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-rw-r--r--fs/afs/vlocation.c102
1 files changed, 36 insertions, 66 deletions
diff --git a/fs/afs/vlocation.c b/fs/afs/vlocation.c
index 782ee7c600ca..e48728c92175 100644
--- a/fs/afs/vlocation.c
+++ b/fs/afs/vlocation.c
@@ -1,4 +1,4 @@
-/* vlocation.c: volume location management
+/* volume location management
*
* Copyright (C) 2002 Red Hat, Inc. All Rights Reserved.
* Written by David Howells (dhowells@redhat.com)
@@ -73,7 +73,6 @@ struct cachefs_index_def afs_vlocation_cache_index_def = {
};
#endif
-/*****************************************************************************/
/*
* iterate through the VL servers in a cell until one of them admits knowing
* about the volume in question
@@ -146,13 +145,11 @@ static int afs_vlocation_access_vl_by_name(struct afs_vlocation *vlocation,
cell->vl_curr_svix %= cell->vl_naddrs;
}
- out:
+out:
_leave(" = %d", ret);
return ret;
+}
-} /* end afs_vlocation_access_vl_by_name() */
-
-/*****************************************************************************/
/*
* iterate through the VL servers in a cell until one of them admits knowing
* about the volume in question
@@ -225,13 +222,11 @@ static int afs_vlocation_access_vl_by_id(struct afs_vlocation *vlocation,
cell->vl_curr_svix %= cell->vl_naddrs;
}
- out:
+out:
_leave(" = %d", ret);
return ret;
+}
-} /* end afs_vlocation_access_vl_by_id() */
-
-/*****************************************************************************/
/*
* lookup volume location
* - caller must have cell->vol_sem write-locked
@@ -321,7 +316,7 @@ int afs_vlocation_lookup(struct afs_cell *cell,
goto found_on_vlserver;
- found_in_graveyard:
+found_in_graveyard:
/* found in the graveyard - resurrect */
_debug("found in graveyard");
atomic_inc(&vlocation->usage);
@@ -331,16 +326,16 @@ int afs_vlocation_lookup(struct afs_cell *cell,
afs_kafstimod_del_timer(&vlocation->timeout);
goto active;
- found_in_memory:
+found_in_memory:
/* found in memory - check to see if it's active */
_debug("found in memory");
atomic_inc(&vlocation->usage);
- active:
+active:
active = 1;
#ifdef AFS_CACHING_SUPPORT
- found_in_cache:
+found_in_cache:
#endif
/* try to look up a cached volume in the cell VL databases by ID */
_debug("found in cache");
@@ -364,16 +359,13 @@ int afs_vlocation_lookup(struct afs_cell *cell,
if (vlocation->vldb.vidmask & AFS_VOL_VTM_RW) {
vid = vlocation->vldb.vid[0];
voltype = AFSVL_RWVOL;
- }
- else if (vlocation->vldb.vidmask & AFS_VOL_VTM_RO) {
+ } else if (vlocation->vldb.vidmask & AFS_VOL_VTM_RO) {
vid = vlocation->vldb.vid[1];
voltype = AFSVL_ROVOL;
- }
- else if (vlocation->vldb.vidmask & AFS_VOL_VTM_BAK) {
+ } else if (vlocation->vldb.vidmask & AFS_VOL_VTM_BAK) {
vid = vlocation->vldb.vid[2];
voltype = AFSVL_BACKVOL;
- }
- else {
+ } else {
BUG();
vid = 0;
voltype = 0;
@@ -400,7 +392,7 @@ int afs_vlocation_lookup(struct afs_cell *cell,
goto error;
}
- found_on_vlserver:
+found_on_vlserver:
_debug("Done VL Lookup: %*.*s %02x { %08x(%x) %08x(%x) %08x(%x) }",
namesz, namesz, name,
vldb.vidmask,
@@ -430,12 +422,11 @@ int afs_vlocation_lookup(struct afs_cell *cell,
_leave(" = 0 (%p)",vlocation);
return 0;
- error:
+error:
if (vlocation) {
if (active) {
__afs_put_vlocation(vlocation);
- }
- else {
+ } else {
list_del(&vlocation->link);
#ifdef AFS_CACHING_SUPPORT
cachefs_relinquish_cookie(vlocation->cache, 0);
@@ -447,9 +438,8 @@ int afs_vlocation_lookup(struct afs_cell *cell,
_leave(" = %d", ret);
return ret;
-} /* end afs_vlocation_lookup() */
+}
-/*****************************************************************************/
/*
* finish using a volume location record
* - caller must have cell->vol_sem write-locked
@@ -489,9 +479,8 @@ static void __afs_put_vlocation(struct afs_vlocation *vlocation)
spin_unlock(&cell->vl_gylock);
_leave(" [killed]");
-} /* end __afs_put_vlocation() */
+}
-/*****************************************************************************/
/*
* finish using a volume location record
*/
@@ -504,9 +493,8 @@ void afs_put_vlocation(struct afs_vlocation *vlocation)
__afs_put_vlocation(vlocation);
up_write(&cell->vl_sem);
}
-} /* end afs_put_vlocation() */
+}
-/*****************************************************************************/
/*
* timeout vlocation record
* - removes from the cell's graveyard if the usage count is zero
@@ -543,9 +531,8 @@ void afs_vlocation_do_timeout(struct afs_vlocation *vlocation)
kfree(vlocation);
_leave(" [destroyed]");
-} /* end afs_vlocation_do_timeout() */
+}
