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| author | J. Bruce Fields <bfields@citi.umich.edu> | 2008-01-14 13:12:19 -0500 |
|---|---|---|
| committer | J. Bruce Fields <bfields@citi.umich.edu> | 2008-02-01 16:42:07 -0500 |
| commit | 8838dc43d6544570e8969a74ddc4a0d21abffde6 (patch) | |
| tree | f3082dd80293fe5279d8ff993d2e0c17a0a2f2b4 | |
| parent | b39c18fce003bb2d5a51a4734d8fdd2c81fa1a78 (diff) | |
| download | linux-8838dc43d6544570e8969a74ddc4a0d21abffde6.tar.gz linux-8838dc43d6544570e8969a74ddc4a0d21abffde6.tar.bz2 linux-8838dc43d6544570e8969a74ddc4a0d21abffde6.zip | |
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 <bfields@citi.umich.edu>
Cc: Neil Brown <neilb@suse.de>
| -rw-r--r-- | fs/nfsd/nfs4state.c | 13 |
1 files changed, 9 insertions, 4 deletions
diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c index c4b10a1e6c30..f6744bc03dae 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 |