summaryrefslogtreecommitdiffstats
path: root/xlators/performance/read-ahead/src/page.c
diff options
context:
space:
mode:
Diffstat (limited to 'xlators/performance/read-ahead/src/page.c')
-rw-r--r--xlators/performance/read-ahead/src/page.c574
1 files changed, 287 insertions, 287 deletions
diff --git a/xlators/performance/read-ahead/src/page.c b/xlators/performance/read-ahead/src/page.c
index 925bc253d..d41098651 100644
--- a/xlators/performance/read-ahead/src/page.c
+++ b/xlators/performance/read-ahead/src/page.c
@@ -32,81 +32,81 @@
ra_page_t *
ra_page_get (ra_file_t *file, off_t offset)
{
- ra_page_t *page = NULL;
- off_t rounded_offset = 0;
+ ra_page_t *page = NULL;
+ off_t rounded_offset = 0;
- page = file->pages.next;
- rounded_offset = floor (offset, file->page_size);
+ page = file->pages.next;
+ rounded_offset = floor (offset, file->page_size);
- while (page != &file->pages && page->offset < rounded_offset)
- page = page->next;
+ while (page != &file->pages && page->offset < rounded_offset)
+ page = page->next;
- if (page == &file->pages || page->offset != rounded_offset)
- page = NULL;
+ if (page == &file->pages || page->offset != rounded_offset)
+ page = NULL;
- return page;
+ return page;
}
ra_page_t *
ra_page_create (ra_file_t *file, off_t offset)
{
- ra_page_t *page = NULL;
- off_t rounded_offset = 0;
- ra_page_t *newpage = NULL;
+ ra_page_t *page = NULL;
+ off_t rounded_offset = 0;
+ ra_page_t *newpage = NULL;
- page = file->pages.next;
- rounded_offset = floor (offset, file->page_size);
+ page = file->pages.next;
+ rounded_offset = floor (offset, file->page_size);
- while (page != &file->pages && page->offset < rounded_offset)
- page = page->next;
+ while (page != &file->pages && page->offset < rounded_offset)
+ page = page->next;
- if (page == &file->pages || page->offset != rounded_offset) {
- newpage = GF_CALLOC (1, sizeof (*newpage),
+ if (page == &file->pages || page->offset != rounded_offset) {
+ newpage = GF_CALLOC (1, sizeof (*newpage),
gf_ra_mt_ra_page_t);
- if (!newpage)
- return NULL;
+ if (!newpage)
+ return NULL;
- newpage->offset = rounded_offset;
- newpage->prev = page->prev;
- newpage->next = page;
- newpage->file = file;
- page->prev->next = newpage;
- page->prev = newpage;
+ newpage->offset = rounded_offset;
+ newpage->prev = page->prev;
+ newpage->next = page;
+ newpage->file = file;
+ page->prev->next = newpage;
+ page->prev = newpage;
- page = newpage;
- }
+ page = newpage;
+ }
- return page;
+ return page;
}
void
ra_wait_on_page (ra_page_t *page, call_frame_t *frame)
{
- ra_waitq_t *waitq = NULL;
- ra_local_t *local = NULL;
+ ra_waitq_t *waitq = NULL;
+ ra_local_t *local = NULL;
- local = frame->local;
- waitq = GF_CALLOC (1, sizeof (*waitq),
+ local = frame->local;
+ waitq = GF_CALLOC (1, sizeof (*waitq),
gf_ra_mt_ra_waitq_t);
- if (!waitq) {
- gf_log (frame->this->name, GF_LOG_ERROR,
- "out of memory");
+ if (!waitq) {
