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-rw-r--r--xlators/cluster/afr/src/afr-lk-common.c91
-rw-r--r--xlators/cluster/afr/src/afr-self-heal-common.c1
-rw-r--r--xlators/cluster/afr/src/afr-self-heald.c1
-rw-r--r--xlators/cluster/afr/src/afr-transaction.c2
-rw-r--r--xlators/cluster/afr/src/afr.h10
-rw-r--r--xlators/cluster/afr/src/pump.c11
6 files changed, 94 insertions, 22 deletions
diff --git a/xlators/cluster/afr/src/afr-lk-common.c b/xlators/cluster/afr/src/afr-lk-common.c
index e9a3a430d..ebeb588e9 100644
--- a/xlators/cluster/afr/src/afr-lk-common.c
+++ b/xlators/cluster/afr/src/afr-lk-common.c
@@ -31,6 +31,14 @@
#define LOCKED_YES 0x1 /* for DATA, METADATA, ENTRY and higher_path */
#define LOCKED_LOWER 0x2 /* for lower path */
+static inline void
+afr_unset_lk_owner_and_call_cbk (call_frame_t *frame, xlator_t *this,
+ afr_internal_lock_t *int_lock)
+{
+ afr_unset_lk_owner (frame, this, int_lock);
+ int_lock->lock_cbk (frame, this);
+}
+
int
afr_lock_blocking (call_frame_t *frame, xlator_t *this, int child_index);
@@ -56,14 +64,58 @@ afr_set_lock_number (call_frame_t *frame, xlator_t *this)
return 0;
}
+static void
+afr_lkowner_trace_log (xlator_t *this, gf_lkowner_t *from, gf_lkowner_t *to)
+{
+ char from_lkowner[1024] = {0, };
+ char to_lkowner[1024] = {0, };
+ afr_private_t *priv = NULL;
+
+ priv = this->private;
+
+ if (!priv->entrylk_trace && !priv->inodelk_trace)
+ return;
+
+ lkowner_utoa_r (from, from_lkowner, sizeof (from_lkowner));
+ lkowner_utoa_r (to, to_lkowner, sizeof (to_lkowner));
+
+ gf_log (this->name, GF_LOG_INFO, "Changing lk-owner from %s to %s",
+ from_lkowner, to_lkowner);
+}
+
void
-afr_set_lk_owner (call_frame_t *frame, xlator_t *this)
+afr_set_lk_owner (call_frame_t *frame, xlator_t *this,
+ afr_internal_lock_t *int_lock)
{
- gf_log (this->name, GF_LOG_TRACE,
- "Setting lk-owner=%llu",
- (unsigned long long) (unsigned long)frame->root);
+
+ if (int_lock)
+ memcpy (&int_lock->fop_lkowner, &frame->root->lk_owner,
+ sizeof (int_lock->fop_lkowner));
set_lk_owner_from_ptr (&frame->root->lk_owner, frame->root);
+
+ afr_lkowner_trace_log (this, &int_lock->fop_lkowner,
+ &frame->root->lk_owner);
+}
+
+void
+afr_unset_lk_owner (call_frame_t *frame, xlator_t *this,
+ afr_internal_lock_t *int_lock)
+{
+ if (!int_lock) {
+ gf_log (this->name, GF_LOG_CRITICAL, "Attempting to unset "
+ "lk_owner without saved fop lk_owner");
+ goto out;
+ }
+
+ memcpy (&frame->root->lk_owner, &int_lock->fop_lkowner,
+ sizeof (int_lock->fop_lkowner));
+
+ afr_lkowner_trace_log (this, &int_lock->fop_lkowner,
+ &frame->root->lk_owner);
+
+out:
+ return;
}
static int
@@ -463,6 +515,8 @@ initialize_entrylk_variables (call_frame_t *frame, xlator_t *this)
int_lock->entry_locked_nodes[i] = 0;
}
+ afr_set_lk_owner (frame, this, int_lock);
+
return 0;
}
@@ -486,6 +540,8 @@ initialize_inodelk_variables (call_frame_t *frame, xlator_t *this)
int_lock->inode_locked_nodes[i] = 0;
}
+ afr_set_lk_owner (frame, this, int_lock);
+
return 0;
}
@@ -541,7 +597,7 @@ afr_unlock_common_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
if (call_count == 0) {
gf_log (this->name, GF_LOG_TRACE,
"All internal locks unlocked");
- int_lock->lock_cbk (frame, this);
+ afr_unset_lk_owner_and_call_cbk (frame, this, int_lock);
}
return 0;
@@ -614,7 +670,7 @@ afr_unlock_inodelk (call_frame_t *frame, xlator_t *this)
if (!call_count) {
gf_log (this->name, GF_LOG_TRACE,
"No internal locks unlocked");
- int_lock->lock_cbk (frame, this);
+ afr_unset_lk_owner_and_call_cbk (frame, this, int_lock);
goto out;
}
