Merge http://gkernel.bkbits.net/net-drivers-2.5

into penguin.transmeta.com:/home/penguin/torvalds/repositories/kernel/linux

arch/alpha/kernel/core_irongate.c

@@ -19,6 +19,8 @@
 #include <asm/system.h>
 #include <asm/pci.h>
 #include <asm/hwrpb.h>
+#include <asm/cacheflush.h>
+#include <asm/tlbflush.h>
 
 #define __EXTERN_INLINE inline
 #include <asm/io.h>

arch/alpha/kernel/sys_alcor.c

@@ -26,6 +26,7 @@
 #include <asm/irq.h>
 #include <asm/pgtable.h>
 #include <asm/core_cia.h>
+#include <asm/tlbflush.h>
 
 #include "proto.h"
 #include "irq_impl.h"

arch/alpha/kernel/sys_cabriolet.c

@@ -28,6 +28,7 @@
 #include <asm/core_apecs.h>
 #include <asm/core_cia.h>
 #include <asm/core_lca.h>
+#include <asm/tlbflush.h>
 
 #include "proto.h"
 #include "irq_impl.h"

arch/alpha/kernel/sys_dp264.c

@@ -30,6 +30,7 @@
 #include <asm/pgtable.h>
 #include <asm/core_tsunami.h>
 #include <asm/hwrpb.h>
+#include <asm/tlbflush.h>
 
 #include "proto.h"
 #include "irq_impl.h"

arch/alpha/kernel/sys_eb64p.c

@@ -27,6 +27,7 @@
 #include <asm/core_apecs.h>
 #include <asm/core_lca.h>
 #include <asm/hwrpb.h>
+#include <asm/tlbflush.h>
 
 #include "proto.h"
 #include "irq_impl.h"

arch/alpha/kernel/sys_eiger.c

@@ -27,6 +27,7 @@
 #include <asm/pgtable.h>
 #include <asm/core_tsunami.h>
 #include <asm/hwrpb.h>
+#include <asm/tlbflush.h>
 
 #include "proto.h"
 #include "irq_impl.h"

arch/alpha/kernel/sys_jensen.c

@@ -26,6 +26,7 @@
 #include <asm/irq.h>
 #include <asm/mmu_context.h>
 #include <asm/pgtable.h>
+#include <asm/tlbflush.h>
 
 #include "proto.h"
 #include "irq_impl.h"

arch/alpha/kernel/sys_miata.c

@@ -24,6 +24,7 @@
 #include <asm/io.h>
 #include <asm/pgtable.h>
 #include <asm/core_cia.h>
+#include <asm/tlbflush.h>
 
 #include "proto.h"
 #include "irq_impl.h"

arch/alpha/kernel/sys_mikasa.c

@@ -26,6 +26,7 @@
 #include <asm/pgtable.h>
 #include <asm/core_apecs.h>
 #include <asm/core_cia.h>
+#include <asm/tlbflush.h>
 
 #include "proto.h"
 #include "irq_impl.h"

arch/alpha/kernel/sys_nautilus.c

@@ -43,6 +43,7 @@
 #include <asm/pgtable.h>
 #include <asm/core_irongate.h>
 #include <asm/hwrpb.h>
+#include <asm/tlbflush.h>
 
 #include "proto.h"
 #include "irq_impl.h"

arch/alpha/kernel/sys_noritake.c

@@ -27,6 +27,7 @@
 #include <asm/pgtable.h>
 #include <asm/core_apecs.h>
 #include <asm/core_cia.h>
+#include <asm/tlbflush.h>
 
 #include "proto.h"
 #include "irq_impl.h"

arch/alpha/kernel/sys_rawhide.c

@@ -23,6 +23,7 @@
 #include <asm/io.h>
 #include <asm/pgtable.h>
 #include <asm/core_mcpcia.h>
+#include <asm/tlbflush.h>
 
 #include "proto.h"
 #include "irq_impl.h"

arch/alpha/kernel/sys_ruffian.c

@@ -24,6 +24,7 @@
 #include <asm/io.h>
 #include <asm/pgtable.h>
 #include <asm/core_cia.h>
+#include <asm/tlbflush.h>
 
 #include "proto.h"
 #include "irq_impl.h"

arch/alpha/kernel/sys_rx164.c

@@ -24,6 +24,7 @@
 #include <asm/io.h>
 #include <asm/pgtable.h>
 #include <asm/core_polaris.h>
+#include <asm/tlbflush.h>
 
 #include "proto.h"
 #include "irq_impl.h"

arch/alpha/kernel/sys_sable.c

@@ -24,6 +24,7 @@
 #include <asm/io.h>
 #include <asm/pgtable.h>
 #include <asm/core_t2.h>
+#include <asm/tlbflush.h>
 
 #include "proto.h"
 #include "irq_impl.h"

arch/alpha/kernel/sys_sio.c

@@ -29,6 +29,7 @@
 #include <asm/pgtable.h>
 #include <asm/core_apecs.h>
 #include <asm/core_lca.h>
+#include <asm/tlbflush.h>
 
 #include "proto.h"
 #include "irq_impl.h"

arch/alpha/kernel/sys_sx164.c

@@ -25,6 +25,7 @@
 #include <asm/pgtable.h>
 #include <asm/core_cia.h>
 #include <asm/hwrpb.h>
+#include <asm/tlbflush.h>
 
 #include "proto.h"
 #include "irq_impl.h"

arch/alpha/kernel/sys_takara.c

@@ -23,6 +23,7 @@
 #include <asm/io.h>
 #include <asm/pgtable.h>
 #include <asm/core_cia.h>
+#include <asm/tlbflush.h>
 
 #include "proto.h"
 #include "irq_impl.h"

arch/alpha/kernel/sys_titan.c

@@ -28,6 +28,7 @@
 #include <asm/pgtable.h>
 #include <asm/core_titan.h>
 #include <asm/hwrpb.h>
+#include <asm/tlbflush.h>
 
 #include "proto.h"
 #include "irq_impl.h"

arch/alpha/kernel/sys_wildfire.c

@@ -23,6 +23,7 @@
 #include <asm/pgtable.h>
 #include <asm/core_wildfire.h>
 #include <asm/hwrpb.h>
+#include <asm/tlbflush.h>
 
 #include "proto.h"
 #include "irq_impl.h"

arch/alpha/mm/fault.c

@@ -12,7 +12,7 @@
 
 #define __EXTERN_INLINE inline
 #include <asm/mmu_context.h>
-#include <asm/pgalloc.h>
+#include <asm/tlbflush.h>
 #undef  __EXTERN_INLINE
 
 #include <linux/signal.h>

arch/cris/drivers/ethernet.c

@@ -1313,7 +1313,7 @@ e100_hardware_send_packet(char *buf, int length)
 static void
 e100_clear_network_leds(unsigned long dummy)
 {
-	if (led_active && jiffies > time_after(jiffies, led_next_time)) {
+	if (led_active && time_after(jiffies, led_next_time)) {
 		e100_set_network_leds(NO_NETWORK_ACTIVITY);
 
 		/* Set the earliest time we may set the LED */

arch/i386/kernel/acpi.c

@@ -43,6 +43,7 @@
 #include <asm/pgtable.h>
 #include <asm/pgalloc.h>
 #include <asm/io_apic.h>
+#include <asm/tlbflush.h>
 
 
 #define PREFIX			"ACPI: "

arch/i386/kernel/vm86.c

@@ -12,10 +12,12 @@
 #include <linux/mm.h>
 #include <linux/smp.h>
 #include <linux/smp_lock.h>
+#include <linux/highmem.h>
 
 #include <asm/uaccess.h>
 #include <asm/pgalloc.h>
 #include <asm/io.h>
+#include <asm/tlbflush.h>
 
 /*
  * Known problems:

arch/i386/mm/init.c

@@ -37,6 +37,7 @@
 #include <asm/e820.h>
 #include <asm/apic.h>
 #include <asm/tlb.h>
+#include <asm/tlbflush.h>
 
 mmu_gather_t mmu_gathers[NR_CPUS];
 unsigned long highstart_pfn, highend_pfn;
@@ -573,7 +574,8 @@ void si_meminfo(struct sysinfo *val)
 }
 
 #if defined(CONFIG_X86_PAE)
-struct kmem_cache_s *pae_pgd_cachep;
+static struct kmem_cache_s *pae_pgd_cachep;
+
 void __init pgtable_cache_init(void)
 {
 	/*
@@ -584,4 +586,96 @@ void __init pgtable_cache_init(void)
 	if (!pae_pgd_cachep)
 		panic("init_pae(): Cannot alloc pae_pgd SLAB cache");
 }
+
+pgd_t *pgd_alloc(struct mm_struct *mm)
+{
+	int i;
+	pgd_t *pgd = kmem_cache_alloc(pae_pgd_cachep, GFP_KERNEL);
+
+	if (pgd) {
+		for (i = 0; i < USER_PTRS_PER_PGD; i++) {
+			unsigned long pmd = __get_free_page(GFP_KERNEL);
+			if (!pmd)
+				goto out_oom;
+			clear_page(pmd);
+			set_pgd(pgd + i, __pgd(1 + __pa(pmd)));
+		}
+		memcpy(pgd + USER_PTRS_PER_PGD,
+			swapper_pg_dir + USER_PTRS_PER_PGD,
+			(PTRS_PER_PGD - USER_PTRS_PER_PGD) * sizeof(pgd_t));
+	}
+	return pgd;
+out_oom:
+	for (i--; i >= 0; i--)
+		free_page((unsigned long)__va(pgd_val(pgd[i])-1));
+	kmem_cache_free(pae_pgd_cachep, pgd);
+	return NULL;
+}
+
+void pgd_free(pgd_t *pgd)
+{
+	int i;
+
+	for (i = 0; i < USER_PTRS_PER_PGD; i++)
+		free_page((unsigned long)__va(pgd_val(pgd[i])-1));
+	kmem_cache_free(pae_pgd_cachep, pgd);
+}
+
+#else
+
+pgd_t *pgd_alloc(struct mm_struct *mm)
+{
+	pgd_t *pgd = (pgd_t *)__get_free_page(GFP_KERNEL);
+
+	if (pgd) {
+		memset(pgd, 0, USER_PTRS_PER_PGD * sizeof(pgd_t));
+		memcpy(pgd + USER_PTRS_PER_PGD,
+			swapper_pg_dir + USER_PTRS_PER_PGD,
+			(PTRS_PER_PGD - USER_PTRS_PER_PGD) * sizeof(pgd_t));
+	}
+	return pgd;
+}
+
+void pgd_free(pgd_t *pgd)
+{
+	free_page((unsigned long)pgd);
+}
 #endif /* CONFIG_X86_PAE */
+
+pte_t *pte_alloc_one_kernel(struct mm_struct *mm, unsigned long address)
+{
+	int count = 0;
+	pte_t *pte;
+   
+   	do {
+		pte = (pte_t *) __get_free_page(GFP_KERNEL);
+		if (pte)
+			clear_page(pte);
+		else {
+			current->state = TASK_UNINTERRUPTIBLE;
+			schedule_timeout(HZ);
+		}
+	} while (!pte && (count++ < 10));
+	return pte;
+}
+
+struct page *pte_alloc_one(struct mm_struct *mm, unsigned long address)
+{
+	int count = 0;
+	struct page *pte;
+   
+   	do {
+#if CONFIG_HIGHPTE
+		pte = alloc_pages(GFP_KERNEL | __GFP_HIGHMEM, 0);
+#else
+		pte = alloc_pages(GFP_KERNEL, 0);
+#endif
+		if (pte)
+			clear_highpage(pte);
+		else {
+			current->state = TASK_UNINTERRUPTIBLE;
+			schedule_timeout(HZ);
+		}
+	} while (!pte && (count++ < 10));
+	return pte;
+}

