| .. | .. |
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| 266 | 266 | return sizeof(ucnt); |
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| 267 | 267 | } |
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| 268 | 268 | |
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| 269 | | -static ssize_t eventfd_write(struct file *file, const char __user *buf, size_t count, |
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| 270 | | - loff_t *ppos) |
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| 269 | +static ssize_t eventfd_write(struct kiocb *iocb, struct iov_iter *from) |
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| 271 | 270 | { |
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| 271 | + struct file *file = iocb->ki_filp; |
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| 272 | 272 | struct eventfd_ctx *ctx = file->private_data; |
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| 273 | 273 | ssize_t res; |
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| 274 | 274 | __u64 ucnt; |
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| 275 | 275 | DECLARE_WAITQUEUE(wait, current); |
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| 276 | 276 | |
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| 277 | | - if (count < sizeof(ucnt)) |
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| 277 | + if (iov_iter_count(from) < sizeof(ucnt)) |
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| 278 | 278 | return -EINVAL; |
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| 279 | | - if (copy_from_user(&ucnt, buf, sizeof(ucnt))) |
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| 279 | + if (copy_from_iter(&ucnt, sizeof(ucnt), from) != sizeof(ucnt)) |
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| 280 | 280 | return -EFAULT; |
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| 281 | 281 | if (ucnt == ULLONG_MAX) |
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| 282 | 282 | return -EINVAL; |
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| .. | .. |
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| 333 | 333 | .release = eventfd_release, |
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| 334 | 334 | .poll = eventfd_poll, |
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| 335 | 335 | .read_iter = eventfd_read, |
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| 336 | | - .write = eventfd_write, |
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| 336 | + .write_iter = eventfd_write, |
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| 337 | 337 | .llseek = noop_llseek, |
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| 338 | 338 | }; |
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| 339 | 339 | |
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