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
  ...

10 files changed, 26 insertions, 1 deletions

diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index 9096fd0ca3ca..d154a3f365d5 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -5269,6 +5269,7 @@ static const struct address_space_operations btrfs_aops = {
         .invalidatepage = btrfs_invalidatepage,
         .releasepage    = btrfs_releasepage,
         .set_page_dirty = btrfs_set_page_dirty,
+        .error_remove_page = generic_error_remove_page,
 };
 
 static const struct address_space_operations btrfs_symlink_aops = {
diff --git a/fs/ext2/inode.c b/fs/ext2/inode.c
index 1c1638f873a4..ade634076d0a 100644
--- a/fs/ext2/inode.c
+++ b/fs/ext2/inode.c
@@ -819,6 +819,7 @@ const struct address_space_operations ext2_aops = {
         .writepages             = ext2_writepages,
         .migratepage            = buffer_migrate_page,
         .is_partially_uptodate  = block_is_partially_uptodate,
+        .error_remove_page      = generic_error_remove_page,
 };
 
 const struct address_space_operations ext2_aops_xip = {
@@ -837,6 +838,7 @@ const struct address_space_operations ext2_nobh_aops = {
         .direct_IO              = ext2_direct_IO,
         .writepages             = ext2_writepages,
         .migratepage            = buffer_migrate_page,
+        .error_remove_page      = generic_error_remove_page,
 };
 
 /*
diff --git a/fs/ext3/inode.c b/fs/ext3/inode.c
index cd098a7b77fc..acf1b1423327 100644
--- a/fs/ext3/inode.c
+++ b/fs/ext3/inode.c
@@ -1830,6 +1830,7 @@ static const struct address_space_operations ext3_ordered_aops = {
         .direct_IO              = ext3_direct_IO,
         .migratepage            = buffer_migrate_page,
         .is_partially_uptodate  = block_is_partially_uptodate,
+        .error_remove_page      = generic_error_remove_page,
 };
 
 static const struct address_space_operations ext3_writeback_aops = {
@@ -1845,6 +1846,7 @@ static const struct address_space_operations ext3_writeback_aops = {
         .direct_IO              = ext3_direct_IO,
         .migratepage            = buffer_migrate_page,
         .is_partially_uptodate  = block_is_partially_uptodate,
+        .error_remove_page      = generic_error_remove_page,
 };
 
 static const struct address_space_operations ext3_journalled_aops = {
@@ -1859,6 +1861,7 @@ static const struct address_space_operations ext3_journalled_aops = {
         .invalidatepage         = ext3_invalidatepage,
         .releasepage            = ext3_releasepage,
         .is_partially_uptodate  = block_is_partially_uptodate,
+        .error_remove_page      = generic_error_remove_page,
 };
 
 void ext3_set_aops(struct inode *inode)
diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c
index 3a798737e305..064746fad581 100644
--- a/fs/ext4/inode.c
+++ b/fs/ext4/inode.c
@@ -3386,6 +3386,7 @@ static const struct address_space_operations ext4_ordered_aops = {
         .direct_IO              = ext4_direct_IO,
         .migratepage            = buffer_migrate_page,
         .is_partially_uptodate  = block_is_partially_uptodate,
+        .error_remove_page      = generic_error_remove_page,
 };
 
 static const struct address_space_operations ext4_writeback_aops = {
@@ -3401,6 +3402,7 @@ static const struct address_space_operations ext4_writeback_aops = {
         .direct_IO              = ext4_direct_IO,
         .migratepage            = buffer_migrate_page,
         .is_partially_uptodate  = block_is_partially_uptodate,
+        .error_remove_page      = generic_error_remove_page,
 };
 
 static const struct address_space_operations ext4_journalled_aops = {
@@ -3415,6 +3417,7 @@ static const struct address_space_operations ext4_journalled_aops = {
         .invalidatepage         = ext4_invalidatepage,
         .releasepage            = ext4_releasepage,
         .is_partially_uptodate  = block_is_partially_uptodate,
+        .error_remove_page      = generic_error_remove_page,
 };
 
 static const struct address_space_operations ext4_da_aops = {
@@ -3431,6 +3434,7 @@ static const struct address_space_operations ext4_da_aops = {
         .direct_IO              = ext4_direct_IO,
         .migratepage            = buffer_migrate_page,
         .is_partially_uptodate  = block_is_partially_uptodate,
+        .error_remove_page      = generic_error_remove_page,
 };
 
