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| author | Anna Schumaker <Anna.Schumaker@Netapp.com> | 2017-07-26 12:00:21 -0400 |
|---|---|---|
| committer | Anna Schumaker <Anna.Schumaker@Netapp.com> | 2017-10-16 13:51:27 -0400 |
| commit | 1750d929b08764dd293d5bdddaa9bc4d3f94d228 (patch) | |
| tree | 92832c1be321397bd8ead4d530bda3889db87160 /fs/nfs/nfs3proc.c | |
| parent | 3c1818275cc65c6d53e0adfde0c989bfe89ab8d7 (diff) | |
| download | lwn-1750d929b08764dd293d5bdddaa9bc4d3f94d228.tar.gz lwn-1750d929b08764dd293d5bdddaa9bc4d3f94d228.zip | |
NFS: Don't compare apples to elephants to determine access bits
The NFS_ACCESS_* flags aren't a 1:1 mapping to the MAY_* flags, so
checking for MAY_WHATEVER might have surprising results in
nfs*_proc_access(). Let's simplify this check when determining which
bits to ask for, and do it in a generic place instead of copying code
for each NFS version.
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Diffstat (limited to 'fs/nfs/nfs3proc.c')
| -rw-r--r-- | fs/nfs/nfs3proc.c | 17 |
1 files changed, 1 insertions, 16 deletions
diff --git a/fs/nfs/nfs3proc.c b/fs/nfs/nfs3proc.c index d1e87ec0df84..44bf961d5812 100644 --- a/fs/nfs/nfs3proc.c +++ b/fs/nfs/nfs3proc.c @@ -187,6 +187,7 @@ static int nfs3_proc_access(struct inode *inode, struct nfs_access_entry *entry) { struct nfs3_accessargs arg = { .fh = NFS_FH(inode), + .access = entry->mask, }; struct nfs3_accessres res; struct rpc_message msg = { @@ -195,25 +196,9 @@ static int nfs3_proc_access(struct inode *inode, struct nfs_access_entry *entry) .rpc_resp = &res, .rpc_cred = entry->cred, }; - int mode = entry->mask; int status = -ENOMEM; dprintk("NFS call access\n"); - - if (mode & MAY_READ) - arg.access |= NFS3_ACCESS_READ; - if (S_ISDIR(inode->i_mode)) { - if (mode & MAY_WRITE) - arg.access |= NFS3_ACCESS_MODIFY | NFS3_ACCESS_EXTEND | NFS3_ACCESS_DELETE; - if (mode & MAY_EXEC) - arg.access |= NFS3_ACCESS_LOOKUP; - } else { - if (mode & MAY_WRITE) - arg.access |= NFS3_ACCESS_MODIFY | NFS3_ACCESS_EXTEND; - if (mode & MAY_EXEC) - arg.access |= NFS3_ACCESS_EXECUTE; - } - res.fattr = nfs_alloc_fattr(); if (res.fattr == NULL) goto out; |