+ gf_log (frame->this->name, GF_LOG_ERROR,
+ "out of memory");
local->op_ret = -1;
local->op_errno = ENOMEM;
goto out;
- }
+ }
- waitq->data = frame;
- waitq->next = page->waitq;
- page->waitq = waitq;
+ waitq->data = frame;
+ waitq->next = page->waitq;
+ page->waitq = waitq;
- ra_local_lock (local);
- {
- local->wait_count++;
- }
- ra_local_unlock (local);
+ ra_local_lock (local);
+ {
+ local->wait_count++;
+ }
+ ra_local_unlock (local);
out:
return;
@@ -116,112 +116,112 @@ out:
void
ra_waitq_return (ra_waitq_t *waitq)
{
- ra_waitq_t *trav = NULL;
- ra_waitq_t *next = NULL;
- call_frame_t *frame = NULL;
+ ra_waitq_t *trav = NULL;
+ ra_waitq_t *next = NULL;
+ call_frame_t *frame = NULL;
- for (trav = waitq; trav; trav = next) {
- next = trav->next;
+ for (trav = waitq; trav; trav = next) {
+ next = trav->next;
- frame = trav->data;
- ra_frame_return (frame);
- GF_FREE (trav);
- }
+ frame = trav->data;
+ ra_frame_return (frame);
+ GF_FREE (trav);
+ }
}
int
ra_fault_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
- int32_t op_ret, int32_t op_errno, struct iovec *vector,
- int32_t count, struct iatt *stbuf, struct iobref *iobref)
+ int32_t op_ret, int32_t op_errno, struct iovec *vector,
+ int32_t count, struct iatt *stbuf, struct iobref *iobref)
{
- ra_local_t *local = NULL;
- off_t pending_offset = 0;
- ra_file_t *file = NULL;
- ra_page_t *page = NULL;
- ra_waitq_t *waitq = NULL;
- fd_t *fd = NULL;
- uint64_t tmp_file = 0;
-
- local = frame->local;
- fd = local->fd;
-
- fd_ctx_get (fd, this, &tmp_file);
-
- file = (ra_file_t *)(long)tmp_file;
- pending_offset = local->pending_offset;
-
- ra_file_lock (file);
- {
- if (op_ret >= 0)
- file->stbuf = *stbuf;
-
- if (op_ret < 0) {
- page = ra_page_get (file, pending_offset);
- if (page)
- waitq = ra_page_error (page, op_ret, op_errno);
- goto unlock;
- }
-
- page = ra_page_get (file, pending_offset);
- if (!page) {
- gf_log (this->name, GF_LOG_DEBUG,
- "wasted copy: %"PRId64"[+%"PRId64"] file=%p",
- pending_offset, file->page_size, file);
- goto unlock;
- }
-
- if (page->vector) {
- iobref_unref (page->iobref);
- GF_FREE (page->vector);
- }
-
- page->vector = iov_dup (vector, count);
+ ra_local_t *local = NULL;
+ off_t pending_offset = 0;
+ ra_file_t *file = NULL;
+ ra_page_t *page = NULL;
+ ra_waitq_t *waitq = NULL;
+ fd_t *fd = NULL;
+ uint64_t tmp_file = 0;
+
+ local = frame->local;
+ fd = local->fd;
+
+ fd_ctx_get (fd, this, &tmp_file);
+
+ file = (ra_file_t *)(long)tmp_file;
+ pending_offset = local->pending_offset;
+
+ ra_file_lock (file);
+ {
+ if (op_ret >= 0)
+ file->stbuf = *stbuf;
+
+ if (op_ret < 0) {
+ page = ra_page_get (file, pending_offset);
+ if (page)
+ waitq = ra_page_error (page, op_ret, op_errno);
+ goto unlock;
+ }
+
+ page = ra_page_get (file, pending_offset);
+ if (!page) {
+ gf_log (this->name, GF_LOG_DEBUG,
+ "wasted copy: %"PRId64"[+%"PRId64"] file=%p",
+ pending_offset, file->page_size, file);
