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linux: add read_descriptor_t configure test and ifdef

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With linux 2.6.8 the struct read_descriptor_t changed.
Add a configure-test and respective ifdef to deal with that.

Change-Id: Iff1a6252707cd2119bdc0382c641934119ea0422
Reviewed-on: http://gerrit.openafs.org/4719
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Marc Dionne <marc.c.dionne@gmail.com>
Reviewed-by: Derrick Brashear <shadow@dementia.org>
This commit is contained in:
Christof Hanke 2011-05-26 07:46:32 +02:00 committed by Derrick Brashear
parent baf7656f66
commit 7133266baf
2 changed files with 8 additions and 0 deletions
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4
acinclude.m4
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@ -813,6 +813,10 @@ case $AFS_SYSNAME in *_linux* | *_umlinux*)
AC_CHECK_LINUX_STRUCT([task_struct], [thread_info], [sched.h]) AC_CHECK_LINUX_STRUCT([task_struct], [thread_info], [sched.h])
LINUX_SCHED_STRUCT_TASK_STRUCT_HAS_SIGNAL_RLIM LINUX_SCHED_STRUCT_TASK_STRUCT_HAS_SIGNAL_RLIM
dnl Check for typed structure elements
AC_CHECK_LINUX_TYPED_STRUCT([read_descriptor_t],
[buf], [fs.h])
dnl Function existence checks dnl Function existence checks
AC_CHECK_LINUX_FUNC([bdi_init], AC_CHECK_LINUX_FUNC([bdi_init],

4
src/afs/LINUX/osi_fetchstore.c
View File

@ -126,7 +126,11 @@ static int
afs_linux_read_actor(read_descriptor_t *desc, struct page *page, afs_linux_read_actor(read_descriptor_t *desc, struct page *page,
unsigned long offset, unsigned long size) unsigned long offset, unsigned long size)
{ {
#ifdef READ_DESCRIPTOR_T_HAS_BUF
struct rxfs_storeVariables *svar = (void *) desc->buf;
#else
struct rxfs_storeVariables *svar = desc->arg.data; struct rxfs_storeVariables *svar = desc->arg.data;
#endif
unsigned long count = desc->count; unsigned long count = desc->count;
int code; int code;