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nfsd: Add DEALLOCATE support 

DEALLOCATE only returns a status value, meaning we can use the noop()
xdr encoder to reply to the client.

Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
This commit is contained in:
Anna Schumaker 2014-11-07 14:44:27 -05:00 committed by J. Bruce Fields
parent 95d871f03c
commit b0cb908523
3 changed files with 17 additions and 1 deletions
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15
fs/nfsd/nfs4proc.c
View File

@ -33,6 +33,7 @@
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <linux/file.h>
#include <linux/falloc.h>
#include <linux/slab.h>
#include "idmap.h"
@ -1043,6 +1044,14 @@ nfsd4_allocate(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
return nfsd4_fallocate(rqstp, cstate, fallocate, 0);
}
static __be32
nfsd4_deallocate(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
struct nfsd4_fallocate *fallocate)
{
return nfsd4_fallocate(rqstp, cstate, fallocate,
FALLOC_FL_PUNCH_HOLE | FALLOC_FL_KEEP_SIZE);
}
static __be32
nfsd4_seek(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
struct nfsd4_seek *seek)
@ -1965,6 +1974,12 @@ static struct nfsd4_operation nfsd4_ops[] = {
.op_name = "OP_ALLOCATE",
.op_rsize_bop = (nfsd4op_rsize)nfsd4_write_rsize,
},
[OP_DEALLOCATE] = {
.op_func = (nfsd4op_func)nfsd4_deallocate,
.op_flags = OP_MODIFIES_SOMETHING | OP_CACHEME,
.op_name = "OP_DEALLOCATE",
.op_rsize_bop = (nfsd4op_rsize)nfsd4_write_rsize,
},
[OP_SEEK] = {
.op_func = (nfsd4op_func)nfsd4_seek,
.op_name = "OP_SEEK",

2
fs/nfsd/nfs4xdr.c
View File

@ -1624,7 +1624,7 @@ static nfsd4_dec nfsd4_dec_ops[] = {
[OP_ALLOCATE] = (nfsd4_dec)nfsd4_decode_fallocate,
[OP_COPY] = (nfsd4_dec)nfsd4_decode_notsupp,
[OP_COPY_NOTIFY] = (nfsd4_dec)nfsd4_decode_notsupp,
[OP_DEALLOCATE] = (nfsd4_dec)nfsd4_decode_notsupp,
[OP_DEALLOCATE] = (nfsd4_dec)nfsd4_decode_fallocate,
[OP_IO_ADVISE] = (nfsd4_dec)nfsd4_decode_notsupp,
[OP_LAYOUTERROR] = (nfsd4_dec)nfsd4_decode_notsupp,
[OP_LAYOUTSTATS] = (nfsd4_dec)nfsd4_decode_notsupp,

1
fs/nfsd/xdr4.h
View File

@ -494,6 +494,7 @@ struct nfsd4_op {
/* NFSv4.2 */
struct nfsd4_fallocate allocate;
struct nfsd4_fallocate deallocate;
struct nfsd4_seek seek;
} u;
struct nfs4_replay * replay;