arch/i386/mm/ioremap.c

@@ -12,6 +12,9 @@
 #include <asm/io.h>
 #include <asm/pgalloc.h>
 #include <asm/fixmap.h>
+#include <asm/cacheflush.h>
+#include <asm/tlbflush.h>
+
 
 static inline void remap_area_pte(pte_t * pte, unsigned long address, unsigned long size,
 	unsigned long phys_addr, unsigned long flags)

drivers/net/irda/irtty.c

@@ -713,8 +713,6 @@ static void irtty_write_wakeup(struct tty_struct *tty)
 
 		self->tx_buff.data += actual;
 		self->tx_buff.len  -= actual;
-
-		self->stats.tx_packets++;		      
 	} else {		
 		/* 
 		 *  Now serial buffer is almost free & we can start 
@@ -722,6 +720,8 @@ static void irtty_write_wakeup(struct tty_struct *tty)
 		 */
 		IRDA_DEBUG(5, __FUNCTION__ "(), finished with frame!\n");
 		
+		self->stats.tx_packets++;		      
+
 		tty->flags &= ~(1 << TTY_DO_WRITE_WAKEUP);
 
 		if (self->new_speed) {

drivers/net/irda/nsc-ircc.c

@@ -88,10 +88,14 @@ static int nsc_ircc_init_338(nsc_chip_t *chip, chipio_t *info);
 
 /* These are the known NSC chips */
 static nsc_chip_t chips[] = {
+/*  Name, {cfg registers}, chip id index reg, chip id expected value, revision mask */
 	{ "PC87108", { 0x150, 0x398, 0xea }, 0x05, 0x10, 0xf0, 
 	  nsc_ircc_probe_108, nsc_ircc_init_108 },
 	{ "PC87338", { 0x398, 0x15c, 0x2e }, 0x08, 0xb0, 0xf8, 
 	  nsc_ircc_probe_338, nsc_ircc_init_338 },
+	/* Contributed by Kevin Thayer - OmniBook 6100 */
+	{ "PC87338?", { 0x2e, 0x15c, 0x398 }, 0x08, 0x00, 0xf8, 
+	  nsc_ircc_probe_338, nsc_ircc_init_338 },
 	{ NULL }
 };
 
@@ -698,6 +702,9 @@ static int nsc_ircc_setup(chipio_t *info)
 	switch_bank(iobase, BANK3);
 	version = inb(iobase+MID);
 
+	IRDA_DEBUG(2, __FUNCTION__  "() Driver %s Found chip version %02x\n",
+		   driver_name, version);
+
 	/* Should be 0x2? */
 	if (0x20 != (version & 0xf0)) {
 		ERROR("%s, Wrong chip version %02x\n", driver_name, version);

drivers/net/irda/w83977af_ir.c

@@ -612,7 +612,7 @@ static void w83977af_dma_write(struct w83977af_ir *self, int iobase)
 	disable_dma(self->io.dma);
 	clear_dma_ff(self->io.dma);
 	set_dma_mode(self->io.dma, DMA_MODE_READ);
-	set_dma_addr(self->io.dma, virt_to_bus(self->tx_buff.data));
+	set_dma_addr(self->io.dma, isa_virt_to_bus(self->tx_buff.data));
 	set_dma_count(self->io.dma, self->tx_buff.len);
 #else
 	setup_dma(self->io.dma, self->tx_buff.data, self->tx_buff.len, 
@@ -770,7 +770,7 @@ int w83977af_dma_receive(struct w83977af_ir *self)
 	disable_dma(self->io.dma);
 	clear_dma_ff(self->io.dma);
 	set_dma_mode(self->io.dma, DMA_MODE_READ);
-	set_dma_addr(self->io.dma, virt_to_bus(self->rx_buff.data));
+	set_dma_addr(self->io.dma, isa_virt_to_bus(self->rx_buff.data));
 	set_dma_count(self->io.dma, self->rx_buff.truesize);
 #else
 	setup_dma(self->io.dma, self->rx_buff.data, self->rx_buff.truesize, 

fs/binfmt_aout.c

@@ -28,6 +28,7 @@
 #include <asm/system.h>
 #include <asm/uaccess.h>
 #include <asm/pgalloc.h>
+#include <asm/cacheflush.h>
 
 static int load_aout_binary(struct linux_binprm *, struct pt_regs * regs);
 static int load_aout_library(struct file*);

fs/ext2/ext2.h

@@ -10,7 +10,6 @@ struct ext2_inode_info {
 	__u32	i_faddr;
 	__u8	i_frag_no;
 	__u8	i_frag_size;
-	__u16	i_osync;
 	__u32	i_file_acl;
 	__u32	i_dir_acl;
 	__u32	i_dtime;

fs/ext2/ialloc.c

@@ -393,7 +393,6 @@ struct inode * ext2_new_inode(struct inode * dir, int mode)
 	ei->i_faddr = 0;
 	ei->i_frag_no = 0;
 	ei->i_frag_size = 0;
-	ei->i_osync = 0;
 	ei->i_file_acl = 0;
 	ei->i_dir_acl = 0;
 	ei->i_dtime = 0;

fs/ext2/inode.c

@@ -405,10 +405,10 @@ static int ext2_alloc_branch(struct inode *inode,
 		mark_buffer_uptodate(bh, 1);
 		unlock_buffer(bh);
 		mark_buffer_dirty_inode(bh, inode);
-		if (IS_SYNC(inode) || EXT2_I(inode)->i_osync) {
-			ll_rw_block (WRITE, 1, &bh);
-			wait_on_buffer (bh);
-		}
+		/* We used to sync bh here if IS_SYNC(inode).
+		 * But we now rely upon generic_osync_inode()
+		 * and b_inode_buffers
+		 */
 		parent = nr;
 	}
 	if (n == num)
@@ -467,17 +467,9 @@ static inline int ext2_splice_branch(struct inode *inode,
 	inode->i_ctime = CURRENT_TIME;
 
 	/* had we spliced it onto indirect block? */
-	if (where->bh) {
+	if (where->bh)
 		mark_buffer_dirty_inode(where->bh, inode);
-		if (IS_SYNC(inode) || ei->i_osync) {
-			ll_rw_block (WRITE, 1, &where->bh);
-			wait_on_buffer(where->bh);
-		}
-	}
 
-	if (IS_SYNC(inode) || ei->i_osync)
-		ext2_sync_inode (inode);
-	else
 	mark_inode_dirty(inode);
 	return 0;
 
@@ -833,10 +825,6 @@ void ext2_truncate (struct inode * inode)
 				   (u32*)partial->bh->b_data + addr_per_block,
 				   (chain+n-1) - partial);
 		mark_buffer_dirty_inode(partial->bh, inode);
-		if (IS_SYNC(inode)) {
-			ll_rw_block (WRITE, 1, &partial->bh);
-			wait_on_buffer (partial->bh);
-		}
 		brelse (partial->bh);
 		partial--;
 	}
@@ -868,10 +856,12 @@ void ext2_truncate (struct inode * inode)
 			;
 	}
 	inode->i_mtime = inode->i_ctime = CURRENT_TIME;
-	if (IS_SYNC(inode))
+	if (IS_SYNC(inode)) {
+		fsync_inode_buffers(inode);
 		ext2_sync_inode (inode);
-	else
+	} else {
 		mark_inode_dirty(inode);
+	}
 }
 
 static struct ext2_inode *ext2_get_inode(struct super_block *sb, ino_t ino,
@@ -958,7 +948,6 @@ void ext2_read_inode (struct inode * inode)
 	ei->i_faddr = le32_to_cpu(raw_inode->i_faddr);
 	ei->i_frag_no = raw_inode->i_frag;
 	ei->i_frag_size = raw_inode->i_fsize;
-	ei->i_osync = 0;
 	ei->i_file_acl = le32_to_cpu(raw_inode->i_file_acl);
 	ei->i_dir_acl = 0;
 	if (S_ISREG(inode->i_mode))

fs/ext3/balloc.c

@@ -542,6 +542,7 @@ int ext3_new_block (handle_t *handle, struct inode * inode,
 	int i, j, k, tmp, alloctmp;
 	int bitmap_nr;
 	int fatal = 0, err;
+	int performed_allocation = 0;
 	struct super_block * sb;
 	struct ext3_group_desc * gdp;
 	struct ext3_super_block * es;
@@ -644,8 +645,7 @@ int ext3_new_block (handle_t *handle, struct inode * inode,
 	}
 
 	/* No space left on the device */
-	unlock_super (sb);
-	return 0;
+	goto out;
 
 search_back:
 	/* 
@@ -694,6 +694,7 @@ int ext3_new_block (handle_t *handle, struct inode * inode,
 	J_ASSERT_BH(bh, !ext3_test_bit(j, bh->b_data));
 	BUFFER_TRACE(bh, "setting bitmap bit");
 	ext3_set_bit(j, bh->b_data);
+	performed_allocation = 1;
 
