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authorPranith Kumar K <pkarampu@redhat.com>2015-07-01 14:25:07 +0530
committerXavier Hernandez <xhernandez@datalab.es>2015-07-14 04:14:38 -0700
commit7766c0df5509e8acb6768c69d3f5642909781135 (patch)
tree2ef8ab0f8bc7bdc31d1d3d5176d3e8b46c6944cb /xlators/cluster/ec
parent84ecb016cd2f1c8853c22e2df7d44d6c7bf32ed7 (diff)
cluster/ec: wind readlink on good subvol(s)
BUG: 1232172 Change-Id: I3a56e487840d86147dd85bf5fbe79b165eae289f Signed-off-by: Pranith Kumar K <pkarampu@redhat.com> Reviewed-on: http://review.gluster.org/11589 Tested-by: NetBSD Build System <jenkins@build.gluster.org> Reviewed-by: Xavier Hernandez <xhernandez@datalab.es> Tested-by: Gluster Build System <jenkins@build.gluster.com>
Diffstat (limited to 'xlators/cluster/ec')
-rw-r--r--xlators/cluster/ec/src/ec-common.c16
-rw-r--r--xlators/cluster/ec/src/ec-common.h2
-rw-r--r--xlators/cluster/ec/src/ec-data.c1
-rw-r--r--xlators/cluster/ec/src/ec-data.h3
-rw-r--r--xlators/cluster/ec/src/ec-dir-read.c11
-rw-r--r--xlators/cluster/ec/src/ec-inode-read.c105
6 files changed, 90 insertions, 48 deletions
diff --git a/xlators/cluster/ec/src/ec-common.c b/xlators/cluster/ec/src/ec-common.c
index 1c49eba7735..c54e043f5bb 100644
--- a/xlators/cluster/ec/src/ec-common.c
+++ b/xlators/cluster/ec/src/ec-common.c
@@ -596,13 +596,16 @@ void ec_dispatch_one(ec_fop_data_t * fop)
}
}
-int32_t ec_dispatch_one_retry(ec_fop_data_t *fop, int32_t idx, int32_t op_ret)
+gf_boolean_t
+ec_dispatch_one_retry(ec_fop_data_t *fop, ec_cbk_data_t *cbk)
{
- if (op_ret < 0) {
- return (ec_dispatch_next(fop, idx) >= 0);
- }
-
- return 0;
+ if ((cbk->op_ret < 0) && ec_is_recoverable_error (cbk->op_errno)) {
+ GF_ASSERT (fop->mask & (1ULL<<cbk->idx));
+ fop->mask ^= (1ULL << cbk->idx);
+ if (fop->mask)
+ return _gf_true;
+ }
+ return _gf_false;
}
void ec_dispatch_inc(ec_fop_data_t * fop)
@@ -1952,6 +1955,7 @@ void __ec_manager(ec_fop_data_t * fop, int32_t error)
fop->jobs = 1;
fop->state = fop->handler(fop, fop->state);
+ GF_ASSERT (fop->state >= 0);
error = ec_check_complete(fop, __ec_manager);
} while (error >= 0);
diff --git a/xlators/cluster/ec/src/ec-common.h b/xlators/cluster/ec/src/ec-common.h
index 4c7fe0c820b..1d78f132a94 100644
--- a/xlators/cluster/ec/src/ec-common.h
+++ b/xlators/cluster/ec/src/ec-common.h
@@ -75,7 +75,7 @@ typedef enum {
#define EC_STATE_HEAL_POST_INODELK_UNLOCK 217
#define EC_STATE_HEAL_DISPATCH 218
-int32_t ec_dispatch_one_retry (ec_fop_data_t *fop, int32_t idx, int32_t op_ret);
+gf_boolean_t ec_dispatch_one_retry (ec_fop_data_t *fop, ec_cbk_data_t *cbk);
int32_t ec_dispatch_next(ec_fop_data_t * fop, int32_t idx);
void ec_complete(ec_fop_data_t * fop);
diff --git a/xlators/cluster/ec/src/ec-data.c b/xlators/cluster/ec/src/ec-data.c
