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authorAl Viro <viro@zeniv.linux.org.uk>2014-12-17 04:46:46 -0500
committerAl Viro <viro@zeniv.linux.org.uk>2014-12-17 06:43:56 -0500
commit777eda2c5b84d6f3543f4aecbf4cd1f29b222a81 (patch)
tree0d007920c70708c178b59051b1fbf34b6e689fb6 /include/linux/uio.h
parentb1bc6d7f163234cad4f34e3f5dffde44b96369eb (diff)
new helper: iter_is_iovec()
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'include/linux/uio.h')
-rw-r--r--include/linux/uio.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/include/linux/uio.h b/include/linux/uio.h
index a41e252396c0..1c5e453f7ea9 100644
--- a/include/linux/uio.h
+++ b/include/linux/uio.h
@@ -101,6 +101,11 @@ static inline size_t iov_iter_count(struct iov_iter *i)
return i->count;
}
+static inline bool iter_is_iovec(struct iov_iter *i)
+{
+ return !(i->type & (ITER_BVEC | ITER_KVEC));
+}
+
/*
* Cap the iov_iter by given limit; note that the second argument is
* *not* the new size - it's upper limit for such. Passing it a value