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Diffstat (limited to 'xlators/cluster/afr/src/afr-lk-common.c')
-rw-r--r--xlators/cluster/afr/src/afr-lk-common.c184
1 files changed, 134 insertions, 50 deletions
diff --git a/xlators/cluster/afr/src/afr-lk-common.c b/xlators/cluster/afr/src/afr-lk-common.c
index c059a6b9e..157d54d42 100644
--- a/xlators/cluster/afr/src/afr-lk-common.c
+++ b/xlators/cluster/afr/src/afr-lk-common.c
@@ -555,6 +555,7 @@ afr_unlock_inodelk_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
int32_t op_ret, int32_t op_errno)
{
afr_local_t *local = NULL;
+ int child_index = (long) cookie;
local = frame->local;
@@ -568,6 +569,8 @@ afr_unlock_inodelk_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
local->loc.path, strerror (op_errno));
}
+ local->transaction.eager_lock[child_index] = 0;
+
afr_unlock_common_cbk (frame, cookie, this, op_ret, op_errno);
return 0;
@@ -581,8 +584,13 @@ afr_unlock_inodelk (call_frame_t *frame, xlator_t *this)
afr_local_t *local = NULL;
afr_private_t *priv = NULL;
struct gf_flock flock = {0,};
+ struct gf_flock full_flock = {0,};
+ struct gf_flock *flock_use = &flock;
int call_count = 0;
int i = 0;
+ int piggyback = 0;
+ afr_fd_ctx_t *fd_ctx = NULL;
+
local = frame->local;
int_lock = &local->internal_lock;
@@ -592,6 +600,8 @@ afr_unlock_inodelk (call_frame_t *frame, xlator_t *this)
flock.l_len = int_lock->lk_flock.l_len;
flock.l_type = F_UNLCK;
+ full_flock.l_type = F_UNLCK;
+
call_count = afr_locked_nodes_count (int_lock->inode_locked_nodes,
priv->child_count);
@@ -604,42 +614,70 @@ afr_unlock_inodelk (call_frame_t *frame, xlator_t *this)
goto out;
}
+ if (local->fd)
+ fd_ctx = afr_fd_ctx_get (local->fd, this);
+
for (i = 0; i < priv->child_count; i++) {
- if (int_lock->inode_locked_nodes[i] & LOCKED_YES) {
- if (local->fd) {
- afr_trace_inodelk_in (frame, AFR_INODELK_TRANSACTION,
- AFR_UNLOCK_OP, &flock, F_SETLK, i);
+ if ((int_lock->inode_locked_nodes[i] & LOCKED_YES)
+ != LOCKED_YES)
+ continue;
- STACK_WIND_COOKIE (frame, afr_unlock_inodelk_cbk,
- (void *) (long)i,
- priv->children[i],
- priv->children[i]->fops->finodelk,
- this->name, local->fd,
- F_SETLK, &flock);
+ if (local->fd) {
+ if (!local->transaction.eager_lock[i]) {
+ goto wind;
+ }
+
+ piggyback = 0;
+ flock_use = &full_flock;
+
+ LOCK (&local->fd->lock);
+ {
+ if (fd_ctx->lock_piggyback[i]) {
+ fd_ctx->lock_piggyback[i]--;
+ piggyback = 1;
+ } else {
+ fd_ctx->lock_acquired[i]--;
+ }
+ }
+ UNLOCK (&local->fd->lock);
+ if (piggyback) {
+ afr_unlock_inodelk_cbk (frame, (void *) (long) i,
+ this, 1, 0);
if (!--call_count)
break;
+ continue;
+ }
- } else {
- afr_trace_inodelk_in (frame, AFR_INODELK_TRANSACTION,
- AFR_UNLOCK_OP, &flock, F_SETLK, i);
+ wind:
+ afr_trace_inodelk_in (frame, AFR_INODELK_TRANSACTION,
+ AFR_UNLOCK_OP, flock_use, F_SETLK, i);
- STACK_WIND_COOKIE (frame, afr_unlock_inodelk_cbk,
- (void *) (long)i,
- priv->children[i],
- priv->children[i]->fops->inodelk,
- this->name, &local->loc,
- F_SETLK, &flock);
+ STACK_WIND_COOKIE (frame, afr_unlock_inodelk_cbk,
+ (void *) (long)i,
+ priv->children[i],
+ priv->children[i]->fops->finodelk,
+ this->name, local->fd,
+ F_SETLK, flock_use);
- if (!--call_count)
- break;
+ if (!--call_count)
+ break;
- }
+ } else {
+ afr_trace_inodelk_in (frame, AFR_INODELK_TRANSACTION,
+ AFR_UNLOCK_OP, &flock, F_SETLK, i);
- }
+ STACK_WIND_COOKIE (frame, afr_unlock_inodelk_cbk,
+ (void *) (long)i,
+ priv->children[i],
+ priv->children[i]->fops->inodelk,
+ this->name, &local->loc,
+ F_SETLK, &flock);
+ if (!--call_count)
+ break;
+ }
}
-
out:
return 0;
}
@@ -1288,6 +1326,7 @@ afr_nonblocking_inodelk_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
afr_private_t *priv = NULL;
int call_count = 0;
int child_index = (long) cookie;
+ afr_fd_ctx_t *fd_ctx = NULL;
local = frame->local;
int_lock = &local->internal_lock;
