cluster/afr: Have common inode-write-fop cbk

Change-Id: Ia7b324b86d6a7051d187106d7a060155e77defc5
BUG: 910217
Signed-off-by: Pranith Kumar K <pkarampu@redhat.com>
Reviewed-on: http://review.gluster.org/5238
Reviewed-by: Ravishankar N <ravishankar@redhat.com>
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Anand Avati <avati@redhat.com>

1 files changed, 7 insertions, 495 deletions

diff --git a/xlators/cluster/afr/src/afr-common.c b/xlators/cluster/afr/src/afr-common.c
index 37a782b31..8b6ab9a7f 100644
--- a/xlators/cluster/afr/src/afr-common.c
+++ b/xlators/cluster/afr/src/afr-common.c
@@ -2757,13 +2757,13 @@ afr_fsync_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
                         local->op_ret = 0;
 
                         if (local->success_count == 0) {
-                                local->cont.fsync.prebuf  = *prebuf;
-                                local->cont.fsync.postbuf = *postbuf;
+                                local->cont.inode_wfop.prebuf  = *prebuf;
+                                local->cont.inode_wfop.postbuf = *postbuf;
                         }
 
                         if (child_index == read_child) {
-                                local->cont.fsync.prebuf  = *prebuf;
-                                local->cont.fsync.postbuf = *postbuf;
+                                local->cont.inode_wfop.prebuf  = *prebuf;
+                                local->cont.inode_wfop.postbuf = *postbuf;
                         }
 
                         local->success_count++;
@@ -2787,8 +2787,9 @@ afr_fsync_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
 		*/
 		stub = fop_fsync_cbk_stub (frame, afr_fsync_unwind_cbk,
                                            local->op_ret, local->op_errno,
-                                           &local->cont.fsync.prebuf,
-                                           &local->cont.fsync.postbuf, xdata);
+                                           &local->cont.inode_wfop.prebuf,
+                                           &local->cont.inode_wfop.postbuf,
+                                           xdata);
 		if (!stub) {
 			AFR_STACK_UNWIND (fsync, frame, -1, ENOMEM, 0, 0, 0);
 			return 0;
@@ -2860,495 +2861,6 @@ out:
 
