From: Trond Myklebust Date: Tue, 11 Jul 2017 21:54:32 +0000 (-0400) Subject: NFS: Refactor NFS access to kernel access mask calculation X-Git-Url: http://git.rot13.org/?a=commitdiff_plain;h=15d4b73ac2232d6f2beb61d8b2400ea66e4da606;p=linux NFS: Refactor NFS access to kernel access mask calculation Signed-off-by: Trond Myklebust Signed-off-by: Anna Schumaker --- diff --git a/fs/nfs/dir.c b/fs/nfs/dir.c index 1255891e5695..24b3a6748062 100644 --- a/fs/nfs/dir.c +++ b/fs/nfs/dir.c @@ -2375,16 +2375,31 @@ void nfs_access_add_cache(struct inode *inode, struct nfs_access_entry *set) } EXPORT_SYMBOL_GPL(nfs_access_add_cache); +#define NFS_MAY_READ (NFS4_ACCESS_READ) +#define NFS_MAY_WRITE (NFS4_ACCESS_MODIFY | \ + NFS4_ACCESS_EXTEND | \ + NFS4_ACCESS_DELETE) +#define NFS_MAY_LOOKUP (NFS4_ACCESS_LOOKUP) +#define NFS_MAY_EXECUTE (NFS4_ACCESS_EXECUTE) +static int +nfs_access_calc_mask(u32 access_result) +{ + int mask = 0; + + if (access_result & NFS_MAY_READ) + mask |= MAY_READ; + if (access_result & NFS_MAY_WRITE) + mask |= MAY_WRITE; + if (access_result & NFS_MAY_LOOKUP) + mask |= MAY_EXEC; + if (access_result & NFS_MAY_EXECUTE) + mask |= MAY_EXEC; + return mask; +} + void nfs_access_set_mask(struct nfs_access_entry *entry, u32 access_result) { - entry->mask = 0; - if (access_result & NFS4_ACCESS_READ) - entry->mask |= MAY_READ; - if (access_result & - (NFS4_ACCESS_MODIFY | NFS4_ACCESS_EXTEND | NFS4_ACCESS_DELETE)) - entry->mask |= MAY_WRITE; - if (access_result & (NFS4_ACCESS_LOOKUP|NFS4_ACCESS_EXECUTE)) - entry->mask |= MAY_EXEC; + entry->mask = nfs_access_calc_mask(access_result); } EXPORT_SYMBOL_GPL(nfs_access_set_mask);