 #ifdef CONFIG_JBD_DEBUG
 	{
@@ -815,6 +816,11 @@ int ext3_new_block (handle_t *handle, struct inode * inode,
 		ext3_std_error(sb, fatal);
 	}
 	unlock_super (sb);
+	/*
+	 * Undo the block allocation
+	 */
+	if (!performed_allocation)
+		DQUOT_FREE_BLOCK(inode, 1);
 	return 0;
 	
 }

fs/ext3/inode.c

@@ -584,8 +584,6 @@ static int ext3_alloc_branch(handle_t *handle, struct inode *inode,
 			
 			parent = nr;
 		}
-		if (IS_SYNC(inode))
-			handle->h_sync = 1;
 	}
 	if (n == num)
 		return 0;

fs/jbd/journal.c

@@ -267,6 +267,7 @@ int kjournald(void *arg)
 	journal->j_task = NULL;
 	wake_up(&journal->j_wait_done_commit);
 	jbd_debug(1, "Journal thread exiting.\n");
+	unlock_kernel();
 	return 0;
 }
 

include/asm-alpha/cacheflush.h

+#ifndef _ALPHA_CACHEFLUSH_H
+#define _ALPHA_CACHEFLUSH_H
+
+#include <linux/config.h>
+#include <linux/mm.h>
+
+/* Caches aren't brain-dead on the Alpha. */
+#define flush_cache_all()			do { } while (0)
+#define flush_cache_mm(mm)			do { } while (0)
+#define flush_cache_range(vma, start, end)	do { } while (0)
+#define flush_cache_page(vma, vmaddr)		do { } while (0)
+#define flush_page_to_ram(page)			do { } while (0)
+#define flush_dcache_page(page)			do { } while (0)
+
+/* Note that the following two definitions are _highly_ dependent
+   on the contexts in which they are used in the kernel.  I personally
+   think it is criminal how loosely defined these macros are.  */
+
+/* We need to flush the kernel's icache after loading modules.  The
+   only other use of this macro is in load_aout_interp which is not
+   used on Alpha. 
+
+   Note that this definition should *not* be used for userspace
+   icache flushing.  While functional, it is _way_ overkill.  The
+   icache is tagged with ASNs and it suffices to allocate a new ASN
+   for the process.  */
+#ifndef CONFIG_SMP
+#define flush_icache_range(start, end)		imb()
+#else
+#define flush_icache_range(start, end)		smp_imb()
+extern void smp_imb(void);
+#endif
+
+/* We need to flush the userspace icache after setting breakpoints in
+   ptrace.
+
+   Instead of indiscriminately using imb, take advantage of the fact
+   that icache entries are tagged with the ASN and load a new mm context.  */
+/* ??? Ought to use this in arch/alpha/kernel/signal.c too.  */
+
+#ifndef CONFIG_SMP
+extern void __load_new_mm_context(struct mm_struct *);
+static inline void
+flush_icache_user_range(struct vm_area_struct *vma, struct page *page,
+			unsigned long addr, int len)
+{
+	if (vma->vm_flags & VM_EXEC) {
+		struct mm_struct *mm = vma->vm_mm;
+		if (current->active_mm == mm)
+			__load_new_mm_context(mm);
+		else
+			mm->context[smp_processor_id()] = 0;
+	}
+}
+#else
+extern void flush_icache_user_range(struct vm_area_struct *vma,
+		struct page *page, unsigned long addr, int len);
+#endif
+
+/* This is used only in do_no_page and do_swap_page.  */
+#define flush_icache_page(vma, page) \
+  flush_icache_user_range((vma), (page), 0, 0)
+
+#endif /* _ALPHA_CACHEFLUSH_H */

include/asm-alpha/pgalloc.h

@@ -3,228 +3,6 @@
 
 #include <linux/config.h>
 
-#ifndef __EXTERN_INLINE
-#define __EXTERN_INLINE extern inline
-#define __MMU_EXTERN_INLINE
-#endif
-
-extern void __load_new_mm_context(struct mm_struct *);
-
-
-/* Caches aren't brain-dead on the Alpha. */
-#define flush_cache_all()			do { } while (0)
-#define flush_cache_mm(mm)			do { } while (0)
-#define flush_cache_range(vma, start, end)	do { } while (0)
-#define flush_cache_page(vma, vmaddr)		do { } while (0)
-#define flush_page_to_ram(page)			do { } while (0)
-#define flush_dcache_page(page)			do { } while (0)
-
-/* Note that the following two definitions are _highly_ dependent
-   on the contexts in which they are used in the kernel.  I personally
-   think it is criminal how loosely defined these macros are.  */
-
-/* We need to flush the kernel's icache after loading modules.  The
-   only other use of this macro is in load_aout_interp which is not
-   used on Alpha. 
-
-   Note that this definition should *not* be used for userspace
-   icache flushing.  While functional, it is _way_ overkill.  The
-   icache is tagged with ASNs and it suffices to allocate a new ASN
-   for the process.  */
-#ifndef CONFIG_SMP
-#define flush_icache_range(start, end)		imb()
-#else
-#define flush_icache_range(start, end)		smp_imb()
-extern void smp_imb(void);
-#endif
-
-
-/*
- * Use a few helper functions to hide the ugly broken ASN
- * numbers on early Alphas (ev4 and ev45)
- */
-
-__EXTERN_INLINE void
-ev4_flush_tlb_current(struct mm_struct *mm)
-{
-	__load_new_mm_context(mm);
-	tbiap();
-}
-
-__EXTERN_INLINE void
-ev5_flush_tlb_current(struct mm_struct *mm)
-{
-	__load_new_mm_context(mm);
-}
-
-static inline void
-flush_tlb_other(struct mm_struct *mm)
-{
-	long * mmc = &mm->context[smp_processor_id()];
-	/*
-	 * Check it's not zero first to avoid cacheline ping pong when
-	 * possible.
-	 */
-	if (*mmc)
-		*mmc = 0;
-}
-
-/* We need to flush the userspace icache after setting breakpoints in
-   ptrace.
-
-   Instead of indiscriminately using imb, take advantage of the fact
-   that icache entries are tagged with the ASN and load a new mm context.  */
-/* ??? Ought to use this in arch/alpha/kernel/signal.c too.  */
-
-#ifndef CONFIG_SMP
-static inline void
-flush_icache_user_range(struct vm_area_struct *vma, struct page *page,
-			unsigned long addr, int len)
-{
-	if (vma->vm_flags & VM_EXEC) {
-		struct mm_struct *mm = vma->vm_mm;
-		if (current->active_mm == mm)
-			__load_new_mm_context(mm);
-		else
-			mm->context[smp_processor_id()] = 0;
-	}
-}
-#else
-extern void flush_icache_user_range(struct vm_area_struct *vma,
-		struct page *page, unsigned long addr, int len);
-#endif
-
-/* this is used only in do_no_page and do_swap_page */
-#define flush_icache_page(vma, page)	flush_icache_user_range((vma), (page), 0, 0)
-
-/*
- * Flush just one page in the current TLB set.
- * We need to be very careful about the icache here, there
- * is no way to invalidate a specific icache page..
- */
-
-__EXTERN_INLINE void
-ev4_flush_tlb_current_page(struct mm_struct * mm,
-			   struct vm_area_struct *vma,
-			   unsigned long addr)
-{
-	int tbi_flag = 2;
-	if (vma->vm_flags & VM_EXEC) {
-		__load_new_mm_context(mm);
-		tbi_flag = 3;
-	}
-	tbi(tbi_flag, addr);
-}
-
-__EXTERN_INLINE void
-ev5_flush_tlb_current_page(struct mm_struct * mm,
-			   struct vm_area_struct *vma,
-			   unsigned long addr)
-{
-	if (vma->vm_flags & VM_EXEC)
-		__load_new_mm_context(mm);
-	else
-		tbi(2, addr);
-}
-
-
-#ifdef CONFIG_ALPHA_GENERIC
-# define flush_tlb_current		alpha_mv.mv_flush_tlb_current
-# define flush_tlb_current_page		alpha_mv.mv_flush_tlb_current_page
-#else
-# ifdef CONFIG_ALPHA_EV4
-#  define flush_tlb_current		ev4_flush_tlb_current
-#  define flush_tlb_current_page	ev4_flush_tlb_current_page
-# else
-#  define flush_tlb_current		ev5_flush_tlb_current
-#  define flush_tlb_current_page	ev5_flush_tlb_current_page
-# endif
-#endif
-
-#ifdef __MMU_EXTERN_INLINE
-#undef __EXTERN_INLINE
-#undef __MMU_EXTERN_INLINE
-#endif
-
-/*
- * Flush current user mapping.
- */
-static inline void flush_tlb(void)
-{
-	flush_tlb_current(current->active_mm);
-}
-
-/*
- * Flush a specified range of user mapping page tables
- * from TLB.
- * Although Alpha uses VPTE caches, this can be a nop, as Alpha does
- * not have finegrained tlb flushing, so it will flush VPTE stuff
- * during next flush_tlb_range.
- */
-static inline void flush_tlb_pgtables(struct mm_struct *mm,
-	unsigned long start, unsigned long end)
-{
-}
-
-#ifndef CONFIG_SMP
-/*
- * Flush everything (kernel mapping may also have
- * changed due to vmalloc/vfree)
- */
-static inline void flush_tlb_all(void)
-{
-	tbia();
-}
-
-/*
- * Flush a specified user mapping
- */
-static inline void flush_tlb_mm(struct mm_struct *mm)
-{
-	if (mm == current->active_mm)
-		flush_tlb_current(mm);
-	else
-		flush_tlb_other(mm);
-}
-
-/*
- * Page-granular tlb flush.
- *
- * do a tbisd (type = 2) normally, and a tbis (type = 3)
- * if it is an executable mapping.  We want to avoid the
- * itlb flush, because that potentially also does a
- * icache flush.
- */
-static inline void flush_tlb_page(struct vm_area_struct *vma,
-	unsigned long addr)
-{
-	struct mm_struct * mm = vma->vm_mm;
-
-	if (mm == current->active_mm)
-		flush_tlb_current_page(mm, vma, addr);
-	else
-		flush_tlb_other(mm);
-}
-
-/*
- * Flush a specified range of user mapping:  on the
- * Alpha we flush the whole user tlb.
- */
-static inline void flush_tlb_range(struct vm_area_struct *vma,
-	unsigned long start, unsigned long end)
-{
-	flush_tlb_mm(vma->vm_mm);
-}
-
-#else /* CONFIG_SMP */
-
-extern void flush_tlb_all(void);
-extern void flush_tlb_mm(struct mm_struct *);
-extern void flush_tlb_page(struct vm_area_struct *, unsigned long);
-extern void flush_tlb_range(struct vm_area_struct *, unsigned long, unsigned long);
-
-#endif /* CONFIG_SMP */
-
 /*      
  * Allocate and free page tables. The xxx_kernel() versions are
  * used to allocate a kernel page table - this turns on ASN bits
@@ -292,4 +70,6 @@ pte_free(struct page *page)
 	__free_page(page);
 }
 