 /* }}} */
 
-/* {{{ fallocate */
-
-static int
-afr_fallocate_unwind (call_frame_t *frame, xlator_t *this)
-{
-        afr_local_t *   local = NULL;
-        call_frame_t   *main_frame = NULL;
-
-        local = frame->local;
-
-        LOCK (&frame->lock);
-        {
-                if (local->transaction.main_frame)
-                        main_frame = local->transaction.main_frame;
-                local->transaction.main_frame = NULL;
-        }
-        UNLOCK (&frame->lock);
-
-        if (main_frame) {
-                AFR_STACK_UNWIND (fallocate, main_frame, local->op_ret,
-                                  local->op_errno,
-                                  &local->cont.fallocate.prebuf,
-                                  &local->cont.fallocate.postbuf,
-                                  NULL);
-        }
-        return 0;
-}
-
-static int
-afr_fallocate_wind_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
-                        int32_t op_ret, int32_t op_errno, struct iatt *prebuf,
-                        struct iatt *postbuf, dict_t *xdata)
-{
-        afr_local_t *   local = NULL;
-        afr_private_t * priv  = NULL;
-        int child_index = (long) cookie;
-        int call_count  = -1;
-        int need_unwind = 0;
-        int read_child  = 0;
-
-        local = frame->local;
-        priv  = this->private;
-
-        read_child = afr_inode_get_read_ctx (this, local->fd->inode, NULL);
-
-        LOCK (&frame->lock);
-        {
-                if (child_index == read_child) {
-                        local->read_child_returned = _gf_true;
-                }
-
-                if (afr_fop_failed (op_ret, op_errno)) {
-                        afr_transaction_fop_failed (frame, this, child_index);
-                        local->child_errno[child_index] = op_errno;
-                }
-
-                if (op_ret != -1) {
-                        if (local->success_count == 0) {
-                                local->op_ret = op_ret;
-                                local->cont.fallocate.prebuf  = *prebuf;
-                                local->cont.fallocate.postbuf = *postbuf;
-                        }
-
-                        if (child_index == read_child) {
-                                local->cont.fallocate.prebuf  = *prebuf;
-                                local->cont.fallocate.postbuf = *postbuf;
-                        }
-
-                        local->success_count++;
-
-                        if ((local->success_count >= priv->wait_count)
-                            && local->read_child_returned) {
-                                need_unwind = 1;
-                        }
-                }
-                local->op_errno = op_errno;
-        }
-        UNLOCK (&frame->lock);
-
-        if (need_unwind)
-                local->transaction.unwind (frame, this);
-
-        call_count = afr_frame_return (frame);
-
-        if (call_count == 0) {
-                local->transaction.resume (frame, this);
-        }
-
-        return 0;
-}
-
-static int
-afr_fallocate_wind (call_frame_t *frame, xlator_t *this)
-{
-        afr_local_t *local = NULL;
-        afr_private_t *priv = NULL;
-        int call_count = -1;
-        int i = 0;
-
-        local = frame->local;
-        priv = this->private;
-
-        call_count = afr_pre_op_done_children_count (local->transaction.pre_op,
-                                                     priv->child_count);
-
-        if (call_count == 0) {
-                local->transaction.resume (frame, this);
-                return 0;
-        }
-
-        local->call_count = call_count;
-
-        for (i = 0; i < priv->child_count; i++) {
-                if (local->transaction.pre_op[i]) {
-                        STACK_WIND_COOKIE (frame, afr_fallocate_wind_cbk,
-                                           (void *) (long) i,
-                                           priv->children[i],
-                                           priv->children[i]->fops->fallocate,
-                                           local->fd,
-					   local->cont.fallocate.mode,
-                                           local->cont.fallocate.offset,
-					   local->cont.fallocate.len,
-                                           NULL);
-
-                        if (!--call_count)
-                                break;
-                }
-        }
-
-        return 0;
-}
-
-static int
-afr_fallocate_done (call_frame_t *frame, xlator_t *this)
-{
-        afr_local_t *local = NULL;
-
-        local = frame->local;
-
-        local->transaction.unwind (frame, this);
-
-        AFR_STACK_DESTROY (frame);
-
-        return 0;
-}
-
-static int
-afr_do_fallocate(call_frame_t *frame, xlator_t *this)
-{
-        call_frame_t * transaction_frame = NULL;
-        afr_local_t *  local             = NULL;
-        int op_ret   = -1;
