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fuse: rework fuse_do_ioctl()
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. Signed-off-by: Maxim Patlasov <mpatlasov@parallels.com> Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
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@ -1894,7 +1894,7 @@ long fuse_do_ioctl(struct file *file, unsigned int cmd, unsigned long arg,
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num_pages++;
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}
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req = fuse_get_req(fc, FUSE_MAX_PAGES_PER_REQ);
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req = fuse_get_req(fc, num_pages);
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if (IS_ERR(req)) {
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err = PTR_ERR(req);
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req = NULL;
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