fuse_do_ioctl() already calculates the number of pages it's going to use. It is
stored in 'num_pages' variable. So the patch simply uses it for allocating
fuse_req.
---
fs/fuse/file.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/fs/fuse/file.c b/fs/fuse/file.c
index 84cc83c..abb070b 100644
--- a/fs/fuse/file.c
+++ b/fs/fuse/file.c
@@ -1885,7 +1885,7 @@ long fuse_do_ioctl(struct file *file, unsigned int cmd,
unsigned long arg,
num_pages++;
}
- req = fuse_get_req_multipage(fc, FUSE_MAX_PAGES_PER_REQ);
+ req = fuse_get_req_multipage(fc, num_pages);
if (IS_ERR(req)) {
err = PTR_ERR(req);
req = NULL;
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