-        int op_errno = 0;
-
-        local = frame->local;
-
-        transaction_frame = copy_frame (frame);
-        if (!transaction_frame) {
-                goto out;
-        }
-
-        transaction_frame->local = local;
-        frame->local = NULL;
-
-        local->op = GF_FOP_FALLOCATE;
-
-        local->transaction.fop    = afr_fallocate_wind;
-        local->transaction.done   = afr_fallocate_done;
-        local->transaction.unwind = afr_fallocate_unwind;
-
-        local->transaction.main_frame = frame;
-
-        local->transaction.start   = local->cont.fallocate.offset;
-        local->transaction.len     = 0;
-
-	/* fallocate can modify the file size */
-        op_ret = afr_transaction (transaction_frame, this, AFR_DATA_TRANSACTION);
-        if (op_ret < 0) {
-            op_errno = -op_ret;
-            goto out;
-        }
-
-        op_ret = 0;
-out:
-        if (op_ret < 0) {
-                if (transaction_frame)
-                        AFR_STACK_DESTROY (transaction_frame);
-                AFR_STACK_UNWIND (fallocate, frame, op_ret, op_errno, NULL,
-                                  NULL, NULL);
-        }
-
-        return 0;
-}
-
-int
-afr_fallocate(call_frame_t *frame, xlator_t *this, fd_t *fd, int32_t mode,
-	      off_t offset, size_t len, dict_t *xdata)
-{
-        afr_private_t * priv  = NULL;
-        afr_local_t   * local = NULL;
-        call_frame_t   *transaction_frame = NULL;
-        int ret = -1;
-        int op_errno = 0;
-
-        VALIDATE_OR_GOTO (frame, out);
-        VALIDATE_OR_GOTO (this, out);
-        VALIDATE_OR_GOTO (this->private, out);
-
-        priv = this->private;
-
-        if (afr_is_split_brain (this, fd->inode)) {
-                op_errno = EIO;
-                goto out;
-        }
-        QUORUM_CHECK(fallocate,out);
-
-        AFR_LOCAL_ALLOC_OR_GOTO (frame->local, out);
-        local = frame->local;
-
-        ret = afr_local_init (local, priv, &op_errno);
-        if (ret < 0)
-                goto out;
-
-	local->cont.fallocate.mode = mode;
-        local->cont.fallocate.offset  = offset;
-	local->cont.fallocate.len = len;
-
-        local->fd = fd_ref (fd);
-
-        afr_open_fd_fix (fd, this);
-
-        afr_do_fallocate (frame, this);
-
-        ret = 0;
-out:
-        if (ret < 0) {
-                if (transaction_frame)
-                        AFR_STACK_DESTROY (transaction_frame);
-                AFR_STACK_UNWIND (fallocate, frame, -1, op_errno, NULL, NULL, NULL);
-        }
-
-        return 0;
-}
-
-/* }}} */
-
-/* {{{ discard */
-
-static int
-afr_discard_unwind (call_frame_t *frame, xlator_t *this)
-{
-        afr_local_t *   local = NULL;
-        call_frame_t   *main_frame = NULL;
-
-        local = frame->local;
-
-        LOCK (&frame->lock);
-        {
-                if (local->transaction.main_frame)
-                        main_frame = local->transaction.main_frame;
-                local->transaction.main_frame = NULL;
-        }
-        UNLOCK (&frame->lock);
-
-        if (main_frame) {
-                AFR_STACK_UNWIND (discard, main_frame, local->op_ret,
-                                  local->op_errno,
-                                  &local->cont.discard.prebuf,
-                                  &local->cont.discard.postbuf,
-                                  NULL);
-        }
-        return 0;
-}
-
-static int
-afr_discard_wind_cbk(call_frame_t *frame, void *cookie, xlator_t *this,
-                     int32_t op_ret, int32_t op_errno, struct iatt *prebuf,
-                     struct iatt *postbuf, dict_t *xdata)
-{
-        afr_local_t *   local = NULL;
-        afr_private_t * priv  = NULL;
-        int child_index = (long) cookie;
-        int call_count  = -1;
-        int need_unwind = 0;
-        int read_child  = 0;
-
-        local = frame->local;
-        priv  = this->private;
-
-        read_child = afr_inode_get_read_ctx (this, local->fd->inode, NULL);
-
-        LOCK (&frame->lock);
-        {
-                if (child_index == read_child) {
-                        local->read_child_returned = _gf_true;
-                }
-
-                if (afr_fop_failed (op_ret, op_errno)) {
-                        afr_transaction_fop_failed (frame, this, child_index);
-                        local->child_errno[child_index] = op_errno;
-                }
-
-                if (op_ret != -1) {
-                        if (local->success_count == 0) {
-                                local->op_ret = op_ret;
-                                local->cont.discard.prebuf  = *prebuf;
-                                local->cont.discard.postbuf = *postbuf;
-                        }
-
-                        if (child_index == read_child) {
-                                local->cont.discard.prebuf  = *prebuf;
-                                local->cont.discard.postbuf = *postbuf;
