Added a hp-pnnl-2.4.20 series to the kernel patchs and fixed up the patch

files to work correctly.

diff --git a/lustre/kernel_patches/patches/dev_read_only_hp_2.4.20.patch b/lustre/kernel_patches/patches/dev_read_only_hp_2.4.20.patch
new file mode 100644 (file)
index 0000000..e010402
--- /dev/null
+++ b/lustre/kernel_patches/patches/dev_read_only_hp_2.4.20.patch
@@ -0,0 +1,69 @@
+diff -u -r kernel-2.4.20/drivers/block/blkpg.c kernel-2.4.20-l15/drivers/block/blkpg.c
+--- kernel-2.4.20/drivers/block/blkpg.c        Fri Aug  2 17:39:43 2002
++++ kernel-2.4.20-l15drivers/block/blkpg.c     Tue Apr  8 19:40:22 2003
+@@ -296,3 +296,38 @@
+ }
+ 
+ EXPORT_SYMBOL(blk_ioctl);
++
++#define NUM_DEV_NO_WRITE 16
++static int dev_no_write[NUM_DEV_NO_WRITE];
++
++/*
++ * Debug code for turning block devices "read-only" (will discard writes
++ * silently).  This is for filesystem crash/recovery testing.
++ */
++void dev_set_rdonly(kdev_t dev, int no_write)
++{
++      if (dev) {
++              printk(KERN_WARNING "Turning device %s read-only\n",
++                     bdevname(dev));
++              dev_no_write[no_write] = 0xdead0000 + dev;
++      }
++}
++
++int dev_check_rdonly(kdev_t dev) {
++      int i;
++
++      for (i = 0; i < NUM_DEV_NO_WRITE; i++) {
++              if ((dev_no_write[i] & 0xffff0000) == 0xdead0000 &&
++                  dev == (dev_no_write[i] & 0xffff))
++                      return 1;
++      }
++      return 0;
++}
++
++void dev_clear_rdonly(int no_write) {
++      dev_no_write[no_write] = 0;
++}
++
++EXPORT_SYMBOL(dev_set_rdonly);
++EXPORT_SYMBOL(dev_check_rdonly);
++EXPORT_SYMBOL(dev_clear_rdonly);
+diff -u -r kernel-2.4.20/drivers/block/loop.c kernel-2.4.20-l15/drivers/block/loop.c
+--- kernel-2.4.20/drivers/block/loop.c Thu Nov 28 15:53:12 2002
++++ kernel-2.4.20-l15/drivers/block/loop.c     Tue Apr  8 19:40:22 2003
+@@ -474,6 +474,9 @@
+       spin_unlock_irq(&lo->lo_lock);
+ 
+       if (rw == WRITE) {
++              if (dev_check_rdonly(rbh->b_rdev))
++                      goto err;
++
+               if (lo->lo_flags & LO_FLAGS_READ_ONLY)
+                       goto err;
+       } else if (rw == READA) {
+diff -u -r kernel-2.4.20/drivers/ide/ide-disk.c kernel-2.4.20-l15/drivers/ide/ide-disk.c
+--- kernel-2.4.20/drivers/ide/ide-disk.c       Thu Nov 28 15:53:13 2002
++++ kernel-2.4.20-l15/drivers/ide/ide-disk.c   Tue Apr  8 19:42:09 2003
+@@ -558,6 +558,10 @@
+  */
+ static ide_startstop_t do_rw_disk (ide_drive_t *drive, struct request *rq, unsigned long block)
+ {
++      if (rq->cmd == WRITE && dev_check_rdonly(rq->rq_dev)) {
++              ide_end_request(1, HWGROUP(drive));
++              return ide_stopped;
++      } 
+       if (IDE_CONTROL_REG)
+               OUT_BYTE(drive->ctl,IDE_CONTROL_REG);
+ 

diff --git a/lustre/kernel_patches/pc/dev_read_only_hp_2.4.20.pc b/lustre/kernel_patches/pc/dev_read_only_hp_2.4.20.pc
new file mode 100644 (file)
index 0000000..4760ad1
--- /dev/null
+++ b/lustre/kernel_patches/pc/dev_read_only_hp_2.4.20.pc
@@ -0,0 +1,3 @@
+drivers/block/blkpg.c
+drivers/block/loop.c
+drivers/ide/ide-disk.c