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-rw-r--r--xlators/cluster/afr/src/afr-common.c680
1 files changed, 522 insertions, 158 deletions
diff --git a/xlators/cluster/afr/src/afr-common.c b/xlators/cluster/afr/src/afr-common.c
index b753cbfa85c..e8afc6d8de6 100644
--- a/xlators/cluster/afr/src/afr-common.c
+++ b/xlators/cluster/afr/src/afr-common.c
@@ -87,187 +87,444 @@ out:
return ret;
}
-uint64_t
-afr_is_split_brain (xlator_t *this, inode_t *inode)
+afr_inode_ctx_t*
+afr_inode_ctx_get_from_addr (uint64_t addr, int32_t child_count)
{
- int ret = 0;
+ int ret = -1;
+ afr_inode_ctx_t *ctx = NULL;
+ size_t size = 0;
- uint64_t ctx = 0;
- uint64_t split_brain = 0;
+ GF_ASSERT (child_count > 0);
- VALIDATE_OR_GOTO (inode, out);
+ if (!addr) {
+ ctx = GF_CALLOC (1, sizeof (*ctx),
+ gf_afr_mt_inode_ctx_t);
+ if (!ctx)
+ goto out;
+ size = sizeof (*ctx->fresh_children);
+ ctx->fresh_children = GF_CALLOC (child_count, size,
+ gf_afr_mt_int32_t);
+ if (!ctx->fresh_children)
+ goto out;
+ } else {
+ ctx = (afr_inode_ctx_t*) (long) addr;
+ }
+ ret = 0;
+out:
+ if (ret && ctx) {
+ if (ctx->fresh_children)
+ GF_FREE (ctx->fresh_children);
+ GF_FREE (ctx);
+ ctx = NULL;
+ }
+ return ctx;
+}
+
+void
+afr_inode_get_ctx (xlator_t *this, inode_t *inode, afr_inode_params_t *params)
+{
+ GF_ASSERT (inode);
+ GF_ASSERT (params);
+ int ret = 0;
+ afr_inode_ctx_t *ctx = NULL;
+ afr_private_t *priv = NULL;
+ int i = 0;
+ uint64_t ctx_addr = 0;
+ int32_t read_child = -1;
+ int32_t *fresh_children = NULL;
+
+ priv = this->private;
LOCK (&inode->lock);
{
- ret = __inode_ctx_get (inode, this, &ctx);
-
+ ret = __inode_ctx_get (inode, this, &ctx_addr);
if (ret < 0)
goto unlock;
-
- split_brain = ctx & AFR_ICTX_SPLIT_BRAIN_MASK;
+ ctx = afr_inode_ctx_get_from_addr (ctx_addr, priv->child_count);
+ if (!ctx)
+ goto unlock;
+ switch (params->mask_type) {
+ case AFR_ICTX_READ_CHILD_MASK:
+ fresh_children = params->u.read_ctx.fresh_children;
+ read_child = (int32_t)(ctx->masks &
+ AFR_ICTX_READ_CHILD_MASK);
+ params->u.read_ctx.read_child = read_child;
+ if (!fresh_children)
+ goto unlock;
+ for (i = 0; i < priv->child_count; i++)
+ fresh_children[i] = ctx->fresh_children[i];
+ break;
+ case AFR_ICTX_OPENDIR_DONE_MASK:
+ params->u.value = ctx->masks &
+ AFR_ICTX_OPENDIR_DONE_MASK;
+ break;
+ case AFR_ICTX_SPLIT_BRAIN_MASK:
+ params->u.value = ctx->masks & AFR_ICTX_SPLIT_BRAIN_MASK;
+ break;
+ }
}
unlock:
UNLOCK (&inode->lock);
+}
-out:
- return split_brain;
+uint64_t
+afr_is_split_brain (xlator_t *this, inode_t *inode)
+{
+ afr_inode_params_t params = {0};
+
+ params.mask_type = AFR_ICTX_SPLIT_BRAIN_MASK;
+ afr_inode_get_ctx (this, inode, &params);
+ return params.u.value;
+}
+
+gf_boolean_t
+afr_is_opendir_done (xlator_t *this, inode_t *inode)
+{
+ afr_inode_params_t params = {0};
+
+ params.mask_type = AFR_ICTX_OPENDIR_DONE_MASK;
+ afr_inode_get_ctx (this, inode, &params);
+ return params.u.value;
}
+int32_t
+afr_inode_get_read_ctx (xlator_t *this, inode_t *inode, int32_t *fresh_children)
+{
