b=22456 Remove files for unsupported kernels

[fs/lustre-release.git] / lustre / kernel_patches / patches / dev_read_only-2.6-suse.patch

diff --git a/lustre/kernel_patches/patches/dev_read_only-2.6-suse.patch b/lustre/kernel_patches/patches/dev_read_only-2.6-suse.patch
deleted file mode 100644 (file)
index a93ffa5..0000000
--- a/lustre/kernel_patches/patches/dev_read_only-2.6-suse.patch
+++ /dev/null
@@ -1,147 +0,0 @@
-Index: linux-2.6.9/drivers/block/ll_rw_blk.c
-===================================================================
---- linux-2.6.9.orig/drivers/block/ll_rw_blk.c
-+++ linux-2.6.9/drivers/block/ll_rw_blk.c
-@@ -2331,6 +2331,8 @@ static inline int attempt_front_merge(re
-       return 0;
- }
- 
-+int dev_check_rdonly(struct block_device *bdev);
-+
- /**
-  * blk_attempt_remerge  - attempt to remerge active head with next request
-  * @q:    The &request_queue_t belonging to the device
-@@ -2636,6 +2638,13 @@ end_io:
-               if (test_bit(QUEUE_FLAG_DEAD, &q->queue_flags))
-                       goto end_io;
- 
-+              /* this is cfs's dev_rdonly check */
-+              if (bio->bi_rw == WRITE &&
-+                              dev_check_rdonly(bio->bi_bdev)) {
-+                      bio_endio(bio, bio->bi_size, 0);
-+                      break;
-+              }
-+
-               /*
-                * If this device has partitions, remap block n
-                * of partition p to block n+start(p) of the disk.
-@@ -3185,6 +3194,92 @@ void swap_io_context(struct io_context *
- 
- 
- /*
-+ * Debug code for turning block devices "read-only" (will discard writes
-+ * silently).  This is for filesystem crash/recovery testing.
-+ */
-+struct deventry {
-+      dev_t dev;
-+      struct deventry *next;
-+};
-+
-+static struct deventry *devlist = NULL;
-+static spinlock_t devlock = SPIN_LOCK_UNLOCKED; 
-+
-+int dev_check_rdonly(struct block_device *bdev) 
-+{
-+      struct deventry *cur;
-+      if (!bdev) return 0;
-+      spin_lock(&devlock);
-+      cur = devlist;
-+      while(cur) {
-+              if (bdev->bd_dev == cur->dev) {
-+                      spin_unlock(&devlock);
-+                      return 1;
-+      }
-+              cur = cur->next;
-+      }
-+      spin_unlock(&devlock);
-+      return 0;
-+}
-+
-+void dev_set_rdonly(struct block_device *bdev)
-+{
-+      struct deventry *newdev, *cur;
-+
-+      if (!bdev) 
-+              return;
-+      newdev = kmalloc(sizeof(struct deventry), GFP_KERNEL);
-+      if (!newdev) 
-+              return;
-+      
-+      spin_lock(&devlock);
-+      cur = devlist;
-+      while(cur) {
-+              if (bdev->bd_dev == cur->dev) {
-+                      spin_unlock(&devlock);
-+                      kfree(newdev);
-+                      return;
-+              }
-+              cur = cur->next;
-+      }
-+      newdev->dev = bdev->bd_dev;
-+      newdev->next = devlist;
-+      devlist = newdev;
-+      spin_unlock(&devlock);
-+      printk(KERN_WARNING "Turning device %s (%#x) read-only\n",
-+             bdev->bd_disk ? bdev->bd_disk->disk_name : "", bdev->bd_dev);
-+}
-+
-+void dev_clear_rdonly(struct block_device *bdev) 
-+{
-+      struct deventry *cur, *last = NULL;
-+      if (!bdev) return;
-+      spin_lock(&devlock);
-+      cur = devlist;
-+      while(cur) {
-+              if (bdev->bd_dev == cur->dev) {
-+                      if (last) 
-+                              last->next = cur->next;
-+                      else
-+                              devlist = cur->next;
-+                      spin_unlock(&devlock);
-+                      kfree(cur);
-+                      printk(KERN_WARNING "Removing read-only on %s (%#x)\n",
-+                             bdev->bd_disk ? bdev->bd_disk->disk_name :
-+                                             "unknown block", bdev->bd_dev);
-+                      return;
-+              }
-+              last = cur;
-+              cur = cur->next;
-+      }
-+      spin_unlock(&devlock);
-+}
-+
-+EXPORT_SYMBOL(dev_set_rdonly);
-+EXPORT_SYMBOL(dev_clear_rdonly);
-+EXPORT_SYMBOL(dev_check_rdonly);
-+
-+/*
-  * sysfs parts below
-  */
- struct queue_sysfs_entry {
-Index: linux-2.6.9/fs/block_dev.c
-===================================================================
---- linux-2.6.9.orig/fs/block_dev.c
-+++ linux-2.6.9/fs/block_dev.c
-@@ -744,6 +744,7 @@ int blkdev_put(struct block_device *bdev
-                       blkdev_put(bdev->bd_contains);
-               }
-               bdev->bd_contains = NULL;
-+              dev_clear_rdonly(bdev);
-       }
-       unlock_kernel();
-       up(&bdev->bd_sem);
-Index: linux-2.6.9/include/linux/fs.h
-===================================================================
---- linux-2.6.9.orig/include/linux/fs.h
-+++ linux-2.6.9/include/linux/fs.h
-@@ -1479,6 +1479,10 @@ extern void file_kill(struct file *f);
- struct bio;
- extern void submit_bio(int, struct bio *);
- extern int bdev_read_only(struct block_device *);
-+#define HAVE_CLEAR_RDONLY_ON_PUT
-+void dev_set_rdonly(struct block_device *bdev);
-+int dev_check_rdonly(struct block_device *bdev);
-+void dev_clear_rdonly(struct block_device *bdev);
- extern int set_blocksize(struct block_device *, int);
- extern int sb_set_blocksize(struct super_block *, int);
- extern int sb_min_blocksize(struct super_block *, int);