projects/linux·commit b6669737

Merge branch 'for-3.9' of git://linux-nfs.org/~bfields/linux

b6669737 · Linus Torvalds <[email protected]> · 2013-02-28 18:02:55 -08:00

Pull nfsd changes from J Bruce Fields:
 "Miscellaneous bugfixes, plus:

   - An overhaul of the DRC cache by Jeff Layton.  The main effect is
     just to make it larger.  This decreases the chances of intermittent
     errors especially in the UDP case.  But we'll need to watch for any
     reports of performance regressions.

   - Containerized nfsd: with some limitations, we now support
     per-container nfs-service, thanks to extensive work from Stanislav
     Kinsbursky over the last year."

Some notes about conflicts, since there were *two* non-data semantic
conflicts here:

 - idr_remove_all() had been added by a memory leak fix, but has since
   become deprecated since idr_destroy() does it for us now.

 - xs_local_connect() had been added by this branch to make AF_LOCAL
   connections be synchronous, but in the meantime Trond had changed the
   calling convention in order to avoid a RCU dereference.

There were a couple of more obvious actual source-level conflicts due to
the hlist traversal changes and one just due to code changes next to
each other, but those were trivial.

* 'for-3.9' of git://linux-nfs.org/~bfields/linux: (49 commits)
  SUNRPC: make AF_LOCAL connect synchronous
  nfsd: fix compiler warning about ambiguous types in nfsd_cache_csum
  svcrpc: fix rpc server shutdown races
  svcrpc: make svc_age_temp_xprts enqueue under sv_lock
  lockd: nlmclnt_reclaim(): avoid stack overflow
  nfsd: enable NFSv4 state in containers
  nfsd: disable usermode helper client tracker in container
  nfsd: use proper net while reading "exports" file
  nfsd: containerize NFSd filesystem
  nfsd: fix comments on nfsd_cache_lookup
  SUNRPC: move cache_detail->cache_request callback call to cache_read()
  SUNRPC: remove "cache_request" argument in sunrpc_cache_pipe_upcall() function
  SUNRPC: rework cache upcall logic
  SUNRPC: introduce cache_detail->cache_request callback
  NFS: simplify and clean cache library
  NFS: use SUNRPC cache creation and destruction helper for DNS cache
  nfsd4: free_stid can be static
  nfsd: keep a checksum of the first 256 bytes of request
  sunrpc: trim off trailing checksum before returning decrypted or integrity authenticated buffer
  sunrpc: fix comment in struct xdr_buf definition
  ...
Commit
b6669737d3db7df79fad07180837c23dbe581db5
Parents
1cf0209c · dc107402

Merge commit. Changes below are compared with the first parent: 1cf0209c.

