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path: root/xlators/cluster/ec/src/ec-locks.c
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Diffstat (limited to 'xlators/cluster/ec/src/ec-locks.c')
-rw-r--r--xlators/cluster/ec/src/ec-locks.c305
1 files changed, 94 insertions, 211 deletions
diff --git a/xlators/cluster/ec/src/ec-locks.c b/xlators/cluster/ec/src/ec-locks.c
index 2e301631b3f..10572037932 100644
--- a/xlators/cluster/ec/src/ec-locks.c
+++ b/xlators/cluster/ec/src/ec-locks.c
@@ -21,57 +21,52 @@
#define EC_LOCK_MODE_INC 1
#define EC_LOCK_MODE_ALL 2
-int32_t ec_lock_check(ec_fop_data_t * fop, ec_cbk_data_t ** cbk,
- uintptr_t * mask)
+int32_t ec_lock_check(ec_fop_data_t *fop, uintptr_t *mask)
{
- ec_t * ec = fop->xl->private;
- ec_cbk_data_t * ans = NULL;
+ ec_t *ec = fop->xl->private;
+ ec_cbk_data_t *ans = NULL;
+ ec_cbk_data_t *cbk = NULL;
uintptr_t locked = 0, notlocked = 0;
int32_t error = -1;
- list_for_each_entry(ans, &fop->cbk_list, list)
- {
- if (ans->op_ret >= 0)
- {
- if (locked != 0)
- {
+ list_for_each_entry(ans, &fop->cbk_list, list) {
+ if (ans->op_ret >= 0) {
+ if (locked != 0) {
error = EIO;
}
locked |= ans->mask;
- *cbk = ans;
- }
- else if (ans->op_errno == EAGAIN)
- {
+ cbk = ans;
+ } else {
notlocked |= ans->mask;
}
}
- if (error == -1)
- {
- if (ec_bits_count(locked | notlocked) >= ec->fragments)
- {
- if (notlocked == 0)
- {
- fop->answer = *cbk;
+ if (error == -1) {
+ if (ec_bits_count(locked | notlocked) >= ec->fragments) {
+ if (ec_bits_count (locked) >= ec->fragments) {
+ if (fop->answer == NULL) {
+ fop->answer = cbk;
+ }
ec_update_bad(fop, locked);
error = 0;
- }
- else
- {
- if (fop->uint32 == EC_LOCK_MODE_NONE)
- {
+ } else {
+ switch (fop->uint32) {
+ case EC_LOCK_MODE_NONE:
error = EAGAIN;
- }
- else
- {
+ break;
+
+ case EC_LOCK_MODE_ALL:
fop->uint32 = EC_LOCK_MODE_INC;
+ break;
+
+ default:
+ error = EIO;
+ break;
}
}
- }
- else
- {
+ } else {
error = EIO;
}
}
@@ -81,28 +76,6 @@ int32_t ec_lock_check(ec_fop_data_t * fop, ec_cbk_data_t ** cbk,
return error;
}
-uintptr_t ec_lock_handler(ec_fop_data_t * fop, ec_cbk_data_t * cbk,
- ec_combine_f combine)
-{
- uintptr_t mask = 0;
-
- if (fop->uint32 == EC_LOCK_MODE_INC)
- {
- if (cbk->op_ret < 0)
- {
- if (cbk->op_errno != ENOTCONN)
- {
- mask = fop->mask & ~fop->remaining & ~cbk->mask;
- fop->remaining = 0;
- }
- }
- }
-
- ec_combine(cbk, combine);
-
- return mask;
-}
-
int32_t ec_lock_unlocked(call_frame_t * frame, void * cookie,
xlator_t * this, int32_t op_ret, int32_t op_errno,
dict_t * xdata)
@@ -150,8 +123,6 @@ int32_t ec_entrylk_cbk(call_frame_t * frame, void * cookie, xlator_t * this,
op_errno);
if (cbk != NULL)
{
- uintptr_t mask;
-
if (xdata != NULL)
{
cbk->xdata = dict_ref(xdata);
@@ -164,13 +135,7 @@ int32_t ec_entrylk_cbk(call_frame_t * frame, void * cookie, xlator_t * this,
}
}
