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-rw-r--r--xlators/cluster/ec/src/ec-data.h4
-rw-r--r--xlators/cluster/ec/src/ec-fops.h4
-rw-r--r--xlators/cluster/ec/src/ec-inode-read.c190
-rw-r--r--xlators/cluster/ec/src/ec.c12
4 files changed, 209 insertions, 1 deletions
diff --git a/xlators/cluster/ec/src/ec-data.h b/xlators/cluster/ec/src/ec-data.h
index 9107b4b156e..91f33c111ee 100644
--- a/xlators/cluster/ec/src/ec-data.h
+++ b/xlators/cluster/ec/src/ec-data.h
@@ -133,6 +133,7 @@ union _ec_cbk
fop_xattrop_cbk_t xattrop;
fop_fxattrop_cbk_t fxattrop;
fop_zerofill_cbk_t zerofill;
+ fop_seek_cbk_t seek;
};
struct _ec_lock
@@ -243,6 +244,7 @@ struct _ec_fop_data
struct gf_flock flock;
struct iovec *vector;
struct iobref *buffers;
+ gf_seek_what_t seek;
};
struct _ec_cbk_data
@@ -273,6 +275,8 @@ struct _ec_cbk_data
struct iobref * buffers;
char *str;
gf_dirent_t entries;
+ off_t offset;
+ gf_seek_what_t what;
};
struct _ec_heal
diff --git a/xlators/cluster/ec/src/ec-fops.h b/xlators/cluster/ec/src/ec-fops.h
index 7661077cca3..8d938427a18 100644
--- a/xlators/cluster/ec/src/ec-fops.h
+++ b/xlators/cluster/ec/src/ec-fops.h
@@ -195,4 +195,8 @@ void ec_fxattrop(call_frame_t * frame, xlator_t * this, uintptr_t target,
fd_t * fd, gf_xattrop_flags_t optype, dict_t * xattr,
dict_t * xdata);
+void ec_seek(call_frame_t *frame, xlator_t *this, uintptr_t target,
+ int32_t minimum, fop_seek_cbk_t func, void *data, fd_t *fd,
+ off_t offset, gf_seek_what_t what, dict_t *xdata);
+
#endif /* __EC_FOPS_H__ */
diff --git a/xlators/cluster/ec/src/ec-inode-read.c b/xlators/cluster/ec/src/ec-inode-read.c
index cbaa9bd9d3a..2f54ca8bdf6 100644
--- a/xlators/cluster/ec/src/ec-inode-read.c
+++ b/xlators/cluster/ec/src/ec-inode-read.c
@@ -1498,6 +1498,196 @@ out:
}
}
+/* FOP: seek */
+
+int32_t ec_seek_cbk(call_frame_t *frame, void *cookie, xlator_t *this,
+ int32_t op_ret, int32_t op_errno, off_t offset,
+ dict_t *xdata)
+{
+ ec_fop_data_t *fop = NULL;
+ ec_cbk_data_t *cbk = NULL;
+ ec_t *ec = this->private;
+ int32_t idx = (int32_t)(uintptr_t)cookie;
+
+ VALIDATE_OR_GOTO(this, out);
+ GF_VALIDATE_OR_GOTO(this->name, frame, out);
+ GF_VALIDATE_OR_GOTO(this->name, frame->local, out);
+ GF_VALIDATE_OR_GOTO(this->name, this->private, out);
+
+ fop = frame->local;
+
+ ec_trace("CBK", fop, "idx=%d, frame=%p, op_ret=%d, op_errno=%d", idx,
+ frame, op_ret, op_errno);
+
+ cbk = ec_cbk_data_allocate(frame, this, fop, GF_FOP_SEEK, idx, op_ret,
+ op_errno);
+ if (cbk != NULL) {
+ if (op_ret >= 0) {
+ cbk->offset = offset;
+ }
+ if (xdata != NULL) {
+ cbk->xdata = dict_ref(xdata);
+ }
+
+ if ((op_ret > 0) && ((cbk->offset % ec->fragment_size) != 0)) {
+ cbk->op_ret = -1;
+ cbk->op_errno = EIO;
+ }
+
+ ec_combine(cbk, NULL);
+ }
+
+out:
+ if (fop != NULL) {
+ ec_complete(fop);
+ }
+
+ return 0;
+}
+
+void ec_wind_seek(ec_t *ec, ec_fop_data_t *fop, int32_t idx)
+{
+ ec_trace("WIND", fop, "idx=%d", idx);
+
+ STACK_WIND_COOKIE(fop->frame, ec_seek_cbk, (void *)(uintptr_t)idx,
+ ec->xl_list[idx], ec->xl_list[idx]->fops->seek, fop->fd,
+ fop->offset, fop->seek, fop->xdata);
+}
+
+int32_t ec_manager_seek(ec_fop_data_t *fop, int32_t state)
+{
+ ec_cbk_data_t *cbk;
+
+ switch (state) {
+ case EC_STATE_INIT:
+ fop->user_size = fop->offset;
+ fop->head = ec_adjust_offset(fop->xl->private, &fop->offset, 1);
+
+ /* Fall through */
+
+ case EC_STATE_LOCK:
+ ec_lock_prepare_fd(fop, fop->fd, EC_QUERY_INFO);
+ ec_lock(fop);