-                        }
-
-                        local->success_count++;
-
-                        if ((local->success_count >= priv->wait_count)
-                            && local->read_child_returned) {
-                                need_unwind = 1;
-                        }
-                }
-                local->op_errno = op_errno;
-        }
-        UNLOCK (&frame->lock);
-
-        if (need_unwind)
-                local->transaction.unwind (frame, this);
-
-        call_count = afr_frame_return (frame);
-
-        if (call_count == 0) {
-                local->transaction.resume (frame, this);
-        }
-
-        return 0;
-}
-
-static int
-afr_discard_wind (call_frame_t *frame, xlator_t *this)
-{
-        afr_local_t *local = NULL;
-        afr_private_t *priv = NULL;
-        int call_count = -1;
-        int i = 0;
-
-        local = frame->local;
-        priv = this->private;
-
-        call_count = afr_pre_op_done_children_count (local->transaction.pre_op,
-                                                     priv->child_count);
-
-        if (call_count == 0) {
-                local->transaction.resume (frame, this);
-                return 0;
-        }
-
-        local->call_count = call_count;
-
-        for (i = 0; i < priv->child_count; i++) {
-                if (local->transaction.pre_op[i]) {
-                        STACK_WIND_COOKIE (frame, afr_discard_wind_cbk,
-                                           (void *) (long) i,
-                                           priv->children[i],
-                                           priv->children[i]->fops->discard,
-                                           local->fd,
-                                           local->cont.discard.offset,
-					   local->cont.discard.len,
-                                           NULL);
-
-                        if (!--call_count)
-                                break;
-                }
-        }
-
-        return 0;
-}
-
-static int
-afr_discard_done (call_frame_t *frame, xlator_t *this)
-{
-        afr_local_t *local = NULL;
-
-        local = frame->local;
-
-        local->transaction.unwind (frame, this);
-
-        AFR_STACK_DESTROY (frame);
-
-        return 0;
-}
-
-static int
-afr_do_discard(call_frame_t *frame, xlator_t *this)
-{
-        call_frame_t * transaction_frame = NULL;
-        afr_local_t *  local             = NULL;
-        int op_ret   = -1;
-        int op_errno = 0;
-
-        local = frame->local;
-
-        transaction_frame = copy_frame (frame);
-        if (!transaction_frame) {
-                goto out;
-        }
-
-        transaction_frame->local = local;
-        frame->local = NULL;
-
-        local->op = GF_FOP_DISCARD;
-
-        local->transaction.fop    = afr_discard_wind;
-        local->transaction.done   = afr_discard_done;
-        local->transaction.unwind = afr_discard_unwind;
-
-        local->transaction.main_frame = frame;
-
-        local->transaction.start   = local->cont.discard.offset;
-        local->transaction.len     = 0;
-
-        op_ret = afr_transaction (transaction_frame, this, AFR_DATA_TRANSACTION);
-        if (op_ret < 0) {
-            op_errno = -op_ret;
-            goto out;
-        }
-
-        op_ret = 0;
-out:
-        if (op_ret < 0) {
-                if (transaction_frame)
-                        AFR_STACK_DESTROY (transaction_frame);
-                AFR_STACK_UNWIND (discard, frame, op_ret, op_errno, NULL,
-                                  NULL, NULL);
-        }
-
-        return 0;
-}
-
-int
-afr_discard(call_frame_t *frame, xlator_t *this, fd_t *fd, off_t offset,
-	    size_t len, dict_t *xdata)
-{
-        afr_private_t * priv  = NULL;
-        afr_local_t   * local = NULL;
-        call_frame_t   *transaction_frame = NULL;
-        int ret = -1;
-        int op_errno = 0;
-
-        VALIDATE_OR_GOTO (frame, out);
-        VALIDATE_OR_GOTO (this, out);
-        VALIDATE_OR_GOTO (this->private, out);
-
-        priv = this->private;
-
-        if (afr_is_split_brain (this, fd->inode)) {
-                op_errno = EIO;
-                goto out;
-        }
-        QUORUM_CHECK(discard, out);
-
-        AFR_LOCAL_ALLOC_OR_GOTO (frame->local, out);
-        local = frame->local;
-
-        ret = afr_local_init (local, priv, &op_errno);
-        if (ret < 0)
-                goto out;
-
-        local->cont.discard.offset  = offset;
-	local->cont.discard.len = len;
-
-        local->fd = fd_ref (fd);
-
-        afr_open_fd_fix (fd, this);
-
-        afr_do_discard(frame, this);
-
-        ret = 0;
-out:
-        if (ret < 0) {
-                if (transaction_frame)
-                        AFR_STACK_DESTROY (transaction_frame);
-                AFR_STACK_UNWIND (discard, frame, -1, op_errno, NULL, NULL, NULL);
-        }
-
-        return 0;
-}
-
-/* }}} */
-
 /* {{{ fsync */
 
 int32_t