When other end of the pipe closed during the write, but some bytes
were written, return short write instead of EPIPE. Update comment. Discussed with: bde (long time ago) MFC after: 2 weeks
This commit is contained in:
parent
e5f33ae3e7
commit
ab57474c83
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=274023
@ -1296,13 +1296,13 @@ pipe_write(fp, uio, active_cred, flags, td)
|
||||
}
|
||||
|
||||
/*
|
||||
* Don't return EPIPE if I/O was successful
|
||||
* Don't return EPIPE if any byte was written.
|
||||
* EINTR and other interrupts are handled by generic I/O layer.
|
||||
* Do not pretend that I/O succeeded for obvious user error
|
||||
* like EFAULT.
|
||||
*/
|
||||
if ((wpipe->pipe_buffer.cnt == 0) &&
|
||||
(uio->uio_resid == 0) &&
|
||||
(error == EPIPE)) {
|
||||
if (uio->uio_resid != orig_resid && error == EPIPE)
|
||||
error = 0;
|
||||
}
|
||||
|
||||
if (error == 0)
|
||||
vfs_timestamp(&wpipe->pipe_mtime);
|
||||
|
Loading…
Reference in New Issue
Block a user