+ goto unlock;
+ }
+
+ if (page->vector) {
+ iobref_unref (page->iobref);
+ GF_FREE (page->vector);
+ }
+
+ page->vector = iov_dup (vector, count);
if (page->vector == NULL) {
waitq = ra_page_error (page, -1, ENOMEM);
goto unlock;
}
- page->count = count;
- page->iobref = iobref_ref (iobref);
- page->ready = 1;
+ page->count = count;
+ page->iobref = iobref_ref (iobref);
+ page->ready = 1;
- page->size = iov_length (vector, count);
+ page->size = iov_length (vector, count);
- waitq = ra_page_wakeup (page);
- }
+ waitq = ra_page_wakeup (page);
+ }
unlock:
- ra_file_unlock (file);
+ ra_file_unlock (file);
- ra_waitq_return (waitq);
+ ra_waitq_return (waitq);
- fd_unref (local->fd);
+ fd_unref (local->fd);
- GF_FREE (frame->local);
- frame->local = NULL;
+ GF_FREE (frame->local);
+ frame->local = NULL;
- STACK_DESTROY (frame->root);
- return 0;
+ STACK_DESTROY (frame->root);
+ return 0;
}
void
ra_page_fault (ra_file_t *file, call_frame_t *frame, off_t offset)
{
- call_frame_t *fault_frame = NULL;
- ra_local_t *fault_local = NULL;
- ra_page_t *page = NULL;
- ra_waitq_t *waitq = NULL;
- int32_t op_ret = -1, op_errno = -1;
+ call_frame_t *fault_frame = NULL;
+ ra_local_t *fault_local = NULL;
+ ra_page_t *page = NULL;
+ ra_waitq_t *waitq = NULL;
+ int32_t op_ret = -1, op_errno = -1;
- fault_frame = copy_frame (frame);
+ fault_frame = copy_frame (frame);
if (fault_frame == NULL) {
op_ret = -1;
op_errno = ENOMEM;
goto err;
}
- fault_local = GF_CALLOC (1, sizeof (ra_local_t),
+ fault_local = GF_CALLOC (1, sizeof (ra_local_t),
gf_ra_mt_ra_local_t);
if (fault_local == NULL) {
STACK_DESTROY (fault_frame->root);
@@ -230,18 +230,18 @@ ra_page_fault (ra_file_t *file, call_frame_t *frame, off_t offset)
goto err;
}
- fault_frame->local = fault_local;
- fault_local->pending_offset = offset;
- fault_local->pending_size = file->page_size;
+ fault_frame->local = fault_local;
+ fault_local->pending_offset = offset;
+ fault_local->pending_size = file->page_size;
- fault_local->fd = fd_ref (file->fd);
+ fault_local->fd = fd_ref (file->fd);
- STACK_WIND (fault_frame, ra_fault_cbk,
- FIRST_CHILD (fault_frame->this),
- FIRST_CHILD (fault_frame->this)->fops->readv,
- file->fd, file->page_size, offset);
+ STACK_WIND (fault_frame, ra_fault_cbk,
+ FIRST_CHILD (fault_frame->this),
+ FIRST_CHILD (fault_frame->this)->fops->readv,
+ file->fd, file->page_size, offset);
- return;
+ return;
err:
ra_file_lock (file);
@@ -252,7 +252,7 @@ err:
op_errno);
}
ra_file_unlock (file);
-
+
if (waitq != NULL) {
ra_waitq_return (waitq);
}
@@ -261,54 +261,54 @@ err:
void
ra_frame_fill (ra_page_t *page, call_frame_t *frame)
{
- ra_local_t *local = NULL;
- ra_fill_t *fill = NULL;
- off_t src_offset = 0;
- off_t dst_offset = 0;
- ssize_t copy_size = 0;
- ra_fill_t *new = NULL;
-
- local = frame->local;
- fill = &local->fill;
-
- if (local->op_ret != -1 && page->size) {
- if (local->offset > page->offset)