Changes

42 files changed · +831 −507

FileStatusAddDelContent
fs/lockd/clntlock.cmodified+12−2View file
fs/lockd/clntproc.cmodified+2−4View file
fs/lockd/host.cmodified+1−0View file
fs/lockd/mon.cmodified+1−0View file
fs/lockd/svcsubs.cmodified+1−1View file
fs/nfs/cache_lib.cmodified+3−9View file
fs/nfs/cache_lib.hmodified+0−2View file
fs/nfs/dns_resolve.cmodified+28−39View file
fs/nfs/nfs4client.cmodified+1−0View file
fs/nfs/nfs4filelayoutdev.cmodified+1−0View file
fs/nfs/nfs4namespace.cmodified+1−0View file
fs/nfs/super.cmodified+1−0View file
fs/nfsd/cache.hmodified+14−3View file
fs/nfsd/export.cmodified+4−12View file
fs/nfsd/fault_inject.cmodified+1−1View file
fs/nfsd/nfs4idmap.cmodified+2−14View file
fs/nfsd/nfs4proc.cmodified+4−3View file
fs/nfsd/nfs4recover.cmodified+6−0View file
fs/nfsd/nfs4state.cmodified+58−43View file
fs/nfsd/nfs4xdr.cmodified+8−13View file
fs/nfsd/nfscache.cmodified+277−75View file
fs/nfsd/nfsctl.cmodified+60−21View file
fs/nfsd/nfssvc.cmodified+2−4View file
fs/nfsd/xdr4.hmodified+1−1View file
include/linux/lockd/lockd.hmodified+2−1View file
include/linux/sunrpc/addr.hadded+170−0View file
include/linux/sunrpc/cache.hmodified+5−5View file
include/linux/sunrpc/clnt.hmodified+0−152View file
include/linux/sunrpc/svc.hmodified+1−0View file
include/linux/sunrpc/xdr.hmodified+2−1View file
net/sunrpc/addr.cmodified+2−1View file
net/sunrpc/auth_gss/gss_krb5_wrap.cmodified+2−0View file
net/sunrpc/auth_gss/svcauth_gss.cmodified+9−9View file
net/sunrpc/cache.cmodified+29−22View file
net/sunrpc/clnt.cmodified+1−0View file
net/sunrpc/rpcb_clnt.cmodified+1−0View file
net/sunrpc/svc.cmodified+4−9View file
net/sunrpc/svc_xprt.cmodified+42−39View file
net/sunrpc/svcauth_unix.cmodified+3−13View file
net/sunrpc/xdr.cmodified+41−0View file
net/sunrpc/xprtrdma/transport.cmodified+1−0View file
net/sunrpc/xprtsock.cmodified+27−8View file

Only the first 600 diff lines are shown. Download the complete patch.

fs/lockd/clntlock.c

View file
diff --git a/fs/lockd/clntlock.c b/fs/lockd/clntlock.c
index a271740..0796c45 100644
--- a/fs/lockd/clntlock.c
+++ b/fs/lockd/clntlock.c
@@ -11,7 +11,7 @@
#include <linux/slab.h>
#include <linux/time.h>
#include <linux/nfs_fs.h>
-#include <linux/sunrpc/clnt.h>
+#include <linux/sunrpc/addr.h>
#include <linux/sunrpc/svc.h>
#include <linux/lockd/lockd.h>
#include <linux/kthread.h>
@@ -220,10 +220,19 @@ reclaimer(void *ptr)
{
struct nlm_host *host = (struct nlm_host *) ptr;
struct nlm_wait *block;
+ struct nlm_rqst *req;
struct file_lock *fl, *next;
u32 nsmstate;
struct net *net = host->net;
+ req = kmalloc(sizeof(*req), GFP_KERNEL);
+ if (!req) {
+ printk(KERN_ERR "lockd: reclaimer unable to alloc memory."
+ " Locks for %s won't be reclaimed!\n",
+ host->h_name);
+ return 0;
+ }
+
allow_signal(SIGKILL);
down_write(&host->h_rwsem);
@@ -253,7 +262,7 @@ restart:
*/
if (signalled())
continue;
- if (nlmclnt_reclaim(host, fl) != 0)
+ if (nlmclnt_reclaim(host, fl, req) != 0)
continue;
list_add_tail(&fl->fl_u.nfs_fl.list, &host->h_granted);
if (host->h_nsmstate != nsmstate) {
@@ -279,5 +288,6 @@ restart:
/* Release host handle after use */
nlmclnt_release_host(host);
lockd_down(net);
+ kfree(req);
return 0;
}

fs/lockd/clntproc.c

View file
diff --git a/fs/lockd/clntproc.c b/fs/lockd/clntproc.c
index 3662771..7e529c3 100644
--- a/fs/lockd/clntproc.c
+++ b/fs/lockd/clntproc.c
@@ -618,17 +618,15 @@ out_unlock:
* RECLAIM: Try to reclaim a lock
*/
int
-nlmclnt_reclaim(struct nlm_host *host, struct file_lock *fl)
+nlmclnt_reclaim(struct nlm_host *host, struct file_lock *fl,
+ struct nlm_rqst *req)
{
- struct nlm_rqst reqst, *req;
int status;
- req = &reqst;
memset(req, 0, sizeof(*req));
locks_init_lock(&req->a_args.lock.fl);
locks_init_lock(&req->a_res.lock.fl);
req->a_host = host;
- req->a_flags = 0;
/* Set up the argument struct */
nlmclnt_setlockargs(req, fl);

