diff options
| author | Al Viro <viro@zeniv.linux.org.uk> | 2011-06-25 19:15:54 -0400 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2011-07-20 01:43:52 -0400 |
| commit | 8a5e929dd2e05ab4d3d89f58c5e8fca596af8f3a (patch) | |
| tree | 8cbed05fcd99d24e881e5ea12d8a954865e31085 /fs/nfs/dir.c | |
| parent | 554a8b9f54cd7ca2b89f5dc227df08be082fae0d (diff) | |
don't transliterate lower bits of ->intent.open.flags to FMODE_...
->create() instances are much happier that way...
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'fs/nfs/dir.c')
| -rw-r--r-- | fs/nfs/dir.c | 24 |
1 files changed, 17 insertions, 7 deletions
diff --git a/fs/nfs/dir.c b/fs/nfs/dir.c index 1f462574903..b5f63a50fa7 100644 --- a/fs/nfs/dir.c +++ b/fs/nfs/dir.c @@ -1338,16 +1338,26 @@ static int is_atomic_open(struct nameidata *nd) return 0; /* Are we trying to write to a read only partition? */ if (__mnt_is_readonly(nd->path.mnt) && - (nd->intent.open.flags & (O_CREAT|O_TRUNC|FMODE_WRITE))) + (nd->intent.open.flags & (O_CREAT|O_TRUNC|O_ACCMODE))) return 0; return 1; } +static fmode_t flags_to_mode(int flags) +{ + fmode_t res = (__force fmode_t)flags & FMODE_EXEC; + if ((flags & O_ACCMODE) != O_WRONLY) + res |= FMODE_READ; + if ((flags & O_ACCMODE) != O_RDONLY) + res |= FMODE_WRITE; + return res; +} + static struct nfs_open_context *create_nfs_open_context(struct dentry *dentry, int open_flags) { struct nfs_open_context *ctx; struct rpc_cred *cred; - fmode_t fmode = open_flags & (FMODE_READ | FMODE_WRITE | FMODE_EXEC); + fmode_t fmode = flags_to_mode(open_flags); cred = rpc_lookup_cred(); if (IS_ERR(cred)) @@ -1567,7 +1577,7 @@ static int nfs_open_create(struct inode *dir, struct dentry *dentry, int mode, struct nfs_open_context *ctx = NULL; struct iattr attr; int error; - int open_flags = O_CREAT|O_EXCL|FMODE_READ; + int open_flags = O_CREAT|O_EXCL; dfprintk(VFS, "NFS: create(%s/%ld), %s\n", dir->i_sb->s_id, dir->i_ino, dentry->d_name.name); @@ -1657,7 +1667,7 @@ static int nfs_create(struct inode *dir, struct dentry *dentry, int mode, { struct iattr attr; int error; - int open_flags = O_CREAT|O_EXCL|FMODE_READ; + int open_flags = O_CREAT|O_EXCL; dfprintk(VFS, "NFS: create(%s/%ld), %s\n", dir->i_sb->s_id, dir->i_ino, dentry->d_name.name); @@ -2256,11 +2266,11 @@ static int nfs_open_permission_mask(int openflags) { int mask = 0; - if (openflags & FMODE_READ) + if ((openflags & O_ACCMODE) != O_WRONLY) mask |= MAY_READ; - if (openflags & FMODE_WRITE) + if ((openflags & O_ACCMODE) != O_RDONLY) mask |= MAY_WRITE; - if (openflags & FMODE_EXEC) + if (openflags & __FMODE_EXEC) mask |= MAY_EXEC; return mask; } |