[PATCH 20/41] afs: Rename some fields

From: David Howells
Date: Thu Nov 09 2023 - 10:43:07 EST

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Rename the ->index and ->untried fields of the afs_vl_cursor and
afs_operation struct to ->server_index and ->untried_servers to avoid
confusion with address iteration fields when those get folded in.

Signed-off-by: David Howells <dhowells@xxxxxxxxxx>
cc: Marc Dionne <marc.dionne@xxxxxxxxxxxx>
cc: linux-afs@xxxxxxxxxxxxxxxxxxx
---
fs/afs/internal.h | 8 ++++----
fs/afs/rotate.c | 36 ++++++++++++++++++------------------
fs/afs/vl_rotate.c | 32 ++++++++++++++++----------------
3 files changed, 38 insertions(+), 38 deletions(-)

diff --git a/fs/afs/internal.h b/fs/afs/internal.h
index d5a26cea2358..b3353fe63250 100644
--- a/fs/afs/internal.h
+++ b/fs/afs/internal.h
@@ -746,11 +746,11 @@ struct afs_vl_cursor {
struct afs_vlserver_list *server_list; /* Current server list (pins ref) */
struct afs_vlserver *server; /* Server on which this resides */
struct key *key; /* Key for the server */
- unsigned long untried; /* Bitmask of untried servers */
+ unsigned long untried_servers; /* Bitmask of untried servers */
struct afs_error cumul_error; /* Cumulative error */
s32 call_abort_code;
- short index; /* Current server */
short call_error; /* Error from single call */
+ short server_index; /* Current server */
unsigned short flags;
#define AFS_VL_CURSOR_STOP 0x0001 /* Set to cease iteration */
#define AFS_VL_CURSOR_RETRY 0x0002 /* Set to do a retry */
@@ -863,8 +863,8 @@ struct afs_operation {
struct afs_server_list *server_list; /* Current server list (pins ref) */
struct afs_server *server; /* Server we're using (ref pinned by server_list) */
struct afs_call *call;
- unsigned long untried; /* Bitmask of untried servers */
- short index; /* Current server */
+ unsigned long untried_servers; /* Bitmask of untried servers */
+ short server_index; /* Current server */
short nr_iterations; /* Number of server iterations */
bool call_responded; /* T if the current address responded */

diff --git a/fs/afs/rotate.c b/fs/afs/rotate.c
index 1767c6e67184..fdf5e45e6a0a 100644
--- a/fs/afs/rotate.c
+++ b/fs/afs/rotate.c
@@ -32,8 +32,8 @@ static bool afs_start_fs_iteration(struct afs_operation *op,
lockdep_is_held(&op->volume->servers_lock)));
read_unlock(&op->volume->servers_lock);

- op->untried = (1UL << op->server_list->nr_servers) - 1;
- op->index = READ_ONCE(op->server_list->preferred);
+ op->untried_servers = (1UL << op->server_list->nr_servers) - 1;
+ op->server_index = READ_ONCE(op->server_list->preferred);

cb_server = vnode->cb_server;
if (cb_server) {
@@ -41,7 +41,7 @@ static bool afs_start_fs_iteration(struct afs_operation *op,
for (i = 0; i < op->server_list->nr_servers; i++) {
server = op->server_list->servers[i].server;
if (server == cb_server) {
- op->index = i;
+ op->server_index = i;
goto found_interest;
}
}
@@ -120,7 +120,7 @@ bool afs_select_fileserver(struct afs_operation *op)

_enter("OP=%x+%x,%llx,%lx[%d],%lx[%d],%d,%d",
op->debug_id, op->nr_iterations, op->volume->vid,
- op->untried, op->index,
+ op->untried_servers, op->server_index,
op->ac.tried, op->ac.index,
error, abort_code);

