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 /libglusterfs/src/call-stub.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 'libglusterfs/src/call-stub.h')
| -rw-r--r-- | libglusterfs/src/call-stub.h | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/libglusterfs/src/call-stub.h b/libglusterfs/src/call-stub.h index d940fe6f173..f0872b1219a 100644 --- a/libglusterfs/src/call-stub.h +++ b/libglusterfs/src/call-stub.h @@ -70,6 +70,7 @@ typedef struct { fop_setattr_t setattr; fop_fsetattr_t fsetattr; fop_fallocate_t fallocate; + fop_discard_t discard; } fn; union { @@ -115,6 +116,7 @@ typedef struct { fop_setattr_cbk_t setattr; fop_fsetattr_cbk_t fsetattr; fop_fallocate_cbk_t fallocate; + fop_discard_cbk_t discard; } fn_cbk; struct { @@ -729,6 +731,20 @@ fop_fallocate_cbk_stub(call_frame_t *frame, struct iatt *statpre, struct iatt *statpost, dict_t *xdata); +call_stub_t * +fop_discard_stub(call_frame_t *frame, + fop_discard_t fn, + fd_t *fd, + off_t offset, + size_t len, dict_t *xdata); + +call_stub_t * +fop_discard_cbk_stub(call_frame_t *frame, + fop_discard_cbk_t fn, + int32_t op_ret, int32_t op_errno, + struct iatt *statpre, struct iatt *statpost, + dict_t *xdata); + void call_resume (call_stub_t *stub); void call_stub_destroy (call_stub_t *stub); void call_unwind_error (call_stub_t *stub, int op_ret, int op_errno); |