fs/lockd/host.c

View file
diff --git a/fs/lockd/host.c b/fs/lockd/host.c
index abdd75d..969d589 100644
--- a/fs/lockd/host.c
+++ b/fs/lockd/host.c
@@ -13,6 +13,7 @@
#include <linux/in.h>
#include <linux/in6.h>
#include <linux/sunrpc/clnt.h>
+#include <linux/sunrpc/addr.h>
#include <linux/sunrpc/svc.h>
#include <linux/lockd/lockd.h>
#include <linux/mutex.h>

fs/lockd/mon.c

View file
diff --git a/fs/lockd/mon.c b/fs/lockd/mon.c
index 3c2cfc6..1812f02 100644
--- a/fs/lockd/mon.c
+++ b/fs/lockd/mon.c
@@ -12,6 +12,7 @@
#include <linux/slab.h>
#include <linux/sunrpc/clnt.h>
+#include <linux/sunrpc/addr.h>
#include <linux/sunrpc/xprtsock.h>
#include <linux/sunrpc/svc.h>
#include <linux/lockd/lockd.h>

fs/lockd/svcsubs.c

View file
diff --git a/fs/lockd/svcsubs.c b/fs/lockd/svcsubs.c
index d17bb62..97e8741 100644
--- a/fs/lockd/svcsubs.c
+++ b/fs/lockd/svcsubs.c
@@ -13,7 +13,7 @@
#include <linux/slab.h>
#include <linux/mutex.h>
#include <linux/sunrpc/svc.h>
-#include <linux/sunrpc/clnt.h>
+#include <linux/sunrpc/addr.h>
#include <linux/nfsd/nfsfh.h>
#include <linux/nfsd/export.h>
#include <linux/lockd/lockd.h>

fs/nfs/cache_lib.c

View file
diff --git a/fs/nfs/cache_lib.c b/fs/nfs/cache_lib.c
index 862a2f1..5f7b053 100644
--- a/fs/nfs/cache_lib.c
+++ b/fs/nfs/cache_lib.c
@@ -128,10 +128,13 @@ int nfs_cache_register_net(struct net *net, struct cache_detail *cd)
struct super_block *pipefs_sb;
int ret = 0;
+ sunrpc_init_cache_detail(cd);
pipefs_sb = rpc_get_sb_net(net);
if (pipefs_sb) {
ret = nfs_cache_register_sb(pipefs_sb, cd);
rpc_put_sb_net(net);
+ if (ret)
+ sunrpc_destroy_cache_detail(cd);
}
return ret;
}
@@ -151,14 +154,5 @@ void nfs_cache_unregister_net(struct net *net, struct cache_detail *cd)
nfs_cache_unregister_sb(pipefs_sb, cd);
rpc_put_sb_net(net);
}
-}
-
-void nfs_cache_init(struct cache_detail *cd)
-{
- sunrpc_init_cache_detail(cd);
-}
-
-void nfs_cache_destroy(struct cache_detail *cd)
-{
sunrpc_destroy_cache_detail(cd);
}

fs/nfs/cache_lib.h

View file
diff --git a/fs/nfs/cache_lib.h b/fs/nfs/cache_lib.h
index 317db95..4116d2c 100644
--- a/fs/nfs/cache_lib.h
+++ b/fs/nfs/cache_lib.h
@@ -23,8 +23,6 @@ extern struct nfs_cache_defer_req *nfs_cache_defer_req_alloc(void);
extern void nfs_cache_defer_req_put(struct nfs_cache_defer_req *dreq);
extern int nfs_cache_wait_for_upcall(struct nfs_cache_defer_req *dreq);
-extern void nfs_cache_init(struct cache_detail *cd);
-extern void nfs_cache_destroy(struct cache_detail *cd);
extern int nfs_cache_register_net(struct net *net, struct cache_detail *cd);
extern void nfs_cache_unregister_net(struct net *net, struct cache_detail *cd);
extern int nfs_cache_register_sb(struct super_block *sb,