@@ -172,7 +172,7 @@ bool afs_select_fileserver(struct afs_operation *op)
}

write_lock(&op->volume->servers_lock);
- op->server_list->vnovol_mask |= 1 << op->index;
+ op->server_list->vnovol_mask |= 1 << op->server_index;
write_unlock(&op->volume->servers_lock);

set_bit(AFS_VOLUME_NEEDS_UPDATE, &op->volume->flags);
@@ -417,9 +417,9 @@ bool afs_select_fileserver(struct afs_operation *op)
_debug("__ VOL %llx __", op->volume->vid);

pick_server:
- _debug("pick [%lx]", op->untried);
+ _debug("pick [%lx]", op->untried_servers);

- error = afs_wait_for_fs_probes(op->server_list, op->untried);
+ error = afs_wait_for_fs_probes(op->server_list, op->untried_servers);
if (error < 0) {
afs_op_set_error(op, error);
goto failed;
@@ -429,40 +429,40 @@ bool afs_select_fileserver(struct afs_operation *op)
* callbacks, we stick with the server we're already using if we can.
*/
if (op->server) {
- _debug("server %u", op->index);
- if (test_bit(op->index, &op->untried))
+ _debug("server %u", op->server_index);
+ if (test_bit(op->server_index, &op->untried_servers))
goto selected_server;
op->server = NULL;
_debug("no server");
}

- op->index = -1;
+ op->server_index = -1;
rtt = UINT_MAX;
for (i = 0; i < op->server_list->nr_servers; i++) {
struct afs_server *s = op->server_list->servers[i].server;

- if (!test_bit(i, &op->untried) ||
+ if (!test_bit(i, &op->untried_servers) ||
!test_bit(AFS_SERVER_FL_RESPONDING, &s->flags))
continue;
if (s->probe.rtt <= rtt) {
- op->index = i;
+ op->server_index = i;
rtt = s->probe.rtt;
}
}

- if (op->index == -1)
+ if (op->server_index == -1)
goto no_more_servers;

selected_server:
- _debug("use %d", op->index);
- __clear_bit(op->index, &op->untried);
+ _debug("use %d", op->server_index);
+ __clear_bit(op->server_index, &op->untried_servers);

/* We're starting on a different fileserver from the list. We need to
* check it, create a callback intercept, find its address list and
* probe its capabilities before we use it.
*/
ASSERTCMP(op->ac.alist, ==, NULL);
- server = op->server_list->servers[op->index].server;
+ server = op->server_list->servers[op->server_index].server;

if (!afs_check_server_record(op, server))
goto failed;
@@ -504,7 +504,7 @@ bool afs_select_fileserver(struct afs_operation *op)
goto out_of_addresses;

_debug("address [%u] %u/%u %pISp",
- op->index, op->ac.index, op->ac.alist->nr_addrs,
+ op->server_index, op->ac.index, op->ac.alist->nr_addrs,
rxrpc_kernel_remote_addr(op->ac.alist->addrs[op->ac.index].peer));

op->call_responded = false;
@@ -579,7 +579,7 @@ void afs_dump_edestaddrreq(const struct afs_operation *op)
op->file[0].cb_break_before,
op->file[1].cb_break_before, op->flags, op->cumul_error.error);
pr_notice("OP: ut=%lx ix=%d ni=%u\n",
- op->untried, op->index, op->nr_iterations);
+ op->untried_servers, op->server_index, op->nr_iterations);
pr_notice("OP: call er=%d ac=%d r=%u\n",
op->call_error, op->call_abort_code, op->call_responded);

diff --git a/fs/afs/vl_rotate.c b/fs/afs/vl_rotate.c
index e8fbbeb551bb..f895eb94129e 100644
--- a/fs/afs/vl_rotate.c
+++ b/fs/afs/vl_rotate.c
@@ -78,8 +78,8 @@ static bool afs_start_vl_iteration(struct afs_vl_cursor *vc)
if (!vc->server_list->nr_servers)
return false;

- vc->untried = (1UL << vc->server_list->nr_servers) - 1;
- vc->index = -1;
+ vc->untried_servers = (1UL << vc->server_list->nr_servers) - 1;
+ vc->server_index = -1;
return true;
}

