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-rw-r--r--xlators/cluster/afr/src/afr-inode-read.c1055
1 files changed, 372 insertions, 683 deletions
diff --git a/xlators/cluster/afr/src/afr-inode-read.c b/xlators/cluster/afr/src/afr-inode-read.c
index 0cfebcb9d55..01e078c13e6 100644
--- a/xlators/cluster/afr/src/afr-inode-read.c
+++ b/xlators/cluster/afr/src/afr-inode-read.c
@@ -35,241 +35,153 @@
#include "compat-errno.h"
#include "compat.h"
-/**
- * Common algorithm for inode read calls:
- *
- * - Try the fop on the first child that is up
- * - if we have failed due to ENOTCONN:
- * try the next child
- *
- * Applicable to: access, stat, fstat, readlink, getxattr
- */
+#include "afr-transaction.h"
+
/* {{{ access */
-int32_t
-afr_access_cbk (call_frame_t *frame, void *cookie,
- xlator_t *this, int32_t op_ret, int32_t op_errno, dict_t *xdata)
+int
+afr_access_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
+ int op_ret, int op_errno, dict_t *xdata)
{
- afr_private_t * priv = NULL;
- afr_local_t * local = NULL;
- xlator_t ** children = NULL;
- int unwind = 1;
- int32_t *last_index = NULL;
- int32_t next_call_child = -1;
- int32_t read_child = -1;
- int32_t *fresh_children = NULL;
-
- priv = this->private;
- children = priv->children;
+ afr_local_t *local = NULL;
local = frame->local;
- read_child = (long) cookie;
+ if (op_ret < 0) {
+ local->op_ret = op_ret;
+ local->op_errno = op_errno;
- if (op_ret == -1) {
- last_index = &local->cont.access.last_index;
- fresh_children = local->fresh_children;
- next_call_child = afr_next_call_child (fresh_children,
- local->child_up,
- priv->child_count,
- last_index, read_child);
- if (next_call_child < 0)
- goto out;
+ afr_read_txn_continue (frame, this, (long) cookie);
+ return 0;
+ }
- unwind = 0;
-
- STACK_WIND_COOKIE (frame, afr_access_cbk,
- (void *) (long) read_child,
- children[next_call_child],
- children[next_call_child]->fops->access,
- &local->loc, local->cont.access.mask,
- NULL);
- }
-
-out:
- if (unwind) {
- AFR_STACK_UNWIND (access, frame, op_ret, op_errno, xdata);
- }
+ AFR_STACK_UNWIND (access, frame, op_ret, op_errno, xdata);
return 0;
}
-int32_t
-afr_access (call_frame_t *frame, xlator_t *this, loc_t *loc, int32_t mask,
- dict_t *xdata)
+int
+afr_access_wind (call_frame_t *frame, xlator_t *this, int subvol)
{
- afr_private_t *priv = NULL;
- xlator_t **children = NULL;
- int call_child = 0;
- afr_local_t *local = NULL;
- int32_t op_errno = 0;
- int32_t read_child = -1;
- int ret = -1;
-
- VALIDATE_OR_GOTO (frame, out);
- VALIDATE_OR_GOTO (this, out);
- VALIDATE_OR_GOTO (this->private, out);
-
- priv = this->private;
- VALIDATE_OR_GOTO (priv->children, out);
-
- children = priv->children;
-
- AFR_SBRAIN_CHECK_LOC (loc, out);
-
- AFR_LOCAL_ALLOC_OR_GOTO (frame->local, out);
- local = frame->local;
-
- ret = afr_local_init (local, priv, &op_errno);
- if (ret < 0)
- goto out;
-
- local->fresh_children = afr_children_create (priv->child_count);
- if (!local->fresh_children) {
- op_errno = ENOMEM;
- goto out;
- }
+ afr_private_t *priv = NULL;
+ afr_local_t *local = NULL;
+
+ priv = this->private;
+ local = frame->local;
+
+ if (subvol == -1) {
+ AFR_STACK_UNWIND (access, frame, local->op_ret,
+ local->op_errno, 0);
+ return 0;
+ }
+
+ STACK_WIND_COOKIE (frame, afr_access_cbk, (void *) (long) subvol,
+ priv->children[subvol],
+ priv->children[subvol]->fops->access,
+ &local->loc, local->cont.access.mask,
+ local->xdata_req);
+ return 0;
+}
+int
+afr_access (call_frame_t *frame, xlator_t *this, loc_t *loc,
+ int mask, dict_t *xdata)
+{
+ afr_local_t *local = NULL;
+ int op_errno = 0;
- read_child = afr_inode_get_read_ctx (this, loc->inode,
- local->fresh_children);
- ret = afr_get_call_child (this, local->child_up, read_child,
- local->fresh_children,
- &call_child,
- &local->cont.access.last_index);
- if (ret < 0) {
- op_errno = -ret;
- goto out;
- }
+ local = AFR_FRAME_INIT (frame, op_errno);
+ if (!local)
+ goto out;
- loc_copy (&local->loc, loc);
- local->cont.access.mask = mask;
+ local->op = GF_FOP_ACCESS;
+ loc_copy (&local->loc, loc);
+ local->cont.access.mask = mask;
