adulau/aha
1
0
Fork 0
mirror of https://github.com/adulau/aha.git synced 2024-12-28 03:36:19 +00:00
Code Issues Projects Releases Packages Wiki Activity

aio: partial write should not return error code

Browse source 
When an AIO write gets an error after writing some data (eg.  ENOSPC), it
should return the amount written already, not the error.  Just like write()
is supposed to.

This was found by the libaio test suite.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Acked-By: Zach Brown <zach.brown@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Rusty Russell 2008-02-08 04:20:14 -08:00 committed by Linus Torvalds
parent 25478445c4
commit 7adfa2ff3e
1 changed files with 7 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

7
fs/aio.c
View file

@ -1347,6 +1347,13 @@ static ssize_t aio_rw_vect_retry(struct kiocb *iocb)
if ((ret == 0) || (iocb->ki_left == 0))
ret = iocb->ki_nbytes - iocb->ki_left;
/* If we managed to write some out we return that, rather than
* the eventual error. */
if (opcode == IOCB_CMD_PWRITEV
&& ret < 0 && ret != -EIOCBQUEUED && ret != -EIOCBRETRY
&& iocb->ki_nbytes - iocb->ki_left)
ret = iocb->ki_nbytes - iocb->ki_left;
return ret;
}