@@ -734,7 +790,7 @@ afr_unlock_entrylk (call_frame_t *frame, xlator_t *this)
if (!call_count){
gf_log (this->name, GF_LOG_TRACE,
"No internal locks unlocked");
- int_lock->lock_cbk (frame, this);
+ afr_unset_lk_owner_and_call_cbk (frame, this, int_lock);
goto out;
}
@@ -792,6 +848,7 @@ afr_lock_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
if ((op_ret == -1) &&
(op_errno == ENOSYS)) {
+ afr_unset_lk_owner (frame, this, int_lock);
afr_unlock (frame, this);
} else {
if (op_ret == 0) {
@@ -852,6 +909,7 @@ afr_lock_lower_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
UNLOCK (&frame->lock);
if (op_ret != 0) {
+ afr_unset_lk_owner (frame, this, int_lock);
afr_unlock (frame, this);
goto out;
} else {
@@ -967,6 +1025,7 @@ afr_lock_blocking (call_frame_t *frame, xlator_t *this, int child_index)
afr_copy_locked_nodes (frame, this);
+ afr_unset_lk_owner (frame, this, int_lock);
afr_unlock (frame, this);
return 0;
@@ -998,6 +1057,7 @@ afr_lock_blocking (call_frame_t *frame, xlator_t *this, int child_index)
afr_copy_locked_nodes (frame, this);
+ afr_unset_lk_owner (frame, this, int_lock);
afr_unlock(frame, this);
return 0;
@@ -1015,7 +1075,7 @@ afr_lock_blocking (call_frame_t *frame, xlator_t *this, int child_index)
afr_copy_locked_nodes (frame, this);
int_lock->lock_op_ret = 0;
- int_lock->lock_cbk (frame, this);
+ afr_unset_lk_owner_and_call_cbk (frame, this, int_lock);
return 0;
}
@@ -1190,7 +1250,7 @@ afr_nonblocking_entrylk_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
gf_log (this->name, GF_LOG_TRACE,
"All servers locked. Calling the cbk");
int_lock->lock_op_ret = 0;
- int_lock->lock_cbk (frame, this);
+ afr_unset_lk_owner_and_call_cbk (frame, this, int_lock);
}
/* Not all locks were successful. Unlock and try locking
again, this time with serially blocking locks */
@@ -1199,6 +1259,7 @@ afr_nonblocking_entrylk_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
"%d servers locked. Trying again with blocking calls",
int_lock->lock_count);
+ afr_unset_lk_owner (frame, this, int_lock);
afr_unlock(frame, this);
}
}
@@ -1265,6 +1326,7 @@ afr_nonblocking_entrylk (call_frame_t *frame, xlator_t *this)
if (!call_count) {
gf_log (this->name, GF_LOG_INFO,
"fd not open on any subvolumes. aborting.");
+ afr_unset_lk_owner (frame, this, int_lock);
afr_unlock (frame, this);
goto out;
}
@@ -1383,7 +1445,7 @@ afr_nonblocking_inodelk_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
gf_log (this->name, GF_LOG_TRACE,
"All servers locked. Calling the cbk");
int_lock->lock_op_ret = 0;
- int_lock->lock_cbk (frame, this);
+ afr_unset_lk_owner_and_call_cbk (frame, this, int_lock);
}
/* Not all locks were successful. Unlock and try locking
again, this time with serially blocking locks */
@@ -1392,6 +1454,7 @@ afr_nonblocking_inodelk_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
"%d servers locked. Trying again with blocking calls",
int_lock->lock_count);
+ afr_unset_lk_owner (frame, this, int_lock);
afr_unlock(frame, this);
}
}
@@ -1454,6 +1517,7 @@ afr_nonblocking_inodelk (call_frame_t *frame, xlator_t *this)
if (!call_count) {
gf_log (this->name, GF_LOG_INFO,
"fd not open on any subvolumes. aborting.");
+ afr_unset_lk_owner (frame, this, int_lock);
afr_unlock (frame, this);
goto out;
}
@@ -1647,6 +1711,7 @@ afr_post_unlock_lower_cbk (call_frame_t *frame, xlator_t *this)
local = frame->local;
int_lock = &local->internal_lock;
+ afr_set_lk_owner (frame, this, int_lock);
lower = lower_path (&local->transaction.parent_loc,
local->transaction.basename,
