Merge branch 'hwpoison' of git://git.kernel.org/pub/scm/linux/kernel/git/ak/linux-mce-2.6

* 'hwpoison' of git://git.kernel.org/pub/scm/linux/kernel/git/ak/linux-mce-2.6: (21 commits)
  HWPOISON: Enable error_remove_page on btrfs
  HWPOISON: Add simple debugfs interface to inject hwpoison on arbitary PFNs
  HWPOISON: Add madvise() based injector for hardware poisoned pages v4
  HWPOISON: Enable error_remove_page for NFS
  HWPOISON: Enable .remove_error_page for migration aware file systems
  HWPOISON: The high level memory error handler in the VM v7
  HWPOISON: Add PR_MCE_KILL prctl to control early kill behaviour per process
  HWPOISON: shmem: call set_page_dirty() with locked page
  HWPOISON: Define a new error_remove_page address space op for async truncation
  HWPOISON: Add invalidate_inode_page
  HWPOISON: Refactor truncate to allow direct truncating of page v2
  HWPOISON: check and isolate corrupted free pages v2
  HWPOISON: Handle hardware poisoned pages in try_to_unmap
  HWPOISON: Use bitmask/action code for try_to_unmap behaviour
  HWPOISON: x86: Add VM_FAULT_HWPOISON handling to x86 page fault handler v2
  HWPOISON: Add poison check to page fault handling
  HWPOISON: Add basic support for poisoned pages in fault handler v3
  HWPOISON: Add new SIGBUS error codes for hardware poison signals
  HWPOISON: Add support for poison swap entries v2
  HWPOISON: Export some rmap vma locking to outside world
  ...

1 files changed, 3 insertions, 2 deletions

diff --git a/mm/shmem.c b/mm/shmem.c
index b206a7a32e2a..98631c26c200 100644
--- a/mm/shmem.c
+++ b/mm/shmem.c
@@ -1633,8 +1633,8 @@ shmem_write_end(struct file *file, struct address_space *mapping,
         if (pos + copied > inode->i_size)
                 i_size_write(inode, pos + copied);
 
-        unlock_page(page);
         set_page_dirty(page);
+        unlock_page(page);
         page_cache_release(page);
 
         return copied;
@@ -1971,13 +1971,13 @@ static int shmem_symlink(struct inode *dir, struct dentry *dentry, const char *s
                         iput(inode);
                         return error;
                 }
-                unlock_page(page);
                 inode->i_mapping->a_ops = &shmem_aops;
                 inode->i_op = &shmem_symlink_inode_operations;
                 kaddr = kmap_atomic(page, KM_USER0);
                 memcpy(kaddr, symname, len);
                 kunmap_atomic(kaddr, KM_USER0);
                 set_page_dirty(page);
+                unlock_page(page);
                 page_cache_release(page);
         }
         if (dir->i_mode & S_ISGID)
@@ -2420,6 +2420,7 @@ static const struct address_space_operations shmem_aops = {
         .write_end      = shmem_write_end,
 #endif
         .migratepage    = migrate_page,
+        .error_remove_page = generic_error_remove_page,
 };
 
 static const struct file_operations shmem_file_operations = {