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-rw-r--r--xlators/performance/stat-prefetch/src/stat-prefetch.c210
-rw-r--r--xlators/performance/stat-prefetch/src/stat-prefetch.h15
2 files changed, 203 insertions, 22 deletions
diff --git a/xlators/performance/stat-prefetch/src/stat-prefetch.c b/xlators/performance/stat-prefetch/src/stat-prefetch.c
index d74316bdc72..d956eeb39b1 100644
--- a/xlators/performance/stat-prefetch/src/stat-prefetch.c
+++ b/xlators/performance/stat-prefetch/src/stat-prefetch.c
@@ -18,9 +18,6 @@
*/
#include "stat-prefetch.h"
-#include "locking.h"
-#include "inode.h"
-#include <libgen.h>
#define GF_SP_CACHE_BUCKETS 4096
@@ -370,16 +367,6 @@ unlock:
int32_t
-sp_lookup_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
- int32_t op_ret, int32_t op_errno, inode_t *inode,
- struct stat *buf, dict_t *dict)
-{
- SP_STACK_UNWIND (frame, op_ret, op_errno, inode, buf, dict);
- return 0;
-}
-
-
-int32_t
sp_get_ancestors (char *path, char **parent, char **grand_parent)
{
int32_t ret = -1, i = 0;
@@ -477,16 +464,170 @@ sp_is_empty (dict_t *this, char *key, data_t *value, void *data)
int32_t
+sp_lookup_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
+ int32_t op_ret, int32_t op_errno, inode_t *inode,
+ struct stat *buf, dict_t *dict)
+{
+ sp_inode_ctx_t *inode_ctx = NULL;
+ uint64_t value = 0;
+ int ret = 0;
+ struct list_head waiting_ops = {0, };
+ call_stub_t *stub = NULL, *tmp = NULL;
+ sp_local_t *local = NULL;
+ sp_cache_t *cache = NULL;
+
+ INIT_LIST_HEAD (&waiting_ops);
+
+ local = frame->local;
+ if (local == NULL) {
+ op_ret = -1;
+ op_errno = EINVAL;
+ } else if (op_ret == -1) {
+ cache = sp_get_cache_inode (this, local->loc.parent,
+ frame->root->pid);
+
+ if (cache) {
+ sp_cache_remove_entry (cache, (char *)local->loc.name,
+ 0);
+ }
+ }
+
+ ret = inode_ctx_get (inode, this, &value);
+ if (ret == 0) {
+ inode_ctx = (sp_inode_ctx_t *)(long)value;
+ if (inode_ctx == NULL) {
+ op_ret = -1;
+ op_errno = EINVAL;
+ goto out;
+ }
+
+ LOCK (&inode_ctx->lock);
+ {
+ inode_ctx->op_ret = op_ret;
+ inode_ctx->op_errno = op_errno;
+ inode_ctx->looked_up = 1;
+ inode_ctx->lookup_in_progress = 0;
+ list_splice_init (&inode_ctx->waiting_ops,
+ &waiting_ops);
+ }
+ UNLOCK (&inode_ctx->lock);
+
+ list_for_each_entry_safe (stub, tmp, &waiting_ops, list) {
+ list_del_init (&stub->list);
+ call_resume (stub);
+ }
+ } else {
+ op_errno = EINVAL;
+ op_ret = -1;
+ }
+
+out:
+ if ((local != NULL) && (local->is_lookup)) {
+ SP_STACK_UNWIND (frame, op_ret, op_errno, inode, buf, dict);
+ }
+
+ return 0;
+}
+
+
+void
+sp_inode_ctx_free (xlator_t *this, sp_inode_ctx_t *ctx)
+{
+ call_stub_t *stub = NULL, *tmp = NULL;
+
+ if (ctx == NULL) {
+ goto out;
+ }
+
+ LOCK (&ctx->lock);
+ {
+ if (!list_empty (&ctx->waiting_ops)) {
+ gf_log (this->name, GF_LOG_CRITICAL, "inode ctx is "
+ "being freed even when there are file "
+ "operations waiting for lookup-behind to "
+ "complete. The operations in the waiting list "
+ "are:");
+ list_for_each_entry_safe (stub, tmp, &ctx->waiting_ops,
+ list) {
+ gf_log (this->name, GF_LOG_CRITICAL,
+ "OP (%d)", stub->fop);
+
+ list_del_init (&stub->list);
+ call_stub_destroy (stub);
+ }
+ }
+ }
+ UNLOCK (&ctx->lock);
+
+ LOCK_DESTROY (&ctx->lock);
+ FREE (ctx);
+
+out:
+ return;
+}
+
+
+sp_inode_ctx_t *
+sp_inode_ctx_init ()
+{
+ sp_inode_ctx_t *inode_ctx = NULL;
+
+ inode_ctx = CALLOC (1, sizeof (*inode_ctx));
+ if (inode_ctx == NULL) {
+ goto out;
+ }
+
+ LOCK_INIT (&inode_ctx->lock);
+ INIT_LIST_HEAD (&inode_ctx->waiting_ops);
+
+out:
+ return inode_ctx;
+}
+
+/*
+ * TODO: implement sending lookups for every fop done on this path. As of now
+ * lookup on the path is sent only for the first fop on this path.
