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NFSv4: Fix nfs_atomic_open() to set the verifier on negative dentries too 

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
hifive-unleashed-5.1
Trond Myklebust 2007-10-01 21:42:01 -04:00
parent 216d5d0688
commit d75340cc4d
3 changed files with 11 additions and 9 deletions
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8
fs/nfs/dir.c
View File

@ -656,11 +656,6 @@ static int nfs_check_verifier(struct inode *dir, struct dentry *dentry)
return 1;
}
static inline void nfs_set_verifier(struct dentry * dentry, unsigned long verf)
{
dentry->d_time = verf;
}
/*
* Return the intent data that applies to this particular path component
*
@ -1016,7 +1011,6 @@ static struct dentry *nfs_atomic_lookup(struct inode *dir, struct dentry *dentry
}
} else if (res != NULL)
dentry = res;
nfs_set_verifier(dentry, nfs_save_change_attribute(dir));
out:
return res;
no_open:
@ -1060,8 +1054,6 @@ static int nfs_open_revalidate(struct dentry *dentry, struct nameidata *nd)
*/
lock_kernel();
ret = nfs4_open_revalidate(dir, dentry, openflags, nd);
if (ret == 1)
nfs_set_verifier(dentry, nfs_save_change_attribute(dir));
unlock_kernel();
out:
dput(parent);

7
fs/nfs/nfs4proc.c
View File

@ -1399,13 +1399,16 @@ nfs4_atomic_open(struct inode *dir, struct dentry *dentry, struct nameidata *nd)
state = nfs4_do_open(dir, &path, nd->intent.open.flags, &attr, cred);
put_rpccred(cred);
if (IS_ERR(state)) {
if (PTR_ERR(state) == -ENOENT)
if (PTR_ERR(state) == -ENOENT) {
d_add(dentry, NULL);
nfs_set_verifier(dentry, nfs_save_change_attribute(dir));
}
return (struct dentry *)state;
}
res = d_add_unique(dentry, igrab(state->inode));
if (res != NULL)
path.dentry = res;
nfs_set_verifier(path.dentry, nfs_save_change_attribute(dir));
nfs4_intent_set_file(nd, &path, state);
return res;
}
@ -1439,6 +1442,7 @@ nfs4_open_revalidate(struct inode *dir, struct dentry *dentry, int openflags, st
}
}
if (state->inode == dentry->d_inode) {
nfs_set_verifier(dentry, nfs_save_change_attribute(dir));
nfs4_intent_set_file(nd, &path, state);
return 1;
}
@ -1885,6 +1889,7 @@ nfs4_proc_create(struct inode *dir, struct dentry *dentry, struct iattr *sattr,
goto out;
}
d_add(dentry, igrab(state->inode));
nfs_set_verifier(dentry, nfs_save_change_attribute(dir));
if (flags & O_EXCL) {
struct nfs_fattr fattr;
status = nfs4_do_setattr(state->inode, &fattr, sattr, state);

5
include/linux/nfs_fs.h
View File

@ -240,6 +240,11 @@ static inline int NFS_USE_READDIRPLUS(struct inode *inode)
return test_bit(NFS_INO_ADVISE_RDPLUS, &NFS_FLAGS(inode));
}
static inline void nfs_set_verifier(struct dentry * dentry, unsigned long verf)
{
dentry->d_time = verf;
}
/**
* nfs_save_change_attribute - Returns the inode attribute change cookie
* @dir - pointer to parent directory inode