On 1/16/2014 3:02 PM, Carlos O'Donell wrote:
On Thu, Jan 16, 2014 at 11:17 AM, Guy Martin <gmsoft@xxxxxxxxxxxx> wrote:
On Linux, only parisc uses a different value for EWOULDBLOCK which
causes a lot of troubles for applications not checking for both values.
Since the hpux compat is long dead, make EWOULDBLOCK behave the same as
all other architectures.
Signed-off-by: Guy Martin <gmsoft@xxxxxxxxxxxx>
---
arch/parisc/include/uapi/asm/errno.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/parisc/include/uapi/asm/errno.h
b/arch/parisc/include/uapi/asm/errno.h
index f3a8aa5..c0ae625 100644
--- a/arch/parisc/include/uapi/asm/errno.h
+++ b/arch/parisc/include/uapi/asm/errno.h
@@ -106,7 +106,7 @@
#define EALREADY 244 /* Operation already in progress */
#define EINPROGRESS 245 /* Operation now in progress */
-#define EWOULDBLOCK 246 /* Operation would block (Linux
returns EAGAIN) */
+#define EWOULDBLOCK EAGAIN /* Operation would block (Not HPUX
compliant) */
#define ENOTEMPTY 247 /* Directory not empty */
#define ENAMETOOLONG 248 /* File name too long */
#define ELOOP 249 /* Too many symbolic links
encountered */
This is an ABI break.
You can't do this without rebuilding userspace.
You need debian an gentoo onboard to do this ABI break.
This would take about a month on Debian, so I'm against. Various bits
of kernel code traditionally
return EWOULDBLOCK, so any application code that just checks EWOULDBLOCK
would fail.
Dave
--
John David Anglin dave.anglin@xxxxxxxx
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