- src_offset = local->offset - page->offset;
- else
- dst_offset = page->offset - local->offset;
-
- copy_size = min (page->size - src_offset,
- local->size - dst_offset);
-
- if (copy_size < 0) {
- /* if page contains fewer bytes and the required offset
- is beyond the page size in the page */
- copy_size = src_offset = 0;
- }
-
- fill = fill->next;
- while (fill != &local->fill) {
- if (fill->offset > page->offset) {
- break;
- }
- fill = fill->next;
- }
-
- new = GF_CALLOC (1, sizeof (*new),
- gf_ra_mt_ra_fill_t);
+ ra_local_t *local = NULL;
+ ra_fill_t *fill = NULL;
+ off_t src_offset = 0;
+ off_t dst_offset = 0;
+ ssize_t copy_size = 0;
+ ra_fill_t *new = NULL;
+
+ local = frame->local;
+ fill = &local->fill;
+
+ if (local->op_ret != -1 && page->size) {
+ if (local->offset > page->offset)
+ src_offset = local->offset - page->offset;
+ else
+ dst_offset = page->offset - local->offset;
+
+ copy_size = min (page->size - src_offset,
+ local->size - dst_offset);
+
+ if (copy_size < 0) {
+ /* if page contains fewer bytes and the required offset
+ is beyond the page size in the page */
+ copy_size = src_offset = 0;
+ }
+
+ fill = fill->next;
+ while (fill != &local->fill) {
+ if (fill->offset > page->offset) {
+ break;
+ }
+ fill = fill->next;
+ }
+
+ new = GF_CALLOC (1, sizeof (*new),
+ gf_ra_mt_ra_fill_t);
if (new == NULL) {
local->op_ret = -1;
local->op_errno = ENOMEM;
goto out;
}
- new->offset = page->offset;
- new->size = copy_size;
- new->iobref = iobref_ref (page->iobref);
- new->count = iov_subset (page->vector, page->count,
- src_offset, src_offset+copy_size,
- NULL);
- new->vector = GF_CALLOC (new->count, sizeof (struct iovec),
+ new->offset = page->offset;
+ new->size = copy_size;
+ new->iobref = iobref_ref (page->iobref);
+ new->count = iov_subset (page->vector, page->count,
+ src_offset, src_offset+copy_size,
+ NULL);
+ new->vector = GF_CALLOC (new->count, sizeof (struct iovec),
gf_ra_mt_iovec);
if (new->vector == NULL) {
local->op_ret = -1;
@@ -317,17 +317,17 @@ ra_frame_fill (ra_page_t *page, call_frame_t *frame)
goto out;
}
- new->count = iov_subset (page->vector, page->count,
- src_offset, src_offset+copy_size,
- new->vector);
+ new->count = iov_subset (page->vector, page->count,
+ src_offset, src_offset+copy_size,
+ new->vector);
- new->next = fill;
- new->prev = new->next->prev;
- new->next->prev = new;
- new->prev->next = new;
+ new->next = fill;
+ new->prev = new->next->prev;
+ new->next->prev = new;
+ new->prev->next = new;
- local->op_ret += copy_size;
- }
+ local->op_ret += copy_size;
+ }
out:
return;
@@ -337,34 +337,34 @@ out:
void
ra_frame_unwind (call_frame_t *frame)
{
- ra_local_t *local = NULL;
- ra_fill_t *fill = NULL;
- int32_t count = 0;
- struct iovec *vector;
- int32_t copied = 0;
- struct iobref *iobref = NULL;
- ra_fill_t *next = NULL;
- fd_t *fd = NULL;
- ra_file_t *file = NULL;
- uint64_t tmp_file = 0;
-