fs/nfs/dns_resolve.c

View file
diff --git a/fs/nfs/dns_resolve.c b/fs/nfs/dns_resolve.c
index ca4b11e..9455270 100644
--- a/fs/nfs/dns_resolve.c
+++ b/fs/nfs/dns_resolve.c
@@ -10,6 +10,7 @@
#include <linux/module.h>
#include <linux/sunrpc/clnt.h>
+#include <linux/sunrpc/addr.h>
#include <linux/dns_resolver.h>
#include "dns_resolve.h"
@@ -42,6 +43,7 @@ EXPORT_SYMBOL_GPL(nfs_dns_resolve_name);
#include <linux/seq_file.h>
#include <linux/inet.h>
#include <linux/sunrpc/clnt.h>
+#include <linux/sunrpc/addr.h>
#include <linux/sunrpc/cache.h>
#include <linux/sunrpc/svcauth.h>
#include <linux/sunrpc/rpc_pipe_fs.h>
@@ -142,7 +144,7 @@ static int nfs_dns_upcall(struct cache_detail *cd,
ret = nfs_cache_upcall(cd, key->hostname);
if (ret)
- ret = sunrpc_cache_pipe_upcall(cd, ch, nfs_dns_request);
+ ret = sunrpc_cache_pipe_upcall(cd, ch);
return ret;
}
@@ -351,60 +353,47 @@ ssize_t nfs_dns_resolve_name(struct net *net, char *name,
}
EXPORT_SYMBOL_GPL(nfs_dns_resolve_name);
+static struct cache_detail nfs_dns_resolve_template = {
+ .owner = THIS_MODULE,
+ .hash_size = NFS_DNS_HASHTBL_SIZE,
+ .name = "dns_resolve",
+ .cache_put = nfs_dns_ent_put,
+ .cache_upcall = nfs_dns_upcall,
+ .cache_request = nfs_dns_request,
+ .cache_parse = nfs_dns_parse,
+ .cache_show = nfs_dns_show,
+ .match = nfs_dns_match,
+ .init = nfs_dns_ent_init,
+ .update = nfs_dns_ent_update,
+ .alloc = nfs_dns_ent_alloc,
+};
+
+
int nfs_dns_resolver_cache_init(struct net *net)
{
- int err = -ENOMEM;
+ int err;
struct nfs_net *nn = net_generic(net, nfs_net_id);
- struct cache_detail *cd;
- struct cache_head **tbl;
- cd = kzalloc(sizeof(struct cache_detail), GFP_KERNEL);
- if (cd == NULL)
- goto err_cd;
-
- tbl = kzalloc(NFS_DNS_HASHTBL_SIZE * sizeof(struct cache_head *),
- GFP_KERNEL);
- if (tbl == NULL)
- goto err_tbl;
-
- cd->owner = THIS_MODULE,
- cd->hash_size = NFS_DNS_HASHTBL_SIZE,
- cd->hash_table = tbl,
- cd->name = "dns_resolve",
- cd->cache_put = nfs_dns_ent_put,
- cd->cache_upcall = nfs_dns_upcall,
- cd->cache_parse = nfs_dns_parse,
- cd->cache_show = nfs_dns_show,
- cd->match = nfs_dns_match,
- cd->init = nfs_dns_ent_init,
- cd->update = nfs_dns_ent_update,
- cd->alloc = nfs_dns_ent_alloc,
-
- nfs_cache_init(cd);
- err = nfs_cache_register_net(net, cd);
+ nn->nfs_dns_resolve = cache_create_net(&nfs_dns_resolve_template, net);
+ if (IS_ERR(nn->nfs_dns_resolve))
+ return PTR_ERR(nn->nfs_dns_resolve);
+
+ err = nfs_cache_register_net(net, nn->nfs_dns_resolve);
if (err)
goto err_reg;
- nn->nfs_dns_resolve = cd;
return 0;
err_reg:
- nfs_cache_destroy(cd);
- kfree(cd->hash_table);
-err_tbl:
- kfree(cd);
-err_cd:
+ cache_destroy_net(nn->nfs_dns_resolve, net);
return err;
}
void nfs_dns_resolver_cache_destroy(struct net *net)
{
struct nfs_net *nn = net_generic(net, nfs_net_id);
- struct cache_detail *cd = nn->nfs_dns_resolve;
- nfs_cache_unregister_net(net, cd);
- nfs_cache_destroy(cd);
- kfree(cd->hash_table);
- kfree(cd);
+ nfs_cache_unregister_net(net, nn->nfs_dns_resolve);
+ cache_destroy_net(nn->nfs_dns_resolve, net);
}
static int rpc_pipefs_event(struct notifier_block *nb, unsigned long event,

