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nfsd: fail module init on reply cache init failure

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If the reply cache initialization fails due to a kmalloc failure,
currently we try to soldier on with a reduced (or nonexistant) reply
cache.

Better to just fail immediately: the failure is then much easier to
understand and debug, and it could save us complexity in some later
code.  (But actually, it doesn't help currently because the cache is
also turned off in some odd failure cases; we should probably find a
better way to handle those failure cases some day.)

Fix some minor style problems while we're at it, and rename
nfsd_cache_init() to remove the need for a comment describing it.

Acked-by: NeilBrown <neilb@suse.de>
Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
This commit is contained in:
J. Bruce Fields
2007-11-09 14:10:56 -05:00
parent 26808d3f10
commit d5c3428b2c
3 changed files with 21 additions and 22 deletions
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11
fs/nfsd/nfsctl.c
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@@ -683,7 +683,9 @@ static int __init init_nfsd(void)
if (retval)
return retval;
nfsd_stat_init(); /* Statistics */
nfsd_cache_init(); /* RPC reply cache */
retval = nfsd_reply_cache_init();
if (retval)
goto out_free_stat;
nfsd_export_init(); /* Exports table */
nfsd_lockd_init(); /* lockd->nfsd callbacks */
nfsd_idmap_init(); /* Name to ID mapping */
@@ -700,11 +702,12 @@ static int __init init_nfsd(void)
out_free_all:
nfsd_idmap_shutdown();
nfsd_export_shutdown();
nfsd_cache_shutdown();
nfsd_reply_cache_shutdown();
remove_proc_entry("fs/nfs/exports", NULL);
remove_proc_entry("fs/nfs", NULL);
nfsd_stat_shutdown();
nfsd_lockd_shutdown();
out_free_stat:
nfsd_stat_shutdown();
nfsd4_free_slabs();
return retval;
}
@@ -712,7 +715,7 @@ out_free_all:
static void __exit exit_nfsd(void)
{
nfsd_export_shutdown();
nfsd_cache_shutdown();
nfsd_reply_cache_shutdown();
remove_proc_entry("fs/nfs/exports", NULL);
remove_proc_entry("fs/nfs", NULL);
nfsd_stat_shutdown();