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Merge branch 'for-3.11' of git://linux-nfs.org/~bfields/linux

Browse source 
Pull nfsd bugfixes from Bruce Fields:
 "Just three minor bugfixes"

* 'for-3.11' of git://linux-nfs.org/~bfields/linux:
  svcrdma: underflow issue in decode_write_list()
  nfsd4: fix minorversion support interface
  lockd: protect nlm_blocked access in nlmsvc_retry_blocked
This commit is contained in:
Linus Torvalds 2013-07-17 13:43:55 -07:00
commit 61f98b0fca
5 changed files with 26 additions and 14 deletions
Download patch file Download diff file Expand all files Collapse all files

4
fs/lockd/svclock.c
View file

@ -951,6 +951,7 @@ nlmsvc_retry_blocked(void)
unsigned long timeout = MAX_SCHEDULE_TIMEOUT;
struct nlm_block *block;
spin_lock(&nlm_blocked_lock);
while (!list_empty(&nlm_blocked) && !kthread_should_stop()) {
block = list_entry(nlm_blocked.next, struct nlm_block, b_list);
@ -960,6 +961,7 @@ nlmsvc_retry_blocked(void)
timeout = block->b_when - jiffies;
break;
}
spin_unlock(&nlm_blocked_lock);
dprintk("nlmsvc_retry_blocked(%p, when=%ld)\n",
block, block->b_when);
@ -969,7 +971,9 @@ nlmsvc_retry_blocked(void)
retry_deferred_block(block);
} else
nlmsvc_grant_blocked(block);
spin_lock(&nlm_blocked_lock);
}
spin_unlock(&nlm_blocked_lock);
return timeout;
}

2
fs/nfsd/nfs4proc.c
View file

@ -1293,7 +1293,7 @@ nfsd4_proc_compound(struct svc_rqst *rqstp,
* According to RFC3010, this takes precedence over all other errors.
*/
status = nfserr_minor_vers_mismatch;
if (args->minorversion > nfsd_supported_minorversion)
if (nfsd_minorversion(args->minorversion, NFSD_TEST) <= 0)
goto out;
status = nfs41_check_op_ordering(args);

1
fs/nfsd/nfsd.h
View file

@ -53,7 +53,6 @@ struct readdir_cd {
extern struct svc_program nfsd_program;
extern struct svc_version nfsd_version2, nfsd_version3,
nfsd_version4;
extern u32 nfsd_supported_minorversion;
extern struct mutex nfsd_mutex;
extern spinlock_t nfsd_drc_lock;
extern unsigned long nfsd_drc_max_mem;

13
fs/nfsd/nfssvc.c
View file

@ -116,7 +116,10 @@ struct svc_program nfsd_program = {
};
u32 nfsd_supported_minorversion = 1;
static bool nfsd_supported_minorversions[NFSD_SUPPORTED_MINOR_VERSION + 1] = {
[0] = 1,
[1] = 1,
};
int nfsd_vers(int vers, enum vers_op change)
{
@ -151,15 +154,13 @@ int nfsd_minorversion(u32 minorversion, enum vers_op change)
return -1;
switch(change) {
case NFSD_SET:
nfsd_supported_minorversion = minorversion;
nfsd_supported_minorversions[minorversion] = true;
break;
case NFSD_CLEAR:
if (minorversion == 0)
return -1;
nfsd_supported_minorversion = minorversion - 1;
nfsd_supported_minorversions[minorversion] = false;
break;
case NFSD_TEST:
return minorversion <= nfsd_supported_minorversion;
return nfsd_supported_minorversions[minorversion];
case NFSD_AVAIL:
return minorversion <= NFSD_SUPPORTED_MINOR_VERSION;
}