fs/nfs/nfs4client.c

View file
diff --git a/fs/nfs/nfs4client.c b/fs/nfs/nfs4client.c
index 47d1008..ac4fc9a 100644
--- a/fs/nfs/nfs4client.c
+++ b/fs/nfs/nfs4client.c
@@ -6,6 +6,7 @@
#include <linux/nfs_fs.h>
#include <linux/nfs_idmap.h>
#include <linux/nfs_mount.h>
+#include <linux/sunrpc/addr.h>
#include <linux/sunrpc/auth.h>
#include <linux/sunrpc/xprt.h>
#include <linux/sunrpc/bc_xprt.h>

fs/nfs/nfs4filelayoutdev.c

View file
diff --git a/fs/nfs/nfs4filelayoutdev.c b/fs/nfs/nfs4filelayoutdev.c
index b720064..1fe284f 100644
--- a/fs/nfs/nfs4filelayoutdev.c
+++ b/fs/nfs/nfs4filelayoutdev.c
@@ -31,6 +31,7 @@
#include <linux/nfs_fs.h>
#include <linux/vmalloc.h>
#include <linux/module.h>
+#include <linux/sunrpc/addr.h>
#include "internal.h"
#include "nfs4session.h"

fs/nfs/nfs4namespace.c

View file
diff --git a/fs/nfs/nfs4namespace.c b/fs/nfs/nfs4namespace.c
index 1e09eb7..0dd7660 100644
--- a/fs/nfs/nfs4namespace.c
+++ b/fs/nfs/nfs4namespace.c
@@ -14,6 +14,7 @@
#include <linux/slab.h>
#include <linux/string.h>
#include <linux/sunrpc/clnt.h>
+#include <linux/sunrpc/addr.h>
#include <linux/vfs.h>
#include <linux/inet.h>
#include "internal.h"

fs/nfs/super.c

View file
diff --git a/fs/nfs/super.c b/fs/nfs/super.c
index a9dc5fc..17b32b7 100644
--- a/fs/nfs/super.c
+++ b/fs/nfs/super.c
@@ -31,6 +31,7 @@
#include <linux/errno.h>
#include <linux/unistd.h>
#include <linux/sunrpc/clnt.h>
+#include <linux/sunrpc/addr.h>
#include <linux/sunrpc/stats.h>
#include <linux/sunrpc/metrics.h>
#include <linux/sunrpc/xprtsock.h>

