LU-73 RHEL6 support.

[fs/lustre-release.git] / ldiskfs / kernel_patches / patches / ext4-prealloc-rhel6.patch

diff --git a/ldiskfs/kernel_patches/patches/ext4-prealloc-rhel6.patch b/ldiskfs/kernel_patches/patches/ext4-prealloc-rhel6.patch
index dd3252d..70023d6 100644 (file)
--- a/ldiskfs/kernel_patches/patches/ext4-prealloc-rhel6.patch
+++ b/ldiskfs/kernel_patches/patches/ext4-prealloc-rhel6.patch
@@ -18,6 +18,20 @@ Index: linux-stage/fs/ext4/ext4.h
        unsigned int s_mb_group_prealloc;
        unsigned int s_max_writeback_mb_bump;
        /* where last allocation was done - for stream allocation */
+Index: linux-stage/fs/ext4/inode.c
+===================================================================
+@@ -3028,6 +3028,11 @@ static int ext4_da_writepages(struct add
+       if (unlikely(sbi->s_mount_flags & EXT4_MF_FS_ABORTED))
+               return -EROFS;
+ 
++      if (wbc->nr_to_write < sbi->s_mb_small_req) {
++              nr_to_writebump = sbi->s_mb_small_req - wbc->nr_to_write;
++              wbc->nr_to_write = sbi->s_mb_small_req;
++      }
++
+       if (wbc->range_start == 0 && wbc->range_end == LLONG_MAX)
+               range_whole = 1;
+
 Index: linux-stage/fs/ext4/mballoc.c
 ===================================================================
 --- linux-stage.orig/fs/ext4/mballoc.c 2011-03-11 14:03:32.000000000 +0800