- mask = ec_lock_handler(fop, cbk, NULL);
- if (mask != 0)
- {
- ec_entrylk(fop->req_frame, fop->xl, mask, 1, ec_lock_unlocked,
- NULL, fop->str[0], &fop->loc[0], fop->str[1],
- ENTRYLK_UNLOCK, fop->entrylk_type, fop->xdata);
- }
+ ec_combine(cbk, NULL);
}
out:
@@ -213,45 +178,41 @@ int32_t ec_manager_entrylk(ec_fop_data_t * fop, int32_t state)
return EC_STATE_PREPARE_ANSWER;
case EC_STATE_PREPARE_ANSWER:
- cbk = fop->answer;
- if ((cbk == NULL) ||
- ((cbk->op_ret < 0) && (cbk->op_errno == EAGAIN)))
- {
+ if (fop->entrylk_cmd != ENTRYLK_UNLOCK) {
uintptr_t mask;
- fop->error = ec_lock_check(fop, &cbk, &mask);
- if (fop->error != 0)
- {
- if (mask != 0)
- {
- if (fop->id == GF_FOP_ENTRYLK)
- {
- ec_entrylk(fop->req_frame, fop->xl, mask, 1,
+ fop->error = ec_lock_check(fop, &mask);
+ if (fop->error != 0) {
+ if (mask != 0) {
+ if (fop->id == GF_FOP_ENTRYLK) {
+ ec_entrylk(fop->frame, fop->xl, mask, 1,
ec_lock_unlocked, NULL, fop->str[0],
&fop->loc[0], fop->str[1],
ENTRYLK_UNLOCK, fop->entrylk_type,
fop->xdata);
- }
- else
- {
- ec_fentrylk(fop->req_frame, fop->xl, mask, 1,
+ } else {
+ ec_fentrylk(fop->frame, fop->xl, mask, 1,
ec_lock_unlocked, NULL, fop->str[0],
fop->fd, fop->str[1], ENTRYLK_UNLOCK,
fop->entrylk_type, fop->xdata);
}
}
- if (fop->error > 0)
- {
- return EC_STATE_REPORT;
- }
-
- fop->error = 0;
+ if (fop->error < 0) {
+ fop->error = 0;
- fop->entrylk_cmd = ENTRYLK_LOCK;
+ fop->entrylk_cmd = ENTRYLK_LOCK;
- ec_dispatch_inc(fop);
+ ec_dispatch_inc(fop);
- return EC_STATE_PREPARE_ANSWER;
+ return EC_STATE_PREPARE_ANSWER;
+ }
+ }
+ } else {
+ cbk = fop->answer;
+ if (cbk == NULL) {
+ ec_fop_set_error(fop, EIO);
+ } else if (cbk->op_ret < 0) {
+ ec_fop_set_error(fop, cbk->op_errno);
}
}
@@ -279,8 +240,6 @@ int32_t ec_manager_entrylk(ec_fop_data_t * fop, int32_t state)
}
}
- ec_wait_winds(fop);
-
return EC_STATE_END;
case -EC_STATE_INIT:
@@ -306,8 +265,6 @@ int32_t ec_manager_entrylk(ec_fop_data_t * fop, int32_t state)
}
}
- ec_wait_winds(fop);
-
return EC_STATE_END;
default:
@@ -422,8 +379,6 @@ int32_t ec_fentrylk_cbk(call_frame_t * frame, void * cookie, xlator_t * this,
op_errno);
if (cbk != NULL)
{
- uintptr_t mask;
-
if (xdata != NULL)
{
cbk->xdata = dict_ref(xdata);
@@ -436,13 +391,7 @@ int32_t ec_fentrylk_cbk(call_frame_t * frame, void * cookie, xlator_t * this,
}
}
- mask = ec_lock_handler(fop, cbk, NULL);
- if (mask != 0)
- {
- ec_fentrylk(fop->req_frame, fop->xl, mask, 1, ec_lock_unlocked,
- NULL, fop->str[0], fop->fd, fop->str[1],
- ENTRYLK_UNLOCK, fop->entrylk_type, fop->xdata);
- }
+ ec_combine(cbk, NULL);
}
out:
@@ -572,8 +521,6 @@ int32_t ec_inodelk_cbk(call_frame_t * frame, void * cookie, xlator_t * this,
op_errno);
if (cbk != NULL)
{
- uintptr_t mask;
-
if (xdata != NULL)
{
cbk->xdata = dict_ref(xdata);
@@ -586,23 +533,7 @@ int32_t ec_inodelk_cbk(call_frame_t * frame, void * cookie, xlator_t * this,