+#define check_pgt_cache()	do { } while (0)
+
 #endif /* _ALPHA_PGALLOC_H */

include/asm-alpha/tlbflush.h

+#ifndef _ALPHA_TLBFLUSH_H
+#define _ALPHA_TLBFLUSH_H
+
+#include <linux/config.h>
+#include <linux/mm.h>
+
+#ifndef __EXTERN_INLINE
+#define __EXTERN_INLINE extern inline
+#define __MMU_EXTERN_INLINE
+#endif
+
+extern void __load_new_mm_context(struct mm_struct *);
+
+
+/* Use a few helper functions to hide the ugly broken ASN
+   numbers on early Alphas (ev4 and ev45).  */
+
+__EXTERN_INLINE void
+ev4_flush_tlb_current(struct mm_struct *mm)
+{
+	__load_new_mm_context(mm);
+	tbiap();
+}
+
+__EXTERN_INLINE void
+ev5_flush_tlb_current(struct mm_struct *mm)
+{
+	__load_new_mm_context(mm);
+}
+
+/* Flush just one page in the current TLB set.  We need to be very
+   careful about the icache here, there is no way to invalidate a
+   specific icache page.  */
+
+__EXTERN_INLINE void
+ev4_flush_tlb_current_page(struct mm_struct * mm,
+			   struct vm_area_struct *vma,
+			   unsigned long addr)
+{
+	int tbi_flag = 2;
+	if (vma->vm_flags & VM_EXEC) {
+		__load_new_mm_context(mm);
+		tbi_flag = 3;
+	}
+	tbi(tbi_flag, addr);
+}
+
+__EXTERN_INLINE void
+ev5_flush_tlb_current_page(struct mm_struct * mm,
+			   struct vm_area_struct *vma,
+			   unsigned long addr)
+{
+	if (vma->vm_flags & VM_EXEC)
+		__load_new_mm_context(mm);
+	else
+		tbi(2, addr);
+}
+
+
+#ifdef CONFIG_ALPHA_GENERIC
+# define flush_tlb_current		alpha_mv.mv_flush_tlb_current
+# define flush_tlb_current_page		alpha_mv.mv_flush_tlb_current_page
+#else
+# ifdef CONFIG_ALPHA_EV4
+#  define flush_tlb_current		ev4_flush_tlb_current
+#  define flush_tlb_current_page	ev4_flush_tlb_current_page
+# else
+#  define flush_tlb_current		ev5_flush_tlb_current
+#  define flush_tlb_current_page	ev5_flush_tlb_current_page
+# endif
+#endif
+
+#ifdef __MMU_EXTERN_INLINE
+#undef __EXTERN_INLINE
+#undef __MMU_EXTERN_INLINE
+#endif
+
+/* Flush current user mapping.  */
+static inline void
+flush_tlb(void)
+{
+	flush_tlb_current(current->active_mm);
+}
+
+/* Flush someone else's user mapping.  */
+static inline void
+flush_tlb_other(struct mm_struct *mm)
+{
+	long *mmc = &mm->context[smp_processor_id()];
+	/* Check it's not zero first to avoid cacheline ping pong
+	   when possible.  */
+	if (*mmc) *mmc = 0;
+}
+
+/* Flush a specified range of user mapping page tables from TLB.
+   Although Alpha uses VPTE caches, this can be a nop, as Alpha does
+   not have finegrained tlb flushing, so it will flush VPTE stuff
+   during next flush_tlb_range.  */
+
+static inline void
+flush_tlb_pgtables(struct mm_struct *mm, unsigned long start,
+		   unsigned long end)
+{
+}
+
+#ifndef CONFIG_SMP
+/* Flush everything (kernel mapping may also have changed
+   due to vmalloc/vfree).  */
+static inline void flush_tlb_all(void)
+{
+	tbia();
+}
+
+/* Flush a specified user mapping.  */
+static inline void
+flush_tlb_mm(struct mm_struct *mm)
+{
+	if (mm == current->active_mm)
+		flush_tlb_current(mm);
+	else
+		flush_tlb_other(mm);
+}
+
+/* Page-granular tlb flush.  */
+static inline void
+flush_tlb_page(struct vm_area_struct *vma, unsigned long addr)
+{
+	struct mm_struct *mm = vma->vm_mm;
+
+	if (mm == current->active_mm)
+		flush_tlb_current_page(mm, vma, addr);
+	else
+		flush_tlb_other(mm);
+}
+
+/* Flush a specified range of user mapping.  On the Alpha we flush
+   the whole user tlb.  */
+static inline void
+flush_tlb_range(struct vm_area_struct *vma, unsigned long start,
+		unsigned long end)
+{
+	flush_tlb_mm(vma->vm_mm);
+}
+
+#else /* CONFIG_SMP */
+
+extern void flush_tlb_all(void);
+extern void flush_tlb_mm(struct mm_struct *);
+extern void flush_tlb_page(struct vm_area_struct *, unsigned long);
+extern void flush_tlb_range(struct vm_area_struct *, unsigned long,
+			    unsigned long);
+
+#endif /* CONFIG_SMP */
+
+#endif /* _ALPHA_TLBFLUSH_H */

include/asm-i386/cacheflush.h

+#ifndef _I386_CACHEFLUSH_H
+#define _I386_CACHEFLUSH_H
+
+/* Keep includes the same across arches.  */
+#include <linux/mm.h>
+
+/* Caches aren't brain-dead on the intel. */
+#define flush_cache_all()			do { } while (0)
+#define flush_cache_mm(mm)			do { } while (0)
+#define flush_cache_range(vma, start, end)	do { } while (0)
+#define flush_cache_page(vma, vmaddr)		do { } while (0)
+#define flush_page_to_ram(page)			do { } while (0)
+#define flush_dcache_page(page)			do { } while (0)
+#define flush_icache_range(start, end)		do { } while (0)
+#define flush_icache_page(vma,pg)		do { } while (0)
+#define flush_icache_user_range(vma,pg,adr,len)	do { } while (0)
+
+#endif /* _I386_CACHEFLUSH_H */

include/asm-i386/pgalloc.h

@@ -5,7 +5,6 @@
 #include <asm/processor.h>
 #include <asm/fixmap.h>
 #include <linux/threads.h>
-#include <linux/highmem.h>
 
 #define pmd_populate_kernel(mm, pmd, pte) \
 		set_pmd(pmd, __pmd(_PAGE_TABLE + __pa(pte)))
@@ -20,109 +19,11 @@ static inline void pmd_populate(struct mm_struct *mm, pmd_t *pmd, struct page *p
  * Allocate and free page tables.
  */
 
-#if defined (CONFIG_X86_PAE)
-/*
- * We can't include <linux/slab.h> here, thus these uglinesses.
- */
-struct kmem_cache_s;
-
-extern struct kmem_cache_s *pae_pgd_cachep;
-extern void *kmem_cache_alloc(struct kmem_cache_s *, int);
-extern void kmem_cache_free(struct kmem_cache_s *, void *);
-
-
-static inline pgd_t *pgd_alloc(struct mm_struct *mm)
-{
-	int i;
-	pgd_t *pgd = kmem_cache_alloc(pae_pgd_cachep, GFP_KERNEL);
-
-	if (pgd) {
-		for (i = 0; i < USER_PTRS_PER_PGD; i++) {
-			unsigned long pmd = __get_free_page(GFP_KERNEL);
-			if (!pmd)
-				goto out_oom;
-			clear_page(pmd);
-			set_pgd(pgd + i, __pgd(1 + __pa(pmd)));
-		}
-		memcpy(pgd + USER_PTRS_PER_PGD,
-			swapper_pg_dir + USER_PTRS_PER_PGD,
-			(PTRS_PER_PGD - USER_PTRS_PER_PGD) * sizeof(pgd_t));
-	}
-	return pgd;
-out_oom:
-	for (i--; i >= 0; i--)
-		free_page((unsigned long)__va(pgd_val(pgd[i])-1));
-	kmem_cache_free(pae_pgd_cachep, pgd);
-	return NULL;
-}
-
-#else
-
-static inline pgd_t *pgd_alloc(struct mm_struct *mm)
-{
-	pgd_t *pgd = (pgd_t *)__get_free_page(GFP_KERNEL);
-
-	if (pgd) {
-		memset(pgd, 0, USER_PTRS_PER_PGD * sizeof(pgd_t));
-		memcpy(pgd + USER_PTRS_PER_PGD,
-			swapper_pg_dir + USER_PTRS_PER_PGD,
-			(PTRS_PER_PGD - USER_PTRS_PER_PGD) * sizeof(pgd_t));
-	}
-	return pgd;
-}
-
-#endif /* CONFIG_X86_PAE */
+extern pgd_t *pgd_alloc(struct mm_struct *);
+extern void pgd_free(pgd_t *pgd);
 
