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fs: provide rcu-walk aware permission i_ops

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Signed-off-by: Nick Piggin <npiggin@kernel.dk>
This commit is contained in:
Nick Piggin
2011-01-07 17:49:58 +11:00
parent 34286d6662
commit b74c79e993
60 changed files with 287 additions and 146 deletions
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7
fs/nfs/dir.c
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@@ -2189,11 +2189,14 @@ int nfs_may_open(struct inode *inode, struct rpc_cred *cred, int openflags)
return nfs_do_access(inode, cred, nfs_open_permission_mask(openflags));
}
int nfs_permission(struct inode *inode, int mask)
int nfs_permission(struct inode *inode, int mask, unsigned int flags)
{
struct rpc_cred *cred;
int res = 0;
if (flags & IPERM_FLAG_RCU)
return -ECHILD;
nfs_inc_stats(inode, NFSIOS_VFSACCESS);
if ((mask & (MAY_READ | MAY_WRITE | MAY_EXEC)) == 0)
@@ -2241,7 +2244,7 @@ out:
out_notsup:
res = nfs_revalidate_inode(NFS_SERVER(inode), inode);
if (res == 0)
res = generic_permission(inode, mask, NULL);
res = generic_permission(inode, mask, flags, NULL);
goto out;
}