diff options
| author | Brian Foster <bfoster@redhat.com> | 2013-05-23 12:19:42 -0400 |
|---|---|---|
| committer | Anand Avati <avati@redhat.com> | 2013-06-13 14:37:43 -0700 |
| commit | 17f287172413dc04244781aa5302a0e4f10e2777 (patch) | |
| tree | 2acfc7097c92de32b19e82140befd8dc9fb2dad2 /rpc/xdr/src/glusterfs3-xdr.h | |
| parent | d1ccc4e400728d90f2ef7904661f53deb7199123 (diff) | |
glusterfs: discard (hole punch) support
Add support for the DISCARD file operation. Discard punches a hole
in a file in the provided range. Block de-allocation is implemented
via fallocate() (as requested via fuse and passed on to the brick
fs) but a separate fop is created within gluster to emphasize the
fact that discard changes file data (the discarded region is
replaced with zeroes) and must invalidate caches where appropriate.
BUG: 963678
Change-Id: I34633a0bfff2187afeab4292a15f3cc9adf261af
Signed-off-by: Brian Foster <bfoster@redhat.com>
Reviewed-on: http://review.gluster.org/5090
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Anand Avati <avati@redhat.com>
Diffstat (limited to 'rpc/xdr/src/glusterfs3-xdr.h')
| -rw-r--r-- | rpc/xdr/src/glusterfs3-xdr.h | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/rpc/xdr/src/glusterfs3-xdr.h b/rpc/xdr/src/glusterfs3-xdr.h index 2f9ba4b4552..9e5d2e67bcb 100644 --- a/rpc/xdr/src/glusterfs3-xdr.h +++ b/rpc/xdr/src/glusterfs3-xdr.h @@ -912,6 +912,30 @@ struct gfs3_fallocate_rsp { }; typedef struct gfs3_fallocate_rsp gfs3_fallocate_rsp; +struct gfs3_discard_req { + char gfid[16]; + quad_t fd; + u_quad_t offset; + u_quad_t size; + struct { + u_int xdata_len; + char *xdata_val; + } xdata; +}; +typedef struct gfs3_discard_req gfs3_discard_req; + +struct gfs3_discard_rsp { + int op_ret; + int op_errno; + struct gf_iatt statpre; + struct gf_iatt statpost; + struct { + u_int xdata_len; + char *xdata_val; + } xdata; +}; +typedef struct gfs3_discard_rsp gfs3_discard_rsp; + struct gfs3_rchecksum_req { quad_t fd; u_quad_t offset; @@ -1209,6 +1233,8 @@ extern bool_t xdr_gfs3_fsetattr_req (XDR *, gfs3_fsetattr_req*); extern bool_t xdr_gfs3_fsetattr_rsp (XDR *, gfs3_fsetattr_rsp*); extern bool_t xdr_gfs3_fallocate_req (XDR *, gfs3_fallocate_req*); extern bool_t xdr_gfs3_fallocate_rsp (XDR *, gfs3_fallocate_rsp*); +extern bool_t xdr_gfs3_discard_req (XDR *, gfs3_discard_req*); +extern bool_t xdr_gfs3_discard_rsp (XDR *, gfs3_discard_rsp*); extern bool_t xdr_gfs3_rchecksum_req (XDR *, gfs3_rchecksum_req*); extern bool_t xdr_gfs3_rchecksum_rsp (XDR *, gfs3_rchecksum_rsp*); extern bool_t xdr_gf_setvolume_req (XDR *, gf_setvolume_req*); @@ -1305,6 +1331,8 @@ extern bool_t xdr_gfs3_fsetattr_req (); extern bool_t xdr_gfs3_fsetattr_rsp (); extern bool_t xdr_gfs3_fallocate_req (); extern bool_t xdr_gfs3_fallocate_rsp (); +extern bool_t xdr_gfs3_discard_req (); +extern bool_t xdr_gfs3_discard_rsp (); extern bool_t xdr_gfs3_rchecksum_req (); extern bool_t xdr_gfs3_rchecksum_rsp (); extern bool_t xdr_gf_setvolume_req (); |