+ if (xdata)
+ local->xdata_req = dict_ref (xdata);
- STACK_WIND_COOKIE (frame, afr_access_cbk,
- (void *) (long) call_child,
- children[call_child],
- children[call_child]->fops->access,
- loc, mask, xdata);
+ afr_read_txn (frame, this, loc->inode, afr_access_wind,
+ AFR_METADATA_TRANSACTION);
- ret = 0;
+ return 0;
out:
- if (ret < 0)
- AFR_STACK_UNWIND (access, frame, -1, op_errno, NULL);
+ AFR_STACK_UNWIND (access, frame, -1, op_errno, NULL);
+
return 0;
}
-
/* }}} */
/* {{{ stat */
-int32_t
+int
afr_stat_cbk (call_frame_t *frame, void *cookie,
xlator_t *this, int32_t op_ret, int32_t op_errno,
struct iatt *buf, dict_t *xdata)
{
- afr_private_t * priv = NULL;
- afr_local_t * local = NULL;
- xlator_t ** children = NULL;
- int unwind = 1;
- int32_t *last_index = NULL;
- int32_t next_call_child = -1;
- int32_t read_child = -1;
- int32_t *fresh_children = NULL;
-
- priv = this->private;
- children = priv->children;
-
- read_child = (long) cookie;
+ afr_local_t *local = NULL;
local = frame->local;
- if (op_ret == -1) {
- last_index = &local->cont.stat.last_index;
- fresh_children = local->fresh_children;
- next_call_child = afr_next_call_child (fresh_children,
- local->child_up,
- priv->child_count,
- last_index, read_child);
- if (next_call_child < 0)
- goto out;
+ if (op_ret < 0) {
+ local->op_ret = op_ret;
+ local->op_errno = op_errno;
- unwind = 0;
+ afr_read_txn_continue (frame, this, (long) cookie);
+ return 0;
+ }
- STACK_WIND_COOKIE (frame, afr_stat_cbk,
- (void *) (long) read_child,
- children[next_call_child],
- children[next_call_child]->fops->stat,
- &local->loc, NULL);
- }
-
-out:
- if (unwind) {
- AFR_STACK_UNWIND (stat, frame, op_ret, op_errno, buf, xdata);
- }
+ AFR_STACK_UNWIND (stat, frame, op_ret, op_errno, buf, xdata);
return 0;
}
-int32_t
-afr_stat (call_frame_t *frame, xlator_t *this, loc_t *loc, dict_t *xdata)
+int
+afr_stat_wind (call_frame_t *frame, xlator_t *this, int subvol)
{
- afr_private_t *priv = NULL;
- afr_local_t *local = NULL;
- xlator_t **children = NULL;
- int call_child = 0;
- int32_t op_errno = 0;
- int32_t read_child = -1;
- int ret = -1;
-
- VALIDATE_OR_GOTO (frame, out);
- VALIDATE_OR_GOTO (this, out);
- VALIDATE_OR_GOTO (this->private, out);
-
- priv = this->private;
- VALIDATE_OR_GOTO (priv->children, out);
-
- children = priv->children;
-
- AFR_SBRAIN_CHECK_LOC (loc, out);
-
- AFR_LOCAL_ALLOC_OR_GOTO (frame->local, out);
- local = frame->local;
+ afr_private_t *priv = NULL;
+ afr_local_t *local = NULL;
+
+ priv = this->private;
+ local = frame->local;
+
+ if (subvol == -1) {
+ AFR_STACK_UNWIND (stat, frame, local->op_ret, local->op_errno,
+ 0, 0);
+ return 0;
+ }
+
+ STACK_WIND_COOKIE (frame, afr_stat_cbk, (void *) (long) subvol,
+ priv->children[subvol],
+ priv->children[subvol]->fops->stat,
+ &local->loc, local->xdata_req);
+ return 0;
+}
- ret = afr_local_init (local, priv, &op_errno);
- if (ret < 0)
- goto out;
+int
+afr_stat (call_frame_t *frame, xlator_t *this, loc_t *loc, dict_t *xdata)
+{
+ afr_local_t *local = NULL;
+ int op_errno = 0;
- local->fresh_children = afr_children_create (priv->child_count);
- if (!local->fresh_children) {
- op_errno = ENOMEM;
- goto out;
- }
+ local = AFR_FRAME_INIT (frame, op_errno);
+ if (!local)
+ goto out;
- read_child = afr_inode_get_read_ctx (this, loc->inode,
- local->fresh_children);
- ret = afr_get_call_child (this, local->child_up, read_child,
- local->fresh_children,
- &call_child,
- &local->cont.stat.last_index);
- if (ret < 0) {
- op_errno = -ret;
- goto out;
- }
- loc_copy (&local->loc, loc);
+ local->op = GF_FOP_STAT;
+ loc_copy (&local->loc, loc);
+ if (xdata)
+ local->xdata_req = dict_ref (xdata);
- STACK_WIND_COOKIE (frame, afr_stat_cbk, (void *) (long) call_child,
- children[call_child],
- children[call_child]->fops->stat,
- loc, xdata);
+ afr_read_txn (frame, this, loc->inode, afr_stat_wind,
+ AFR_DATA_TRANSACTION);
- ret = 0;
+ return 0;
out:
- if (ret < 0)
- AFR_STACK_UNWIND (stat, frame, -1, op_errno, NULL, NULL);
+ AFR_STACK_UNWIND (stat, frame, -1, op_errno, NULL, NULL);
return 0;
}
@@ -279,52 +191,49 @@ out:
/* {{{ fstat */
-int32_t
+int
