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pNFS: Fix atime updates on pNFS clients 

Fix the code so that we always mark the atime as invalid in nfs4_read_done().
Currently, the expectation appears to be that the pNFS drivers should always
do this, with the result that most of them don't.

Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
This commit is contained in:
Trond Myklebust 2016-09-15 18:26:05 -04:00 committed by Anna Schumaker
parent 77b00bc037
commit bfc505ded0
3 changed files with 3 additions and 10 deletions
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1
fs/nfs/internal.h
View File

@ -560,7 +560,6 @@ void nfs_init_cinfo_from_dreq(struct nfs_commit_info *cinfo,
extern ssize_t nfs_dreq_bytes_left(struct nfs_direct_req *dreq);
/* nfs4proc.c */
extern void __nfs4_read_done_cb(struct nfs_pgio_header *);
extern struct nfs_client *nfs4_init_client(struct nfs_client *clp,
const struct nfs_client_initdata *);
extern int nfs40_walk_client_list(struct nfs_client *clp,

8
fs/nfs/nfs4proc.c
View File

@ -4557,11 +4557,6 @@ static bool nfs4_error_stateid_expired(int err)
return false;
}
void __nfs4_read_done_cb(struct nfs_pgio_header *hdr)
{
nfs_invalidate_atime(hdr->inode);
}
static int nfs4_read_done_cb(struct rpc_task *task, struct nfs_pgio_header *hdr)
{
struct nfs_server *server = NFS_SERVER(hdr->inode);
@ -4581,7 +4576,6 @@ static int nfs4_read_done_cb(struct rpc_task *task, struct nfs_pgio_header *hdr)
}
}
__nfs4_read_done_cb(hdr);
if (task->tk_status > 0)
renew_lease(server, hdr->timestamp);
return 0;
@ -4610,6 +4604,8 @@ static int nfs4_read_done(struct rpc_task *task, struct nfs_pgio_header *hdr)
return -EAGAIN;
if (nfs4_read_stateid_changed(task, &hdr->args))
return -EAGAIN;
if (task->tk_status > 0)
nfs_invalidate_atime(hdr->inode);
return hdr->pgio_done_cb ? hdr->pgio_done_cb(task, hdr) :
nfs4_read_done_cb(task, hdr);
}

4
fs/nfs/pnfs.c
View File

@ -2230,10 +2230,8 @@ static void pnfs_ld_handle_read_error(struct nfs_pgio_header *hdr)
*/
void pnfs_ld_read_done(struct nfs_pgio_header *hdr)
{
if (likely(!hdr->pnfs_error)) {
__nfs4_read_done_cb(hdr);
if (likely(!hdr->pnfs_error))
hdr->mds_ops->rpc_call_done(&hdr->task, hdr);
}
trace_nfs4_pnfs_read(hdr, hdr->pnfs_error);
if (unlikely(hdr->pnfs_error))
pnfs_ld_handle_read_error(hdr);