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

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Pull nfsd bugfixes from J Bruce Fields:
 "Fixes for a couple mistakes in the new DRC code.  And thanks to Kent
  Overstreet for noticing we've been sync'ing the wrong range on stable
  writes since 3.8."

* 'for-3.9' of git://linux-nfs.org/~bfields/linux:
  nfsd: fix bad offset use
  nfsd: fix startup order in nfsd_reply_cache_init
  nfsd: only unhash DRC entries that are in the hashtable
This commit is contained in:
Linus Torvalds 2013-03-25 09:25:12 -07:00
commit 844fdd9ac1
2 changed files with 8 additions and 6 deletions
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11
fs/nfsd/nfscache.c
View file

@ -102,7 +102,8 @@ nfsd_reply_cache_free_locked(struct svc_cacherep *rp)
{
if (rp->c_type == RC_REPLBUFF)
kfree(rp->c_replvec.iov_base);
hlist_del(&rp->c_hash);
if (!hlist_unhashed(&rp->c_hash))
hlist_del(&rp->c_hash);
list_del(&rp->c_lru);
--num_drc_entries;
kmem_cache_free(drc_slab, rp);
@ -118,6 +119,10 @@ nfsd_reply_cache_free(struct svc_cacherep *rp)
int nfsd_reply_cache_init(void)
{
INIT_LIST_HEAD(&lru_head);
max_drc_entries = nfsd_cache_size_limit();
num_drc_entries = 0;
register_shrinker(&nfsd_reply_cache_shrinker);
drc_slab = kmem_cache_create("nfsd_drc", sizeof(struct svc_cacherep),
0, 0, NULL);
@ -128,10 +133,6 @@ int nfsd_reply_cache_init(void)
if (!cache_hash)
goto out_nomem;
INIT_LIST_HEAD(&lru_head);
max_drc_entries = nfsd_cache_size_limit();
num_drc_entries = 0;
return 0;
out_nomem:
printk(KERN_ERR "nfsd: failed to allocate reply cache\n");

3
fs/nfsd/vfs.c
View file

@ -1013,6 +1013,7 @@ nfsd_vfs_write(struct svc_rqst *rqstp, struct svc_fh *fhp, struct file *file,
int host_err;
int stable = *stablep;
int use_wgather;
loff_t pos = offset;
dentry = file->f_path.dentry;
inode = dentry->d_inode;
@ -1025,7 +1026,7 @@ nfsd_vfs_write(struct svc_rqst *rqstp, struct svc_fh *fhp, struct file *file,
/* Write the data. */
oldfs = get_fs(); set_fs(KERNEL_DS);
host_err = vfs_writev(file, (struct iovec __user *)vec, vlen, &offset);
host_err = vfs_writev(file, (struct iovec __user *)vec, vlen, &pos);
set_fs(oldfs);
if (host_err < 0)
goto out_nfserr;