afr_fstat_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
int32_t op_ret, int32_t op_errno, struct iatt *buf,
dict_t *xdata)
{
- afr_private_t *priv = NULL;
- afr_local_t *local = NULL;
- xlator_t **children = NULL;
- int unwind = 1;
- int32_t *last_index = NULL;
- int32_t next_call_child = -1;
- int32_t read_child = -1;
- int32_t *fresh_children = NULL;
-
- priv = this->private;
- children = priv->children;
+ afr_local_t *local = NULL;
local = frame->local;
- read_child = (long) cookie;
+ if (op_ret < 0) {
+ local->op_ret = op_ret;
+ local->op_errno = op_errno;
- if (op_ret == -1) {
- last_index = &local->cont.fstat.last_index;
- fresh_children = local->fresh_children;
- next_call_child = afr_next_call_child (fresh_children,
- local->child_up,
- priv->child_count,
- last_index, read_child);
- if (next_call_child < 0)
- goto out;
+ afr_read_txn_continue (frame, this, (long) cookie);
+ return 0;
+ }
- unwind = 0;
+ AFR_STACK_UNWIND (fstat, frame, op_ret, op_errno, buf, xdata);
- STACK_WIND_COOKIE (frame, afr_fstat_cbk,
- (void *) (long) read_child,
- children[next_call_child],
- children[next_call_child]->fops->fstat,
- local->fd, NULL);
- }
+ return 0;
+}
-out:
- if (unwind) {
- AFR_STACK_UNWIND (fstat, frame, op_ret, op_errno, buf, xdata);
- }
- return 0;
+int
+afr_fstat_wind (call_frame_t *frame, xlator_t *this, int subvol)
+{
+ afr_private_t *priv = NULL;
+ afr_local_t *local = NULL;
+
+ priv = this->private;
+ local = frame->local;
+
+ if (subvol == -1) {
+ AFR_STACK_UNWIND (fstat, frame, local->op_ret, local->op_errno,
+ 0, 0);
+ return 0;
+ }
+
+ STACK_WIND_COOKIE (frame, afr_fstat_cbk, (void *) (long) subvol,
+ priv->children[subvol],
+ priv->children[subvol]->fops->fstat,
+ local->fd, local->xdata_req);
+ return 0;
}
@@ -332,68 +241,26 @@ int32_t
afr_fstat (call_frame_t *frame, xlator_t *this,
fd_t *fd, dict_t *xdata)
{
- afr_private_t *priv = NULL;
- afr_local_t *local = NULL;
- xlator_t **children = NULL;
- int call_child = 0;
- int32_t op_errno = 0;
- int32_t read_child = 0;
- int ret = -1;
-
- VALIDATE_OR_GOTO (frame, out);
- VALIDATE_OR_GOTO (this, out);
- VALIDATE_OR_GOTO (fd, out);
- VALIDATE_OR_GOTO (this->private, out);
-
- priv = this->private;
- VALIDATE_OR_GOTO (priv->children, out);
-
- children = priv->children;
-
- VALIDATE_OR_GOTO (fd->inode, out);
-
- AFR_SBRAIN_CHECK_FD (fd, out);
-
- AFR_LOCAL_ALLOC_OR_GOTO (frame->local, out);
- local = frame->local;
-
- ret = afr_local_init (local, priv, &op_errno);
- if (ret < 0)
- goto out;
-
- local->fresh_children = afr_children_create (priv->child_count);
- if (!local->fresh_children) {
- op_errno = ENOMEM;
- goto out;
- }
+ afr_local_t *local = NULL;
+ int op_errno = 0;
- read_child = afr_inode_get_read_ctx (this, fd->inode,
- local->fresh_children);
+ local = AFR_FRAME_INIT (frame, op_errno);
+ if (!local)
+ goto out;
+ local->op = GF_FOP_FSTAT;
+ local->fd = fd_ref (fd);
+ if (xdata)
+ local->xdata_req = dict_ref (xdata);
+ afr_fix_open (fd, this);
- ret = afr_get_call_child (this, local->child_up, read_child,
- local->fresh_children,
- &call_child,
- &local->cont.fstat.last_index);
- if (ret < 0) {
- op_errno = -ret;
- goto out;
- }
-
- local->fd = fd_ref (fd);
-
- afr_open_fd_fix (fd, this);
+ afr_read_txn (frame, this, fd->inode, afr_fstat_wind,
+ AFR_DATA_TRANSACTION);
- STACK_WIND_COOKIE (frame, afr_fstat_cbk, (void *) (long) call_child,
- children[call_child],
- children[call_child]->fops->fstat,
- fd, xdata);
-
- ret = 0;
+ return 0;
out:
- if (ret < 0)
- AFR_STACK_UNWIND (fstat, frame, -1, op_errno, NULL, NULL);
+ AFR_STACK_UNWIND (fstat, frame, -1, op_errno, NULL, NULL);
return 0;
}
@@ -402,117 +269,77 @@ out:
/* {{{ readlink */
-int32_t
+int
afr_readlink_cbk (call_frame_t *frame, void *cookie,
xlator_t *this, int32_t op_ret, int32_t op_errno,
const char *buf, struct iatt *sbuf, dict_t *xdata)
{
- afr_private_t * priv = NULL;
- afr_local_t * local = NULL;
- xlator_t ** children = NULL;
- int unwind = 1;
- int32_t *last_index = NULL;
- int32_t next_call_child = -1;
- int32_t read_child = -1;
- int32_t *fresh_children = NULL;
+ afr_local_t *local = NULL;