fs/nfsd/cache.h

View file
diff --git a/fs/nfsd/cache.h b/fs/nfsd/cache.h
index 93cc9d3..87fd141 100644
--- a/fs/nfsd/cache.h
+++ b/fs/nfsd/cache.h
@@ -12,6 +12,10 @@
/*
* Representation of a reply cache entry.
+ *
+ * Note that we use a sockaddr_in6 to hold the address instead of the more
+ * typical sockaddr_storage. This is for space reasons, since sockaddr_storage
+ * is much larger than a sockaddr_in6.
*/
struct svc_cacherep {
struct hlist_node c_hash;
@@ -20,11 +24,13 @@ struct svc_cacherep {
unsigned char c_state, /* unused, inprog, done */
c_type, /* status, buffer */
c_secure : 1; /* req came from port < 1024 */
- struct sockaddr_in c_addr;
+ struct sockaddr_in6 c_addr;
__be32 c_xid;
u32 c_prot;
u32 c_proc;
u32 c_vers;
+ unsigned int c_len;
+ __wsum c_csum;
unsigned long c_timestamp;
union {
struct kvec u_vec;
@@ -46,8 +52,7 @@ enum {
enum {
RC_DROPIT,
RC_REPLY,
- RC_DOIT,
- RC_INTR
+ RC_DOIT
};
/*
@@ -67,6 +72,12 @@ enum {
*/
#define RC_DELAY (HZ/5)
+/* Cache entries expire after this time period */
+#define RC_EXPIRE (120 * HZ)
+
+/* Checksum this amount of the request */
+#define RC_CSUMLEN (256U)
+
int nfsd_reply_cache_init(void);
void nfsd_reply_cache_shutdown(void);
int nfsd_cache_lookup(struct svc_rqst *);

fs/nfsd/export.c

View file
diff --git a/fs/nfsd/export.c b/fs/nfsd/export.c
index 5681c59..5f38ea3 100644
--- a/fs/nfsd/export.c
+++ b/fs/nfsd/export.c
@@ -67,11 +67,6 @@ static void expkey_request(struct cache_detail *cd,
(*bpp)[-1] = '\n';
}
-static int expkey_upcall(struct cache_detail *cd, struct cache_head *h)
-{
- return sunrpc_cache_pipe_upcall(cd, h, expkey_request);
-}
-
static struct svc_expkey *svc_expkey_update(struct cache_detail *cd, struct svc_expkey *new,
struct svc_expkey *old);
static struct svc_expkey *svc_expkey_lookup(struct cache_detail *cd, struct svc_expkey *);
@@ -245,7 +240,7 @@ static struct cache_detail svc_expkey_cache_template = {
.hash_size = EXPKEY_HASHMAX,
.name = "nfsd.fh",
.cache_put = expkey_put,
- .cache_upcall = expkey_upcall,
+ .cache_request = expkey_request,
.cache_parse = expkey_parse,
.cache_show = expkey_show,
.match = expkey_match,
@@ -315,6 +310,7 @@ static void svc_export_put(struct kref *ref)
path_put(&exp->ex_path);
auth_domain_put(exp->ex_client);
nfsd4_fslocs_free(&exp->ex_fslocs);
+ kfree(exp->ex_uuid);
kfree(exp);
}
@@ -337,11 +333,6 @@ static void svc_export_request(struct cache_detail *cd,
(*bpp)[-1] = '\n';
}
-static int svc_export_upcall(struct cache_detail *cd, struct cache_head *h)
-{
- return sunrpc_cache_pipe_upcall(cd, h, svc_export_request);
-}
-
static struct svc_export *svc_export_update(struct svc_export *new,
struct svc_export *old);
static struct svc_export *svc_export_lookup(struct svc_export *);
@@ -674,6 +665,7 @@ static void svc_export_init(struct cache_head *cnew, struct cache_head *citem)
new->ex_fslocs.locations = NULL;
new->ex_fslocs.locations_count = 0;
new->ex_fslocs.migrated = 0;
+ new->ex_uuid = NULL;
new->cd = item->cd;
}
@@ -715,7 +707,7 @@ static struct cache_detail svc_export_cache_template = {
.hash_size = EXPORT_HASHMAX,
.name = "nfsd.export",
.cache_put = svc_export_put,
- .cache_upcall = svc_export_upcall,
+ .cache_request = svc_export_request,
.cache_parse = svc_export_parse,
.cache_show = svc_export_show,
.match = svc_export_match,

