LU-12561 kernel: Remove unused patches

[fs/lustre-release.git] / lustre / kernel_patches / patches / dev_read_only-2.6.32-sles11.patch

diff --git a/lustre/kernel_patches/patches/dev_read_only-2.6.32-sles11.patch b/lustre/kernel_patches/patches/dev_read_only-2.6.32-sles11.patch
deleted file mode 100644 (file)
index db8fe02..0000000
--- a/lustre/kernel_patches/patches/dev_read_only-2.6.32-sles11.patch
+++ /dev/null
@@ -1,150 +0,0 @@
-diff -ur linux-2.6.32.46-0.orig//block/blk-core.c linux-2.6.32.46-0/block/blk-core.c
---- linux-2.6.32.46-0.orig//block/blk-core.c   2013-04-26 10:23:22.000000000 -0400
-+++ linux-2.6.32.46-0/block/blk-core.c 2013-04-26 10:25:46.000000000 -0400
-@@ -1350,6 +1350,8 @@
- 
- #endif /* CONFIG_FAIL_MAKE_REQUEST */
- 
-+int dev_check_rdonly(struct block_device *bdev);
-+
- /*
-  * Check whether this bio extends beyond the end of the device.
-  */
-@@ -1451,6 +1453,12 @@
-               if (unlikely(test_bit(QUEUE_FLAG_DEAD, &q->queue_flags)))
-                       goto end_io;
- 
-+              /* this is cfs's dev_rdonly check */
-+              if (bio_rw(bio) == WRITE && dev_check_rdonly(bio->bi_bdev)) {
-+                      err = 0;
-+                      goto end_io;
-+              }
-+
-               if (should_fail_request(bio))
-                       goto end_io;
- 
-@@ -2494,6 +2502,99 @@
- }
- EXPORT_SYMBOL(kblockd_schedule_work);
- 
-+ /*
-+ * 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);
- int __init blk_dev_init(void)
- {
-       BUILD_BUG_ON(__REQ_NR_BITS > 8 *
-diff -ur linux-2.6.32.46-0.orig//fs/block_dev.c linux-2.6.32.46-0/fs/block_dev.c
---- linux-2.6.32.46-0.orig//fs/block_dev.c     2013-04-26 10:23:31.000000000 -0400
-+++ linux-2.6.32.46-0/fs/block_dev.c   2013-04-26 10:25:46.000000000 -0400
-@@ -1374,6 +1374,7 @@
-               if (bdev != bdev->bd_contains)
-                       victim = bdev->bd_contains;
-               bdev->bd_contains = NULL;
-+              dev_clear_rdonly(bdev);
-       }
-       unlock_kernel();
-       mutex_unlock(&bdev->bd_mutex);
-diff -ur linux-2.6.32.46-0.orig//include/linux/fs.h linux-2.6.32.46-0/include/linux/fs.h
---- linux-2.6.32.46-0.orig//include/linux/fs.h 2013-04-26 10:23:39.000000000 -0400
-+++ linux-2.6.32.46-0/include/linux/fs.h       2013-04-26 10:25:46.000000000 -0400
-@@ -2237,6 +2237,10 @@
- extern void submit_bio(int, struct bio *);
- extern int bdev_read_only(struct block_device *);
- #endif
-+#define HAVE_CLEAR_RDONLY_ON_PUT
-+extern void dev_set_rdonly(struct block_device *bdev);
-+extern int dev_check_rdonly(struct block_device *bdev);
-+extern 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);