}
}
- mask = ec_lock_handler(fop, cbk, NULL);
- if (mask != 0)
- {
- ec_t * ec = fop->xl->private;
- struct gf_flock flock;
-
- flock.l_type = F_UNLCK;
- flock.l_whence = fop->flock.l_whence;
- flock.l_start = fop->flock.l_start * ec->fragments;
- flock.l_len = fop->flock.l_len * ec->fragments;
- flock.l_pid = 0;
- flock.l_owner.len = 0;
-
- ec_inodelk(fop->req_frame, fop->xl, mask, 1, ec_lock_unlocked,
- NULL, fop->str[0], &fop->loc[0], F_SETLK, &flock,
- fop->xdata);
- }
+ ec_combine(cbk, NULL);
}
out:
@@ -649,18 +580,13 @@ int32_t ec_manager_inodelk(ec_fop_data_t * fop, int32_t state)
return EC_STATE_PREPARE_ANSWER;
case EC_STATE_PREPARE_ANSWER:
- cbk = fop->answer;
- if ((cbk == NULL) ||
- ((cbk->op_ret < 0) && (cbk->op_errno == EAGAIN)))
- {
+ if (fop->flock.l_type != F_UNLCK) {
uintptr_t mask;
- fop->error = ec_lock_check(fop, &cbk, &mask);
- if (fop->error != 0)
- {
- if (mask != 0)
- {
- ec_t * ec = fop->xl->private;
+ fop->error = ec_lock_check(fop, &mask);
+ if (fop->error != 0) {
+ if (mask != 0) {
+ ec_t *ec = fop->xl->private;
struct gf_flock flock;
flock.l_type = F_UNLCK;
@@ -670,32 +596,33 @@ int32_t ec_manager_inodelk(ec_fop_data_t * fop, int32_t state)
flock.l_pid = 0;
flock.l_owner.len = 0;
- if (fop->id == GF_FOP_INODELK)
- {
- ec_inodelk(fop->req_frame, fop->xl, mask, 1,
+ if (fop->id == GF_FOP_INODELK) {
+ ec_inodelk(fop->frame, fop->xl, mask, 1,
ec_lock_unlocked, NULL, fop->str[0],
&fop->loc[0], F_SETLK, &flock,
fop->xdata);
- }
- else
- {
- ec_finodelk(fop->req_frame, fop->xl, mask, 1,
+ } else {
+ ec_finodelk(fop->frame, fop->xl, mask, 1,
ec_lock_unlocked, NULL, fop->str[0],
fop->fd, F_SETLK, &flock, fop->xdata);
}
}
- if (fop->error > 0)
- {
- return EC_STATE_REPORT;
- }
+ if (fop->error < 0) {
+ fop->error = 0;
- fop->error = 0;
+ fop->int32 = F_SETLKW;
- fop->int32 = F_SETLKW;
+ ec_dispatch_inc(fop);
- ec_dispatch_inc(fop);
-
- return EC_STATE_PREPARE_ANSWER;
+ return EC_STATE_PREPARE_ANSWER;
+ }
+ }
+ } else {
+ cbk = fop->answer;
+ if (cbk == NULL) {
+ ec_fop_set_error(fop, EIO);
+ } else if (cbk->op_ret < 0) {
+ ec_fop_set_error(fop, cbk->op_errno);
}
}
@@ -723,8 +650,6 @@ int32_t ec_manager_inodelk(ec_fop_data_t * fop, int32_t state)
}
}
- ec_wait_winds(fop);
-
return EC_STATE_END;
case -EC_STATE_INIT:
@@ -750,8 +675,6 @@ int32_t ec_manager_inodelk(ec_fop_data_t * fop, int32_t state)
}
}
- ec_wait_winds(fop);
-
return EC_STATE_END;
default:
@@ -869,8 +792,6 @@ int32_t ec_finodelk_cbk(call_frame_t * frame, void * cookie, xlator_t * this,
op_errno);
if (cbk != NULL)
{
- uintptr_t mask;
-
if (xdata != NULL)
{
cbk->xdata = dict_ref(xdata);
@@ -883,23 +804,7 @@ int32_t ec_finodelk_cbk(call_frame_t * frame, void * cookie, xlator_t * this,
}
}
- mask = ec_lock_handler(fop, cbk, NULL);
- if (mask != 0)
- {
- ec_t * ec = fop->xl->private;
- struct gf_flock flock;
-
