LU-1812 ldiskfs: Add kernel patch series for SLES11SP2

[fs/lustre-release.git] / ldiskfs / kernel_patches / patches / sles11sp2 / ext4-ext_generation.patch

diff --git a/ldiskfs/kernel_patches/patches/sles11sp2/ext4-ext_generation.patch b/ldiskfs/kernel_patches/patches/sles11sp2/ext4-ext_generation.patch
new file mode 100644 (file)
index 0000000..10fc3c7
--- /dev/null
+++ b/ldiskfs/kernel_patches/patches/sles11sp2/ext4-ext_generation.patch
@@ -0,0 +1,48 @@
+---
+ fs/ext4/ext4.h         |    1 +
+ fs/ext4/ext4_extents.h |    5 +++++
+ fs/ext4/extents.c      |    2 ++
+ 3 files changed, 8 insertions(+)
+
+--- a/fs/ext4/ext4.h
++++ b/fs/ext4/ext4.h
+@@ -821,6 +821,7 @@ struct ext4_inode_info {
+       struct inode vfs_inode;
+       struct jbd2_inode *jinode;
+ 
++      unsigned long i_ext_generation;
+       struct ext4_ext_cache i_cached_extent;
+       /*
+        * File creation time. Its function is same as that of
+--- a/fs/ext4/ext4_extents.h
++++ b/fs/ext4/ext4_extents.h
+@@ -193,6 +193,11 @@ static inline unsigned short ext_depth(s
+       return le16_to_cpu(ext_inode_hdr(inode)->eh_depth);
+ }
+ 
++static inline void ext4_ext_tree_changed(struct inode *inode)
++{
++      EXT4_I(inode)->i_ext_generation++;
++}
++
+ static inline void
+ ext4_ext_invalidate_cache(struct inode *inode)
+ {
+--- a/fs/ext4/extents.c
++++ b/fs/ext4/extents.c
+@@ -1874,6 +1874,7 @@ cleanup:
+               ext4_ext_drop_refs(npath);
+               kfree(npath);
+       }
++      ext4_ext_tree_changed(inode);
+       ext4_ext_invalidate_cache(inode);
+       return err;
+ }
+@@ -2681,6 +2682,7 @@ again:
+               }
+       }
+ out:
++      ext4_ext_tree_changed(inode);
+       ext4_ext_drop_refs(path);
+       kfree(path);
+       if (err == -EAGAIN)