+ */
+
+
+int32_t
sp_lookup (call_frame_t *frame, xlator_t *this, loc_t *loc, dict_t *xattr_req)
{
- gf_dirent_t dirent;
- int32_t ret = -1, op_ret = -1, op_errno = EINVAL;
- sp_cache_t *cache = NULL;
- struct stat *postparent = NULL, *buf = NULL;
- char entry_cached = 0;
- char xattr_req_empty = 1;
+ gf_dirent_t dirent;
+ int32_t ret = -1, op_ret = -1, op_errno = EINVAL;
+ sp_cache_t *cache = NULL;
+ struct stat *buf = NULL;
+ char entry_cached = 0;
+ char xattr_req_empty = 1;
+ sp_inode_ctx_t *inode_ctx = NULL;
+ uint64_t value = 0;
+ sp_local_t *local = NULL;
+
+ if (loc == NULL || loc->inode == NULL) {
+ goto unwind;
+ }
+
+ LOCK (&loc->inode->lock);
+ {
+ ret = __inode_ctx_get (loc->inode, this, &value);
+ if (ret == 0) {
+ inode_ctx = (sp_inode_ctx_t *)(long)value;
+ } else {
+ inode_ctx = sp_inode_ctx_init ();
+ if (inode_ctx != NULL) {
+ ret = __inode_ctx_put (loc->inode, this,
+ (long)inode_ctx);
+ if (ret == -1) {
+ sp_inode_ctx_free (this, inode_ctx);
+ inode_ctx = NULL;
+ }
+ }
+ }
+ }
+ UNLOCK (&loc->inode->lock);
- if (loc == NULL) {
+ if (inode_ctx == NULL) {
+ op_errno = ENOMEM;
goto unwind;
}
@@ -530,6 +671,32 @@ wind:
if (cache) {
cache->hits++;
}
+ LOCK (&inode_ctx->lock);
+ {
+ if (!(inode_ctx->looked_up
+ || inode_ctx->lookup_in_progress)) {
+ inode_ctx->lookup_in_progress = 1;
+ }
+ }
+ UNLOCK (&inode_ctx->lock);
+
+ op_errno = ENOMEM;
+ local = CALLOC (1, sizeof (*local));
+ GF_VALIDATE_OR_GOTO_WITH_ERROR (this->name, local,
+ unwind, ENOMEM);
+ op_errno = 0;
+
+ frame->local = local;
+
+ ret = loc_copy (&local->loc, loc);
+ if (ret == -1) {
+ op_errno = errno;
+ gf_log (this->name, GF_LOG_ERROR, "%s",
+ strerror (op_errno));
+ goto unwind;
+ }
+
+ local->is_lookup = 1;
} else {
if (cache) {
cache->miss++;
@@ -542,8 +709,7 @@ wind:
}
unwind:
- SP_STACK_UNWIND (frame, op_ret, op_errno, loc->inode, buf, postparent,
- NULL);
+ SP_STACK_UNWIND (frame, op_ret, op_errno, loc->inode, buf, NULL);
return 0;
}
diff --git a/xlators/performance/stat-prefetch/src/stat-prefetch.h b/xlators/performance/stat-prefetch/src/stat-prefetch.h
index dd6b067c5bd..068ea7dfe10 100644
--- a/xlators/performance/stat-prefetch/src/stat-prefetch.h
+++ b/xlators/performance/stat-prefetch/src/stat-prefetch.h
@@ -30,6 +30,10 @@
#include "xlator.h"
#include "rbthash.h"
#include "hashfn.h"
+#include "call-stub.h"
+#include "locking.h"
+#include "inode.h"
+#include <libgen.h>
struct sp_cache {
rbthash_table_t *table;
@@ -55,9 +59,20 @@ struct sp_fd_ctx {
};
typedef struct sp_fd_ctx sp_fd_ctx_t;
+struct sp_inode_ctx {
+ char looked_up;
+ char lookup_in_progress;
+ int32_t op_ret;
+ int32_t op_errno;
+ gf_lock_t lock;
+ struct list_head waiting_ops;
+};
+typedef struct sp_inode_ctx sp_inode_ctx_t;
+
struct sp_local {
loc_t loc;
fd_t *fd;
+ char is_lookup;
};
typedef struct sp_local sp_local_t;
generated by cgit (git 2.34.1) at 2024-11-14 01:30:36 +0000