+ afr_inode_params_t params = {0};
+
+ params.mask_type = AFR_ICTX_READ_CHILD_MASK;
+ params.u.read_ctx.fresh_children = fresh_children;
+ afr_inode_get_ctx (this, inode, &params);
+ return params.u.read_ctx.read_child;
+}
+
void
-afr_set_split_brain (xlator_t *this, inode_t *inode, gf_boolean_t set)
+afr_inode_ctx_set_read_ctx (afr_inode_ctx_t *ctx, int32_t read_child,
+ int32_t *fresh_children, int32_t child_count)
{
- uint64_t ctx = 0;
- int ret = 0;
+ uint64_t rest_of_mask = 0;
+ uint64_t mask = 0;
+ int i = 0;
- VALIDATE_OR_GOTO (inode, out);
+ rest_of_mask = (~AFR_ICTX_READ_CHILD_MASK & ctx->masks);
+ mask = (AFR_ICTX_READ_CHILD_MASK & read_child);
+ ctx->masks = rest_of_mask | mask;
- LOCK (&inode->lock);
- {
- ret = __inode_ctx_get (inode, this, &ctx);
+ /* avoid memcpy as int, int32_t are used interchangeably
+ */
+ for (i = 0; i < child_count; i++) {
+ if (fresh_children)
+ ctx->fresh_children[i] = fresh_children[i];
+ else
+ ctx->fresh_children[i] = -1;
+ }
+}
- if (ret < 0) {
- ctx = 0;
- }
+void
+afr_inode_ctx_set_opendir_done (afr_inode_ctx_t *ctx)
+{
+ uint64_t rest_of_mask = 0;
+ uint64_t mask = 0;
- if (set) {
- ctx = (~AFR_ICTX_SPLIT_BRAIN_MASK & ctx)
- | (0xFFFFFFFFFFFFFFFFULL & AFR_ICTX_SPLIT_BRAIN_MASK);
- } else {
- ctx = (~AFR_ICTX_SPLIT_BRAIN_MASK & ctx);
- }
+ rest_of_mask = (~AFR_ICTX_OPENDIR_DONE_MASK & ctx->masks);
+ mask = (0xFFFFFFFFFFFFFFFFULL & AFR_ICTX_OPENDIR_DONE_MASK);
+ ctx->masks = rest_of_mask | mask;
+}
- ret = __inode_ctx_put (inode, this, ctx);
- if (ret) {
- gf_log_callingfn (this->name, GF_LOG_INFO,
- "failed to set the inode ctx (%s)",
- uuid_utoa (inode->gfid));
- }
+void
+afr_inode_ctx_set_splitbrain (afr_inode_ctx_t *ctx, gf_boolean_t set)
+{
+ uint64_t rest_of_mask = 0;
+ uint64_t mask = 0;
+
+ if (set) {
+ rest_of_mask = (~AFR_ICTX_SPLIT_BRAIN_MASK & ctx->masks);
+ mask = (0xFFFFFFFFFFFFFFFFULL & AFR_ICTX_SPLIT_BRAIN_MASK);
+ ctx->masks = rest_of_mask | mask;
+ } else {
+ ctx->masks = (~AFR_ICTX_SPLIT_BRAIN_MASK & ctx->masks);
}
- UNLOCK (&inode->lock);
-out:
- return;
}
-
-uint64_t
-afr_is_opendir_done (xlator_t *this, inode_t *inode)
+void
+afr_inode_set_ctx (xlator_t *this, inode_t *inode, afr_inode_params_t *params)
{
- int ret = 0;
- uint64_t ctx = 0;
- uint64_t opendir_done = 0;
+ GF_ASSERT (inode);
+ GF_ASSERT (params);
- VALIDATE_OR_GOTO (inode, out);
+ int ret = 0;
+ afr_inode_ctx_t *ctx = NULL;
+ afr_private_t *priv = NULL;
+ uint64_t ctx_addr = 0;
+ gf_boolean_t set = _gf_false;
+ int32_t read_child = -1;
+ int32_t *fresh_children = NULL;
+ priv = this->private;
LOCK (&inode->lock);
{
- ret = __inode_ctx_get (inode, this, &ctx);
-
+ ret = __inode_ctx_get (inode, this, &ctx_addr);
if (ret < 0)
+ ctx_addr = 0;
+ ctx = afr_inode_ctx_get_from_addr (ctx_addr, priv->child_count);
+ if (!ctx)
goto unlock;
-
- opendir_done = ctx & AFR_ICTX_OPENDIR_DONE_MASK;
+ switch (params->mask_type) {
+ case AFR_ICTX_READ_CHILD_MASK:
+ read_child = params->u.read_ctx.read_child;
+ fresh_children = params->u.read_ctx.fresh_children;
+ afr_inode_ctx_set_read_ctx (ctx, read_child,
