From bd8b2441742b49c76bec707757bd9c028ea9838e Mon Sep 17 00:00:00 2001 From: Trond Myklebust Date: Tue, 11 Jul 2017 17:54:34 -0400 Subject: [PATCH] NFS: Store the raw NFS access mask in the inode's access cache Signed-off-by: Trond Myklebust Signed-off-by: Anna Schumaker --- fs/nfs/dir.c | 9 ++++++--- include/linux/nfs_fs.h | 2 +- 2 files changed, 7 insertions(+), 4 deletions(-) diff --git a/fs/nfs/dir.c b/fs/nfs/dir.c index 24b3a6748062b..8fae8b00b8f5f 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); diff --git a/include/linux/nfs_fs.h b/include/linux/nfs_fs.h index e52cc55ac300f..5cc91d6381a35 100644 --- a/include/linux/nfs_fs.h +++ b/include/linux/nfs_fs.h @@ -51,7 +51,7 @@ struct nfs_access_entry { struct list_head lru; unsigned long jiffies; struct rpc_cred * cred; - int mask; + __u32 mask; struct rcu_head rcu_head; }; -- 2.39.5