-/*****************************************************************************/
/*
* send an update operation to the currently selected server
*/
@@ -564,16 +551,13 @@ static int afs_vlocation_update_begin(struct afs_vlocation *vlocation)
if (vlocation->vldb.vidmask & AFS_VOL_VTM_RW) {
vid = vlocation->vldb.vid[0];
voltype = AFSVL_RWVOL;
- }
- else if (vlocation->vldb.vidmask & AFS_VOL_VTM_RO) {
+ } else if (vlocation->vldb.vidmask & AFS_VOL_VTM_RO) {
vid = vlocation->vldb.vid[1];
voltype = AFSVL_ROVOL;
- }
- else if (vlocation->vldb.vidmask & AFS_VOL_VTM_BAK) {
+ } else if (vlocation->vldb.vidmask & AFS_VOL_VTM_BAK) {
vid = vlocation->vldb.vid[2];
voltype = AFSVL_BACKVOL;
- }
- else {
+ } else {
BUG();
vid = 0;
voltype = 0;
@@ -604,9 +588,8 @@ static int afs_vlocation_update_begin(struct afs_vlocation *vlocation)
_leave(" = %d", ret);
return ret;
-} /* end afs_vlocation_update_begin() */
+}
-/*****************************************************************************/
/*
* abandon updating a VL record
* - does not restart the update timer
@@ -634,9 +617,8 @@ static void afs_vlocation_update_abandon(struct afs_vlocation *vlocation,
spin_unlock(&afs_vlocation_update_lock);
_leave("");
-} /* end afs_vlocation_update_abandon() */
+}
-/*****************************************************************************/
/*
* handle periodic update timeouts and busy retry timeouts
* - called from kafstimod
@@ -663,8 +645,7 @@ static void afs_vlocation_update_timer(struct afs_timer *timer)
if (afs_vlocation_update) {
list_add(&vlocation->upd_op.link,
&afs_vlocation_update_pendq);
- }
- else {
+ } else {
afs_get_vlocation(vlocation);
afs_vlocation_update = vlocation;
vlocation->upd_state = AFS_VLUPD_INPROGRESS;
@@ -706,16 +687,13 @@ static void afs_vlocation_update_timer(struct afs_timer *timer)
_leave("");
return;
- out_unlock2:
+out_unlock2:
spin_unlock(&afs_vlocation_update_lock);
- out_unlock1:
+out_unlock1:
spin_unlock(&vlocation->cell->vl_gylock);
_leave("");
- return;
-
-} /* end afs_vlocation_update_timer() */
+}
-/*****************************************************************************/
/*
* attend to an update operation upon which an event happened
* - called in kafsasyncd context
@@ -818,7 +796,7 @@ static void afs_vlocation_update_attend(struct afs_async_op *op)
}
/* try contacting the next server */
- try_next:
+try_next:
vlocation->upd_busy_cnt = 0;
/* discard the server record */
@@ -856,15 +834,13 @@ static void afs_vlocation_update_attend(struct afs_async_op *op)
}
/* abandon the update */
- abandon:
+abandon:
afs_vlocation_update_abandon(vlocation, AFS_VLUPD_SLEEP, ret);
afs_kafstimod_add_timer(&vlocation->upd_timer, HZ * 10);
afs_put_vlocation(vlocation);
_leave(" [abandoned]");
+}
-} /* end afs_vlocation_update_attend() */
-
-/*****************************************************************************/
/*
* deal with an update operation being discarded
* - called in kafsasyncd context when it's dying due to rmmod
@@ -883,9 +859,8 @@ static void afs_vlocation_update_discard(struct afs_async_op *op)
afs_put_vlocation(vlocation);
_leave("");
-} /* end afs_vlocation_update_discard() */
+}
-/*****************************************************************************/
/*
* match a VLDB record stored in the cache
* - may also load target from entry
@@ -908,9 +883,7 @@ static cachefs_match_val_t afs_vlocation_cache_match(void *target,
vlocation->valid = 1;
_leave(" = SUCCESS [c->m]");
return CACHEFS_MATCH_SUCCESS;
- }
- /* need to update cache if cached info differs */
- else if (memcmp(&vlocation->vldb, vldb, sizeof(*vldb)) != 0) {
+ } else if (memcmp(&vlocation->vldb, vldb, sizeof(*vldb)) != 0) {
/* delete if VIDs for this name differ */
if (memcmp(&vlocation->vldb.vid,
&vldb->vid,
@@ -921,8 +894,7 @@ static cachefs_match_val_t afs_vlocation_cache_match(void *target,
_leave(" = UPDATE");
return CACHEFS_MATCH_SUCCESS_UPDATE;
- }
- else {
+ } else {
_leave(" = SUCCESS");
return CACHEFS_MATCH_SUCCESS;
}
@@ -930,10 +902,9 @@ static cachefs_match_val_t afs_vlocation_cache_match(void *target,
_leave(" = FAILED");
return CACHEFS_MATCH_FAILED;
-} /* end afs_vlocation_cache_match() */
+}
#endif
-/*****************************************************************************/
/*
* update a VLDB record stored in the cache
*/
@@ -946,6 +917,5 @@ static void afs_vlocation_cache_update(void *source, void *entry)
_enter("");
*vldb = vlocation->vldb;
-
-} /* end afs_vlocation_cache_update() */
+}
#endif
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.