+ fresh_children,
+ priv->child_count);
+ break;
+ case AFR_ICTX_OPENDIR_DONE_MASK:
+ afr_inode_ctx_set_opendir_done (ctx);
+ break;
+ case AFR_ICTX_SPLIT_BRAIN_MASK:
+ set = params->u.value;
+ afr_inode_ctx_set_splitbrain (ctx, set);
+ break;
+ }
+ ret = __inode_ctx_put (inode, this, (uint64_t)ctx);
+ if (ret) {
+ gf_log_callingfn (this->name, GF_LOG_ERROR, "failed to "
+ "set the inode ctx (%s)",
+ uuid_utoa (inode->gfid));
+ }
}
unlock:
UNLOCK (&inode->lock);
-
-out:
- return opendir_done;
}
+void
+afr_set_split_brain (xlator_t *this, inode_t *inode, gf_boolean_t set)
+{
+ afr_inode_params_t params = {0};
+
+ params.mask_type = AFR_ICTX_SPLIT_BRAIN_MASK;
+ params.u.value = set;
+ afr_inode_set_ctx (this, inode, &params);
+}
void
afr_set_opendir_done (xlator_t *this, inode_t *inode)
{
- uint64_t ctx = 0;
- int ret = 0;
+ afr_inode_params_t params = {0};
- VALIDATE_OR_GOTO (inode, out);
+ params.mask_type = AFR_ICTX_OPENDIR_DONE_MASK;
+ afr_inode_set_ctx (this, inode, &params);
+}
- LOCK (&inode->lock);
- {
- ret = __inode_ctx_get (inode, this, &ctx);
+void
+afr_inode_set_read_ctx (xlator_t *this, inode_t *inode, int32_t read_child,
+ int32_t *fresh_children)
+{
+ afr_inode_params_t params = {0};
- if (ret < 0) {
- ctx = 0;
- }
+ GF_ASSERT (read_child >= 0);
+ GF_ASSERT (fresh_children);
- ctx = (~AFR_ICTX_OPENDIR_DONE_MASK & ctx)
- | (0xFFFFFFFFFFFFFFFFULL & AFR_ICTX_OPENDIR_DONE_MASK);
+ params.mask_type = AFR_ICTX_READ_CHILD_MASK;
+ params.u.read_ctx.read_child = read_child;
+ params.u.read_ctx.fresh_children = fresh_children;
+ afr_inode_set_ctx (this, inode, &params);
+}
- ret = __inode_ctx_put (inode, this, ctx);
- if (ret) {
- gf_log_callingfn (this->name, GF_LOG_INFO,
- "failed to set the inode ctx (%s)",
- uuid_utoa (inode->gfid));
- }
+gf_boolean_t
+afr_is_source_child (int32_t *sources, int32_t child_count, int32_t child)
+{
+ gf_boolean_t source_xattrs = _gf_false;
+
+ GF_ASSERT (child < child_count);
+
+ if ((child >= 0) && (child < child_count) &&
+ sources[child]) {
+ source_xattrs = _gf_true;
}
- UNLOCK (&inode->lock);
-out:
- return;
+ return source_xattrs;
}
+gf_boolean_t
+afr_is_success_child (int32_t *success_children, int32_t child_count,
+ int32_t child)
+{
+ gf_boolean_t success_child = _gf_false;
+ int i = 0;
-uint64_t
-afr_read_child (xlator_t *this, inode_t *inode)
+ GF_ASSERT (child < child_count);
+
+ for (i = 0; i < child_count; i++) {
+ if (success_children[i] == -1)
+ break;
+ if (child == success_children[i]) {
+ success_child = _gf_true;
+ break;
+ }
+ }
+ return success_child;
+}
+
+gf_boolean_t
+afr_is_read_child (int32_t *success_children, int32_t *sources,
+ int32_t child_count, int32_t child)
{
- int ret = 0;
+ gf_boolean_t success_child = _gf_false;
+ gf_boolean_t source = _gf_false;
- uint64_t ctx = 0;
- uint64_t read_child = 0;
+ GF_ASSERT (success_children);
+ GF_ASSERT (child_count > 0);
- VALIDATE_OR_GOTO (inode, out);
+ success_child = afr_is_success_child (success_children, child_count,
+ child);
+ if (!success_child)