- local = frame->local;
- fill = local->fill.next;
-
- iobref = iobref_new ();
+ ra_local_t *local = NULL;
+ ra_fill_t *fill = NULL;
+ int32_t count = 0;
+ struct iovec *vector = NULL;
+ int32_t copied = 0;
+ struct iobref *iobref = NULL;
+ ra_fill_t *next = NULL;
+ fd_t *fd = NULL;
+ ra_file_t *file = NULL;
+ uint64_t tmp_file = 0;
+
+ local = frame->local;
+ fill = local->fill.next;
+
+ iobref = iobref_new ();
if (iobref == NULL) {
local->op_ret = -1;
local->op_errno = ENOMEM;
}
- frame->local = NULL;
+ frame->local = NULL;
- while (fill != &local->fill) {
- count += fill->count;
- fill = fill->next;
- }
+ while (fill != &local->fill) {
+ count += fill->count;
+ fill = fill->next;
+ }
- vector = GF_CALLOC (count, sizeof (*vector),
+ vector = GF_CALLOC (count, sizeof (*vector),
gf_ra_mt_iovec);
if (vector == NULL) {
local->op_ret = -1;
@@ -373,42 +373,42 @@ ra_frame_unwind (call_frame_t *frame)
iobref = NULL;
}
- fill = local->fill.next;
+ fill = local->fill.next;
- while (fill != &local->fill) {
- next = fill->next;
+ while (fill != &local->fill) {
+ next = fill->next;
if ((vector != NULL) && (iobref != NULL)) {
memcpy (((char *)vector) + copied, fill->vector,
fill->count * sizeof (*vector));
-
+
copied += (fill->count * sizeof (*vector));
iobref_merge (iobref, fill->iobref);
}
- fill->next->prev = fill->prev;
- fill->prev->next = fill->prev;
+ fill->next->prev = fill->prev;
+ fill->prev->next = fill->prev;
- iobref_unref (fill->iobref);
- GF_FREE (fill->vector);
- GF_FREE (fill);
+ iobref_unref (fill->iobref);
+ GF_FREE (fill->vector);
+ GF_FREE (fill);
- fill = next;
- }
+ fill = next;
+ }
- fd = local->fd;
- fd_ctx_get (fd, frame->this, &tmp_file);
- file = (ra_file_t *)(long)tmp_file;
+ fd = local->fd;
+ fd_ctx_get (fd, frame->this, &tmp_file);
+ file = (ra_file_t *)(long)tmp_file;
- STACK_UNWIND_STRICT (readv, frame, local->op_ret, local->op_errno,
+ STACK_UNWIND_STRICT (readv, frame, local->op_ret, local->op_errno,
vector, count, &file->stbuf, iobref);
- iobref_unref (iobref);
- pthread_mutex_destroy (&local->local_lock);
- GF_FREE (local);
- GF_FREE (vector);
+ iobref_unref (iobref);
+ pthread_mutex_destroy (&local->local_lock);
+ GF_FREE (local);
+ GF_FREE (vector);
- return;
+ return;
}
/*
@@ -419,25 +419,25 @@ ra_frame_unwind (call_frame_t *frame)
void
ra_frame_return (call_frame_t *frame)
{
- ra_local_t *local = NULL;
- int32_t wait_count = 0;
+ ra_local_t *local = NULL;
+ int32_t wait_count = 0;
- local = frame->local;
- GF_ASSERT (local->wait_count > 0);
+ local = frame->local;
+ GF_ASSERT (local->wait_count > 0);
- ra_local_lock (local);
- {
- wait_count = --local->wait_count;
- }
- ra_local_unlock (local);
+ ra_local_lock (local);
+ {
+ wait_count = --local->wait_count;
+ }
+ ra_local_unlock (local);
- if (!wait_count)
- ra_frame_unwind (frame);
+ if (!wait_count)
+ ra_frame_unwind (frame);
- return;
+ return;
}
-/*
+/*
* ra_page_wakeup -
* @page:
