From d1ccc4e400728d90f2ef7904661f53deb7199123 Mon Sep 17 00:00:00 2001 From: Brian Foster Date: Wed, 8 May 2013 08:54:11 -0400 Subject: gluster: add fallocate fop support Implement support for the fallocate file operation. fallocate allocates blocks for a particular inode such that future writes to the associated region of the file are guaranteed not to fail with ENOSPC. This patch adds fallocate support to the following areas: - libglusterfs - mount/fuse - io-stats - performance/md-cache,open-behind - quota - cluster/afr,dht,stripe - rpc/xdr - protocol/client,server - io-threads - marker - storage/posix - libgfapi BUG: 949242 Change-Id: Ice8e61351f9d6115c5df68768bc844abbf0ce8bd Signed-off-by: Brian Foster Reviewed-on: http://review.gluster.org/4969 Tested-by: Gluster Build System Reviewed-by: Anand Avati --- xlators/protocol/server/src/server-rpc-fops.c | 119 ++++++++++++++++++++++++++ 1 file changed, 119 insertions(+) (limited to 'xlators/protocol/server') diff --git a/xlators/protocol/server/src/server-rpc-fops.c b/xlators/protocol/server/src/server-rpc-fops.c index a9d2ee5b6..4b847eabd 100644 --- a/xlators/protocol/server/src/server-rpc-fops.c +++ b/xlators/protocol/server/src/server-rpc-fops.c @@ -1969,6 +1969,45 @@ out: return 0; } +int +server_fallocate_cbk(call_frame_t *frame, void *cookie, xlator_t *this, + int32_t op_ret, int32_t op_errno, + struct iatt *statpre, struct iatt *statpost, dict_t *xdata) +{ + gfs3_fallocate_rsp rsp = {0,}; + server_state_t *state = NULL; + rpcsvc_request_t *req = NULL; + + req = frame->local; + state = CALL_STATE (frame); + + GF_PROTOCOL_DICT_SERIALIZE (this, xdata, (&rsp.xdata.xdata_val), + rsp.xdata.xdata_len, op_errno, out); + + if (op_ret) { + gf_log (this->name, GF_LOG_INFO, + "%"PRId64": FALLOCATE %"PRId64" (%s) ==> (%s)", + frame->root->unique, state->resolve.fd_no, + uuid_utoa (state->resolve.gfid), + strerror (op_errno)); + goto out; + } + + gf_stat_from_iatt (&rsp.statpre, statpre); + gf_stat_from_iatt (&rsp.statpost, statpost); + +out: + rsp.op_ret = op_ret; + rsp.op_errno = gf_errno_to_error (op_errno); + + server_submit_reply(frame, req, &rsp, NULL, 0, NULL, + (xdrproc_t) xdr_gfs3_fallocate_rsp); + + GF_FREE (rsp.xdata.xdata_val); + + return 0; +} + /* Resume function section */ int @@ -2914,6 +2953,27 @@ err: return 0; } +int +server_fallocate_resume (call_frame_t *frame, xlator_t *bound_xl) +{ + server_state_t *state = NULL; + + state = CALL_STATE (frame); + + if (state->resolve.op_ret != 0) + goto err; + + STACK_WIND (frame, server_fallocate_cbk, + bound_xl, bound_xl->fops->fallocate, + state->fd, state->flags, state->offset, state->size, + state->xdata); + return 0; +err: + server_fallocate_cbk(frame, NULL, frame->this, state->resolve.op_ret, + state->resolve.op_errno, NULL, NULL, NULL); + + return 0; +} @@ -3094,7 +3154,65 @@ out: return ret; } +int +server3_3_fallocate(rpcsvc_request_t *req) +{ + server_state_t *state = NULL; + call_frame_t *frame = NULL; + gfs3_fallocate_req args = {{0},}; + int ret = -1; + int op_errno = 0; + + if (!req) + return ret; + + ret = xdr_to_generic (req->msg[0], &args, + (xdrproc_t)xdr_gfs3_fallocate_req); + if (ret < 0) { + //failed to decode msg; + req->rpc_err = GARBAGE_ARGS; + goto out; + } + + frame = get_frame_from_request (req); + if (!frame) { + // something wrong, mostly insufficient memory + req->rpc_err = GARBAGE_ARGS; /* TODO */ + goto out; + } + frame->root->op = GF_FOP_FALLOCATE; + + state = CALL_STATE (frame); + if (!state->conn->bound_xl) { + /* auth failure, request on subvolume without setvolume */ + req->rpc_err = GARBAGE_ARGS; + goto out; + } + + state->resolve.type = RESOLVE_MUST; + state->resolve.fd_no = args.fd; + + state->flags = args.flags; + state->offset = args.offset; + state->size = args.size; + memcpy(state->resolve.gfid, args.gfid, 16); + + GF_PROTOCOL_DICT_UNSERIALIZE (state->conn->bound_xl, state->xdata, + (args.xdata.xdata_val), + (args.xdata.xdata_len), ret, + op_errno, out); + + ret = 0; + resolve_and_resume (frame, server_fallocate_resume); + +out: + free (args.xdata.xdata_val); + + if (op_errno) + req->rpc_err = GARBAGE_ARGS; + return ret; +} int server3_3_readlink (rpcsvc_request_t *req) { @@ -5748,6 +5866,7 @@ rpcsvc_actor_t glusterfs3_3_fop_actors[] = { [GFS3_OP_SETATTR] = { "SETATTR", GFS3_OP_SETATTR, server3_3_setattr, NULL, 0}, [GFS3_OP_FSETATTR] = { "FSETATTR", GFS3_OP_FSETATTR, server3_3_fsetattr, NULL, 0}, [GFS3_OP_READDIRP] = { "READDIRP", GFS3_OP_READDIRP, server3_3_readdirp, NULL, 0}, + [GFS3_OP_FALLOCATE] = { "FALLOCATE", GFS3_OP_FALLOCATE, server3_3_fallocate, NULL, 0}, [GFS3_OP_RELEASE] = { "RELEASE", GFS3_OP_RELEASE, server3_3_release, NULL, 0}, [GFS3_OP_RELEASEDIR] = { "RELEASEDIR", GFS3_OP_RELEASEDIR, server3_3_releasedir, NULL, 0}, [GFS3_OP_FREMOVEXATTR] = { "FREMOVEXATTR", GFS3_OP_FREMOVEXATTR, server3_3_fremovexattr, NULL, 0}, -- cgit