index 78c505cc704..765686579d7 100644
--- a/xlators/cluster/ec/src/ec-data.c
+++ b/xlators/cluster/ec/src/ec-data.c
@@ -98,6 +98,7 @@ void ec_cbk_data_destroy(ec_cbk_data_t * cbk)
}
GF_FREE(cbk->vector);
gf_dirent_free (&cbk->entries);
+ GF_FREE (cbk->str);
mem_put(cbk);
}
diff --git a/xlators/cluster/ec/src/ec-data.h b/xlators/cluster/ec/src/ec-data.h
index ec470e9e8c1..18da06cea04 100644
--- a/xlators/cluster/ec/src/ec-data.h
+++ b/xlators/cluster/ec/src/ec-data.h
@@ -253,6 +253,7 @@ struct _ec_cbk_data
int32_t op_errno;
int32_t count;
uintptr_t mask;
+ uint64_t dirty[2];
dict_t * xdata;
dict_t * dict;
@@ -267,8 +268,8 @@ struct _ec_cbk_data
struct gf_flock flock;
struct iovec * vector;
struct iobref * buffers;
- uint64_t dirty[2];
gf_dirent_t entries;
+ char *str;
};
struct _ec_heal
diff --git a/xlators/cluster/ec/src/ec-dir-read.c b/xlators/cluster/ec/src/ec-dir-read.c
index 5469d62bc3f..09010d5d108 100644
--- a/xlators/cluster/ec/src/ec-dir-read.c
+++ b/xlators/cluster/ec/src/ec-dir-read.c
@@ -438,14 +438,9 @@ int32_t ec_manager_readdir(ec_fop_data_t * fop, int32_t state)
case EC_STATE_PREPARE_ANSWER:
cbk = fop->answer;
if (cbk) {
- if ((cbk->op_ret < 0) &&
- ec_is_recoverable_error (cbk->op_errno)) {
- GF_ASSERT (fop->mask & (1ULL<<cbk->idx));
- fop->mask ^= (1ULL << cbk->idx);
- if (fop->mask == 0)
- return EC_STATE_REPORT;
- return EC_STATE_DISPATCH;
- }
+ if (ec_dispatch_one_retry (fop, cbk))
+ return EC_STATE_DISPATCH;
+
if ((cbk->op_ret > 0) && (fop->id == GF_FOP_READDIRP)) {
ec_adjust_readdirp (fop->xl->private, cbk->idx,
&cbk->entries);
diff --git a/xlators/cluster/ec/src/ec-inode-read.c b/xlators/cluster/ec/src/ec-inode-read.c
index 29e61bae8fd..2cc374bbfc9 100644
--- a/xlators/cluster/ec/src/ec-inode-read.c
+++ b/xlators/cluster/ec/src/ec-inode-read.c
@@ -84,13 +84,8 @@ ec_manager_access(ec_fop_data_t *fop, int32_t state)
case EC_STATE_PREPARE_ANSWER:
cbk = fop->answer;
if (cbk) {
- if ((cbk->op_ret < 0) && ec_is_recoverable_error (cbk->op_errno)) {
- GF_ASSERT (fop->mask & (1ULL<<cbk->idx));
- fop->mask ^= (1ULL << cbk->idx);
- if (fop->mask == 0)
- return EC_STATE_REPORT;
- return EC_STATE_DISPATCH;
- }
+ if (ec_dispatch_one_retry (fop, cbk))
+ return EC_STATE_DISPATCH;
} else {
ec_fop_set_error(fop, EIO);
}
@@ -1029,12 +1024,14 @@ int32_t ec_combine_readlink(ec_fop_data_t * fop, ec_cbk_data_t * dst,
return 1;
}
-int32_t ec_readlink_cbk(call_frame_t * frame, void * cookie, xlator_t * this,
- int32_t op_ret, int32_t op_errno, const char * path,
- struct iatt * buf, dict_t * xdata)
+int32_t
+ec_readlink_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
+ int32_t op_ret, int32_t op_errno, const char *path,
+ struct iatt *buf, dict_t *xdata)
{
- ec_fop_data_t * fop = NULL;