-static inline void pgd_free(pgd_t *pgd)
-{
-#if defined(CONFIG_X86_PAE)
-	int i;
-
-	for (i = 0; i < USER_PTRS_PER_PGD; i++)
-		free_page((unsigned long)__va(pgd_val(pgd[i])-1));
-	kmem_cache_free(pae_pgd_cachep, pgd);
-#else
-	free_page((unsigned long)pgd);
-#endif
-}
-
-static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm, unsigned long address)
-{
-	int count = 0;
-	pte_t *pte;
-   
-   	do {
-		pte = (pte_t *) __get_free_page(GFP_KERNEL);
-		if (pte)
-			clear_page(pte);
-		else {
-			current->state = TASK_UNINTERRUPTIBLE;
-			schedule_timeout(HZ);
-		}
-	} while (!pte && (count++ < 10));
-	return pte;
-}
-
-static inline struct page *pte_alloc_one(struct mm_struct *mm, unsigned long address)
-{
-	int count = 0;
-	struct page *pte;
-   
-   	do {
-#if CONFIG_HIGHPTE
-		pte = alloc_pages(GFP_KERNEL | __GFP_HIGHMEM, 0);
-#else
-		pte = alloc_pages(GFP_KERNEL, 0);
-#endif
-		if (pte)
-			clear_highpage(pte);
-		else {
-			current->state = TASK_UNINTERRUPTIBLE;
-			schedule_timeout(HZ);
-		}
-	} while (!pte && (count++ < 10));
-	return pte;
-}
+extern pte_t *pte_alloc_one_kernel(struct mm_struct *, unsigned long);
+extern struct page *pte_alloc_one(struct mm_struct *, unsigned long);
 
 static inline void pte_free_kernel(pte_t *pte)
 {
@@ -144,85 +45,6 @@ static inline void pte_free(struct page *pte)
 #define pmd_free(x)			do { } while (0)
 #define pgd_populate(mm, pmd, pte)	BUG()
 
-/*
- * TLB flushing:
- *
- *  - flush_tlb() flushes the current mm struct TLBs
- *  - flush_tlb_all() flushes all processes TLBs
- *  - flush_tlb_mm(mm) flushes the specified mm context TLB's
- *  - flush_tlb_page(vma, vmaddr) flushes one page
- *  - flush_tlb_range(vma, start, end) flushes a range of pages
- *  - flush_tlb_pgtables(mm, start, end) flushes a range of page tables
- *
- * ..but the i386 has somewhat limited tlb flushing capabilities,
- * and page-granular flushes are available only on i486 and up.
- */
-
-#ifndef CONFIG_SMP
-
-#define flush_tlb() __flush_tlb()
-#define flush_tlb_all() __flush_tlb_all()
-#define local_flush_tlb() __flush_tlb()
-
-static inline void flush_tlb_mm(struct mm_struct *mm)
-{
-	if (mm == current->active_mm)
-		__flush_tlb();
-}
-
-static inline void flush_tlb_page(struct vm_area_struct *vma,
-	unsigned long addr)
-{
-	if (vma->vm_mm == current->active_mm)
-		__flush_tlb_one(addr);
-}
-
-static inline void flush_tlb_range(struct vm_area_struct *vma,
-	unsigned long start, unsigned long end)
-{
-	if (vma->vm_mm == current->active_mm)
-		__flush_tlb();
-}
-
-#else
-
-#include <asm/smp.h>
-
-#define local_flush_tlb() \
-	__flush_tlb()
-
-extern void flush_tlb_all(void);
-extern void flush_tlb_current_task(void);
-extern void flush_tlb_mm(struct mm_struct *);
-extern void flush_tlb_page(struct vm_area_struct *, unsigned long);
-
-#define flush_tlb()	flush_tlb_current_task()
-
-static inline void flush_tlb_range(struct vm_area_struct * vma, unsigned long start, unsigned long end)
-{
-	flush_tlb_mm(vma->vm_mm);
-}
-
-#define TLBSTATE_OK	1
-#define TLBSTATE_LAZY	2
-
-struct tlb_state
-{
-	struct mm_struct *active_mm;
-	int state;
-	char __cacheline_padding[24];
-};
-extern struct tlb_state cpu_tlbstate[NR_CPUS];
-
-
-#endif
-
-static inline void flush_tlb_pgtables(struct mm_struct *mm,
-				      unsigned long start, unsigned long end)
-{
-	/* i386 does not keep any page table caches in TLB */
-}
-
 #define check_pgt_cache()	do { } while (0)
 
 #endif /* _I386_PGALLOC_H */

include/asm-i386/pgtable.h

@@ -24,71 +24,6 @@
 extern pgd_t swapper_pg_dir[1024];
 extern void paging_init(void);
 
-/* Caches aren't brain-dead on the intel. */
-#define flush_cache_all()			do { } while (0)
-#define flush_cache_mm(mm)			do { } while (0)
-#define flush_cache_range(vma, start, end)	do { } while (0)
-#define flush_cache_page(vma, vmaddr)		do { } while (0)
-#define flush_page_to_ram(page)			do { } while (0)
-#define flush_dcache_page(page)			do { } while (0)
-#define flush_icache_range(start, end)		do { } while (0)
-#define flush_icache_page(vma,pg)		do { } while (0)
-#define flush_icache_user_range(vma,pg,adr,len)	do { } while (0)
-
-#define __flush_tlb()							\
-	do {								\
-		unsigned int tmpreg;					\
-									\
-		__asm__ __volatile__(					\
-			"movl %%cr3, %0;  # flush TLB \n"		\
-			"movl %0, %%cr3;              \n"		\
-			: "=r" (tmpreg)					\
-			:: "memory");					\
-	} while (0)
-
-/*
- * Global pages have to be flushed a bit differently. Not a real
- * performance problem because this does not happen often.
- */
-#define __flush_tlb_global()						\
-	do {								\
-		unsigned int tmpreg;					\
-									\
-		__asm__ __volatile__(					\
-			"movl %1, %%cr4;  # turn off PGE     \n"	\
-			"movl %%cr3, %0;  # flush TLB        \n"	\
-			"movl %0, %%cr3;                     \n"	\
-			"movl %2, %%cr4;  # turn PGE back on \n"	\
-			: "=&r" (tmpreg)				\
-			: "r" (mmu_cr4_features & ~X86_CR4_PGE),	\
-			  "r" (mmu_cr4_features)			\
-			: "memory");					\
-	} while (0)
-
-extern unsigned long pgkern_mask;
-
-/*
- * Do not check the PGE bit unnecesserily if this is a PPro+ kernel.
- */
-#ifdef CONFIG_X86_PGE
-# define __flush_tlb_all() __flush_tlb_global()
-#else
-# define __flush_tlb_all()						\
-	do {								\
-		if (cpu_has_pge)					\
-			__flush_tlb_global();				\
-		else							\
-			__flush_tlb();					\
-	} while (0)
-#endif
-
-#ifndef CONFIG_X86_INVLPG
-#define __flush_tlb_one(addr) __flush_tlb()
-#else
-#define __flush_tlb_one(addr) \
-__asm__ __volatile__("invlpg %0": :"m" (*(char *) addr))
-#endif
-
 /*
  * ZERO_PAGE is a global shared page that is always zero: used
  * for zero-mapped memory areas etc..

include/asm-i386/tlbflush.h

+#ifndef _I386_TLBFLUSH_H
+#define _I386_TLBFLUSH_H
+
+#include <linux/config.h>
+#include <linux/mm.h>
+#include <asm/processor.h>
+
+#define __flush_tlb()							\
+	do {								\
+		unsigned int tmpreg;					\
+									\
+		__asm__ __volatile__(					\
+			"movl %%cr3, %0;  # flush TLB \n"		\
+			"movl %0, %%cr3;              \n"		\
+			: "=r" (tmpreg)					\
+			:: "memory");					\
+	} while (0)
+
+/*
+ * Global pages have to be flushed a bit differently. Not a real
+ * performance problem because this does not happen often.
+ */
+#define __flush_tlb_global()						\
+	do {								\
+		unsigned int tmpreg;					\
+									\
+		__asm__ __volatile__(					\
+			"movl %1, %%cr4;  # turn off PGE     \n"	\
+			"movl %%cr3, %0;  # flush TLB        \n"	\
+			"movl %0, %%cr3;                     \n"	\
+			"movl %2, %%cr4;  # turn PGE back on \n"	\
+			: "=&r" (tmpreg)				\
+			: "r" (mmu_cr4_features & ~X86_CR4_PGE),	\
+			  "r" (mmu_cr4_features)			\
+			: "memory");					\
+	} while (0)
+
+extern unsigned long pgkern_mask;
+
+/*
+ * Do not check the PGE bit unnecesserily if this is a PPro+ kernel.
+ */
+#ifdef CONFIG_X86_PGE
+# define __flush_tlb_all() __flush_tlb_global()
+#else
+# define __flush_tlb_all()						\
+	do {								\
+		if (cpu_has_pge)					\
+			__flush_tlb_global();				\
+		else							\
+			__flush_tlb();					\
+	} while (0)
+#endif
+
+#ifndef CONFIG_X86_INVLPG
+#define __flush_tlb_one(addr) __flush_tlb()
+#else
+#define __flush_tlb_one(addr) \
+__asm__ __volatile__("invlpg %0": :"m" (*(char *) addr))
+#endif
+
+/*
+ * TLB flushing:
+ *
+ *  - flush_tlb() flushes the current mm struct TLBs
+ *  - flush_tlb_all() flushes all processes TLBs
+ *  - flush_tlb_mm(mm) flushes the specified mm context TLB's
+ *  - flush_tlb_page(vma, vmaddr) flushes one page
+ *  - flush_tlb_range(vma, start, end) flushes a range of pages
+ *  - flush_tlb_pgtables(mm, start, end) flushes a range of page tables
+ *
+ * ..but the i386 has somewhat limited tlb flushing capabilities,
+ * and page-granular flushes are available only on i486 and up.
+ */
+
+#ifndef CONFIG_SMP
+
+#define flush_tlb() __flush_tlb()
+#define flush_tlb_all() __flush_tlb_all()
+#define local_flush_tlb() __flush_tlb()
+
+static inline void flush_tlb_mm(struct mm_struct *mm)
+{
+	if (mm == current->active_mm)
+		__flush_tlb();
+}
+
+static inline void flush_tlb_page(struct vm_area_struct *vma,
+	unsigned long addr)
+{
+	if (vma->vm_mm == current->active_mm)
+		__flush_tlb_one(addr);
+}
+
+static inline void flush_tlb_range(struct vm_area_struct *vma,
+	unsigned long start, unsigned long end)
+{
+	if (vma->vm_mm == current->active_mm)
+		__flush_tlb();
+}
+
+#else
+
+#include <asm/smp.h>
+
+#define local_flush_tlb() \
+	__flush_tlb()
+
+extern void flush_tlb_all(void);
+extern void flush_tlb_current_task(void);
+extern void flush_tlb_mm(struct mm_struct *);
+extern void flush_tlb_page(struct vm_area_struct *, unsigned long);
+
+#define flush_tlb()	flush_tlb_current_task()
+
+static inline void flush_tlb_range(struct vm_area_struct * vma, unsigned long start, unsigned long end)
+{
+	flush_tlb_mm(vma->vm_mm);
+}
+
+#define TLBSTATE_OK	1
+#define TLBSTATE_LAZY	2
+
+struct tlb_state
+{
+	struct mm_struct *active_mm;
+	int state;
+	char __cacheline_padding[24];
+};
+extern struct tlb_state cpu_tlbstate[NR_CPUS];
+
+
+#endif
+
+static inline void flush_tlb_pgtables(struct mm_struct *mm,
+				      unsigned long start, unsigned long end)
+{
+	/* i386 does not keep any page table caches in TLB */
+}
+
+#endif /* _I386_TLBFLUSH_H */

include/linux/highmem.h

@@ -4,6 +4,7 @@
 #include <linux/config.h>
 #include <linux/bio.h>
 #include <linux/fs.h>
+#include <asm/cacheflush.h>
 
