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path: root/xlators/performance/quick-read/src/quick-read.c
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Diffstat (limited to 'xlators/performance/quick-read/src/quick-read.c')
-rw-r--r--xlators/performance/quick-read/src/quick-read.c77
1 files changed, 50 insertions, 27 deletions
diff --git a/xlators/performance/quick-read/src/quick-read.c b/xlators/performance/quick-read/src/quick-read.c
index e1e3c2d0af7..c3581783365 100644
--- a/xlators/performance/quick-read/src/quick-read.c
+++ b/xlators/performance/quick-read/src/quick-read.c
@@ -15,9 +15,9 @@
#include "upcall-utils.h"
qr_inode_t *qr_inode_ctx_get (xlator_t *this, inode_t *inode);
-void __qr_inode_prune (xlator_t *this, qr_inode_table_t *table,
- qr_inode_t *qr_inode);
+void __qr_inode_prune (xlator_t *this, qr_inode_table_t *table,
+ qr_inode_t *qr_inode, uint64_t gen);
int
__qr_inode_ctx_set (xlator_t *this, inode_t *inode, qr_inode_t *qr_inode)
@@ -103,7 +103,7 @@ qr_inode_ctx_get_or_new (xlator_t *this, inode_t *inode)
ret = __qr_inode_ctx_set (this, inode, qr_inode);
if (ret) {
- __qr_inode_prune (this, &priv->table, qr_inode);
+ __qr_inode_prune (this, &priv->table, qr_inode, ~0);
GF_FREE (qr_inode);
qr_inode = NULL;
}
@@ -192,7 +192,9 @@ qr_inode_set_priority (xlator_t *this, inode_t *inode, const char *path)
/* To be called with priv->table.lock held */
void
-__qr_inode_prune (xlator_t *this, qr_inode_table_t *table, qr_inode_t *qr_inode)
+
+__qr_inode_prune (xlator_t *this, qr_inode_table_t *table, qr_inode_t *qr_inode,
+ uint64_t gen)
{
qr_private_t *priv = NULL;
@@ -201,6 +203,10 @@ __qr_inode_prune (xlator_t *this, qr_inode_table_t *table, qr_inode_t *qr_inode)
GF_FREE (qr_inode->data);
qr_inode->data = NULL;
+ /* Set gen only with valid callers */
+ if (gen != ~0)
+ qr_inode->gen = gen;
+
if (!list_empty (&qr_inode->lru)) {
table->cache_used -= qr_inode->size;
qr_inode->size = 0;
@@ -215,7 +221,7 @@ __qr_inode_prune (xlator_t *this, qr_inode_table_t *table, qr_inode_t *qr_inode)
void
-qr_inode_prune (xlator_t *this, inode_t *inode)
+qr_inode_prune (xlator_t *this, inode_t *inode, uint64_t gen)
{
qr_private_t *priv = NULL;
qr_inode_table_t *table = NULL;
@@ -230,7 +236,7 @@ qr_inode_prune (xlator_t *this, inode_t *inode)
LOCK (&table->lock);
{
- __qr_inode_prune (this, table, qr_inode);
+ __qr_inode_prune (this, table, qr_inode, gen);
}
UNLOCK (&table->lock);
}
@@ -250,7 +256,7 @@ __qr_cache_prune (xlator_t *this, qr_inode_table_t *table, qr_conf_t *conf)
size_pruned += curr->size;
- __qr_inode_prune (this, table, curr);
+ __qr_inode_prune (this, table, curr, ~0);
if (table->cache_used < conf->cache_size)
return;
@@ -306,7 +312,7 @@ out:
void
qr_content_update (xlator_t *this, qr_inode_t *qr_inode, void *data,
- struct iatt *buf)
+ struct iatt *buf, uint64_t gen)
{
qr_private_t *priv = NULL;
qr_inode_table_t *table = NULL;
@@ -316,7 +322,12 @@ qr_content_update (xlator_t *this, qr_inode_t *qr_inode, void *data,
LOCK (&table->lock);
{
- __qr_inode_prune (this, table, qr_inode);
+ /* allow for rollover of frame->root->unique */
+ if (gen && qr_inode->gen && (qr_inode->gen >= gen))
+ goto unlock;
+
+ qr_inode->gen = gen;
+ __qr_inode_prune (this, table, qr_inode, gen);
qr_inode->data = data;
qr_inode->size = buf->ia_size;
@@ -330,6 +341,7 @@ qr_content_update (xlator_t *this, qr_inode_t *qr_inode, void *data,
__qr_inode_register (this, table, qr_inode);
}
+unlock:
UNLOCK (&table->lock);
qr_cache_prune (this);
@@ -352,7 +364,8 @@ qr_mtime_equal (qr_inode_t *qr_inode, struct iatt *buf)
void
-__qr_content_refresh (xlator_t *this, qr_inode_t *qr_inode, struct iatt *buf)
+__qr_content_refresh (xlator_t *this, qr_inode_t *qr_inode, struct iatt *buf,
+ uint64_t gen)
{
qr_private_t *priv = NULL;
qr_inode_table_t *table = NULL;
@@ -362,6 +375,12 @@ __qr_content_refresh (xlator_t *this, qr_inode_t *qr_inode, struct iatt *buf)
table = &priv->table;
conf = &priv->conf;
+ /* allow for rollover of frame->root->unique */
+ if (gen && qr_inode->gen && (qr_inode->gen >= gen))
+ goto done;
+
+ qr_inode->gen = gen;
+
if (qr_size_fits (conf, buf) && qr_mtime_equal (qr_inode, buf)) {
qr_inode->buf = *buf;
@@ -369,15 +388,17 @@ __qr_content_refresh (xlator_t *this, qr_inode_t *qr_inode, struct iatt *buf)
