Mike Dodd | 8cfa702 | 2010-11-17 11:12:26 -0800 | [diff] [blame] | 1 | /** |
| 2 | * @file compat24.h |
| 3 | * Compatability functions for 2.4 kernels |
| 4 | * |
| 5 | * @remark Copyright 2002 OProfile authors |
| 6 | * @remark Read the file COPYING |
| 7 | * |
| 8 | * @author John Levon |
| 9 | * @author Philippe Elie |
| 10 | */ |
| 11 | |
| 12 | #ifndef COMPAT24_H |
| 13 | #define COMPAT24_H |
| 14 | |
| 15 | #include <linux/version.h> |
| 16 | |
| 17 | static inline pid_t op_get_tgid(void) |
| 18 | { |
| 19 | return current->tgid; |
| 20 | } |
| 21 | |
| 22 | #define pte_page_address(a) page_address(pte_page(a)) |
| 23 | #define oprof_wake_up(w) wake_up(w) |
| 24 | #define lock_rtc(f) spin_lock_irqsave(&rtc_lock, f) |
| 25 | #define unlock_rtc(f) spin_unlock_irqrestore(&rtc_lock, f) |
| 26 | #define wind_dentries(d, v, r, m) wind_dentries_2_4(d, v, r, m) |
| 27 | extern uint do_path_hash_2_4(struct dentry * dentry, struct vfsmount * vfsmnt); |
| 28 | #define hash_path(f) do_path_hash_2_4((f)->f_dentry, (f)->f_vfsmnt) |
| 29 | #define request_region_check request_region |
| 30 | #define op_cpu_id() cpu_number_map(smp_processor_id()) |
| 31 | #define GET_VM_OFFSET(v) ((v)->vm_pgoff << PAGE_SHIFT) |
| 32 | #define PTRACE_OFF(t) ((t)->ptrace &= ~PT_DTRACE) |
| 33 | #define lock_execve() do { } while (0) |
| 34 | #define unlock_execve() do { } while (0) |
| 35 | #define lock_out_mmap() do { } while (0) |
| 36 | #define unlock_out_mmap() do { } while (0) |
| 37 | #define HAVE_MMAP2 |
| 38 | #define HAVE_FILE_OPERATIONS_OWNER |
| 39 | |
| 40 | /* ->owner field in 2.4 */ |
| 41 | #define INC_USE_COUNT_MAYBE |
| 42 | #define DEC_USE_COUNT_MAYBE |
| 43 | |
| 44 | /* no global waitqueue spinlock in 2.4 */ |
| 45 | #define wq_is_lockable() (1) |
| 46 | |
| 47 | /* 2.4.3 introduced rw mmap semaphore */ |
| 48 | #if V_AT_LEAST(2, 4, 3) |
| 49 | #define lock_mmap(mm) down_read(&mm->mmap_sem) |
| 50 | #define unlock_mmap(mm) up_read(&mm->mmap_sem) |
| 51 | #else |
| 52 | #define lock_mmap(mm) down(&mm->mmap_sem) |
| 53 | #define unlock_mmap(mm) up(&mm->mmap_sem) |
| 54 | #endif |
| 55 | |
| 56 | /* 2.4.26 exported the needed stuff for HT support */ |
| 57 | #if V_AT_LEAST(2, 4, 26) && defined(CONFIG_SMP) |
| 58 | #define HT_SUPPORT |
| 59 | #endif |
| 60 | |
| 61 | #endif /* COMPAT24_H */ |