Re: RFC: iomap write invalidation

Matthew Wilcox
2020-07-21T15:14:46Z

On Tue, Jul 21, 2020 at 05:06:15PM +0200, Christoph Hellwig wrote:
> On Tue, Jul 21, 2020 at 04:04:32PM +0100, Matthew Wilcox wrote:
> > I thought you were going to respin this with EREMCHG changed to ENOTBLK?
>
> Oh, true. I'll do that ASAP.

Michael, could we add this to manpages?

--- write.2.old 2020-07-21 11:11:17.740491825 -0400
+++ write.2 2020-07-21 11:13:05.900389249 -0400
@@ -192,6 +192,12 @@
.IR count ,
or the file offset is not suitably aligned.
.TP
+.B ENOTBLK
+The file was opened with the
+.B O_DIRECT
+flag, and the I/O could not be completed due to another process using
+the file.
+.TP
.B EIO
A low-level I/O error occurred while modifying the inode.
This error may relate to the write-back of data written by an earlier