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-rw-r--r--xlators/cluster/afr/src/afr-common.c76
-rw-r--r--xlators/cluster/afr/src/afr-lk-common.c18
-rw-r--r--xlators/cluster/afr/src/afr-transaction.c4
-rw-r--r--xlators/cluster/afr/src/afr.h10
4 files changed, 102 insertions, 6 deletions
diff --git a/xlators/cluster/afr/src/afr-common.c b/xlators/cluster/afr/src/afr-common.c
index e0468a4..2702ed3 100644
--- a/xlators/cluster/afr/src/afr-common.c
+++ b/xlators/cluster/afr/src/afr-common.c
@@ -147,6 +147,7 @@ __afr_inode_ctx_get (xlator_t *this, inode_t *inode, afr_inode_ctx_t **ctx)
}
tmp_ctx->spb_choice = -1;
tmp_ctx->read_subvol = 0;
+ tmp_ctx->write_subvol = 0;
} else {
tmp_ctx = (afr_inode_ctx_t *) ctx_int;
}
@@ -214,7 +215,7 @@ __afr_set_in_flight_sb_status (xlator_t *this, afr_local_t *local,
if (ret < 0)
return ret;
- val = ctx->read_subvol;
+ val = ctx->write_subvol;
metadatamap_old = metadatamap = (val & 0x000000000000ffff);
datamap_old = datamap = (val & 0x00000000ffff0000) >> 16;
@@ -275,6 +276,7 @@ __afr_set_in_flight_sb_status (xlator_t *this, afr_local_t *local,
(((uint64_t) datamap) << 16) |
(((uint64_t) event) << 32);
+ ctx->write_subvol = val;
ctx->read_subvol = val;
return ret;
@@ -6562,3 +6564,75 @@ afr_serialize_xattrs_with_delimiter (call_frame_t *frame, xlator_t *this,
out:
return ret;
}
+
+int
+afr_write_subvol_set (call_frame_t *frame, xlator_t *this)
+{
+ afr_local_t *local = NULL;
+ afr_inode_ctx_t *ctx = NULL;
+ uint64_t val = 0;
+ uint64_t val1 = 0;
+ int ret = -1;
+
+ local = frame->local;
+ LOCK(&local->inode->lock);
+ {
+ ret = __afr_inode_ctx_get (this, local->inode, &ctx);
+ if (ret < 0) {
+ gf_msg (this->name, GF_LOG_ERROR, 0,
+ AFR_MSG_DICT_GET_FAILED,
+ "ERROR GETTING INODE CTX");
+ UNLOCK(&local->inode->lock);
+ return ret;
+ }
+
+ val = ctx->write_subvol;
+ /*
+ * We need to set the value of write_subvol to read_subvol in 2
+ * cases:
+ * 1. Initially when the value is 0. i.e., it's the first lock
+ * request.
+ * 2. If it's a metadata transaction. If metadata transactions
+ * comes in between data transactions and we have a brick
+ * disconnect, the next metadata transaction won't get the
+ * latest value of readables, since we do resetting of
+ * write_subvol in unlock code path only if it's a data
+ * transaction. To handle those scenarios we need to set the
+ * value of write_subvol to read_subvol in case of metadata
+ * transactions.
+ */
+ if (val == 0 ||
+ local->transaction.type == AFR_METADATA_TRANSACTION) {
+ val1 = ctx->read_subvol;
+ ctx->write_subvol = val1;
+ }
+ }
+ UNLOCK (&local->inode->lock);
+
+ return 0;
+}
+
+int
+afr_write_subvol_reset (call_frame_t *frame, xlator_t *this)
+{
+ afr_local_t *local = NULL;
+ afr_inode_ctx_t *ctx = NULL;
+ int ret = -1;
+
+ local = frame->local;
+ LOCK(&local->inode->lock);
+ {
+ ret = __afr_inode_ctx_get (this, local->inode, &ctx);
+ if (ret < 0) {
+ gf_msg (this->name, GF_LOG_ERROR, 0,
+ AFR_MSG_DICT_GET_FAILED,
+ "ERROR GETTING INODE CTX");
+ UNLOCK(&local->inode->lock);
+ return ret;
+ }
+ ctx->write_subvol = 0;
+ }
+ UNLOCK(&local->inode->lock);
+
+ return 0;
+}
diff --git a/xlators/cluster/afr/src/afr-lk-common.c b/xlators/cluster/afr/src/afr-lk-common.c
index 1f2a117..c17f60f 100644
--- a/xlators/cluster/afr/src/afr-lk-common.c
+++ b/xlators/cluster/afr/src/afr-lk-common.c
@@ -613,12 +613,16 @@ static int32_t
afr_unlock_common_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
int32_t op_ret, int32_t op_errno, dict_t *xdata)
{
- afr_local_t *local = NULL;
- afr_internal_lock_t *int_lock = NULL;
- int call_count = 0;
+ afr_local_t *local = NULL;
+ afr_internal_lock_t *int_lock = NULL;
+ afr_fd_ctx_t *fd_ctx = NULL;
+ afr_private_t *priv = NULL;
+ int call_count = 0;
+ int ret = 0;
local = frame->local;
int_lock = &local->internal_lock;
+ priv = this->private;
LOCK (&frame->lock);
{
@@ -629,11 +633,15 @@ afr_unlock_common_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
if (call_count == 0) {
gf_msg_trace (this->name, 0,
"All internal locks unlocked");
-
+ if (local->fd) {
+ fd_ctx = afr_fd_ctx_get (local->fd, this);
+ if (0 == AFR_COUNT (fd_ctx->lock_acquired, priv->child_count))
+ ret = afr_write_subvol_reset (frame, this);
+ }
int_lock->lock_cbk (frame, this);
}
- return 0;
+ return ret;
}
void
diff --git a/xlators/cluster/afr/src/afr-transaction.c b/xlators/cluster/afr/src/afr-transaction.c
index 791c70f..a04636f 100644
--- a/xlators/cluster/afr/src/afr-transaction.c
+++ b/xlators/cluster/afr/src/afr-transaction.c
@@ -1750,6 +1750,10 @@ afr_changelog_pre_op (call_frame_t *frame, xlator_t *this)
if (pre_nop)
goto next;
+ ret = afr_write_subvol_set (frame, this);
+ if (ret)
+ goto err;
+
if (!local->pre_op_compat) {
dict_copy (xdata_req, local->xdata_req);
goto next;
diff --git a/xlators/cluster/afr/src/afr.h b/xlators/cluster/afr/src/afr.h
index 2562566..b59b943 100644
--- a/xlators/cluster/afr/src/afr.h
+++ b/xlators/cluster/afr/src/afr.h
@@ -837,6 +837,7 @@ typedef struct _afr_local {
typedef struct _afr_inode_ctx {
uint64_t read_subvol;
+ uint64_t write_subvol;
int spb_choice;
gf_timer_t *timer;
gf_boolean_t need_refresh;
@@ -1264,4 +1265,13 @@ afr_serialize_xattrs_with_delimiter (call_frame_t *frame, xlator_t *this,
int32_t *serz_len, char delimiter);
gf_boolean_t
afr_is_symmetric_error (call_frame_t *frame, xlator_t *this);
+
+int
+__afr_inode_ctx_get (xlator_t *this, inode_t *inode, afr_inode_ctx_t **ctx);
+
+int
+afr_write_subvol_set (call_frame_t *frame, xlator_t *this);
+
+int
+afr_write_subvol_reset (call_frame_t *frame, xlator_t *this);
#endif /* __AFR_H__ */