- flock.l_type = F_UNLCK;
- flock.l_whence = fop->flock.l_whence;
- flock.l_start = fop->flock.l_start * ec->fragments;
- flock.l_len = fop->flock.l_len * ec->fragments;
- flock.l_pid = 0;
- flock.l_owner.len = 0;
-
- ec_finodelk(fop->req_frame, fop->xl, mask, 1, ec_lock_unlocked,
- NULL, fop->str[0], fop->fd, F_SETLK, &flock,
- fop->xdata);
- }
+ ec_combine(cbk, NULL);
}
out:
@@ -1047,8 +952,6 @@ int32_t ec_lk_cbk(call_frame_t * frame, void * cookie, xlator_t * this,
op_errno);
if (cbk != NULL)
{
- uintptr_t mask;
-
if (op_ret >= 0)
{
if (flock != NULL)
@@ -1078,22 +981,7 @@ int32_t ec_lk_cbk(call_frame_t * frame, void * cookie, xlator_t * this,
}
}
- mask = ec_lock_handler(fop, cbk, ec_combine_lk);
- if (mask != 0)
- {
- ec_t * ec = fop->xl->private;
- struct gf_flock flock;
-
- flock.l_type = F_UNLCK;
- flock.l_whence = fop->flock.l_whence;
- flock.l_start = fop->flock.l_start * ec->fragments;
- flock.l_len = fop->flock.l_len * ec->fragments;
- flock.l_pid = 0;
- flock.l_owner.len = 0;
-
- ec_lk(fop->req_frame, fop->xl, mask, 1, ec_lock_lk_unlocked, NULL,
- fop->fd, F_SETLK, &flock, fop->xdata);
- }
+ ec_combine(cbk, ec_combine_lk);
}
out:
@@ -1139,18 +1027,13 @@ int32_t ec_manager_lk(ec_fop_data_t * fop, int32_t state)
return EC_STATE_PREPARE_ANSWER;
case EC_STATE_PREPARE_ANSWER:
- cbk = fop->answer;
- if ((cbk == NULL) ||
- ((cbk->op_ret < 0) && (cbk->op_errno == EAGAIN)))
- {
+ if (fop->flock.l_type != F_UNLCK) {
uintptr_t mask;
- fop->error = ec_lock_check(fop, &cbk, &mask);
- if (fop->error != 0)
- {
- if (mask != 0)
- {
- ec_t * ec = fop->xl->private;
+ fop->error = ec_lock_check(fop, &mask);
+ if (fop->error != 0) {
+ if (mask != 0) {
+ ec_t *ec = fop->xl->private;
struct gf_flock flock;
flock.l_type = F_UNLCK;
@@ -1160,22 +1043,26 @@ int32_t ec_manager_lk(ec_fop_data_t * fop, int32_t state)
flock.l_pid = 0;
flock.l_owner.len = 0;
- ec_lk(fop->req_frame, fop->xl, mask, 1,
+ ec_lk(fop->frame, fop->xl, mask, 1,
ec_lock_lk_unlocked, NULL, fop->fd, F_SETLK,
&flock, fop->xdata);
}
- if (fop->error > 0)
- {
- return EC_STATE_REPORT;
- }
-
- fop->error = 0;
+ if (fop->error < 0) {
+ fop->error = 0;
- fop->int32 = F_SETLKW;
+ fop->int32 = F_SETLKW;
- ec_dispatch_inc(fop);
+ ec_dispatch_inc(fop);
- return EC_STATE_PREPARE_ANSWER;
+ return EC_STATE_PREPARE_ANSWER;
+ }
+ }
+ } else {
+ cbk = fop->answer;
+ if (cbk == NULL) {
+ ec_fop_set_error(fop, EIO);
+ } else if (cbk->op_ret < 0) {
+ ec_fop_set_error(fop, cbk->op_errno);
}
}
@@ -1192,8 +1079,6 @@ int32_t ec_manager_lk(ec_fop_data_t * fop, int32_t state)
cbk->op_errno, &cbk->flock, cbk->xdata);
}
- ec_wait_winds(fop);
-
return EC_STATE_END;
case -EC_STATE_INIT:
@@ -1208,8 +1093,6 @@ int32_t ec_manager_lk(ec_fop_data_t * fop, int32_t state)
NULL, NULL);
}
- ec_wait_winds(fop);
-
return EC_STATE_END;
default:
generated by cgit (git 2.34.1) at 2024-11-17 15:00:18 +0000