*
@@ -445,18 +445,18 @@ ra_frame_return (call_frame_t *frame)
ra_waitq_t *
ra_page_wakeup (ra_page_t *page)
{
- ra_waitq_t *waitq = NULL, *trav = NULL;
- call_frame_t *frame;
+ ra_waitq_t *waitq = NULL, *trav = NULL;
+ call_frame_t *frame = NULL;
- waitq = page->waitq;
- page->waitq = NULL;
+ waitq = page->waitq;
+ page->waitq = NULL;
- for (trav = waitq; trav; trav = trav->next) {
- frame = trav->data;
- ra_frame_fill (page, frame);
- }
+ for (trav = waitq; trav; trav = trav->next) {
+ frame = trav->data;
+ ra_frame_fill (page, frame);
+ }
- return waitq;
+ return waitq;
}
/*
@@ -467,14 +467,14 @@ ra_page_wakeup (ra_page_t *page)
void
ra_page_purge (ra_page_t *page)
{
- page->prev->next = page->next;
- page->next->prev = page->prev;
-
- if (page->iobref) {
- iobref_unref (page->iobref);
- }
- GF_FREE (page->vector);
- GF_FREE (page);
+ page->prev->next = page->next;
+ page->next->prev = page->prev;
+
+ if (page->iobref) {
+ iobref_unref (page->iobref);
+ }
+ GF_FREE (page->vector);
+ GF_FREE (page);
}
/*
@@ -488,30 +488,30 @@ ra_waitq_t *
ra_page_error (ra_page_t *page, int32_t op_ret, int32_t op_errno)
{
- ra_waitq_t *waitq = NULL;
- ra_waitq_t *trav = NULL;
- call_frame_t *frame = NULL;
- ra_local_t *local = NULL;
+ ra_waitq_t *waitq = NULL;
+ ra_waitq_t *trav = NULL;
+ call_frame_t *frame = NULL;
+ ra_local_t *local = NULL;
- waitq = page->waitq;
- page->waitq = NULL;
+ waitq = page->waitq;
+ page->waitq = NULL;
- for (trav = waitq; trav; trav = trav->next) {
- frame = trav->data;
+ for (trav = waitq; trav; trav = trav->next) {
+ frame = trav->data;
- local = frame->local;
- if (local->op_ret != -1) {
- local->op_ret = op_ret;
- local->op_errno = op_errno;
- }
- }
+ local = frame->local;
+ if (local->op_ret != -1) {
+ local->op_ret = op_ret;
+ local->op_errno = op_errno;
+ }
+ }
- ra_page_purge (page);
+ ra_page_purge (page);
- return waitq;
+ return waitq;
}
-/*
+/*
* ra_file_destroy -
* @file:
*
@@ -519,24 +519,24 @@ ra_page_error (ra_page_t *page, int32_t op_ret, int32_t op_errno)
void
ra_file_destroy (ra_file_t *file)
{
- ra_conf_t *conf = NULL;
- ra_page_t *trav = NULL;
-
- conf = file->conf;
-
- ra_conf_lock (conf);
- {
- file->prev->next = file->next;
- file->next->prev = file->prev;
- }
- ra_conf_unlock (conf);
-
- trav = file->pages.next;
- while (trav != &file->pages) {
- ra_page_error (trav, -1, EINVAL);
- trav = file->pages.next;
- }
-
- pthread_mutex_destroy (&file->file_lock);
- GF_FREE (file);
+ ra_conf_t *conf = NULL;
+ ra_page_t *trav = NULL;
+
+ conf = file->conf;
+
+ ra_conf_lock (conf);
+ {
+ file->prev->next = file->next;
+ file->next->prev = file->prev;
+ }
+ ra_conf_unlock (conf);
+
+ trav = file->pages.next;
+ while (trav != &file->pages) {
+ ra_page_error (trav, -1, EINVAL);
+ trav = file->pages.next;
+ }
+
+ pthread_mutex_destroy (&file->file_lock);
+ GF_FREE (file);
}
generated by cgit (git 2.34.1) at 2024-06-09 22:59:33 +0000