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[Qemu-devel] Re: [PATCH v5 3/6] char: Let writers know how much data was
From: |
Amit Shah |
Subject: |
[Qemu-devel] Re: [PATCH v5 3/6] char: Let writers know how much data was written in case of errors |
Date: |
Tue, 4 May 2010 17:01:51 +0530 |
User-agent: |
Mutt/1.5.19 (2009-01-05) |
On (Tue) May 04 2010 [13:24:58], Gerd Hoffmann wrote:
>> @@ -531,8 +534,12 @@ static int unix_write(int fd, const uint8_t *buf, int
>> len1)
>> while (len> 0) {
>> ret = write(fd, buf, len);
>> if (ret< 0) {
>> - if (errno != EINTR&& errno != EAGAIN)
>> + if (len1 - len) {
>> + return len1 - len;
>> + }
>> + if (errno != EINTR&& errno != EAGAIN) {
>> return -1;
>> + }
>
> This makes unix_write pass -EINTR up to the caller which it didn't before.
Only on partial writes. Should be OK, no?
Amit