- priv = this->private;
- children = priv->children;
+ local = frame->local;
- local = frame->local;
+ if (op_ret < 0) {
+ local->op_ret = -1;
+ local->op_errno = op_errno;
- read_child = (long) cookie;
+ afr_read_txn_continue (frame, this, (long) cookie);
+ return 0;
+ }
- if (op_ret == -1) {
- last_index = &local->cont.readlink.last_index;
- fresh_children = local->fresh_children;
- next_call_child = afr_next_call_child (fresh_children,
- local->child_up,
- priv->child_count,
- last_index, read_child);
- if (next_call_child < 0)
- goto out;
-
- unwind = 0;
- STACK_WIND_COOKIE (frame, afr_readlink_cbk,
- (void *) (long) read_child,
- children[next_call_child],
- children[next_call_child]->fops->readlink,
- &local->loc,
- local->cont.readlink.size, NULL);
- }
-
-out:
- if (unwind) {
- AFR_STACK_UNWIND (readlink, frame, op_ret, op_errno, buf, sbuf,
- xdata);
- }
+ AFR_STACK_UNWIND (readlink, frame, op_ret, op_errno,
+ buf, sbuf, xdata);
+ return 0;
+}
- return 0;
+int
+afr_readlink_wind (call_frame_t *frame, xlator_t *this, int subvol)
+{
+ afr_local_t *local = NULL;
+ afr_private_t *priv = NULL;
+
+ local = frame->local;
+ priv = this->private;
+
+ if (subvol == -1) {
+ AFR_STACK_UNWIND (readlink, frame, local->op_ret,
+ local->op_errno, 0, 0, 0);
+ return 0;
+ }
+
+ STACK_WIND_COOKIE (frame, afr_readlink_cbk, (void *) (long) subvol,
+ priv->children[subvol],
+ priv->children[subvol]->fops->readlink,
+ &local->loc, local->cont.readlink.size,
+ local->xdata_req);
+ return 0;
}
-int32_t
+int
afr_readlink (call_frame_t *frame, xlator_t *this,
loc_t *loc, size_t size, dict_t *xdata)
{
- afr_private_t *priv = NULL;
- xlator_t **children = NULL;
- int call_child = 0;
- afr_local_t *local = NULL;
+ afr_local_t * local = NULL;
int32_t op_errno = 0;
- int32_t read_child = -1;
- int ret = -1;
-
- VALIDATE_OR_GOTO (frame, out);
- VALIDATE_OR_GOTO (this, out);
- VALIDATE_OR_GOTO (this->private, out);
-
- priv = this->private;
- VALIDATE_OR_GOTO (priv->children, out);
- children = priv->children;
-
- AFR_SBRAIN_CHECK_LOC (loc, out);
-
- AFR_LOCAL_ALLOC_OR_GOTO (frame->local, out);
- local = frame->local;
-
- ret = afr_local_init (local, priv, &op_errno);
- if (ret < 0)
- goto out;
-
- local->fresh_children = afr_children_create (priv->child_count);
- if (!local->fresh_children) {
- op_errno = ENOMEM;
- goto out;
- }
- read_child = afr_inode_get_read_ctx (this, loc->inode,
- local->fresh_children);
- ret = afr_get_call_child (this, local->child_up, read_child,
- local->fresh_children,
- &call_child,
- &local->cont.readlink.last_index);
- if (ret < 0) {
- op_errno = -ret;
- goto out;
- }
+ local = AFR_FRAME_INIT (frame, op_errno);
+ if (!local)
+ goto out;
+ local->op = GF_FOP_READLINK;
loc_copy (&local->loc, loc);
+ local->cont.readlink.size = size;
+ if (xdata)
+ local->xdata_req = dict_ref (xdata);
- local->cont.readlink.size = size;
-
- STACK_WIND_COOKIE (frame, afr_readlink_cbk,
- (void *) (long) call_child,
- children[call_child],
- children[call_child]->fops->readlink,
- loc, size, xdata);
+ afr_read_txn (frame, this, loc->inode, afr_readlink_wind,
+ AFR_DATA_TRANSACTION);
- ret = 0;
-out:
- if (ret < 0)
- AFR_STACK_UNWIND (readlink, frame, -1, op_errno, NULL, NULL, NULL);
return 0;
+out:
+ AFR_STACK_UNWIND(readlink, frame, -1, op_errno, 0, 0, 0);
+
+ return 0;
}
@@ -550,7 +377,7 @@ __gather_xattr_keys (dict_t *dict, char *key, data_t *value,
void
-__filter_xattrs (dict_t *dict)
+afr_filter_xattrs (dict_t *dict)
{
struct list_head keys = {0,};
struct _xattr_key *key = NULL;
@@ -571,59 +398,56 @@ __filter_xattrs (dict_t *dict)
}
-
-int32_t
+int
afr_getxattr_cbk (call_frame_t *frame, void *cookie,
xlator_t *this, int32_t op_ret, int32_t op_errno,
dict_t *dict, dict_t *xdata)
{
- afr_private_t * priv = NULL;
- afr_local_t * local = NULL;
- xlator_t ** children = NULL;
- int unwind = 1;
- int32_t *last_index = NULL;
- int32_t next_call_child = -1;
- int32_t read_child = -1;
- int32_t *fresh_children = NULL;
-
- priv = this->private;
- children = priv->children;
+ afr_local_t *local = NULL;
local = frame->local;
- read_child = (long) cookie;
-
- if (op_ret == -1) {