__qr_inode_register (this, table, qr_inode);
} else {
- __qr_inode_prune (this, table, qr_inode);
+ __qr_inode_prune (this, table, qr_inode, gen);
}
+done:
return;
}
void
-qr_content_refresh (xlator_t *this, qr_inode_t *qr_inode, struct iatt *buf)
+qr_content_refresh (xlator_t *this, qr_inode_t *qr_inode, struct iatt *buf,
+ uint64_t gen)
{
qr_private_t *priv = NULL;
qr_inode_table_t *table = NULL;
@@ -387,7 +408,7 @@ qr_content_refresh (xlator_t *this, qr_inode_t *qr_inode, struct iatt *buf)
LOCK (&table->lock);
{
- __qr_content_refresh (this, qr_inode, buf);
+ __qr_content_refresh (this, qr_inode, buf, gen);
}
UNLOCK (&table->lock);
}
@@ -431,17 +452,17 @@ qr_lookup_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
frame->local = NULL;
if (op_ret == -1) {
- qr_inode_prune (this, inode);
+ qr_inode_prune (this, inode, ~0);
goto out;
}
if (dict_get (xdata, GLUSTERFS_BAD_INODE)) {
- qr_inode_prune (this, inode);
+ qr_inode_prune (this, inode, frame->root->unique);
goto out;
}
if (dict_get (xdata, "sh-failed")) {
- qr_inode_prune (this, inode);
+ qr_inode_prune (this, inode, frame->root->unique);
goto out;
}
@@ -455,7 +476,8 @@ qr_lookup_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
GF_FREE (content);
goto out;
}
- qr_content_update (this, qr_inode, content, buf);
+ qr_content_update (this, qr_inode, content, buf,
+ frame->root->unique);
} else {
/* purge old content if necessary */
qr_inode = qr_inode_ctx_get (this, inode);
@@ -463,7 +485,7 @@ qr_lookup_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
/* usual path for large files */
goto out;
- qr_content_refresh (this, qr_inode, buf);
+ qr_content_refresh (this, qr_inode, buf, frame->root->unique);
}
out:
if (inode)
@@ -539,7 +561,8 @@ qr_readdirp_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
/* no harm */
continue;
- qr_content_refresh (this, qr_inode, &entry->d_stat);
+ qr_content_refresh (this, qr_inode, &entry->d_stat,
+ frame->root->unique);
}
unwind:
@@ -661,7 +684,7 @@ qr_writev (call_frame_t *frame, xlator_t *this, fd_t *fd, struct iovec *iov,
int count, off_t offset, uint32_t flags, struct iobref *iobref,
dict_t *xdata)
{
- qr_inode_prune (this, fd->inode);
+ qr_inode_prune (this, fd->inode, frame->root->unique);
STACK_WIND (frame, default_writev_cbk,
FIRST_CHILD (this), FIRST_CHILD (this)->fops->writev,
@@ -674,7 +697,7 @@ int
qr_truncate (call_frame_t *frame, xlator_t *this, loc_t *loc, off_t offset,
dict_t *xdata)
{
- qr_inode_prune (this, loc->inode);
+ qr_inode_prune (this, loc->inode, frame->root->unique);
STACK_WIND (frame, default_truncate_cbk,
FIRST_CHILD (this), FIRST_CHILD (this)->fops->truncate,
@@ -687,7 +710,7 @@ int
qr_ftruncate (call_frame_t *frame, xlator_t *this, fd_t *fd, off_t offset,
dict_t *xdata)
{
- qr_inode_prune (this, fd->inode);
+ qr_inode_prune (this, fd->inode, frame->root->unique);
STACK_WIND (frame, default_ftruncate_cbk,
FIRST_CHILD (this), FIRST_CHILD (this)->fops->ftruncate,
@@ -699,7 +722,7 @@ static int
qr_fallocate (call_frame_t *frame, xlator_t *this, fd_t *fd, int keep_size,
off_t offset, size_t len, dict_t *xdata)
{
- qr_inode_prune (this, fd->inode);
+ qr_inode_prune (this, fd->inode, frame->root->unique);
STACK_WIND (frame, default_fallocate_cbk,
FIRST_CHILD (this), FIRST_CHILD (this)->fops->fallocate,
@@ -711,7 +734,7 @@ static int
qr_discard (call_frame_t *frame, xlator_t *this, fd_t *fd, off_t offset,
size_t len, dict_t *xdata)
{
- qr_inode_prune (this, fd->inode);
+ qr_inode_prune (this, fd->inode, frame->root->unique);
STACK_WIND (frame, default_discard_cbk,
FIRST_CHILD (this), FIRST_CHILD (this)->fops->discard,
@@ -723,7 +746,7 @@ static int
qr_zerofill (call_frame_t *frame, xlator_t *this, fd_t *fd, off_t offset,
off_t len, dict_t *xdata)
{
- qr_inode_prune (this, fd->inode);
+ qr_inode_prune (this, fd->inode, frame->root->unique);
STACK_WIND (frame, default_zerofill_cbk,
FIRST_CHILD (this), FIRST_CHILD (this)->fops->zerofill,
@@ -753,7 +776,7 @@ qr_forget (xlator_t *this, inode_t *inode)
if (!qr_inode)
return 0;
- qr_inode_prune (this, inode);
+ qr_inode_prune (this, inode, ~0);
GF_FREE (qr_inode);
@@ -1236,7 +1259,7 @@ qr_invalidate (xlator_t *this, void *data)
ret = -1;
goto out;
}
- qr_inode_prune (this, inode);
+ qr_inode_prune (this, inode, ~0);
}
out:
generated by cgit (git 2.34.1) at 2024-05-29 01:33:24 +0000