diff options
| -rw-r--r-- | xlators/cluster/afr/src/afr-common.c | 7 | ||||
| -rw-r--r-- | xlators/cluster/afr/src/afr-transaction.c | 78 | ||||
| -rw-r--r-- | xlators/cluster/afr/src/afr.h | 4 | ||||
| -rw-r--r-- | xlators/mgmt/glusterd/src/glusterd-volgen.c | 54 | 
4 files changed, 87 insertions, 56 deletions
diff --git a/xlators/cluster/afr/src/afr-common.c b/xlators/cluster/afr/src/afr-common.c index 89d964056a0..a9acb409490 100644 --- a/xlators/cluster/afr/src/afr-common.c +++ b/xlators/cluster/afr/src/afr-common.c @@ -2520,6 +2520,8 @@ __afr_fd_ctx_set (xlator_t *this, fd_t *fd)          INIT_LIST_HEAD (&fd_ctx->entries);          fd_ctx->call_child = -1; +        INIT_LIST_HEAD (&fd_ctx->eager_locked); +          ret = __fd_ctx_set (fd, this, (uint64_t)(long) fd_ctx);          if (ret)                  gf_log (this->name, GF_LOG_DEBUG, @@ -4086,8 +4088,9 @@ afr_transaction_local_init (afr_local_t *local, xlator_t *this)                                                             AFR_NUM_CHANGE_LOGS);          if (!local->transaction.txn_changelog)                  goto out; -        if (local->fd && (local->transaction.type == AFR_DATA_TRANSACTION)) -                local->transaction.eager_lock_on = priv->eager_lock; + +	INIT_LIST_HEAD (&local->transaction.eager_locked); +          ret = 0;  out:          return ret; diff --git a/xlators/cluster/afr/src/afr-transaction.c b/xlators/cluster/afr/src/afr-transaction.c index 502e1ed496f..644544abcc7 100644 --- a/xlators/cluster/afr/src/afr-transaction.c +++ b/xlators/cluster/afr/src/afr-transaction.c @@ -1647,6 +1647,17 @@ afr_transaction_resume (call_frame_t *frame, xlator_t *this)          int_lock = &local->internal_lock;          priv     = this->private; +	if (local->transaction.eager_lock_on) { +		/* We don't need to retain "local" in the +		   fd list anymore, writes to all subvols +		   are finished by now */ +		LOCK (&local->fd->lock); +		{ +			list_del_init (&local->transaction.eager_locked); +		} +		UNLOCK (&local->fd->lock); +	} +  	afr_restore_lk_owner (frame);          if (__fop_changelog_needed (frame, this)) { @@ -1681,6 +1692,71 @@ afr_transaction_fop_failed (call_frame_t *frame, xlator_t *this, int child_index                             child_index, local->transaction.type);  } + + +static gf_boolean_t +afr_locals_overlap (afr_local_t *local1, afr_local_t *local2) +{ +	uint64_t start1 = local1->transaction.start; +	uint64_t start2 = local2->transaction.start; +	uint64_t end1 = 0; +	uint64_t end2 = 0; + +	if (local1->transaction.len) +		end1 = start1 + local1->transaction.len - 1; +	else +		end1 = ULLONG_MAX; + +	if (local2->transaction.len) +		end2 = start2 + local2->transaction.len - 1; +	else +		end2 = ULLONG_MAX; + +	return ((end1 >= start2) && (end2 >= start1)); +} + + +void +afr_transaction_eager_lock_init (afr_local_t *local, xlator_t *this) +{ +	afr_private_t *priv = NULL; +	afr_fd_ctx_t  *fdctx = NULL; +	afr_local_t   *each = NULL; + +	priv = this->private; + +	if (!local->fd) +		return; + +	if (local->transaction.type != AFR_DATA_TRANSACTION) +		return; + +	if (!priv->eager_lock) +		return; + +	fdctx = afr_fd_ctx_get (local->fd, this); +	if (!fdctx) +		return; + +	LOCK (&local->fd->lock); +	{ +		list_for_each_entry (each, &fdctx->eager_locked, +				     transaction.eager_locked) { +			if (afr_locals_overlap (each, local)) { +				local->transaction.eager_lock_on = _gf_false; +				goto unlock; +			} +		} + +		local->transaction.eager_lock_on = _gf_true; +		list_add_tail (&local->transaction.eager_locked, +			       &fdctx->eager_locked); +	} +unlock: +	UNLOCK (&local->fd->lock); +} + +  int  afr_transaction (call_frame_t *frame, xlator_t *this, afr_transaction_type type)  { @@ -1700,6 +1776,8 @@ afr_transaction (call_frame_t *frame, xlator_t *this, afr_transaction_type type)              goto out;          } +	afr_transaction_eager_lock_init (local, this); +          if (local->fd && local->transaction.eager_lock_on)                  afr_set_lk_owner (frame, this, local->fd);          else diff --git a/xlators/cluster/afr/src/afr.h b/xlators/cluster/afr/src/afr.h index 24bd20f136b..387ed12ec2f 100644 --- a/xlators/cluster/afr/src/afr.h +++ b/xlators/cluster/afr/src/afr.h @@ -677,6 +677,7 @@ typedef struct _afr_local {  		   of the transaction frame */  		call_stub_t      *resume_stub; +		struct list_head  eager_locked;                  int32_t         **txn_changelog;//changelog after pre+post ops                  unsigned char   *pre_op; @@ -744,6 +745,9 @@ typedef struct {  	   (i.e, without O_SYNC or O_DSYNC)  	*/  	gf_boolean_t      witnessed_unstable_write; + +	/* list of frames currently in progress */ +	struct list_head  eager_locked;  } afr_fd_ctx_t; diff --git a/xlators/mgmt/glusterd/src/glusterd-volgen.c b/xlators/mgmt/glusterd/src/glusterd-volgen.c index 53963989a90..03bcb44ab54 100644 --- a/xlators/mgmt/glusterd/src/glusterd-volgen.c +++ b/xlators/mgmt/glusterd/src/glusterd-volgen.c @@ -3440,56 +3440,6 @@ out:          return ret;  } -int -validate_wb_eagerlock (glusterd_volinfo_t *volinfo, dict_t *val_dict, -                       char **op_errstr) -{ -        int          ret = -1; -        gf_boolean_t wb_val = _gf_false; -        gf_boolean_t el_val = _gf_false; -        char         msg[2048] = {0}; -        char         *wb_key = NULL; -        char         *el_key = NULL; - -        wb_key = "performance.write-behind"; -        el_key = "cluster.eager-lock"; -        ret = dict_get_str_boolean (val_dict, wb_key, -1); -        if (ret < 0) -                goto check_eager_lock; -        wb_val = ret; -        ret = glusterd_volinfo_get_boolean (volinfo, el_key); -        if (ret < 0) -                goto out; -        el_val = ret; -        goto done; - -check_eager_lock: -        ret = dict_get_str_boolean (val_dict, el_key, -1); -        if (ret < 0) { -                ret = 0; //Keys of intereset to this fn are not present. -                goto out; -        } -        el_val = ret; -        ret = glusterd_volinfo_get_boolean (volinfo, wb_key); -        if (ret < 0) -                goto out; -        wb_val = ret; -        goto done; - -done: -        ret = 0; -        if (!wb_val && el_val) { -                ret = -1; -                snprintf (msg, sizeof (msg), "%s off and %s on is not " -                          "valid configuration", wb_key, el_key); -                gf_log ("glusterd", GF_LOG_ERROR, "%s", msg); -                if (op_errstr) -                        *op_errstr = gf_strdup (msg); -                goto out; -        } -out: -        return ret; -}  int  validate_clientopts (glusterd_volinfo_t *volinfo, @@ -3650,10 +3600,6 @@ glusterd_validate_reconfopts (glusterd_volinfo_t *volinfo, dict_t *val_dict,                  goto out;          } -        ret = validate_wb_eagerlock (volinfo, val_dict, op_errstr); -        if (ret) -                goto out; -          ret = validate_clientopts (volinfo, val_dict, op_errstr);          if (ret) {                  gf_log ("", GF_LOG_DEBUG,  | 
