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Merge 16d683c4bb into 0fc810ae3a

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Nikita 2024-10-31 10:03:09 +08:00 committed by GitHub
commit b141113865
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1 changed files with 6 additions and 2 deletions
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8
fs/btrfs/send.c
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@ -641,15 +641,19 @@ static struct btrfs_path *alloc_path_for_send(void)
static int write_buf(struct file *filp, const void *buf, u32 len, loff_t *off) static int write_buf(struct file *filp, const void *buf, u32 len, loff_t *off)
{ {
int ret; ssize_t ret;
u32 pos = 0; u32 pos = 0;
while (pos < len) { while (pos < len) {
ret = kernel_write(filp, buf + pos, len - pos, off); u32 write_size = min_t(u32, len - pos, MAX_RW_COUNT);
ret = kernel_write(filp, buf + pos, write_size, off);
if (ret < 0) if (ret < 0)
return ret; return ret;
if (ret == 0) if (ret == 0)
return -EIO; return -EIO;
if (pos > UINT_MAX - ret)
return -EOVERFLOW;
pos += ret; pos += ret;
} }