- last_index = &local->cont.getxattr.last_index;
- fresh_children = local->fresh_children;
- next_call_child = afr_next_call_child (fresh_children,
- local->child_up,
- priv->child_count,
- last_index, read_child);
- if (next_call_child < 0)
- goto out;
+ if (op_ret < 0) {
+ local->op_ret = op_ret;
+ local->op_errno = op_errno;
- unwind = 0;
- STACK_WIND_COOKIE (frame, afr_getxattr_cbk,
- (void *) (long) read_child,
- children[next_call_child],
- children[next_call_child]->fops->getxattr,
- &local->loc,
- local->cont.getxattr.name,
- NULL);
- }
+ afr_read_txn_continue (frame, this, (long) cookie);
+ return 0;
+ }
-out:
- if (unwind) {
- if (op_ret >= 0 && dict)
- __filter_xattrs (dict);
+ if (dict)
+ afr_filter_xattrs (dict);
- AFR_STACK_UNWIND (getxattr, frame, op_ret, op_errno, dict, xdata);
- }
+ AFR_STACK_UNWIND (getxattr, frame, op_ret, op_errno, dict, xdata);
return 0;
}
+
+int
+afr_getxattr_wind (call_frame_t *frame, xlator_t *this, int subvol)
+{
+ afr_local_t *local = NULL;
+ afr_private_t *priv = NULL;
+
+ local = frame->local;
+ priv = this->private;
+
+ if (subvol == -1) {
+ AFR_STACK_UNWIND (getxattr, frame, local->op_ret,
+ local->op_errno, NULL, NULL);
+ return 0;
+ }
+
+ STACK_WIND_COOKIE (frame, afr_getxattr_cbk, (void *) (long) subvol,
+ priv->children[subvol],
+ priv->children[subvol]->fops->getxattr,
+ &local->loc, local->cont.getxattr.name,
+ local->xdata_req);
+ return 0;
+}
+
+
int32_t
afr_getxattr_unwind (call_frame_t *frame, int op_ret, int op_errno,
dict_t *dict, dict_t *xdata)
@@ -659,7 +483,7 @@ afr_fgetxattr_clrlk_cbk (call_frame_t *frame, void *cookie,
{
callcnt = --local->call_count;
if (op_ret == -1)
- local->child_errno[cky] = op_errno;
+ local->replies[cky].op_errno = op_errno;
if (!local->dict)
local->dict = dict_new ();
@@ -710,12 +534,10 @@ unlock:
unwind:
// Updating child_errno with more recent 'events'
- local->child_errno[cky] = op_errno;
- op_errno = afr_resultant_errno_get (NULL, local->child_errno,
- priv->child_count);
+ op_errno = afr_final_errno (local, priv);
+
AFR_STACK_UNWIND (fgetxattr, frame, op_ret, op_errno, xattr,
xdata);
-
if (xattr)
dict_unref (xattr);
}
@@ -749,7 +571,7 @@ afr_getxattr_clrlk_cbk (call_frame_t *frame, void *cookie,
{
callcnt = --local->call_count;
if (op_ret == -1)
- local->child_errno[cky] = op_errno;
+ local->replies[cky].op_errno = op_errno;
if (!local->dict)
local->dict = dict_new ();
@@ -800,9 +622,8 @@ unlock:
unwind:
// Updating child_errno with more recent 'events'
- local->child_errno[cky] = op_errno;
- op_errno = afr_resultant_errno_get (NULL, local->child_errno,
- priv->child_count);
+ op_errno = afr_final_errno (local, priv);
+
AFR_STACK_UNWIND (getxattr, frame, op_ret, op_errno, xattr, xdata);
if (xattr)
@@ -1411,7 +1232,7 @@ afr_is_special_xattr (const char *name, fop_getxattr_cbk_t *cbk,
}
if (!strcmp (name, GF_XATTR_PATHINFO_KEY) ||
- !strcmp (name, GF_XATTR_USER_PATHINFO_KEY)) {
+ !strcmp (name, GF_XATTR_USER_PATHINFO_KEY)) {
if (is_fgetxattr) {
*cbk = afr_fgetxattr_pathinfo_cbk;
} else {
@@ -1442,18 +1263,16 @@ out:
}
static void
-afr_getxattr_frm_all_children (xlator_t *this, call_frame_t *frame,
- const char *name, loc_t *loc,
- fop_getxattr_cbk_t cbk)
+afr_getxattr_all_subvols (xlator_t *this, call_frame_t *frame,
+ const char *name, loc_t *loc,
+ fop_getxattr_cbk_t cbk)
{
afr_private_t *priv = NULL;
afr_local_t *local = NULL;
- xlator_t **children = NULL;
int i = 0;
int call_count = 0;
priv = this->private;
- children = priv->children;
local = frame->local;
//local->call_count set in afr_local_init
@@ -1465,8 +1284,8 @@ afr_getxattr_frm_all_children (xlator_t *this, call_frame_t *frame,
for (i = 0; i < priv->child_count; i++) {
if (local->child_up[i]) {
STACK_WIND_COOKIE (frame, cbk,
- (void *) (long) i, children[i],
- children[i]->fops->getxattr,
+ (void *) (long) i, priv->children[i],
+ priv->children[i]->fops->getxattr,
loc, name, NULL);
if (!--call_count)
break;
@@ -1481,41 +1300,41 @@ afr_getxattr (call_frame_t *frame, xlator_t *this,
{
afr_private_t *priv = NULL;
xlator_t **children = NULL;
- int call_child = 0;
afr_local_t *local = NULL;