+ goto out;
+ if (NULL == sources) {
+ source = _gf_true;
+ goto out;
+ }
+ source = afr_is_source_child (sources, child_count, child);
+out:
+ return (success_child && source);
+}
- LOCK (&inode->lock);
- {
- ret = __inode_ctx_get (inode, this, &ctx);
+/* If sources is NULL the xattrs are assumed to be of source for all
+ * success_children.
+ */
+int
+afr_select_read_child_from_policy (int32_t *success_children, int32_t child_count,
+ int32_t prev_read_child,
+ int32_t config_read_child, int32_t *sources)
+{
+ int32_t read_child = -1;
+ int i = 0;
- if (ret < 0)
- goto unlock;
+ GF_ASSERT (success_children);
+
+ read_child = prev_read_child;
+ if (afr_is_read_child (success_children, sources, child_count,
+ read_child))
+ goto out;
+
+ read_child = config_read_child;
+ if (afr_is_read_child (success_children, sources, child_count,
+ read_child))
+ goto out;
- read_child = ctx & AFR_ICTX_READ_CHILD_MASK;
+ for (i = 0; i < child_count; i++) {
+ read_child = success_children[i];
+ if (read_child < 0)
+ break;
+ if (afr_is_read_child (success_children, sources, child_count,
+ read_child))
+ goto out;
}
-unlock:
- UNLOCK (&inode->lock);
+ read_child = -1;
out:
return read_child;
}
-
+/* This function should be used when all the success_children are sources
+ */
void
-afr_set_read_child (xlator_t *this, inode_t *inode, int32_t read_child)
+afr_set_read_ctx_from_policy (xlator_t *this, inode_t *inode,
+ int32_t *fresh_children, int32_t prev_read_child,
+ int32_t config_read_child)
{
- uint64_t ctx = 0;
- int ret = 0;
+ int read_child = -1;
+ afr_private_t *priv = NULL;
- VALIDATE_OR_GOTO (inode, out);
+ priv = this->private;
+ read_child = afr_select_read_child_from_policy (fresh_children,
+ priv->child_count,
+ prev_read_child,
+ config_read_child,
+ NULL);
+ afr_inode_set_read_ctx (this, inode, read_child, fresh_children);
+}
+
+/* afr_next_call_child ()
+ * This is a common function used by all the read-type fops
+ * This function should not be called with the inode's read_children array.
+ * The fop's handler should make a copy of the inode's read_children,
+ * preferred read_child into the local vars, because while this function is
+ * in execution there is a chance for inode's read_ctx to change.
+ */
+int32_t
+afr_next_call_child (int32_t *fresh_children, size_t child_count,
+ int32_t *last_index, int32_t read_child)
+{
+ int next_index = 0;
+ int32_t next_call_child = -1;
- LOCK (&inode->lock);
- {
- ret = __inode_ctx_get (inode, this, &ctx);
+ GF_ASSERT (last_index);
- if (ret < 0) {
- ctx = 0;
- }
+ next_index = *last_index;
+retry:
+ next_index++;
+ if (next_index >= child_count)
+ goto out;
+ if (fresh_children[next_index] == read_child)
+ goto retry;
+ if (fresh_children[next_index] == -1)
+ goto out;
+ *last_index = next_index;
+ next_call_child = fresh_children[next_index];
+out:
+ return next_call_child;
+}
- ctx = (~AFR_ICTX_READ_CHILD_MASK & ctx)
- | (AFR_ICTX_READ_CHILD_MASK & read_child);
+ /* This function should not be called with the inode's read_children array.
