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-rw-r--r--mm/filemap.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/mm/filemap.c b/mm/filemap.c
index 7771871fa35..5cf820a7c8e 100644
--- a/mm/filemap.c
+++ b/mm/filemap.c
@@ -2115,6 +2115,7 @@ void iov_iter_advance(struct iov_iter *i, size_t bytes)
} else {
const struct iovec *iov = i->iov;
size_t base = i->iov_offset;
+ unsigned long nr_segs = i->nr_segs;
/*
* The !iov->iov_len check ensures we skip over unlikely
@@ -2130,11 +2131,13 @@ void iov_iter_advance(struct iov_iter *i, size_t bytes)
base += copy;
if (iov->iov_len == base) {
iov++;
+ nr_segs--;
base = 0;
}
}
i->iov = iov;
i->iov_offset = base;
+ i->nr_segs = nr_segs;
}
}
EXPORT_SYMBOL(iov_iter_advance);