xlator_list_t *trav = NULL;
xlator_t **sub_volumes = NULL;
int i = 0;
int32_t op_errno = 0;
- int32_t read_child = -1;
int ret = -1;
fop_getxattr_cbk_t cbk = NULL;
int afr_xtime_gauge[MCNT_MAX] = {0,};
- VALIDATE_OR_GOTO (frame, out);
- VALIDATE_OR_GOTO (this, out);
- VALIDATE_OR_GOTO (this->private, out);
+
+ local = AFR_FRAME_INIT (frame, op_errno);
+ if (!local)
+ goto out;
priv = this->private;
- VALIDATE_OR_GOTO (priv->children, out);
children = priv->children;
- AFR_SBRAIN_CHECK_LOC (loc, out);
+ loc_copy (&local->loc, loc);
- AFR_LOCAL_ALLOC_OR_GOTO (frame->local, out);
- local = frame->local;
+ local->op = GF_FOP_GETXATTR;
- ret = afr_local_init (local, priv, &op_errno);
- if (ret < 0)
- goto out;
+ if (xdata)
+ local->xdata_req = dict_ref (xdata);
- loc_copy (&local->loc, loc);
if (!name)
goto no_name;
local->cont.getxattr.name = gf_strdup (name);
+ if (!local->cont.getxattr.name) {
+ op_errno = ENOMEM;
+ goto out;
+ }
+
if (!strncmp (name, AFR_XATTR_PREFIX,
strlen (AFR_XATTR_PREFIX))) {
gf_log (this->name, GF_LOG_INFO,
@@ -1559,8 +1378,7 @@ afr_getxattr (call_frame_t *frame, xlator_t *this,
* collect information from all childs
*/
if (afr_is_special_xattr (name, &cbk, 0)) {
- afr_getxattr_frm_all_children (this, frame, name,
- loc, cbk);
+ afr_getxattr_all_subvols (this, frame, name, loc, cbk);
return 0;
}
@@ -1615,28 +1433,9 @@ afr_getxattr (call_frame_t *frame, xlator_t *this,
}
no_name:
- local->fresh_children = afr_children_create (priv->child_count);
- if (!local->fresh_children) {
- op_errno = ENOMEM;
- goto out;
- }
- read_child = afr_inode_get_read_ctx (this, loc->inode,
- local->fresh_children);
- ret = afr_get_call_child (this, local->child_up, read_child,
- local->fresh_children,
- &call_child,
- &local->cont.getxattr.last_index);
- if (ret < 0) {
- op_errno = -ret;
- goto out;
- }
-
- STACK_WIND_COOKIE (frame, afr_getxattr_cbk,
- (void *) (long) call_child,
- children[call_child],
- children[call_child]->fops->getxattr,
- loc, name, xdata);
+ afr_read_txn (frame, this, local->loc.inode, afr_getxattr_wind,
+ AFR_METADATA_TRANSACTION);
ret = 0;
out:
@@ -1653,76 +1452,60 @@ afr_fgetxattr_cbk (call_frame_t *frame, void *cookie,
xlator_t *this, int32_t op_ret, int32_t op_errno,
dict_t *dict, dict_t *xdata)
{
- afr_private_t * priv = NULL;
- afr_local_t * local = NULL;
- xlator_t ** children = NULL;
- int unwind = 1;
- int32_t *last_index = NULL;
- int32_t next_call_child = -1;
- int32_t read_child = -1;
- int32_t *fresh_children = NULL;
-
- priv = this->private;
- children = priv->children;
-
- local = frame->local;
+ afr_local_t *local = NULL;
- read_child = (long) cookie;
+ local = frame->local;
- if (op_ret == -1) {
- last_index = &local->cont.getxattr.last_index;
- fresh_children = local->fresh_children;
- next_call_child = afr_next_call_child (fresh_children,
- local->child_up,
- priv->child_count,
- last_index, read_child);
- if (next_call_child < 0)
- goto out;
+ if (op_ret < 0) {
+ local->op_ret = -1;
+ local->op_errno = op_errno;
- unwind = 0;
- STACK_WIND_COOKIE (frame, afr_fgetxattr_cbk,
- (void *) (long) read_child,
- children[next_call_child],
- children[next_call_child]->fops->fgetxattr,
- local->fd,
- local->cont.getxattr.name,
- NULL);
- }
+ afr_read_txn_continue (frame, this, (long) cookie);
+ return 0;
+ }
-out:
- if (unwind) {
- if (op_ret >= 0 && dict)
- __filter_xattrs (dict);
+ if (dict)
+ afr_filter_xattrs (dict);
- AFR_STACK_UNWIND (fgetxattr, frame, op_ret, op_errno, dict,
- xdata);
- }
+ AFR_STACK_UNWIND (fgetxattr, frame, op_ret, op_errno, dict, xdata);
- return 0;
+ return 0;
}
-int32_t
-afr_fgetxattr_unwind (call_frame_t *frame,
- int op_ret, int op_errno, dict_t *dict, dict_t *xdata)
-
+int
+afr_fgetxattr_wind (call_frame_t *frame, xlator_t *this, int subvol)
{
- AFR_STACK_UNWIND (fgetxattr, frame, op_ret, op_errno, dict, xdata);
- return 0;
+ afr_local_t *local = NULL;
+ afr_private_t *priv = NULL;
+
+ local = frame->local;
+ priv = this->private;
+
+ if (subvol == -1) {
+ AFR_STACK_UNWIND (fgetxattr, frame, local->op_ret,
+ local->op_errno, NULL, NULL);
+ return 0;
+ }
+