+ * The fop's handler should make a copy of the inode's read_children,
+ * preferred read_child into the local vars, because while this function is
+ * in execution there is a chance for inode's read_ctx to change.
+ */
+int32_t
+afr_get_call_child (xlator_t *this, unsigned char *child_up, int32_t read_child,
+ int32_t *fresh_children,
+ int32_t *call_child, int32_t *last_index)
+{
+ int ret = 0;
+ afr_private_t *priv = NULL;
+ int i = 0;
- ret = __inode_ctx_put (inode, this, ctx);
- if (ret) {
- gf_log_callingfn (this->name, GF_LOG_INFO,
- "failed to set the inode ctx (%s)",
- uuid_utoa (inode->gfid));
+ GF_ASSERT (child_up);
+ GF_ASSERT (call_child);
+ GF_ASSERT (last_index);
+ GF_ASSERT (fresh_children);
+ GF_ASSERT (read_child >= 0);
+
+ priv = this->private;
+ *call_child = -1;
+ *last_index = -1;
+
+ if (child_up[read_child]) {
+ *call_child = read_child;
+ } else {
+ for (i = 0; i < priv->child_count; i++) {
+ if (fresh_children[i] == -1)
+ break;
+ if (child_up[fresh_children[i]]) {
+ *call_child = fresh_children[i];
+ ret = 0;
+ break;
+ }
}
- }
- UNLOCK (&inode->lock);
+ if (*call_child == -1) {
+ ret = -ENOTCONN;
+ goto out;
+ }
+
+ *last_index = i;
+ }
out:
- return;
+ gf_log (this->name, GF_LOG_DEBUG, "Returning %d, call_child: %d, "
+ "last_index: %d", ret, *call_child, *last_index);
+ return ret;
}
-
void
afr_local_sh_cleanup (afr_local_t *local, xlator_t *this)
{
@@ -325,8 +582,12 @@ afr_local_sh_cleanup (afr_local_t *local, xlator_t *this)
if (sh->linkname)
GF_FREE ((char *)sh->linkname);
- if (sh->child_success)
- GF_FREE (sh->child_success);
+
+ if (sh->success_children)
+ GF_FREE (sh->success_children);
+
+ if (sh->fresh_children)
+ GF_FREE (sh->fresh_children);
loc_wipe (&sh->parent_loc);
}
@@ -398,6 +659,9 @@ afr_local_cleanup (afr_local_t *local, xlator_t *this)
if (local->child_up)
GF_FREE (local->child_up);
+ if (local->fresh_children)
+ GF_FREE (local->fresh_children);
+
{ /* lookup */
if (local->cont.lookup.xattrs) {
for (i = 0; i < priv->child_count; i++) {
@@ -424,8 +688,8 @@ afr_local_cleanup (afr_local_t *local, xlator_t *this)
if (local->cont.lookup.bufs)
GF_FREE (local->cont.lookup.bufs);
- if (local->cont.lookup.child_success)
- GF_FREE (local->cont.lookup.child_success);
+ if (local->cont.lookup.success_children)
+ GF_FREE (local->cont.lookup.success_children);
if (local->cont.lookup.sources)
GF_FREE (local->cont.lookup.sources);
@@ -734,20 +998,21 @@ int
afr_lookup_select_read_child (afr_local_t *local, xlator_t *this,
int32_t *read_child)
{
- int32_t source = -1;
- ia_type_t ia_type = 0;
- int ret = -1;
- afr_transaction_type type = AFR_METADATA_TRANSACTION;
- dict_t **xattrs = NULL;
- int32_t *child_success = NULL;
- struct iatt *bufs = NULL;
+ int32_t source = -1;
+ ia_type_t ia_type = 0;
+ int ret = -1;
+ afr_transaction_type type = AFR_METADATA_TRANSACTION;
+ dict_t **xattrs = NULL;
+ int32_t *success_children = NULL;
+ struct iatt *bufs = NULL;
GF_ASSERT (local);
GF_ASSERT (this);
+ GF_ASSERT (local->success_count > 0);
bufs = local->cont.lookup.bufs;
- child_success = local->cont.lookup.child_success;
- ia_type = local->cont.lookup.bufs[child_success[0]].ia_type;
