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authorRaghavendra G <raghavendra@gluster.com>2009-10-08 06:21:27 +0000
committerAnand V. Avati <avati@dev.gluster.com>2009-10-09 00:49:03 -0700
commit7a4c856af87c024ee8e9ff0164e26e48876380d5 (patch)
treeb32f2f113df01ed7efd095624f5c8a1fb66c866f
parentb49ab8f21d69bf0ffb19f1837cf665a0d63ead7d (diff)
performance/stat-prefetch: implement sp_access
- sp_access should send lookup on the path if it is not already looked up. Signed-off-by: Anand V. Avati <avati@dev.gluster.com> BUG: 221 (stat prefetch implementation) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=221
-rw-r--r--xlators/performance/stat-prefetch/src/stat-prefetch.c79
1 files changed, 79 insertions, 0 deletions
diff --git a/xlators/performance/stat-prefetch/src/stat-prefetch.c b/xlators/performance/stat-prefetch/src/stat-prefetch.c
index d3cfb6080a7..fd6a020a4d8 100644
--- a/xlators/performance/stat-prefetch/src/stat-prefetch.c
+++ b/xlators/performance/stat-prefetch/src/stat-prefetch.c
@@ -2308,6 +2308,84 @@ out:
int32_t
+sp_access_helper (call_frame_t *frame, xlator_t *this, loc_t *loc, int32_t mask)
+{
+ uint64_t value = 0;
+ sp_inode_ctx_t *inode_ctx = NULL;
+ int32_t ret = 0, op_ret = -1, op_errno = -1;
+
+ ret = inode_ctx_get (loc->inode, this, &value);
+ if (ret == -1) {
+ gf_log (this->name, GF_LOG_DEBUG, "context not set in inode "
+ "(%p)", loc->inode);
+ op_errno = EINVAL;
+ goto unwind;
+ }
+
+ inode_ctx = (sp_inode_ctx_t *)(long) value;
+ GF_VALIDATE_OR_GOTO_WITH_ERROR (this->name, inode_ctx, unwind, op_errno,
+ EINVAL);
+
+ LOCK (&inode_ctx->lock);
+ {
+ op_ret = inode_ctx->op_ret;
+ op_errno = inode_ctx->op_errno;
+ }
+ UNLOCK (&inode_ctx->lock);
+
+ if (op_ret == -1) {
+ goto unwind;
+ }
+
+ STACK_WIND (frame, sp_err_cbk, FIRST_CHILD(this),
+ FIRST_CHILD(this)->fops->access, loc, mask);
+
+ return 0;
+
+unwind:
+ SP_STACK_UNWIND (frame, -1, op_errno);
+ return 0;
+}
+
+
+int32_t
+sp_access (call_frame_t *frame, xlator_t *this, loc_t *loc, int32_t mask)
+{
+ int32_t op_errno = -1;
+ call_stub_t *stub = NULL;
+ char can_wind = 0, need_lookup = 0, need_unwind = 1;
+
+ GF_VALIDATE_OR_GOTO_WITH_ERROR (this->name, loc, out, op_errno,
+ EINVAL);
+ GF_VALIDATE_OR_GOTO_WITH_ERROR (this->name, loc->inode, out,
+ op_errno, EINVAL);
+
+ stub = fop_access_stub (frame, sp_access_helper, loc, mask);
+ if (stub == NULL) {
+ op_errno = ENOMEM;
+ gf_log (this->name, GF_LOG_ERROR, "out of memory");
+ goto out;
+ }
+
+ sp_process_inode_ctx (frame, this, loc, stub, &need_unwind,
+ &need_lookup, &can_wind, &op_errno);
+
+out:
+ if (need_unwind) {
+ SP_STACK_UNWIND (frame, -1, op_errno);
+ } else if (need_lookup) {
+ STACK_WIND (frame, sp_lookup_cbk, FIRST_CHILD(this),
+ FIRST_CHILD(this)->fops->lookup, loc, NULL);
+ } else if (can_wind) {
+ STACK_WIND (frame, sp_err_cbk, FIRST_CHILD(this),
+ FIRST_CHILD(this)->fops->access, loc, mask);
+ }
+
+ return 0;
+}
+
+
+int32_t
sp_forget (xlator_t *this, inode_t *inode)
{
struct stat *buf = NULL;
@@ -2402,6 +2480,7 @@ struct xlator_fops fops = {
.fxattrop = sp_fxattrop,
.setattr = sp_setattr,
.stat = sp_stat,
+ .access = sp_access,
};
struct xlator_mops mops = {