 #ifdef CONFIG_HIGHMEM
 

include/net/irda/discovery.h

@@ -39,6 +39,14 @@
 #define DISCOVERY_EXPIRE_TIMEOUT 6*HZ
 #define DISCOVERY_DEFAULT_SLOTS  0
 
+/* Types of discovery */
+typedef enum {
+	DISCOVERY_LOG,		/* What's in our discovery log */
+	DISCOVERY_ACTIVE,	/* Doing our own discovery on the medium */
+	DISCOVERY_PASSIVE,	/* Peer doing discovery on the medium */
+	EXPIRY_TIMEOUT,		/* Entry expired due to timeout */
+} DISCOVERY_MODE;
+
 #define NICKNAME_MAX_LEN 21
 
 /*

include/net/irda/ircomm_tty.h

@@ -44,6 +44,11 @@
 #define IRCOMM_TTY_MAJOR 161
 #define IRCOMM_TTY_MINOR 0
 
+/* This is used as an initial value to max_header_size before the proper
+ * value is filled in (5 for ttp, 4 for lmp). This allow us to detect
+ * the state of the underlying connection. - Jean II */
+#define IRCOMM_TTY_HDR_UNITIALISED	32
+
 /*
  * IrCOMM TTY driver state
  */

include/net/irda/irlan_client.h

@@ -34,7 +34,7 @@
 #include <net/irda/irlan_event.h>
 
 void irlan_client_start_kick_timer(struct irlan_cb *self, int timeout);
-void irlan_client_discovery_indication(discovery_t *, void *);
+void irlan_client_discovery_indication(discovery_t *, DISCOVERY_MODE, void *);
 void irlan_client_wakeup(struct irlan_cb *self, __u32 saddr, __u32 daddr);
 
 void irlan_client_open_ctrl_tsap( struct irlan_cb *self);

include/net/irda/irlmp.h

@@ -72,7 +72,7 @@ typedef enum {
 	S_END,
 } SERVICE;
 
-typedef void (*DISCOVERY_CALLBACK1) (discovery_t *, void *);
+typedef void (*DISCOVERY_CALLBACK1) (discovery_t *, DISCOVERY_MODE, void *);
 typedef void (*DISCOVERY_CALLBACK2) (hashbin_t *, void *);
 
 typedef struct {
@@ -214,7 +214,7 @@ void irlmp_disconnect_indication(struct lsap_cb *self, LM_REASON reason,
 				 struct sk_buff *userdata);
 int  irlmp_disconnect_request(struct lsap_cb *, struct sk_buff *userdata);
 
-void irlmp_discovery_confirm(hashbin_t *discovery_log);
+void irlmp_discovery_confirm(hashbin_t *discovery_log, DISCOVERY_MODE);
 void irlmp_discovery_request(int nslots);
 struct irda_device_info *irlmp_get_discoveries(int *pn, __u16 mask, int nslots);
 void irlmp_do_expiry(void);

kernel/fork.c

@@ -29,6 +29,8 @@
 #include <asm/pgalloc.h>
 #include <asm/uaccess.h>
 #include <asm/mmu_context.h>
+#include <asm/cacheflush.h>
+#include <asm/tlbflush.h>
 
 static kmem_cache_t *task_struct_cachep;
 

kernel/module.c

@@ -11,6 +11,7 @@
 #include <linux/kmod.h>
 #include <linux/seq_file.h>
 #include <linux/fs.h>
+#include <asm/cacheflush.h>
 
 /*
  * Originally by Anonymous (as far as I know...)

kernel/sched.c

@@ -843,7 +843,8 @@ asmlinkage void preempt_schedule(void)
 {
 	if (unlikely(preempt_get_count()))
 		return;
-	current->state = TASK_RUNNING;
+	if (current->state != TASK_RUNNING)
+		return;
 	schedule();
 }
 #endif /* CONFIG_PREEMPT */

mm/memory.c

@@ -48,6 +48,7 @@
 #include <asm/pgalloc.h>
 #include <asm/uaccess.h>
 #include <asm/tlb.h>
+#include <asm/tlbflush.h>
 
 unsigned long max_mapnr;
 unsigned long num_physpages;

mm/mmap.c

@@ -17,6 +17,7 @@
 
 #include <asm/uaccess.h>
 #include <asm/pgalloc.h>
+#include <asm/tlbflush.h>
 
 /*
  * WARNING: the debugging will use recursive algorithms so never enable this

mm/mprotect.c

@@ -9,11 +9,13 @@
 #include <linux/shm.h>
 #include <linux/mman.h>
 #include <linux/fs.h>
+#include <linux/highmem.h>
 
 #include <asm/uaccess.h>
 #include <asm/pgalloc.h>
 #include <asm/pgtable.h>
-#include <linux/highmem.h>
+#include <asm/cacheflush.h>
+#include <asm/tlbflush.h>
 
 static inline void change_pte_range(pmd_t * pmd, unsigned long address,
 	unsigned long size, pgprot_t newprot)

mm/mremap.c

@@ -11,9 +11,12 @@
 #include <linux/mman.h>
 #include <linux/swap.h>
 #include <linux/fs.h>
+#include <linux/highmem.h>
 
 #include <asm/uaccess.h>
 #include <asm/pgalloc.h>
+#include <asm/cacheflush.h>
+#include <asm/tlbflush.h>
 
 extern int vm_enough_memory(long pages);
 

mm/msync.c

@@ -14,6 +14,7 @@
 
 #include <asm/pgtable.h>
 #include <asm/pgalloc.h>
+#include <asm/tlbflush.h>
 
 /*
  * Called with mm->page_table_lock held to protect against other

mm/vmalloc.c

@@ -15,6 +15,7 @@
 
 #include <asm/uaccess.h>
 #include <asm/pgalloc.h>
+#include <asm/tlbflush.h>
 
 rwlock_t vmlist_lock = RW_LOCK_UNLOCKED;
 struct vm_struct * vmlist;

mm/vmscan.c

@@ -24,6 +24,7 @@
 #include <linux/compiler.h>
 
 #include <asm/pgalloc.h>
+#include <asm/tlbflush.h>
 
 /*
  * The "priority" of VM scanning is how much of the queues we

net/irda/af_irda.c

@@ -415,6 +415,7 @@ static void irda_getvalue_confirm(int result, __u16 obj_id,
  * hint bits), and then wake up any process waiting for answer...
  */
 static void irda_selective_discovery_indication(discovery_t *discovery,
+						DISCOVERY_MODE mode,
 						void *priv)
 {
 	struct irda_sock *self;
@@ -1286,6 +1287,9 @@ static int irda_sendmsg(struct socket *sock, struct msghdr *msg, int len,
 		/* Check if we are still connected */
 		if (sk->state != TCP_ESTABLISHED)
 			return -ENOTCONN;
+		/* Handle signals */
+		if (signal_pending(current)) 
+			return -ERESTARTSYS;
 	}
 
 	/* Check that we don't send out to big frames */

net/irda/ircomm/ircomm_tty.c

@@ -416,7 +416,7 @@ static int ircomm_tty_open(struct tty_struct *tty, struct file *filp)
 		self->line = line;
 		self->tqueue.routine = ircomm_tty_do_softint;
 		self->tqueue.data = self;
-		self->max_header_size = 5;
+		self->max_header_size = IRCOMM_TTY_HDR_UNITIALISED;
 		self->max_data_size = 64-self->max_header_size;
 		self->close_delay = 5*HZ/10;
 		self->closing_wait = 30*HZ;
@@ -695,6 +695,20 @@ static int ircomm_tty_write(struct tty_struct *tty, int from_user,
 	ASSERT(self != NULL, return -1;);
 	ASSERT(self->magic == IRCOMM_TTY_MAGIC, return -1;);
 
+	/* We may receive packets from the TTY even before we have finished
+	 * our setup. Not cool.
+	 * The problem is that we would allocate a skb with bogus header and
+	 * data size, and when adding data to it later we would get
+	 * confused.
+	 * Better to not accept data until we are properly setup. Use bogus
+	 * header size to check that (safest way to detect it).
+	 * Jean II */
+	if (self->max_header_size == IRCOMM_TTY_HDR_UNITIALISED) {
+		/* TTY will retry */
+		IRDA_DEBUG(2, __FUNCTION__ "() : not initialised\n");
+		return len;
+	}
+
 	save_flags(flags);
 	cli();
 
@@ -791,8 +805,12 @@ static int ircomm_tty_write_room(struct tty_struct *tty)
 	ASSERT(self != NULL, return -1;);
 	ASSERT(self->magic == IRCOMM_TTY_MAGIC, return -1;);
 
-	/* Check if we are allowed to transmit any data */
-	if (tty->hw_stopped)
+	/* Check if we are allowed to transmit any data.
+	 * hw_stopped is the regular flow control.
+	 * max_header_size tells us if the channel is initialised or not.
+	 * Jean II */
+	if ((tty->hw_stopped) ||
+	    (self->max_header_size == IRCOMM_TTY_HDR_UNITIALISED))
 		ret = 0;
 	else {
 		save_flags(flags);

net/irda/ircomm/ircomm_tty_attach.c

@@ -47,6 +47,7 @@
 
 static void ircomm_tty_ias_register(struct ircomm_tty_cb *self);
 static void ircomm_tty_discovery_indication(discovery_t *discovery,
+					    DISCOVERY_MODE mode,
 					    void *priv);
 static void ircomm_tty_getvalue_confirm(int result, __u16 obj_id, 
 					struct ias_value *value, void *priv);
@@ -305,6 +306,7 @@ int ircomm_tty_send_initial_parameters(struct ircomm_tty_cb *self)
  *
  */
 static void ircomm_tty_discovery_indication(discovery_t *discovery,
+					    DISCOVERY_MODE mode,
 					    void *priv)
 {
 	struct ircomm_tty_cb *self;
@@ -312,6 +314,20 @@ static void ircomm_tty_discovery_indication(discovery_t *discovery,
 