fs/nfsd/fault_inject.c

View file
diff --git a/fs/nfsd/fault_inject.c b/fs/nfsd/fault_inject.c
index 497584c..d620e7f 100644
--- a/fs/nfsd/fault_inject.c
+++ b/fs/nfsd/fault_inject.c
@@ -9,7 +9,7 @@
#include <linux/debugfs.h>
#include <linux/module.h>
#include <linux/nsproxy.h>
-#include <linux/sunrpc/clnt.h>
+#include <linux/sunrpc/addr.h>
#include <asm/uaccess.h>
#include "state.h"

fs/nfsd/nfs4idmap.c

View file
diff --git a/fs/nfsd/nfs4idmap.c b/fs/nfsd/nfs4idmap.c
index 0ce1234..4832fd8 100644
--- a/fs/nfsd/nfs4idmap.c
+++ b/fs/nfsd/nfs4idmap.c
@@ -140,12 +140,6 @@ idtoname_request(struct cache_detail *cd, struct cache_head *ch, char **bpp,
}
static int
-idtoname_upcall(struct cache_detail *cd, struct cache_head *ch)
-{
- return sunrpc_cache_pipe_upcall(cd, ch, idtoname_request);
-}
-
-static int
idtoname_match(struct cache_head *ca, struct cache_head *cb)
{
struct ent *a = container_of(ca, struct ent, h);
@@ -192,7 +186,7 @@ static struct cache_detail idtoname_cache_template = {
.hash_size = ENT_HASHMAX,
.name = "nfs4.idtoname",
.cache_put = ent_put,
- .cache_upcall = idtoname_upcall,
+ .cache_request = idtoname_request,
.cache_parse = idtoname_parse,
.cache_show = idtoname_show,
.warn_no_listener = warn_no_idmapd,
@@ -321,12 +315,6 @@ nametoid_request(struct cache_detail *cd, struct cache_head *ch, char **bpp,
}
static int
-nametoid_upcall(struct cache_detail *cd, struct cache_head *ch)
-{
- return sunrpc_cache_pipe_upcall(cd, ch, nametoid_request);
-}
-
-static int
nametoid_match(struct cache_head *ca, struct cache_head *cb)
{
struct ent *a = container_of(ca, struct ent, h);
@@ -365,7 +353,7 @@ static struct cache_detail nametoid_cache_template = {
.hash_size = ENT_HASHMAX,
.name = "nfs4.nametoid",
.cache_put = ent_put,
- .cache_upcall = nametoid_upcall,
+ .cache_request = nametoid_request,
.cache_parse = nametoid_parse,
.cache_show = nametoid_show,
.warn_no_listener = warn_no_idmapd,

fs/nfsd/nfs4proc.c

View file
diff --git a/fs/nfsd/nfs4proc.c b/fs/nfsd/nfs4proc.c
index 9d1c5db..ae73175 100644
--- a/fs/nfsd/nfs4proc.c
+++ b/fs/nfsd/nfs4proc.c
@@ -993,14 +993,15 @@ _nfsd4_verify(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
if (!buf)
return nfserr_jukebox;
+ p = buf;
status = nfsd4_encode_fattr(&cstate->current_fh,
cstate->current_fh.fh_export,
- cstate->current_fh.fh_dentry, buf,
- &count, verify->ve_bmval,
+ cstate->current_fh.fh_dentry, &p,
+ count, verify->ve_bmval,
rqstp, 0);
/* this means that nfsd4_encode_fattr() ran out of space */
- if (status == nfserr_resource && count == 0)
+ if (status == nfserr_resource)
status = nfserr_not_same;
if (status)
goto out_kfree;

fs/nfsd/nfs4recover.c

View file
diff --git a/fs/nfsd/nfs4recover.c b/fs/nfsd/nfs4recover.c
index 4914af4..899ca26 100644
--- a/fs/nfsd/nfs4recover.c
+++ b/fs/nfsd/nfs4recover.c
@@ -1185,6 +1185,12 @@ bin_to_hex_dup(const unsigned char *src, int srclen)
static int
nfsd4_umh_cltrack_init(struct net __attribute__((unused)) *net)
{
+ /* XXX: The usermode helper s not working in container yet. */
+ if (net != &init_net) {
+ WARN(1, KERN_ERR "NFSD: attempt to initialize umh client "
+ "tracking in a container!\n");
+ return -EINVAL;
+ }
return nfsd4_umh_cltrack_upcall("init", NULL, NULL);
}