@@ -1303,7 +1342,7 @@ afr_nonblocking_inodelk_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
}
UNLOCK (&frame->lock);
- if (op_ret < 0 ) {
+ if (op_ret < 0) {
if (op_errno == ENOSYS) {
/* return ENOTSUP */
gf_log (this->name, GF_LOG_ERROR,
@@ -1315,10 +1354,27 @@ afr_nonblocking_inodelk_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
int_lock->lock_op_errno = op_errno;
local->op_errno = op_errno;
}
- } else if (op_ret == 0) {
+ } else {
int_lock->inode_locked_nodes[child_index]
|= LOCKED_YES;
int_lock->inodelk_lock_count++;
+
+ if (priv->eager_lock && local->fd) {
+ fd_ctx = afr_fd_ctx_get (local->fd, this);
+ local->transaction.eager_lock[child_index] = 1;
+ /* piggybacked */
+
+ if (op_ret == 1) {
+ /* piggybacked */
+ } else if (op_ret == 0) {
+ /* lock acquired from server */
+ LOCK (&local->fd->lock);
+ {
+ fd_ctx->lock_acquired[child_index]++;
+ }
+ UNLOCK (&local->fd->lock);
+ }
+ }
}
if (call_count == 0) {
@@ -1358,6 +1414,9 @@ afr_nonblocking_inodelk (call_frame_t *frame, xlator_t *this)
int i = 0;
int ret = 0;
struct gf_flock flock = {0,};
+ struct gf_flock full_flock = {0,};
+ struct gf_flock *flock_use = &flock;
+ int piggyback = 0;
local = frame->local;
int_lock = &local->internal_lock;
@@ -1367,6 +1426,8 @@ afr_nonblocking_inodelk (call_frame_t *frame, xlator_t *this)
flock.l_len = int_lock->lk_flock.l_len;
flock.l_type = int_lock->lk_flock.l_type;
+ full_flock.l_type = int_lock->lk_flock.l_type;
+
initialize_inodelk_variables (frame, this);
if (local->fd) {
@@ -1398,49 +1459,72 @@ afr_nonblocking_inodelk (call_frame_t *frame, xlator_t *this)
goto out;
}
+ frame->root->lk_owner = (long) (local->fd);
+
/* Send non-blocking inodelk calls only on up children
and where the fd has been opened */
for (i = 0; i < priv->child_count; i++) {
- if (local->child_up[i] && fd_ctx->opened_on[i]) {
- afr_trace_inodelk_in (frame, AFR_INODELK_NB_TRANSACTION,
- AFR_LOCK_OP, &flock, F_SETLK, i);
+ if (!local->child_up[i] || !fd_ctx->opened_on[i])
+ continue;
- STACK_WIND_COOKIE (frame, afr_nonblocking_inodelk_cbk,
- (void *) (long) i,
- priv->children[i],
- priv->children[i]->fops->finodelk,
- this->name, local->fd,
- F_SETLK, &flock);
+ if (!priv->eager_lock)
+ goto wind;
+
+ flock_use = &full_flock;
+ piggyback = 0;
+
+ LOCK (&local->fd->lock);
+ {
+ if (fd_ctx->lock_acquired[i]) {
+ fd_ctx->lock_piggyback[i]++;
+ piggyback = 1;
+ }
+ }
+ UNLOCK (&local->fd->lock);
+ if (piggyback) {
+ /* (op_ret == 1) => indicate piggybacked lock */
+ afr_nonblocking_inodelk_cbk (frame, (void *) (long) i,
+ this, 1, 0);
if (!--call_count)
break;
-
+ continue;
}
+ wind:
+ afr_trace_inodelk_in (frame, AFR_INODELK_NB_TRANSACTION,
+ AFR_LOCK_OP, flock_use, F_SETLK, i);
+ STACK_WIND_COOKIE (frame, afr_nonblocking_inodelk_cbk,
+ (void *) (long) i,
+ priv->children[i],
+ priv->children[i]->fops->finodelk,
+ this->name, local->fd,
+ F_SETLK, flock_use);
+
+ if (!--call_count)
+ break;
}
} else {
call_count = internal_lock_count (frame, this, NULL);
int_lock->lk_call_count = call_count;
for (i = 0; i < priv->child_count; i++) {
- if (local->child_up[i]) {
- afr_trace_inodelk_in (frame, AFR_INODELK_NB_TRANSACTION,
- AFR_LOCK_OP, &flock, F_SETLK, i);
+ if (!local->child_up[i])
+ continue;
+ afr_trace_inodelk_in (frame, AFR_INODELK_NB_TRANSACTION,
+ AFR_LOCK_OP, &flock, F_SETLK, i);
- STACK_WIND_COOKIE (frame, afr_nonblocking_inodelk_cbk,
- (void *) (long) i,
- priv->children[i],
- priv->children[i]->fops->inodelk,
- this->name, &local->loc,
- F_SETLK, &flock);
-
- if (!--call_count)
- break;
+ STACK_WIND_COOKIE (frame, afr_nonblocking_inodelk_cbk,
+ (void *) (long) i,
+ priv->children[i],
+ priv->children[i]->fops->inodelk,
+ this->name, &local->loc,
+ F_SETLK, &flock);
- }
+ if (!--call_count)
+ break;
}
}
-
out:
return ret;
}
generated by cgit (git 2.34.1) at 2024-05-20 20:55:36 +0000