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authorTrond Myklebust <trond.myklebust@primarydata.com>2017-07-11 17:54:34 -0400
committerAnna Schumaker <Anna.Schumaker@Netapp.com>2017-07-21 11:51:19 -0400
commitbd8b2441742b49c76bec707757bd9c028ea9838e (patch)
tree950978dc49c18fe92a7e17b63f3a07286c463e1a /fs
parenteda3e20847788c453aa7ab478aeaceb56ed29cb6 (diff)
downloadlinux-stericsson-bd8b2441742b49c76bec707757bd9c028ea9838e.tar.gz
NFS: Store the raw NFS access mask in the inode's access cache
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com> Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Diffstat (limited to 'fs')
-rw-r--r--fs/nfs/dir.c9
1 files changed, 6 insertions, 3 deletions
diff --git a/fs/nfs/dir.c b/fs/nfs/dir.c
index 24b3a6748062..8fae8b00b8f5 100644
--- a/fs/nfs/dir.c
+++ b/fs/nfs/dir.c
@@ -2399,7 +2399,7 @@ nfs_access_calc_mask(u32 access_result)
void nfs_access_set_mask(struct nfs_access_entry *entry, u32 access_result)
{
- entry->mask = nfs_access_calc_mask(access_result);
+ entry->mask = access_result;
}
EXPORT_SYMBOL_GPL(nfs_access_set_mask);
@@ -2407,6 +2407,7 @@ static int nfs_do_access(struct inode *inode, struct rpc_cred *cred, int mask)
{
struct nfs_access_entry cache;
bool may_block = (mask & MAY_NOT_BLOCK) == 0;
+ int cache_mask;
int status;
trace_nfs_access_enter(inode);
@@ -2422,7 +2423,8 @@ static int nfs_do_access(struct inode *inode, struct rpc_cred *cred, int mask)
goto out;
/* Be clever: ask server to check for all possible rights */
- cache.mask = MAY_EXEC | MAY_WRITE | MAY_READ;
+ cache.mask = NFS_MAY_LOOKUP | NFS_MAY_EXECUTE
+ | NFS_MAY_WRITE | NFS_MAY_READ;
cache.cred = cred;
cache.jiffies = jiffies;
status = NFS_PROTO(inode)->access(inode, &cache);
@@ -2436,7 +2438,8 @@ static int nfs_do_access(struct inode *inode, struct rpc_cred *cred, int mask)
}
nfs_access_add_cache(inode, &cache);
out_cached:
- if ((mask & ~cache.mask & (MAY_READ | MAY_WRITE | MAY_EXEC)) != 0)
+ cache_mask = nfs_access_calc_mask(cache.mask);
+ if ((mask & ~cache_mask & (MAY_READ | MAY_WRITE | MAY_EXEC)) != 0)
status = -EACCES;
out:
trace_nfs_access_exit(inode, status);