 	IRDA_DEBUG(2, __FUNCTION__"()\n");
 
+	/* Important note :
+	 * We need to drop all passive discoveries.
+	 * The LSAP management of IrComm is deficient and doesn't deal
+	 * with the case of two instance connecting to each other
+	 * simultaneously (it will deadlock in LMP).
+	 * The proper fix would be to use the same technique as in IrNET,
+	 * to have one server socket and separate instances for the
+	 * connecting/connected socket.
+	 * The workaround is to drop passive discovery, which drastically
+	 * reduce the probability of this happening.
+	 * Jean II */
+	if(mode == DISCOVERY_PASSIVE)
+		return;
+
 	info.daddr = discovery->daddr;
 	info.saddr = discovery->saddr;
 

net/irda/ircomm/ircomm_tty_ioctl.c

@@ -93,6 +93,9 @@ void ircomm_tty_change_speed(struct ircomm_tty_cb *self)
 	if (cflag & CRTSCTS) {
 		self->flags |= ASYNC_CTS_FLOW;
 		self->settings.flow_control |= IRCOMM_RTS_CTS_IN;
+		/* This got me. Bummer. Jean II */
+		if (self->service_type == IRCOMM_3_WIRE_RAW)
+			WARNING(__FUNCTION__ "(), enabling RTS/CTS on link that doesn't support it (3-wire-raw)\n");
 	} else {
 		self->flags &= ~ASYNC_CTS_FLOW;
 		self->settings.flow_control &= ~IRCOMM_RTS_CTS_IN;

net/irda/irlan/irlan_client.c

@@ -145,7 +145,9 @@ void irlan_client_wakeup(struct irlan_cb *self, __u32 saddr, __u32 daddr)
  *    Remote device with IrLAN server support discovered
  *
  */
-void irlan_client_discovery_indication(discovery_t *discovery, void *priv) 
+void irlan_client_discovery_indication(discovery_t *discovery,
+				       DISCOVERY_MODE mode,
+				       void *priv) 
 {
 	struct irlan_cb *self;
 	__u32 saddr, daddr;
@@ -155,6 +157,15 @@ void irlan_client_discovery_indication(discovery_t *discovery, void *priv)
 	ASSERT(irlan != NULL, return;);
 	ASSERT(discovery != NULL, return;);
 
+	/*
+	 * I didn't check it, but I bet that IrLAN suffer from the same
+	 * deficiency as IrComm and doesn't handle two instances
+	 * simultaneously connecting to each other.
+	 * Same workaround, drop passive discoveries.
+	 * Jean II */
+	if(mode == DISCOVERY_PASSIVE)
+		return;
+
 	saddr = discovery->saddr;
 	daddr = discovery->daddr;
 

net/irda/irlap_event.c

@@ -174,6 +174,12 @@ static void irlap_poll_timer_expired(void *data)
 	irlap_do_event(self, POLL_TIMER_EXPIRED, NULL, NULL);
 }
 
+/*
+ * Calculate and set time before we will have to send back the pf bit
+ * to the peer. Use in primary.
+ * Make sure that state is XMIT_P/XMIT_S when calling this function
+ * (and that nobody messed up with the state). - Jean II
+ */
 void irlap_start_poll_timer(struct irlap_cb *self, int timeout)
 {
 	ASSERT(self != NULL, return;);
@@ -1163,15 +1169,26 @@ static int irlap_state_nrm_p(struct irlap_cb *self, IRLAP_EVENT event,
 				self->ack_required = TRUE;
 			
 				irlap_wait_min_turn_around(self, &self->qos_tx);
-				/* 
-				 * Important to switch state before calling
-				 * upper layers
-				 */
-				irlap_next_state(self, LAP_XMIT_P);
 
+				/* Call higher layer *before* changing state
+				 * to give them a chance to send data in the
+				 * next LAP frame.
+				 * Jean II */
 				irlap_data_indication(self, skb, FALSE);
 
-				/* This is the last frame */
+				/* XMIT states are the most dangerous state
+				 * to be in, because user requests are
+				 * processed directly and may change state.
+				 * On the other hand, in NDM_P, those
+				 * requests are queued and we will process
+				 * them when we return to irlap_do_event().
+				 * Jean II
+				 */
+				irlap_next_state(self, LAP_XMIT_P);
+
+				/* This is the last frame.
+				 * Make sure it's always called in XMIT state.
+				 * - Jean II */
 				irlap_start_poll_timer(self, self->poll_timeout);
 			}
 			break;
@@ -1309,6 +1326,7 @@ static int irlap_state_nrm_p(struct irlap_cb *self, IRLAP_EVENT event,
 		} else {
 			del_timer(&self->final_timer);
 			irlap_data_indication(self, skb, TRUE);
+			irlap_next_state(self, LAP_XMIT_P);
 			printk(__FUNCTION__ "(): RECV_UI_FRAME: next state %s\n", irlap_state[self->state]);
 			irlap_start_poll_timer(self, self->poll_timeout);
 		}

net/irda/irlmp.c

@@ -732,7 +732,9 @@ void irlmp_do_expiry()
 	 * On links which are connected, we can't do discovery
 	 * anymore and can't refresh the log, so we freeze the
 	 * discovery log to keep info about the device we are
-	 * connected to. - Jean II
+	 * connected to.
+	 * This info is mandatory if we want irlmp_connect_request()
+	 * to work properly. - Jean II
 	 */
 	lap = (struct lap_cb *) hashbin_get_first(irlmp->links);
 	while (lap != NULL) {
@@ -804,7 +806,7 @@ void irlmp_do_discovery(int nslots)
 void irlmp_discovery_request(int nslots)
 {
 	/* Return current cached discovery log */
-	irlmp_discovery_confirm(irlmp->cachelog);
+	irlmp_discovery_confirm(irlmp->cachelog, DISCOVERY_LOG);
 
 	/* 
 	 * Start a single discovery operation if discovery is not already
@@ -907,7 +909,8 @@ void irlmp_check_services(discovery_t *discovery)
  * partial/selective discovery based on the hints that it passed to IrLMP.
  */
 static inline void
-irlmp_notify_client(irlmp_client_t *client, hashbin_t *log)
+irlmp_notify_client(irlmp_client_t *client,
+		    hashbin_t *log, DISCOVERY_MODE mode)
 {
 	discovery_t *discovery;
 
@@ -930,7 +933,7 @@ irlmp_notify_client(irlmp_client_t *client, hashbin_t *log)
 		 * bits ;-)
 		 */
 		if (client->hint_mask & discovery->hints.word & 0x7f7f)
-			client->disco_callback(discovery, client->priv);
+			client->disco_callback(discovery, mode, client->priv);
 
 		discovery = (discovery_t *) hashbin_get_next(log);
 	}
@@ -943,7 +946,7 @@ irlmp_notify_client(irlmp_client_t *client, hashbin_t *log)
  *    device it is, and give indication to the client(s)
  * 
  */
-void irlmp_discovery_confirm(hashbin_t *log) 
+void irlmp_discovery_confirm(hashbin_t *log, DISCOVERY_MODE mode) 
 {
 	irlmp_client_t *client;
 	
@@ -957,7 +960,7 @@ void irlmp_discovery_confirm(hashbin_t *log)
 	client = (irlmp_client_t *) hashbin_get_first(irlmp->clients);
 	while (client != NULL) {
 		/* Check if we should notify client */
-		irlmp_notify_client(client, log);
+		irlmp_notify_client(client, log, mode);
 			
 		client = (irlmp_client_t *) hashbin_get_next(irlmp->clients);
 	}
@@ -987,7 +990,8 @@ void irlmp_discovery_expiry(discovery_t *expiry)
 		/* Check if we should notify client */
 		if ((client->expir_callback) &&
 		    (client->hint_mask & expiry->hints.word & 0x7f7f))
-			client->expir_callback(expiry, client->priv);
+			client->expir_callback(expiry, EXPIRY_TIMEOUT,
+					       client->priv);
 
 		/* Next client */
 		client = (irlmp_client_t *) hashbin_get_next(irlmp->clients);

net/irda/irlmp_event.c

@@ -459,6 +459,15 @@ static void irlmp_state_active(struct lap_cb *self, IRLMP_EVENT event,
 					    LM_LAP_DISCONNECT_INDICATION,
 					    NULL);
 		}
+
+		/* Force an expiry of the discovery log.
+		 * Now that the LAP is free, the system may attempt to
+		 * connect to another device. Unfortunately, our entries
+		 * are stale. There is a small window (<3s) before the
+		 * normal discovery will run and where irlmp_connect_request()
+		 * can get the wrong info, so make sure things get
+		 * cleaned *NOW* ;-) - Jean II */
+		irlmp_do_expiry();
 		break;
 	default:
 		IRDA_DEBUG(0, __FUNCTION__ "(), Unknown event %s\n",

net/irda/irlmp_frame.c

@@ -378,7 +378,7 @@ void irlmp_link_discovery_indication(struct lap_cb *self,
 	
 	/* Just handle it the same way as a discovery confirm,
 	 * bypass the LM_LAP state machine (see below) */
-	irlmp_discovery_confirm(irlmp->cachelog);
+	irlmp_discovery_confirm(irlmp->cachelog, DISCOVERY_PASSIVE);
 }
 
 /*
@@ -404,7 +404,7 @@ void irlmp_link_discovery_confirm(struct lap_cb *self, hashbin_t *log)
 	 *	2) It doesn't affect the LM_LAP state
 	 *	3) Faster, slimer, simpler, ...
 	 * Jean II */
-	irlmp_discovery_confirm(irlmp->cachelog);
+	irlmp_discovery_confirm(irlmp->cachelog, DISCOVERY_ACTIVE);
 }
 
