This var is currently useless, as it's apparent from reading the code. Until 2.6.11 it was used in some code related to jail mode, in the same proc.:
if(jail){ while(!reading) sched_yield(); } jail mode has been dropped, together with that use, so let's finish dropping this. Also, remove some other useless definitions I met. Signed-off-by: Paolo 'Blaisorblade' Giarrusso <[EMAIL PROTECTED]> --- linux-2.6.12-paolo/arch/um/kernel/tt/process_kern.c | 6 ------ linux-2.6.12-paolo/arch/um/kernel/um_arch.c | 6 ------ linux-2.6.12-paolo/include/asm-um/pgtable.h | 8 -------- 3 files changed, 20 deletions(-) diff -puN arch/um/kernel/tt/process_kern.c~uml-remove-jail-rem arch/um/kernel/tt/process_kern.c --- linux-2.6.12/arch/um/kernel/tt/process_kern.c~uml-remove-jail-rem 2005-05-01 18:34:35.000000000 +0200 +++ linux-2.6.12-paolo/arch/um/kernel/tt/process_kern.c 2005-05-01 18:34:35.000000000 +0200 @@ -32,10 +32,6 @@ void *switch_to_tt(void *prev, void *nex unsigned long flags; int err, vtalrm, alrm, prof, cpu; char c; - /* jailing and SMP are incompatible, so this doesn't need to be - * made per-cpu - */ - static int reading; from = prev; to = next; @@ -59,12 +55,10 @@ void *switch_to_tt(void *prev, void *nex c = 0; set_current(to); - reading = 0; err = os_write_file(to->thread.mode.tt.switch_pipe[1], &c, sizeof(c)); if(err != sizeof(c)) panic("write of switch_pipe failed, err = %d", -err); - reading = 1; if((from->exit_state == EXIT_ZOMBIE) || (from->exit_state == EXIT_DEAD)) os_kill_process(os_getpid(), 0); diff -puN arch/um/kernel/um_arch.c~uml-remove-jail-rem arch/um/kernel/um_arch.c --- linux-2.6.12/arch/um/kernel/um_arch.c~uml-remove-jail-rem 2005-05-01 18:34:54.000000000 +0200 +++ linux-2.6.12-paolo/arch/um/kernel/um_arch.c 2005-05-01 18:36:42.000000000 +0200 @@ -110,12 +110,6 @@ struct seq_operations cpuinfo_op = { .show = show_cpuinfo, }; -pte_t * __bad_pagetable(void) -{ - panic("Someone should implement __bad_pagetable"); - return(NULL); -} - /* Set in linux_main */ unsigned long host_task_size; unsigned long task_size; diff -puN include/asm-um/pgtable.h~uml-remove-jail-rem include/asm-um/pgtable.h --- linux-2.6.12/include/asm-um/pgtable.h~uml-remove-jail-rem 2005-05-01 18:35:18.000000000 +0200 +++ linux-2.6.12-paolo/include/asm-um/pgtable.h 2005-05-01 18:36:33.000000000 +0200 @@ -114,17 +114,9 @@ extern unsigned long end_iomem; extern unsigned long pg0[1024]; /* - * BAD_PAGETABLE is used when we need a bogus page-table, while - * BAD_PAGE is used for a bogus page. - * * ZERO_PAGE is a global shared page that is always zero: used * for zero-mapped memory areas etc.. */ -extern pte_t __bad_page(void); -extern pte_t * __bad_pagetable(void); - -#define BAD_PAGETABLE __bad_pagetable() -#define BAD_PAGE __bad_page() #define ZERO_PAGE(vaddr) virt_to_page(empty_zero_page) _ ------------------------------------------------------- This SF.Net email is sponsored by: NEC IT Guy Games. Get your fingers limbered up and give it your best shot. 4 great events, 4 opportunities to win big! Highest score wins.NEC IT Guy Games. Play to win an NEC 61 plasma display. Visit http://www.necitguy.com/?r=20 _______________________________________________ User-mode-linux-devel mailing list User-mode-linux-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/user-mode-linux-devel