+
+ return EC_STATE_DISPATCH;
+
+ case EC_STATE_DISPATCH:
+ ec_dispatch_one(fop);
+
+ return EC_STATE_PREPARE_ANSWER;
+
+ case EC_STATE_PREPARE_ANSWER:
+ cbk = fop->answer;
+ if (cbk != NULL) {
+ if (ec_dispatch_one_retry(fop, &cbk)) {
+ return EC_STATE_DISPATCH;
+ }
+ if (cbk->op_ret >= 0) {
+ ec_t *ec = fop->xl->private;
+
+ cbk->offset *= ec->fragments;
+ if (cbk->offset < fop->user_size) {
+ cbk->offset = fop->user_size;
+ }
+ } else {
+ ec_fop_set_error(fop, cbk->op_errno);
+ }
+ } else {
+ ec_fop_set_error(fop, EIO);
+ }
+
+ return EC_STATE_REPORT;
+
+ case EC_STATE_REPORT:
+ cbk = fop->answer;
+
+ GF_ASSERT(cbk != NULL);
+
+ if (fop->cbks.seek != NULL) {
+ fop->cbks.seek(fop->req_frame, fop, fop->xl, cbk->op_ret,
+ cbk->op_errno, cbk->offset, cbk->xdata);
+ }
+
+ return EC_STATE_LOCK_REUSE;
+
+ case -EC_STATE_INIT:
+ case -EC_STATE_LOCK:
+ case -EC_STATE_DISPATCH:
+ case -EC_STATE_PREPARE_ANSWER:
+ case -EC_STATE_REPORT:
+ GF_ASSERT(fop->error != 0);
+
+ if (fop->cbks.seek != NULL) {
+ fop->cbks.seek(fop->req_frame, fop, fop->xl, -1, fop->error, 0,
+ NULL);
+ }
+
+ return EC_STATE_LOCK_REUSE;
+
+ case -EC_STATE_LOCK_REUSE:
+ case EC_STATE_LOCK_REUSE:
+ ec_lock_reuse(fop);
+
+ return EC_STATE_UNLOCK;
+
+ case -EC_STATE_UNLOCK:
+ case EC_STATE_UNLOCK:
+ ec_unlock(fop);
+
+ return EC_STATE_END;
+
+ default:
+ gf_msg (fop->xl->name, GF_LOG_ERROR, 0,
+ EC_MSG_UNHANDLED_STATE, "Unhandled state %d for %s", state,
+ ec_fop_name(fop->id));
+
+ return EC_STATE_END;
+ }
+}
+
+void ec_seek(call_frame_t *frame, xlator_t *this, uintptr_t target,
+ int32_t minimum, fop_seek_cbk_t func, void *data, fd_t *fd,
+ off_t offset, gf_seek_what_t what, dict_t *xdata)
+{
+ ec_cbk_t callback = { .seek = func };
+ ec_fop_data_t *fop = NULL;
+ int32_t error = EIO;
+
+ gf_msg_trace ("ec", 0, "EC(SEEK) %p", frame);
+
+ VALIDATE_OR_GOTO(this, out);
+ GF_VALIDATE_OR_GOTO(this->name, frame, out);
+ GF_VALIDATE_OR_GOTO(this->name, this->private, out);
+
+ fop = ec_fop_data_allocate(frame, this, GF_FOP_SEEK, EC_FLAG_LOCK_SHARED,
+ target, minimum, ec_wind_seek,
+ ec_manager_seek, callback, data);
+ if (fop == NULL) {
+ goto out;
+ }
+
+ fop->use_fd = 1;
+
+ fop->offset = offset;
+ fop->seek = what;
+
+ if (fd != NULL) {
+ fop->fd = fd_ref(fd);
+ }
+ if (xdata != NULL) {
+ fop->xdata = dict_ref(xdata);
+ }
+
+ error = 0;
+
+out:
+ if (fop != NULL) {
+ ec_manager(fop, error);
+ } else {
+ func(frame, NULL, this, -1, EIO, 0, NULL);
+ }
+}
+
/* FOP: stat */
int32_t ec_combine_stat(ec_fop_data_t * fop, ec_cbk_data_t * dst,
diff --git a/xlators/cluster/ec/src/ec.c b/xlators/cluster/ec/src/ec.c
index e93ae4f86fb..aad24e4dab7 100644
--- a/xlators/cluster/ec/src/ec.c
+++ b/xlators/cluster/ec/src/ec.c
@@ -1157,6 +1157,15 @@ int32_t ec_gf_zerofill(call_frame_t * frame, xlator_t * this, fd_t * fd,
return 0;
}
+int32_t ec_gf_seek(call_frame_t *frame, xlator_t *this, fd_t *fd, off_t offset,
+ gf_seek_what_t what, dict_t *xdata)
+{
+ ec_seek(frame, this, -1, EC_MINIMUM_ONE, default_seek_cbk, NULL, fd,
+ offset, what, xdata);
+
+ return 0;
+}
+
int32_t ec_gf_forget(xlator_t * this, inode_t * inode)
{
uint64_t value = 0;
@@ -1271,7 +1280,8 @@ struct xlator_fops fops =
.fsetattr = ec_gf_fsetattr,
.fallocate = ec_gf_fallocate,
.discard = ec_gf_discard,
- .zerofill = ec_gf_zerofill
+ .zerofill = ec_gf_zerofill,
+ .seek = ec_gf_seek
};
struct xlator_cbks cbks =
generated by cgit (git 2.34.1) at 2024-11-18 06:23:16 +0000