@@ -1724,9 +1789,13 @@ afr_rename_transaction (call_frame_t *frame, xlator_t *this)
int32_t
afr_unlock (call_frame_t *frame, xlator_t *this)
{
- afr_local_t *local = NULL;
+ afr_local_t *local = NULL;
+ afr_internal_lock_t *int_lock = NULL;
local = frame->local;
+ int_lock = &local->internal_lock;
+
+ afr_set_lk_owner (frame, this, int_lock);
if (transaction_lk_op (local)) {
if (is_afr_lock_transaction (local))
diff --git a/xlators/cluster/afr/src/afr-self-heal-common.c b/xlators/cluster/afr/src/afr-self-heal-common.c
index 0ff959240..b7649b127 100644
--- a/xlators/cluster/afr/src/afr-self-heal-common.c
+++ b/xlators/cluster/afr/src/afr-self-heal-common.c
@@ -2070,7 +2070,6 @@ afr_self_heal (call_frame_t *frame, xlator_t *this, inode_t *inode)
sh_frame = copy_frame (frame);
if (!sh_frame)
goto out;
- afr_set_lk_owner (sh_frame, this);
afr_set_low_priority (sh_frame);
sh_local = afr_local_copy (local, this);
diff --git a/xlators/cluster/afr/src/afr-self-heald.c b/xlators/cluster/afr/src/afr-self-heald.c
index fa7e61e49..c8fb4d38e 100644
--- a/xlators/cluster/afr/src/afr-self-heald.c
+++ b/xlators/cluster/afr/src/afr-self-heald.c
@@ -1031,7 +1031,6 @@ afr_start_crawl (xlator_t *this, int idx, afr_crawl_type_t crawl,
if (!frame)
goto out;
- afr_set_lk_owner (frame, this);
afr_set_low_priority (frame);
crawl_data = GF_CALLOC (1, sizeof (*crawl_data),
gf_afr_mt_crawl_data_t);
diff --git a/xlators/cluster/afr/src/afr-transaction.c b/xlators/cluster/afr/src/afr-transaction.c
index 36e2812f9..eb41c5184 100644
--- a/xlators/cluster/afr/src/afr-transaction.c
+++ b/xlators/cluster/afr/src/afr-transaction.c
@@ -1168,8 +1168,6 @@ afr_lock (call_frame_t *frame, xlator_t *this)
frame->root->pid = (long) frame->root;
- afr_set_lk_owner (frame, this);
-
afr_set_lock_number (frame, this);
return afr_lock_rec (frame, this);
diff --git a/xlators/cluster/afr/src/afr.h b/xlators/cluster/afr/src/afr.h
index f0cb32c12..87b557bcb 100644
--- a/xlators/cluster/afr/src/afr.h
+++ b/xlators/cluster/afr/src/afr.h
@@ -335,6 +335,9 @@ afr_index_for_transaction_type (afr_transaction_type type)
typedef struct {
loc_t *lk_loc;
struct gf_flock lk_flock;
+ gf_lkowner_t fop_lkowner; /* 'copy' of fop's lk_owner to protect
+ against afr internal locks 'irreversibly'
+ overloading lk_owner.*/
const char *lk_basename;
const char *lower_basename;
@@ -769,7 +772,12 @@ afr_mark_locked_nodes (xlator_t *this, fd_t *fd,
unsigned char *locked_nodes);
void
-afr_set_lk_owner (call_frame_t *frame, xlator_t *this);
+afr_set_lk_owner (call_frame_t *frame, xlator_t *this,
+ afr_internal_lock_t *int_lock);
+
+void
+afr_unset_lk_owner (call_frame_t *frame, xlator_t *this,
+ afr_internal_lock_t *int_lock);
int
afr_set_lock_number (call_frame_t *frame, xlator_t *this);
diff --git a/xlators/cluster/afr/src/pump.c b/xlators/cluster/afr/src/pump.c
index e795c38e0..bc9579100 100644
--- a/xlators/cluster/afr/src/pump.c
+++ b/xlators/cluster/afr/src/pump.c
@@ -696,15 +696,14 @@ pump_task_completion (int ret, call_frame_t *sync_frame, void *data)
int
pump_start (call_frame_t *pump_frame, xlator_t *this)
{
- afr_private_t *priv = NULL;
- pump_private_t *pump_priv = NULL;
-
- int ret = -1;
+ afr_private_t *priv = NULL;
+ pump_private_t *pump_priv = NULL;
+ int ret = -1;
- priv = this->private;
+ priv = this->private;
pump_priv = priv->pump_private;
- afr_set_lk_owner (pump_frame, this);
+ afr_set_lk_owner (pump_frame, this, NULL);
pump_pid = (uint64_t) (unsigned long)pump_frame->root;
ret = synctask_new (pump_priv->env, pump_task,
generated by cgit (git 2.34.1) at 2024-11-02 20:21:18 +0000