fs/nfsd/nfs4state.c

View file
diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c
index 9e7103b..16d39c6 100644
--- a/fs/nfsd/nfs4state.c
+++ b/fs/nfsd/nfs4state.c
@@ -40,7 +40,7 @@
#include <linux/pagemap.h>
#include <linux/ratelimit.h>
#include <linux/sunrpc/svcauth_gss.h>
-#include <linux/sunrpc/clnt.h>
+#include <linux/sunrpc/addr.h>
#include "xdr4.h"
#include "vfs.h"
#include "current_stateid.h"
@@ -261,33 +261,46 @@ static inline int get_new_stid(struct nfs4_stid *stid)
return new_stid;
}
-static void init_stid(struct nfs4_stid *stid, struct nfs4_client *cl, unsigned char type)
+static struct nfs4_stid *nfs4_alloc_stid(struct nfs4_client *cl, struct
+kmem_cache *slab)
{
- stateid_t *s = &stid->sc_stateid;
+ struct idr *stateids = &cl->cl_stateids;
+ static int min_stateid = 0;
+ struct nfs4_stid *stid;
int new_id;
- stid->sc_type = type;
+ stid = kmem_cache_alloc(slab, GFP_KERNEL);
+ if (!stid)
+ return NULL;
+
+ if (!idr_pre_get(stateids, GFP_KERNEL))
+ goto out_free;
+ if (idr_get_new_above(stateids, stid, min_stateid, &new_id))
+ goto out_free;
stid->sc_client = cl;
- s->si_opaque.so_clid = cl->cl_clientid;
- new_id = get_new_stid(stid);
- s->si_opaque.so_id = (u32)new_id;
+ stid->sc_type = 0;
+ stid->sc_stateid.si_opaque.so_id = new_id;
+ stid->sc_stateid.si_opaque.so_clid = cl->cl_clientid;
/* Will be incremented before return to client: */
- s->si_generation = 0;
-}
-
-static struct nfs4_stid *nfs4_alloc_stid(struct nfs4_client *cl, struct kmem_cache *slab)
-{
- struct idr *stateids = &cl->cl_stateids;
+ stid->sc_stateid.si_generation = 0;
- if (!idr_pre_get(stateids, GFP_KERNEL))
- return NULL;
/*
- * Note: if we fail here (or any time between now and the time
- * we actually get the new idr), we won't need to undo the idr
- * preallocation, since the idr code caps the number of
- * preallocated entries.
+ * It shouldn't be a problem to reuse an opaque stateid value.
+ * I don't think it is for 4.1. But with 4.0 I worry that, for
+ * example, a stray write retransmission could be accepted by
+ * the server when it should have been rejected. Therefore,
+ * adopt a trick from the sctp code to attempt to maximize the
+ * amount of time until an id is reused, by ensuring they always

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fs/nfsd/nfs4xdr.c

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fs/nfsd/nfscache.c

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fs/nfsd/nfsctl.c

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fs/nfsd/nfssvc.c

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fs/nfsd/xdr4.h

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include/linux/lockd/lockd.h

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include/linux/sunrpc/addr.h

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include/linux/sunrpc/cache.h

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include/linux/sunrpc/clnt.h

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include/linux/sunrpc/svc.h

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include/linux/sunrpc/xdr.h

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net/sunrpc/addr.c

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net/sunrpc/auth_gss/gss_krb5_wrap.c

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net/sunrpc/auth_gss/svcauth_gss.c

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net/sunrpc/cache.c

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net/sunrpc/clnt.c

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net/sunrpc/rpcb_clnt.c

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net/sunrpc/svc.c

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net/sunrpc/svc_xprt.c

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net/sunrpc/svcauth_unix.c

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net/sunrpc/xdr.c

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net/sunrpc/xprtrdma/transport.c

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net/sunrpc/xprtsock.c

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