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| author | Al Viro <viro@zeniv.linux.org.uk> | 2013-07-13 09:26:37 (GMT) |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2013-07-13 09:26:37 (GMT) |
| commit | bb458c644a59dbba3a1fe59b27106c5e68e1c4bd (patch) | |
| tree | b0f3b51fc5cbd044b076cb0a1fec43ca62f2b7f5 /fs | |
| parent | 4fbeb19d53cc3ef2da4bd1fd89a5dc9ac04add3a (diff) | |
| download | linux-bb458c644a59dbba3a1fe59b27106c5e68e1c4bd.tar.xz | |
Safer ABI for O_TMPFILE
[suggested by Rasmus Villemoes] make O_DIRECTORY | O_RDWR part of O_TMPFILE;
that will fail on old kernels in a lot more cases than what I came up with.
And make sure O_CREAT doesn't get there...
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/namei.c | 2 | ||||
| -rw-r--r-- | fs/open.c | 4 |
2 files changed, 3 insertions, 3 deletions
@@ -2977,7 +2977,7 @@ static struct file *path_openat(int dfd, struct filename *pathname, file->f_flags = op->open_flag; - if (unlikely(file->f_flags & O_TMPFILE)) { + if (unlikely(file->f_flags & __O_TMPFILE)) { error = do_tmpfile(dfd, pathname, nd, flags, op, file, &opened); goto out; } @@ -840,8 +840,8 @@ static inline int build_open_flags(int flags, umode_t mode, struct open_flags *o if (flags & __O_SYNC) flags |= O_DSYNC; - if (flags & O_TMPFILE) { - if (!(flags & O_CREAT)) + if (flags & __O_TMPFILE) { + if ((flags & O_TMPFILE_MASK) != O_TMPFILE) return -EINVAL; acc_mode = MAY_OPEN | ACC_MODE(flags); } else if (flags & O_PATH) { |