+ STACK_WIND_COOKIE (frame, (void *) (long) subvol, afr_fgetxattr_cbk,
+ priv->children[subvol],
+ priv->children[subvol]->fops->fgetxattr,
+ local->fd, local->cont.getxattr.name,
+ local->xdata_req);
+ return 0;
}
+
static void
-afr_fgetxattr_frm_all_children (xlator_t *this, call_frame_t *frame,
- const char *name, fd_t *fd,
- fop_fgetxattr_cbk_t cbk)
+afr_fgetxattr_all_subvols (xlator_t *this, call_frame_t *frame,
+ fop_fgetxattr_cbk_t cbk)
{
afr_private_t *priv = NULL;
afr_local_t *local = NULL;
- xlator_t **children = NULL;
int i = 0;
int call_count = 0;
priv = this->private;
- children = priv->children;
local = frame->local;
//local->call_count set in afr_local_init
@@ -1735,9 +1518,10 @@ afr_fgetxattr_frm_all_children (xlator_t *this, call_frame_t *frame,
if (local->child_up[i]) {
STACK_WIND_COOKIE (frame, cbk,
(void *) (long) i,
- children[i],
- children[i]->fops->fgetxattr,
- fd, name, NULL);
+ priv->children[i],
+ priv->children[i]->fops->fgetxattr,
+ local->fd, local->cont.getxattr.name,
+ NULL);
if (!--call_count)
break;
}
@@ -1746,42 +1530,30 @@ afr_fgetxattr_frm_all_children (xlator_t *this, call_frame_t *frame,
return;
}
-int32_t
+
+int
afr_fgetxattr (call_frame_t *frame, xlator_t *this,
fd_t *fd, const char *name, dict_t *xdata)
{
- afr_private_t *priv = NULL;
- xlator_t **children = NULL;
- int call_child = 0;
afr_local_t *local = NULL;
- int32_t op_ret = -1;
int32_t op_errno = 0;
- int32_t read_child = -1;
fop_fgetxattr_cbk_t cbk = NULL;
- VALIDATE_OR_GOTO (frame, out);
- VALIDATE_OR_GOTO (this, out);
- VALIDATE_OR_GOTO (this->private, out);
-
- priv = this->private;
- VALIDATE_OR_GOTO (priv->children, out);
-
- children = priv->children;
-
- AFR_SBRAIN_CHECK_FD (fd, out);
-
- AFR_LOCAL_ALLOC_OR_GOTO (local, out);
- frame->local = local;
-
- op_ret = afr_local_init (local, priv, &op_errno);
- if (op_ret < 0) {
- op_errno = -op_ret;
- goto out;
- }
+ local = AFR_FRAME_INIT (frame, op_errno);
+ if (!local)
+ goto out;
+ local->op = GF_FOP_FGETXATTR;
local->fd = fd_ref (fd);
- if (name)
+ if (name) {
local->cont.getxattr.name = gf_strdup (name);
+ if (!local->cont.getxattr.name) {
+ op_errno = ENOMEM;
+ goto out;
+ }
+ }
+ if (xdata)
+ local->xdata_req = dict_ref (xdata);
/* pathinfo gets handled only in getxattr(), but we need to handle
* lockinfo.
@@ -1789,42 +1561,19 @@ afr_fgetxattr (call_frame_t *frame, xlator_t *this,
* collect information from all children.
*/
if (afr_is_special_xattr (name, &cbk, 1)) {
- afr_fgetxattr_frm_all_children (this, frame, name,
- fd, cbk);
+ afr_fgetxattr_all_subvols (this, frame, cbk);
return 0;
}
+ afr_fix_open (fd, this);
- local->fresh_children = afr_children_create (priv->child_count);
- if (!local->fresh_children) {
- op_errno = ENOMEM;
- goto out;
- }
-
- read_child = afr_inode_get_read_ctx (this, fd->inode,
- local->fresh_children);
- op_ret = afr_get_call_child (this, local->child_up, read_child,
- local->fresh_children,
- &call_child,
- &local->cont.getxattr.last_index);
- if (op_ret < 0) {
- op_errno = -op_ret;
- op_ret = -1;
- goto out;
- }
-
- STACK_WIND_COOKIE (frame, afr_fgetxattr_cbk,
- (void *) (long) call_child,
- children[call_child],
- children[call_child]->fops->fgetxattr,
- fd, name, xdata);
+ afr_read_txn (frame, this, fd->inode, afr_fgetxattr_wind,
+ AFR_METADATA_TRANSACTION);
- op_ret = 0;
+ return 0;
out:
- if (op_ret == -1) {
- AFR_STACK_UNWIND (fgetxattr, frame, op_ret, op_errno, NULL,
- NULL);
- }
+ AFR_STACK_UNWIND (fgetxattr, frame, -1, op_errno, NULL, NULL);
+
return 0;
}
@@ -1833,144 +1582,84 @@ out:
/* {{{ readv */
-/**
- * read algorithm:
- *
- * if the user has specified a read subvolume, use it
- * otherwise -
- * use the inode number to hash it to one of the subvolumes, and
- * read from there (to balance read load)
- *
- * if any of the above read's fail, try the children in sequence
- * beginning at the beginning
- */
-
-int32_t
+int
afr_readv_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 *buf,
struct iobref *iobref, dict_t *xdata)
{
- afr_private_t * priv = NULL;
- afr_local_t * local = NULL;
- xlator_t ** children = NULL;
- int unwind = 1;
- int32_t *last_index = NULL;