- int32_t idx = (int32_t)(uintptr_t)cookie;
+ ec_fop_data_t *fop = NULL;
+ ec_cbk_data_t *cbk = NULL;
+ int32_t idx = (int32_t)(uintptr_t)cookie;
VALIDATE_OR_GOTO(this, out);
GF_VALIDATE_OR_GOTO(this->name, frame, out);
@@ -1046,25 +1043,26 @@ int32_t ec_readlink_cbk(call_frame_t * frame, void * cookie, xlator_t * this,
ec_trace("CBK", fop, "idx=%d, frame=%p, op_ret=%d, op_errno=%d", idx,
frame, op_ret, op_errno);
- if (op_ret > 0)
- {
- ec_iatt_rebuild(fop->xl->private, buf, 1, 1);
- }
-
- if (!ec_dispatch_one_retry(fop, idx, op_ret))
- {
- if (fop->cbks.readlink != NULL)
- {
- fop->cbks.readlink(fop->req_frame, fop, this, op_ret, op_errno,
- path, buf, xdata);
- }
+ cbk = ec_cbk_data_allocate (frame, this, fop, fop->id,
+ idx, op_ret, op_errno);
+ if (cbk) {
+ if (xdata)
+ cbk->xdata = dict_ref (xdata);
+
+ if (cbk->op_ret >= 0) {
+ cbk->iatt[0] = *buf;
+ cbk->str = gf_strdup (path);
+ if (!cbk->str) {
+ cbk->op_ret = -1;
+ cbk->op_errno = ENOMEM;
+ }
+ }
+ ec_combine (cbk, NULL);
}
out:
if (fop != NULL)
- {
ec_complete(fop);
- }
return 0;
}
@@ -1080,25 +1078,68 @@ void ec_wind_readlink(ec_t * ec, ec_fop_data_t * fop, int32_t idx)
int32_t ec_manager_readlink(ec_fop_data_t * fop, int32_t state)
{
+ ec_cbk_data_t *cbk = NULL;
+
switch (state)
{
case EC_STATE_INIT:
+ case EC_STATE_LOCK:
+ ec_lock_prepare_inode (fop, &fop->loc[0], EC_QUERY_INFO);
+ ec_lock (fop);
+ return EC_STATE_DISPATCH;
+
case EC_STATE_DISPATCH:
- ec_dispatch_one(fop);
+ ec_dispatch_one (fop);
+
+ return EC_STATE_PREPARE_ANSWER;
+
+ case EC_STATE_PREPARE_ANSWER:
+ cbk = fop->answer;
+ if (cbk) {
+ if (ec_dispatch_one_retry (fop, cbk)) {
+ return EC_STATE_DISPATCH;
+ } else if (cbk->op_ret >= 0) {
+ ec_iatt_rebuild(fop->xl->private, &cbk->iatt[0], 1, 1);
+ }
+ } else {
+ ec_fop_set_error(fop, EIO);
+ }
return EC_STATE_REPORT;
+ case EC_STATE_REPORT:
+ cbk = fop->answer;
+ GF_ASSERT (cbk);
+ if (fop->cbks.readlink != NULL) {
+ fop->cbks.readlink (fop->req_frame, fop, fop->xl, cbk->op_ret,
+ cbk->op_errno, cbk->str, &cbk->iatt[0],
+ cbk->xdata);
+ }
+
+ return EC_STATE_LOCK_REUSE;
+
case -EC_STATE_INIT:
- if (fop->cbks.readlink != NULL)
- {
+ case -EC_STATE_LOCK:
+ case -EC_STATE_DISPATCH:
+ case -EC_STATE_PREPARE_ANSWER:
+ case -EC_STATE_REPORT:
+ if (fop->cbks.readlink != NULL) {
fop->cbks.readlink(fop->req_frame, fop, fop->xl, -1,
fop->error, NULL, NULL, NULL);
}
+ return EC_STATE_LOCK_REUSE;
- case EC_STATE_REPORT:
- case -EC_STATE_REPORT:
- return EC_STATE_END;
+ case -EC_STATE_LOCK_REUSE:
+ case EC_STATE_LOCK_REUSE:
+ ec_lock_reuse(fop);
+ return EC_STATE_UNLOCK;
+
+ case -EC_STATE_UNLOCK:
+ case EC_STATE_UNLOCK:
+ ec_unlock(fop);
+
+ return EC_STATE_END;
default:
gf_msg (fop->xl->name, GF_LOG_ERROR, 0,
EC_MSG_UNHANDLED_STATE, "Unhandled state %d for %s",