+ success_children = local->cont.lookup.success_children;
+ ia_type = local->cont.lookup.bufs[success_children[0]].ia_type;
if (IA_ISDIR (ia_type)) {
type = AFR_ENTRY_TRANSACTION;
} else if (IA_ISREG (ia_type)) {
@@ -773,7 +1038,7 @@ afr_is_self_heal_running (afr_local_t *local)
}
static void
-afr_launch_self_heal (call_frame_t *frame, xlator_t *this,
+afr_launch_self_heal (call_frame_t *frame, xlator_t *this, inode_t *inode,
gf_boolean_t is_background, ia_type_t ia_type,
int (*unwind) (call_frame_t *frame, xlator_t *this))
{
@@ -782,6 +1047,7 @@ afr_launch_self_heal (call_frame_t *frame, xlator_t *this,
GF_ASSERT (frame);
GF_ASSERT (this);
+ GF_ASSERT (inode);
local = frame->local;
local->self_heal.background = is_background;
@@ -796,7 +1062,7 @@ afr_launch_self_heal (call_frame_t *frame, xlator_t *this,
"background %s self-heal triggered. path: %s",
sh_type_str, local->loc.path);
- afr_self_heal (frame, this);
+ afr_self_heal (frame, this, inode);
}
static void
@@ -813,8 +1079,8 @@ afr_lookup_detect_self_heal (afr_local_t *local, xlator_t *this)
bufs = local->cont.lookup.bufs;
for (i = 1; i < local->success_count; i++) {
- child1 = local->cont.lookup.child_success[i-1];
- child2 = local->cont.lookup.child_success[i];;
+ child1 = local->cont.lookup.success_children[i-1];
+ child2 = local->cont.lookup.success_children[i];
afr_detect_self_heal_by_iatt (local, this,
&bufs[child1], &bufs[child2]);
}
@@ -822,7 +1088,7 @@ afr_lookup_detect_self_heal (afr_local_t *local, xlator_t *this)
xattr = local->cont.lookup.xattrs;
priv = this->private;
for (i = 0; i < local->success_count; i++) {
- child1 = local->cont.lookup.child_success[i];;
+ child1 = local->cont.lookup.success_children[i];
afr_lookup_detect_self_heal_by_xattr (local, this,
xattr[child1]);
}
@@ -860,8 +1126,8 @@ afr_lookup_perform_self_heal_if_needed (call_frame_t *frame, xlator_t *this,
goto out;
}
- afr_launch_self_heal (frame, this, _gf_true,
- local->cont.lookup.buf.ia_type,
+ afr_launch_self_heal (frame, this, local->cont.lookup.inode,
+ _gf_true, local->cont.lookup.buf.ia_type,
afr_self_heal_lookup_unwind);
*sh_launched = _gf_true;
}
@@ -875,22 +1141,22 @@ afr_lookup_split_brain (afr_local_t *local, xlator_t *this)
int i = 0;
gf_boolean_t symptom = _gf_false;
struct iatt *bufs = NULL;
- int32_t *child_success = NULL;
+ int32_t *success_children = NULL;
struct iatt *child1 = NULL;
struct iatt *child2 = NULL;
const char *path = NULL;
bufs = local->cont.lookup.bufs;
- child_success = local->cont.lookup.child_success;
+ success_children = local->cont.lookup.success_children;
for (i = 1; i < local->success_count; i++) {
- child1 = &bufs[child_success[i-1]];
- child2 = &bufs[child_success[i]];
+ child1 = &bufs[success_children[i-1]];
+ child2 = &bufs[success_children[i]];
/*
* TODO: gfid self-heal
* if (uuid_compare (child1->ia_gfid, child2->ia_gfid)) {
* gf_log (this->name, GF_LOG_WARNING, "%s: gfid differs"
* " on subvolumes (%d, %d)", local->loc.path,
- * child_success[i-1], child_success[i]);
+ * success_children[i-1], success_children[i]);
* symptom = _gf_true;
* }
*/
@@ -899,7 +1165,7 @@ afr_lookup_split_brain (afr_local_t *local, xlator_t *this)
path = local->loc.path;
