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staging/lustre/autoconf: remove LIBCFS_HAVE_IS_COMPAT_TASK test

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is_compat_task has been defined on all arches since v2.6.29.
We can remove the test and dead code.

Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-2800
Lustre-change: http://review.whamcloud.com/5393
Signed-off-by: Jeff Mahoney <jeffm@suse.com>
Signed-off-by: James Simmons <uja.ornl@gmail.com>
Reviewed-by: Bob Glossman <bob.glossman@intel.com>
Reviewed-by: Oleg Drokin <oleg.drokin@intel.com>
Signed-off-by: Peng Tao <bergwolf@gmail.com>
Signed-off-by: Andreas Dilger <andreas.dilger@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
James Simmons 2013-11-15 00:13:16 +08:00 committed by Greg Kroah-Hartman
parent aa363d6a1c
commit c7c99012dd
3 changed files with 2 additions and 15 deletions
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1
drivers/staging/lustre/include/linux/libcfs/curproc.h
View File

@ -61,7 +61,6 @@ int cfs_curproc_groups_nr(void);
*/
/* check if task is running in compat mode.*/
int current_is_32bit(void);
#define current_pid() (current->pid)
#define current_comm() (current->comm)
int cfs_get_environ(const char *key, char *value, int *val_len);

13
drivers/staging/lustre/lustre/libcfs/linux/linux-curproc.c
View File

@ -140,18 +140,6 @@ int cfs_capable(cfs_cap_t cap)
return capable(cfs_cap_unpack(cap));
}
/* Check if task is running in 32-bit API mode, for the purpose of
* userspace binary interfaces. On 32-bit Linux this is (unfortunately)
* always true, even if the application is using LARGEFILE64 and 64-bit
* APIs, because Linux provides no way for the filesystem to know if it
* is called via 32-bit or 64-bit APIs. Other clients may vary. On
* 64-bit systems, this will only be true if the binary is calling a
* 32-bit system call. */
int current_is_32bit(void)
{
return is_compat_task();
}
static int cfs_access_process_vm(struct task_struct *tsk, unsigned long addr,
void *buf, int len, int write)
{
@ -311,7 +299,6 @@ EXPORT_SYMBOL(cfs_cap_raised);
EXPORT_SYMBOL(cfs_curproc_cap_pack);
EXPORT_SYMBOL(cfs_curproc_cap_unpack);
EXPORT_SYMBOL(cfs_capable);
EXPORT_SYMBOL(current_is_32bit);
/*
* Local variables:

3
drivers/staging/lustre/lustre/llite/llite_internal.h
View File

@ -46,6 +46,7 @@
#include <lclient.h>
#include <lustre_mdc.h>
#include <linux/lustre_intent.h>
#include <linux/compat.h>
#ifndef FMODE_EXEC
#define FMODE_EXEC 0
@ -643,7 +644,7 @@ static inline int ll_need_32bit_api(struct ll_sb_info *sbi)
#if BITS_PER_LONG == 32
return 1;
#else
return unlikely(current_is_32bit() || (sbi->ll_flags & LL_SBI_32BIT_API));
return unlikely(is_compat_task() || (sbi->ll_flags & LL_SBI_32BIT_API));
#endif
}