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knfsd: cache unregistration needn't return error 

There's really nothing much the caller can do if cache unregistration
fails.  And indeed, all any caller does in this case is print an error
and continue.  So just return void and move the printk's inside
cache_unregister.

Acked-by: NeilBrown <neilb@suse.de>
Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
This commit is contained in:
J. Bruce Fields 2007-11-08 16:09:59 -05:00
parent d5c3428b2c
commit df95a9d4fb
6 changed files with 14 additions and 20 deletions
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6
fs/nfsd/export.c
View File

@ -1670,10 +1670,8 @@ nfsd_export_shutdown(void)
exp_writelock();
if (cache_unregister(&svc_expkey_cache))
printk(KERN_ERR "nfsd: failed to unregister expkey cache\n");
if (cache_unregister(&svc_export_cache))
printk(KERN_ERR "nfsd: failed to unregister export cache\n");
cache_unregister(&svc_expkey_cache);
cache_unregister(&svc_export_cache);
svcauth_unix_purge();
exp_writeunlock();

6
fs/nfsd/nfs4idmap.c
View File

@ -474,10 +474,8 @@ nfsd_idmap_init(void)
void
nfsd_idmap_shutdown(void)
{
if (cache_unregister(&idtoname_cache))
printk(KERN_ERR "nfsd: failed to unregister idtoname cache\n");
if (cache_unregister(&nametoid_cache))
printk(KERN_ERR "nfsd: failed to unregister nametoid cache\n");
cache_unregister(&idtoname_cache);
cache_unregister(&nametoid_cache);
}
/*

2
include/linux/sunrpc/cache.h
View File

@ -170,7 +170,7 @@ extern void cache_flush(void);
extern void cache_purge(struct cache_detail *detail);
#define NEVER (0x7FFFFFFF)
extern void cache_register(struct cache_detail *cd);
extern int cache_unregister(struct cache_detail *cd);
extern void cache_unregister(struct cache_detail *cd);
extern void qword_add(char **bpp, int *lp, char *str);
extern void qword_addhex(char **bpp, int *lp, char *buf, int blen);

6
net/sunrpc/auth_gss/svcauth_gss.c
View File

@ -1396,9 +1396,7 @@ gss_svc_init(void)
void
gss_svc_shutdown(void)
{
if (cache_unregister(&rsc_cache))
printk(KERN_ERR "auth_rpcgss: failed to unregister rsc cache\n");
if (cache_unregister(&rsi_cache))
printk(KERN_ERR "auth_rpcgss: failed to unregister rsi cache\n");
cache_unregister(&rsc_cache);
cache_unregister(&rsi_cache);
svc_auth_unregister(RPC_AUTH_GSS);
}

8
net/sunrpc/cache.c
View File

@ -343,7 +343,7 @@ void cache_register(struct cache_detail *cd)
schedule_delayed_work(&cache_cleaner, 0);
}
int cache_unregister(struct cache_detail *cd)
void cache_unregister(struct cache_detail *cd)
{
cache_purge(cd);
spin_lock(&cache_list_lock);
@ -351,7 +351,7 @@ int cache_unregister(struct cache_detail *cd)
if (cd->entries || atomic_read(&cd->inuse)) {
write_unlock(&cd->hash_lock);
spin_unlock(&cache_list_lock);
return -EBUSY;
goto out;
}
if (current_detail == cd)
current_detail = NULL;
@ -373,7 +373,9 @@ int cache_unregister(struct cache_detail *cd)
/* module must be being unloaded so its safe to kill the worker */
cancel_delayed_work_sync(&cache_cleaner);
}
return 0;
return;
out:
printk(KERN_ERR "nfsd: failed to unregister %s cache\n", cd->name);
}
/* clean cache tries to find something to clean

6
net/sunrpc/sunrpc_syms.c
View File

@ -98,10 +98,8 @@ cleanup_sunrpc(void)
cleanup_socket_xprt();
unregister_rpc_pipefs();
rpc_destroy_mempool();
if (cache_unregister(&ip_map_cache))
printk(KERN_ERR "sunrpc: failed to unregister ip_map cache\n");
if (cache_unregister(&unix_gid_cache))
printk(KERN_ERR "sunrpc: failed to unregister unix_gid cache\n");
cache_unregister(&ip_map_cache);
cache_unregister(&unix_gid_cache);
#ifdef RPC_DEBUG
rpc_unregister_sysctl();
#endif