */ nfsi->attr_gencount = nfs_inc_attr_generation_counter(); } else { if (!time_in_range_open(now, nfsi->attrtimeo_timestamp, nfsi->attrtimeo_timestamp + nfsi->attrtimeo)) { @@ -1745,6 +1746,9 @@ static int nfs_update_inode(struct inode *inode, struct nfs_fattr *fattr) nfsi->attrtimeo = NFS_MAXATTRTIMEO(inode); nfsi->attrtimeo_timestamp = now; } + /* Set the barrier to be more recent than this fattr */ + if ((long)fattr->gencount - (long)nfsi->attr_gencount > 0) + nfsi->attr_gencount = fattr->gencount; } invalid &= ~NFS_INO_INVALID_ATTR; /* Don't invalidate the data if we were to blame */ |