@@ -98,7 +98,7 @@ bool afs_select_vlserver(struct afs_vl_cursor *vc)
vc->nr_iterations++;

_enter("%lx[%d],%lx[%d],%d,%d",
- vc->untried, vc->index,
+ vc->untried_servers, vc->server_index,
vc->ac.tried, vc->ac.index,
error, abort_code);

@@ -131,7 +131,7 @@ bool afs_select_vlserver(struct afs_vl_cursor *vc)
/* The server went weird. */
afs_prioritise_error(&vc->cumul_error, -EREMOTEIO, abort_code);
//write_lock(&vc->cell->vl_servers_lock);
- //vc->server_list->weird_mask |= 1 << vc->index;
+ //vc->server_list->weird_mask |= 1 << vc->server_index;
//write_unlock(&vc->cell->vl_servers_lock);
goto next_server;

@@ -184,46 +184,46 @@ bool afs_select_vlserver(struct afs_vl_cursor *vc)
}

pick_server:
- _debug("pick [%lx]", vc->untried);
+ _debug("pick [%lx]", vc->untried_servers);

- error = afs_wait_for_vl_probes(vc->server_list, vc->untried);
+ error = afs_wait_for_vl_probes(vc->server_list, vc->untried_servers);
if (error < 0) {
afs_prioritise_error(&vc->cumul_error, error, 0);
goto failed;
}

/* Pick the untried server with the lowest RTT. */
- vc->index = vc->server_list->preferred;
- if (test_bit(vc->index, &vc->untried))
+ vc->server_index = vc->server_list->preferred;
+ if (test_bit(vc->server_index, &vc->untried_servers))
goto selected_server;

- vc->index = -1;
+ vc->server_index = -1;
rtt = UINT_MAX;
for (i = 0; i < vc->server_list->nr_servers; i++) {
struct afs_vlserver *s = vc->server_list->servers[i].server;

- if (!test_bit(i, &vc->untried) ||
+ if (!test_bit(i, &vc->untried_servers) ||
!test_bit(AFS_VLSERVER_FL_RESPONDING, &s->flags))
continue;
if (s->probe.rtt <= rtt) {
- vc->index = i;
+ vc->server_index = i;
rtt = s->probe.rtt;
}
}

- if (vc->index == -1)
+ if (vc->server_index == -1)
goto no_more_servers;

selected_server:
- _debug("use %d", vc->index);
- __clear_bit(vc->index, &vc->untried);
+ _debug("use %d", vc->server_index);
+ __clear_bit(vc->server_index, &vc->untried_servers);

/* We're starting on a different vlserver from the list. We need to
* check it, find its address list and probe its capabilities before we
* use it.
*/
ASSERTCMP(vc->ac.alist, ==, NULL);
- vlserver = vc->server_list->servers[vc->index].server;
+ vlserver = vc->server_list->servers[vc->server_index].server;
vc->server = vlserver;

_debug("USING VLSERVER: %s", vlserver->name);
@@ -299,7 +299,7 @@ static void afs_vl_dump_edestaddrreq(const struct afs_vl_cursor *vc)
pr_notice("DNS: src=%u st=%u lc=%x\n",
cell->dns_source, cell->dns_status, cell->dns_lookup_count);
pr_notice("VC: ut=%lx ix=%u ni=%hu fl=%hx err=%hd\n",
- vc->untried, vc->index, vc->nr_iterations, vc->flags,
+ vc->untried_servers, vc->server_index, vc->nr_iterations, vc->flags,
vc->cumul_error.error);
pr_notice("VC: call er=%d ac=%d r=%u\n",
vc->call_error, vc->call_abort_code, vc->call_responded);

Next message: David Howells: "[PATCH 24/41] afs: Add some more info to /proc/net/afs/servers"
Previous message: David Howells: "[PATCH 21/41] afs: Use peer + service_id as call address"
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Next in thread: David Howells: "[PATCH 24/41] afs: Add some more info to /proc/net/afs/servers"
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