gf_log (this->name, GF_LOG_WARNING, "%s: filetype "
"differs on subvolumes (%d, %d)", path,
- child_success[i-1], child_success[i]);
+ success_children[i-1], success_children[i]);
symptom = _gf_true;
local->govinda_gOvinda = 1;
}
@@ -909,13 +1175,42 @@ afr_lookup_split_brain (afr_local_t *local, xlator_t *this)
return symptom;
}
+void
+afr_get_fresh_children (int32_t *success_children, int32_t *sources,
+ int32_t *fresh_children, unsigned int child_count)
+{
+ unsigned int i = 0;
+ unsigned int j = 0;
+
+ GF_ASSERT (success_children);
+ GF_ASSERT (sources);
+ GF_ASSERT (fresh_children);
+
+ for (i = 0; i < child_count; i++) {
+ if (success_children[i] == -1)
+ break;
+ if (afr_is_read_child (success_children, sources, child_count,
+ success_children[i])) {
+ fresh_children[j] = success_children[i];
+ j++;
+ }
+ }
+}
+
static int
-afr_lookup_set_read_child (afr_local_t *local, xlator_t *this, int32_t read_child)
+afr_lookup_set_read_ctx (afr_local_t *local, xlator_t *this, int32_t read_child)
{
+ afr_private_t *priv = NULL;
+
GF_ASSERT (read_child >= 0);
- afr_set_read_child (this, local->cont.lookup.inode, read_child);
+ priv = this->private;
local->cont.lookup.read_child = read_child;
+ afr_get_fresh_children (local->cont.lookup.success_children,
+ local->cont.lookup.sources,
+ local->fresh_children, priv->child_count);
+ afr_inode_set_read_ctx (this, local->cont.lookup.inode, read_child,
+ local->fresh_children);
return 0;
}
@@ -949,7 +1244,7 @@ afr_lookup_done (call_frame_t *frame, xlator_t *this)
goto unwind;
}
- ret = afr_lookup_set_read_child (local, this, read_child);
+ ret = afr_lookup_set_read_ctx (local, this, read_child);
if (ret)
goto unwind;
@@ -1070,7 +1365,7 @@ afr_lookup_handle_success (afr_local_t *local, xlator_t *this, int32_t child_ind
afr_lookup_cache_args (local, child_index, xattr,
buf, postparent);
- local->cont.lookup.child_success[local->success_count] = child_index;
+ local->cont.lookup.success_children[local->success_count] = child_index;
local->success_count++;
}
@@ -1114,9 +1409,8 @@ int
afr_lookup_cont_init (afr_local_t *local, unsigned int child_count)
{
int ret = -ENOMEM;
- int32_t *child_success = NULL;
struct iatt *iatts = NULL;
- int i = 0;
+ int32_t *success_children = NULL;
GF_ASSERT (local);
local->cont.lookup.xattrs = GF_CALLOC (child_count,
@@ -1135,14 +1429,14 @@ afr_lookup_cont_init (afr_local_t *local, unsigned int child_count)
goto out;
local->cont.lookup.bufs = iatts;
- child_success = GF_CALLOC (child_count, sizeof (*child_success),
- gf_afr_mt_char);
- if (NULL == child_success)
+ success_children = afr_fresh_children_create (child_count);
+ if (NULL == success_children)
goto out;
- for (i = 0; i < child_count; i++)
- child_success[i] = -1;
+ local->cont.lookup.success_children = success_children;
- local->cont.lookup.child_success = child_success;
+ local->fresh_children = afr_fresh_children_create (child_count);
+ if (NULL == local->fresh_children)
+ goto out;
local->cont.lookup.read_child = -1;
ret = 0;
@@ -1181,8 +1475,8 @@ afr_lookup (call_frame_t *frame, xlator_t *this,
if (ret == 0) {
/* lookup is a revalidate */
- local->read_child_index = afr_read_child (this,