- int32_t next_call_child = -1;
- int32_t *fresh_children = NULL;
- int32_t read_child = -1;
-
- VALIDATE_OR_GOTO (frame, out);
- VALIDATE_OR_GOTO (this, out);
- VALIDATE_OR_GOTO (this->private, out);
-
- priv = this->private;
- VALIDATE_OR_GOTO (priv->children, out);
-
- children = priv->children;
+ afr_local_t *local = NULL;
- local = frame->local;
+ local = frame->local;
- read_child = (long) cookie;
+ if (op_ret < 0) {
+ local->op_ret = -1;
+ local->op_errno = op_errno;
- if (op_ret == -1) {
- last_index = &local->cont.readv.last_index;
- fresh_children = local->fresh_children;
- next_call_child = afr_next_call_child (fresh_children,
- local->child_up,
- priv->child_count,
- last_index, read_child);
- if (next_call_child < 0)
- goto out;
-
- unwind = 0;
+ afr_read_txn_continue (frame, this, (long) cookie);
+ return 0;
+ }
- STACK_WIND_COOKIE (frame, afr_readv_cbk,
- (void *) (long) read_child,
- children[next_call_child],
- children[next_call_child]->fops->readv,
- local->fd, local->cont.readv.size,
- local->cont.readv.offset,
- local->cont.readv.flags,
- NULL);
- }
+ AFR_STACK_UNWIND (readv, frame, op_ret, op_errno,
+ vector, count, buf, iobref, xdata);
+ return 0;
+}
-out:
- if (unwind) {
- AFR_STACK_UNWIND (readv, frame, op_ret, op_errno,
- vector, count, buf, iobref, xdata);
- }
- return 0;
+int
+afr_readv_wind (call_frame_t *frame, xlator_t *this, int subvol)
+{
+ afr_local_t *local = NULL;
+ afr_private_t *priv = NULL;
+
+ local = frame->local;
+ priv = this->private;
+
+ if (subvol == -1) {
+ AFR_STACK_UNWIND (readv, frame, local->op_ret, local->op_errno,
+ 0, 0, 0, 0, 0);
+ return 0;
+ }
+
+ STACK_WIND_COOKIE (frame, afr_readv_cbk, (void *) (long) subvol,
+ priv->children[subvol],
+ priv->children[subvol]->fops->readv,
+ local->fd, local->cont.readv.size,
+ local->cont.readv.offset, local->cont.readv.flags,
+ local->xdata_req);
+ return 0;
}
-int32_t
-afr_readv (call_frame_t *frame, xlator_t *this,
- fd_t *fd, size_t size, off_t offset, uint32_t flags, dict_t *xdata)
+int
+afr_readv (call_frame_t *frame, xlator_t *this, fd_t *fd, size_t size,
+ off_t offset, uint32_t flags, dict_t *xdata)
{
- afr_private_t * priv = NULL;
afr_local_t * local = NULL;
- xlator_t ** children = NULL;
- int call_child = 0;
int32_t op_errno = 0;
- int32_t read_child = -1;
- int ret = -1;
-
- VALIDATE_OR_GOTO (frame, out);
- VALIDATE_OR_GOTO (this, out);
- VALIDATE_OR_GOTO (this->private, out);
- VALIDATE_OR_GOTO (fd, out);
-
- priv = this->private;
- children = priv->children;
- AFR_SBRAIN_CHECK_FD (fd, out);
+ local = AFR_FRAME_INIT (frame, op_errno);
+ if (!local)
+ goto out;
- AFR_LOCAL_ALLOC_OR_GOTO (frame->local, out);
- local = frame->local;
-
- ret = afr_local_init (local, priv, &op_errno);
- if (ret < 0)
- goto out;
-
- local->fresh_children = afr_children_create (priv->child_count);
- if (!local->fresh_children) {
- op_errno = ENOMEM;
- goto out;
- }
-
- read_child = afr_inode_get_read_ctx (this, fd->inode, local->fresh_children);
- ret = afr_get_call_child (this, local->child_up, read_child,
- local->fresh_children,
- &call_child,
- &local->cont.readv.last_index);
- if (ret < 0) {
- op_errno = -ret;
- goto out;
- }
-
- local->fd = fd_ref (fd);
-
- local->cont.readv.size = size;
- local->cont.readv.offset = offset;
- local->cont.readv.flags = flags;
+ local->op = GF_FOP_READ;
+ local->fd = fd_ref (fd);
+ local->cont.readv.size = size;
+ local->cont.readv.offset = offset;
+ local->cont.readv.flags = flags;
+ if (xdata)
+ local->xdata_req = dict_ref (xdata);
- afr_open_fd_fix (fd, this);
+ afr_fix_open (fd, this);
- STACK_WIND_COOKIE (frame, afr_readv_cbk,
- (void *) (long) call_child,
- children[call_child],
- children[call_child]->fops->readv,
- fd, size, offset, flags, xdata);
+ afr_read_txn (frame, this, fd->inode, afr_readv_wind,
+ AFR_DATA_TRANSACTION);
- ret = 0;
-out:
- if (ret < 0) {
- AFR_STACK_UNWIND (readv, frame, -1, op_errno, NULL, 0, NULL,
- NULL, NULL);
- }
return 0;
+out:
+ AFR_STACK_UNWIND(readv, frame, -1, op_errno, 0, 0, 0, 0, 0);
+
+ return 0;
}
/* }}} */
generated by cgit (git 2.34.1) at 2024-11-19 18:11:56 +0000