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NFSv4.2: llseek(SEEK_HOLE) and llseek(SEEK_DATA) don't require data sync

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We want to ensure that we write the cached data to the server, but
don't require it be synced to disk. If the server reboots, we will
get a stateid error, which will cause us to retry anyway.

Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
This commit is contained in:
Trond Myklebust 2016-06-25 17:57:39 -04:00
parent 837bb1d752
commit e95fc4a069
1 changed files with 5 additions and 1 deletions
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6
fs/nfs/nfs42proc.c
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@ -269,7 +269,11 @@ static loff_t _nfs42_proc_llseek(struct file *filep,
if (status)
return status;
nfs_wb_all(inode);
status = nfs_filemap_write_and_wait_range(inode->i_mapping,
offset, LLONG_MAX);
if (status)
return status;
status = nfs4_call_sync(server->client, server, &msg,
&args.seq_args, &res.seq_res, 0);
if (status == -ENOTSUPP)