From 8838dc43d6544570e8969a74ddc4a0d21abffde6 Mon Sep 17 00:00:00 2001 From: "J. Bruce Fields" Date: Mon, 14 Jan 2008 13:12:19 -0500 Subject: [PATCH] nfsd4: clean up access_valid, deny_valid checks. Document these checks a little better and inline, as suggested by Neil Brown (note both functions have two callers). Remove an obviously bogus check while we're there (checking whether unsigned value is negative). Signed-off-by: J. Bruce Fields Cc: Neil Brown --- fs/nfsd/nfs4state.c | 13 +++++++++---- 1 file changed, 9 insertions(+), 4 deletions(-) diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c index c4b10a1e6c3..f6744bc03da 100644 --- a/fs/nfsd/nfs4state.c +++ b/fs/nfsd/nfs4state.c @@ -1157,14 +1157,19 @@ find_file(struct inode *ino) return NULL; } -static int access_valid(u32 x) +static inline int access_valid(u32 x) { - return (x > 0 && x < 4); + if (x < NFS4_SHARE_ACCESS_READ) + return 0; + if (x > NFS4_SHARE_ACCESS_BOTH) + return 0; + return 1; } -static int deny_valid(u32 x) +static inline int deny_valid(u32 x) { - return (x >= 0 && x < 5); + /* Note: unlike access bits, deny bits may be zero. */ + return x <= NFS4_SHARE_DENY_BOTH; } static void -- 2.41.0