 #ifdef CONFIG_IRDA_CACHE_LAST_LSAP

net/irda/irnet/irnet.h

@@ -211,6 +211,12 @@
  *	o When receiving a disconnect indication, don't reenable the
  *	  PPP Tx queue, this will trigger a reconnect. Instead, close
  *	  the channel, which will kill pppd...
+ *
+ * v11 - 20.3.02 - Jean II
+ *	o Oops ! v10 fix disabled IrNET retries and passive behaviour.
+ *	  Better fix in irnet_disconnect_indication() :
+ *	  - if connected, kill pppd via hangup.
+ *	  - if not connected, reenable ppp Tx, which trigger IrNET retry.
  */
 
 /***************************** INCLUDES *****************************/

net/irda/irnet/irnet_irda.c

@@ -1070,7 +1070,7 @@ irnet_data_indication(void *	instance,
  *	o attempted to connect, timeout
  *	o connected, link is broken, LAP has timeout
  *	o connected, other side close the link
- *	o connection request on the server no handled
+ *	o connection request on the server not handled
  */
 static void
 irnet_disconnect_indication(void *	instance,
@@ -1121,20 +1121,31 @@ irnet_disconnect_indication(void *	instance,
       DEBUG(IRDA_CB_INFO, "Closing our TTP connection.\n");
       irttp_close_tsap(self->tsap);
       self->tsap = NULL;
-
-      /* Cleanup & close the PPP channel, which will kill pppd and the rest */
-      if(self->ppp_open)
-	ppp_unregister_channel(&self->chan);
-      self->ppp_open = 0;
     }
-  /* Cleanup the socket in case we want to reconnect */
+  /* Cleanup the socket in case we want to reconnect in ppp_output_wakeup() */
   self->stsap_sel = 0;
   self->daddr = DEV_ADDR_ANY;
   self->tx_flow = FLOW_START;
 
-  /* Note : what should we say to ppp ?
-   * It seem the ppp_generic and pppd are happy that way and will eventually
-   * timeout gracefully, so don't bother them... */
+  /* Deal with the ppp instance if it's still alive */
+  if(self->ppp_open)
+    {
+      if(test_open)
+	{
+	  /* If we were connected, cleanup & close the PPP channel,
+	   * which will kill pppd (hangup) and the rest */
+	  ppp_unregister_channel(&self->chan);
+	  self->ppp_open = 0;
+	}
+      else
+	{
+	  /* If we were trying to connect, flush (drain) ppp_generic
+	   * Tx queue (most often we have blocked it), which will
+	   * trigger an other attempt to connect. If we are passive,
+	   * this will empty the Tx queue after last try. */
+	  ppp_output_wakeup(&self->chan);
+	}
+    }
 
   DEXIT(IRDA_TCB_TRACE, "\n");
 }
@@ -1588,7 +1599,8 @@ irnet_discovervalue_confirm(int		result,
  * is to messy, so we leave that to user space...
  */
 static void
-irnet_discovery_indication(discovery_t *discovery,
+irnet_discovery_indication(discovery_t *	discovery,
+			   DISCOVERY_MODE	mode,
 			   void *		priv)
 {
   irnet_socket *	self = &irnet_server.s;
@@ -1627,6 +1639,7 @@ irnet_discovery_indication(discovery_t *discovery,
  */
 static void
 irnet_expiry_indication(discovery_t *	expiry,
+			DISCOVERY_MODE	mode,
 			void *		priv)
 {
   irnet_socket *	self = &irnet_server.s;

net/irda/irnet/irnet_irda.h

@@ -151,9 +151,11 @@ static void
 #ifdef DISCOVERY_EVENTS
 static void
 	irnet_discovery_indication(discovery_t *,
+				   DISCOVERY_MODE,
 				   void *);
 static void
 	irnet_expiry_indication(discovery_t *,
+				DISCOVERY_MODE,
 				void *);
 #endif
 /* -------------------------- PROC ENTRY -------------------------- */

net/irda/irsysctl.c

@@ -34,17 +34,19 @@
 #define NET_IRDA 412 /* Random number */
 enum { DISCOVERY=1, DEVNAME, DEBUG, FAST_POLL, DISCOVERY_SLOTS,
        DISCOVERY_TIMEOUT, SLOT_TIMEOUT, MAX_BAUD_RATE, MIN_TX_TURN_TIME,
-       MAX_NOREPLY_TIME, WARN_NOREPLY_TIME, LAP_KEEPALIVE_TIME };
+       MAX_TX_DATA_SIZE, MAX_NOREPLY_TIME, WARN_NOREPLY_TIME,
+       LAP_KEEPALIVE_TIME };
 
 extern int  sysctl_discovery;
 extern int  sysctl_discovery_slots;
 extern int  sysctl_discovery_timeout;
-extern int  sysctl_slot_timeout;	/* Candidate */
+extern int  sysctl_slot_timeout;
 extern int  sysctl_fast_poll_increase;
 int         sysctl_compression = 0;
 extern char sysctl_devname[];
 extern int  sysctl_max_baud_rate;
 extern int  sysctl_min_tx_turn_time;
+extern int  sysctl_max_tx_data_size;
 extern int  sysctl_max_noreply_time;
 extern int  sysctl_warn_noreply_time;
 extern int  sysctl_lap_keepalive_time;
@@ -64,6 +66,8 @@ static int max_max_baud_rate = 16000000;	/* See qos.c - IrLAP spec */
 static int min_max_baud_rate = 2400;
 static int max_min_tx_turn_time = 10000;	/* See qos.c - IrLAP spec */
 static int min_min_tx_turn_time = 0;
+static int max_max_tx_data_size = 2048;		/* See qos.c - IrLAP spec */
+static int min_max_tx_data_size = 64;
 static int max_max_noreply_time = 40;		/* See qos.c - IrLAP spec */
 static int min_max_noreply_time = 3;
 static int max_warn_noreply_time = 3;		/* 3s == standard */
@@ -117,6 +121,9 @@ static ctl_table irda_table[] = {
 	{ MIN_TX_TURN_TIME, "min_tx_turn_time", &sysctl_min_tx_turn_time,
 	  sizeof(int), 0644, NULL, &proc_dointvec_minmax, &sysctl_intvec,
 	  NULL, &min_min_tx_turn_time, &max_min_tx_turn_time },
+	{ MAX_TX_DATA_SIZE, "max_tx_data_size", &sysctl_max_tx_data_size,
+	  sizeof(int), 0644, NULL, &proc_dointvec_minmax, &sysctl_intvec,
+	  NULL, &min_max_tx_data_size, &max_max_tx_data_size },
 	{ MAX_NOREPLY_TIME, "max_noreply_time", &sysctl_max_noreply_time,
 	  sizeof(int), 0644, NULL, &proc_dointvec_minmax, &sysctl_intvec,
 	  NULL, &min_max_noreply_time, &max_max_noreply_time },

net/irda/qos.c

@@ -57,10 +57,26 @@ int sysctl_max_noreply_time = 12;
  * Nonzero values (usec) are used as lower limit to the per-connection
  * mtt value which was announced by the other end during negotiation.
  * Might be helpful if the peer device provides too short mtt.
- * Default is 10 which means using the unmodified value given by the peer
- * except if it's 0 (0 is likely a bug in the other stack).
+ * Default is 10us which means using the unmodified value given by the
+ * peer except if it's 0 (0 is likely a bug in the other stack).
  */
 unsigned sysctl_min_tx_turn_time = 10;
+/*
+ * Maximum data size to be used in transmission in payload of LAP frame.
+ * There is a bit of confusion in the IrDA spec :
+ * The LAP spec defines the payload of a LAP frame (I field) to be
+ * 2048 bytes max (IrLAP 1.1, chapt 6.6.5, p40).
+ * On the other hand, the PHY mention frames of 2048 bytes max (IrPHY
+ * 1.2, chapt 5.3.2.1, p41). But, this number includes the LAP header
+ * (2 bytes), and CRC (32 bits at 4 Mb/s). So, for the I field (LAP
+ * payload), that's only 2042 bytes. Oups !
+ * I've had trouble trouble transmitting 2048 bytes frames with USB
+ * dongles and nsc-ircc at 4 Mb/s, so adjust to 2042... I don't know
+ * if this bug applies only for 2048 bytes frames or all negociated
+ * frame sizes, but all hardware seem to support "2048 bytes" frames.
+ * You can use the sysctl to play with this value anyway.
+ * Jean II */
+unsigned sysctl_max_tx_data_size = 2042;
 
 static int irlap_param_baud_rate(void *instance, irda_param_t *param, int get);
 static int irlap_param_link_disconnect(void *instance, irda_param_t *parm, 
@@ -355,10 +371,10 @@ void irlap_adjust_qos_settings(struct qos_info *qos)
 	while ((qos->data_size.value > line_capacity) && (index > 0)) {
 		qos->data_size.value = data_sizes[index--];
 		IRDA_DEBUG(2, __FUNCTION__ 
-			   "(), redusing data size to %d\n",
+			   "(), reducing data size to %d\n",
 			   qos->data_size.value);
 	}
-#else /* Use method descibed in section 6.6.11 of IrLAP */
+#else /* Use method described in section 6.6.11 of IrLAP */
 	while (irlap_requested_line_capacity(qos) > line_capacity) {
 		ASSERT(index != 0, return;);
 
@@ -366,18 +382,24 @@ void irlap_adjust_qos_settings(struct qos_info *qos)
 		if (qos->window_size.value > 1) {
 			qos->window_size.value--;
 			IRDA_DEBUG(2, __FUNCTION__ 
-				   "(), redusing window size to %d\n",
+				   "(), reducing window size to %d\n",
 				   qos->window_size.value);
 		} else if (index > 1) {
 			qos->data_size.value = data_sizes[index--];
 			IRDA_DEBUG(2, __FUNCTION__ 
-				   "(), redusing data size to %d\n",
+				   "(), reducing data size to %d\n",
 				   qos->data_size.value);
 		} else {
 			WARNING(__FUNCTION__ "(), nothing more we can do!\n");
 		}
 	}
 #endif /* CONFIG_IRDA_DYNAMIC_WINDOW */
+	/*
+	 * Fix tx data size according to user limits - Jean II
+	 */
+	if (qos->data_size.value > sysctl_max_tx_data_size)
+		/* Allow non discrete adjustement to avoid loosing capacity */
+		qos->data_size.value = sysctl_max_tx_data_size;
 }
 
 /*