- loc->inode);
+ local->read_child_index = afr_inode_get_read_ctx (this, loc->inode,
+ NULL);
} else {
LOCK (&priv->read_child_lock);
{
@@ -1611,7 +1905,7 @@ afr_fsync_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
local = frame->local;
- read_child = afr_read_child (this, local->fd->inode);
+ read_child = afr_inode_get_read_ctx (this, local->fd->inode, NULL);
LOCK (&frame->lock);
{
@@ -2533,6 +2827,25 @@ out:
}
int
+afr_forget (xlator_t *this, inode_t *inode)
+{
+ uint64_t ctx_addr = 0;
+ afr_inode_ctx_t *ctx = NULL;
+
+ inode_ctx_get (inode, this, &ctx_addr);
+
+ if (!ctx_addr)
+ goto out;
+
+ ctx = (afr_inode_ctx_t *)(long)ctx_addr;
+ if (ctx->fresh_children)
+ GF_FREE (ctx->fresh_children);
+ GF_FREE (ctx);
+out:
+ return 0;
+}
+
+int
afr_priv_dump (xlator_t *this)
{
afr_private_t *priv = NULL;
@@ -2759,6 +3072,16 @@ out:
int
AFR_LOCAL_INIT (afr_local_t *local, afr_private_t *priv)
{
+ local->op_ret = -1;
+ local->op_errno = EUCLEAN;
+ local->call_count = afr_up_children_count (priv->child_count,
+ priv->child_up);
+ if (local->call_count == 0) {
+ gf_log (THIS->name, GF_LOG_INFO, "no subvolumes up");
+ return -ENOTCONN;
+ }
+
+
local->child_up = GF_CALLOC (sizeof (*local->child_up),
priv->child_count,
gf_afr_mt_char);
@@ -2769,16 +3092,6 @@ AFR_LOCAL_INIT (afr_local_t *local, afr_private_t *priv)
memcpy (local->child_up, priv->child_up,
sizeof (*local->child_up) * priv->child_count);
- local->call_count = afr_up_children_count (priv->child_count,
- local->child_up);
- local->op_ret = -1;
- local->op_errno = EUCLEAN;
-
- if (local->call_count == 0) {
- gf_log (THIS->name, GF_LOG_INFO, "no subvolumes up");
- return -ENOTCONN;
- }
-
return 0;
}
@@ -2849,6 +3162,10 @@ afr_transaction_local_init (afr_local_t *local, afr_private_t *priv)
if (!local->pending)
goto out;
+ local->fresh_children = afr_fresh_children_create (priv->child_count);
+ if (!local->fresh_children)
+ goto out;
+
for (i = 0; i < priv->child_count; i++) {
local->pending[i] = GF_CALLOC (sizeof (*local->pending[i]),
3, /* data + metadata + entry */
@@ -2867,3 +3184,50 @@ afr_transaction_local_init (afr_local_t *local, afr_private_t *priv)
out:
return ret;
}
+
+void
+afr_reset_children (int32_t *fresh_children, int32_t child_count)
+{
+ unsigned int i = 0;
+ for (i = 0; i < child_count; i++)
+ fresh_children[i] = -1;
+}
+
+int32_t*
+afr_fresh_children_create (int32_t child_count)
+{
+ int32_t *fresh_children = NULL;
+ int i = 0;
+
+ GF_ASSERT (child_count > 0);
+
+ fresh_children = GF_CALLOC (child_count, sizeof (*fresh_children),
+ gf_afr_mt_int32_t);
+ if (NULL == fresh_children)
+ goto out;
+ for (i = 0; i < child_count; i++)
+ fresh_children[i] = -1;
+out:
+ return fresh_children;
+}
+
+void
+afr_fresh_children_add_child (int32_t *fresh_children, int32_t child,
+ int32_t child_count)
+{
+ gf_boolean_t child_found = _gf_false;
+ int i = 0;
+
+ for (i = 0; i < child_count; i++) {
+ if (fresh_children[i] == -1)
+ break;
+ if (fresh_children[i] == child) {
+ child_found = _gf_true;
+ break;
+ }
+ }
+ if (!child_found) {
+ GF_ASSERT (i < child_count);
+ fresh_children[i] = child;
+ }
+}
generated by cgit (git 2.34.1) at 2024-11-12 23:44:08 +0000