 void ext4_set_aops(struct inode *inode)
diff --git a/fs/gfs2/aops.c b/fs/gfs2/aops.c
index 7ebae9a4ecc0..694b5d48f036 100644
--- a/fs/gfs2/aops.c
+++ b/fs/gfs2/aops.c
@@ -1135,6 +1135,7 @@ static const struct address_space_operations gfs2_writeback_aops = {
         .direct_IO = gfs2_direct_IO,
         .migratepage = buffer_migrate_page,
         .is_partially_uptodate = block_is_partially_uptodate,
+        .error_remove_page = generic_error_remove_page,
 };
 
 static const struct address_space_operations gfs2_ordered_aops = {
@@ -1151,6 +1152,7 @@ static const struct address_space_operations gfs2_ordered_aops = {
         .direct_IO = gfs2_direct_IO,
         .migratepage = buffer_migrate_page,
         .is_partially_uptodate = block_is_partially_uptodate,
+        .error_remove_page = generic_error_remove_page,
 };
 
 static const struct address_space_operations gfs2_jdata_aops = {
@@ -1166,6 +1168,7 @@ static const struct address_space_operations gfs2_jdata_aops = {
         .invalidatepage = gfs2_invalidatepage,
         .releasepage = gfs2_releasepage,
         .is_partially_uptodate = block_is_partially_uptodate,
+        .error_remove_page = generic_error_remove_page,
 };
 
 void gfs2_set_aops(struct inode *inode)
diff --git a/fs/nfs/file.c b/fs/nfs/file.c
index 5021b75d2d1e..86d6b4db1096 100644
--- a/fs/nfs/file.c
+++ b/fs/nfs/file.c
@@ -525,6 +525,7 @@ const struct address_space_operations nfs_file_aops = {
         .direct_IO = nfs_direct_IO,
         .migratepage = nfs_migrate_page,
         .launder_page = nfs_launder_page,
+        .error_remove_page = generic_error_remove_page,
 };
 
 /*
diff --git a/fs/ntfs/aops.c b/fs/ntfs/aops.c
index b38f944f0667..cfce53cb65d7 100644
--- a/fs/ntfs/aops.c
+++ b/fs/ntfs/aops.c
@@ -1550,6 +1550,7 @@ const struct address_space_operations ntfs_aops = {
         .migratepage    = buffer_migrate_page,  /* Move a page cache page from
                                                    one physical page to an
                                                    other. */
+        .error_remove_page = generic_error_remove_page,
 };
 
 /**
@@ -1569,6 +1570,7 @@ const struct address_space_operations ntfs_mst_aops = {
         .migratepage    = buffer_migrate_page,  /* Move a page cache page from
                                                    one physical page to an
                                                    other. */
+        .error_remove_page = generic_error_remove_page,
 };
 
 #ifdef NTFS_RW
diff --git a/fs/ocfs2/aops.c b/fs/ocfs2/aops.c
index 72e76062a900..deb2b132ae5e 100644
--- a/fs/ocfs2/aops.c
+++ b/fs/ocfs2/aops.c
@@ -2022,4 +2022,5 @@ const struct address_space_operations ocfs2_aops = {
         .releasepage            = ocfs2_releasepage,
         .migratepage            = buffer_migrate_page,
         .is_partially_uptodate  = block_is_partially_uptodate,
+        .error_remove_page      = generic_error_remove_page,
 };
diff --git a/fs/proc/meminfo.c b/fs/proc/meminfo.c
index 171e052c07b3..c7bff4f603ff 100644
--- a/fs/proc/meminfo.c
+++ b/fs/proc/meminfo.c
@@ -97,7 +97,11 @@ static int meminfo_proc_show(struct seq_file *m, void *v)
                 "Committed_AS:   %8lu kB\n"
                 "VmallocTotal:   %8lu kB\n"
                 "VmallocUsed:    %8lu kB\n"
-                "VmallocChunk:   %8lu kB\n",
+                "VmallocChunk:   %8lu kB\n"
+#ifdef CONFIG_MEMORY_FAILURE
+                "HardwareCorrupted: %8lu kB\n"
+#endif
+                ,
                 K(i.totalram),
                 K(i.freeram),
                 K(i.bufferram),
@@ -144,6 +148,9 @@ static int meminfo_proc_show(struct seq_file *m, void *v)
                 (unsigned long)VMALLOC_TOTAL >> 10,
                 vmi.used >> 10,
                 vmi.largest_chunk >> 10
+#ifdef CONFIG_MEMORY_FAILURE
+                ,atomic_long_read(&mce_bad_pages) << (PAGE_SHIFT - 10)
+#endif
                 );
 
         hugetlb_report_meminfo(m);
diff --git a/fs/xfs/linux-2.6/xfs_aops.c b/fs/xfs/linux-2.6/xfs_aops.c
index d5e5559e31db..381854461b28 100644
--- a/fs/xfs/linux-2.6/xfs_aops.c
+++ b/fs/xfs/linux-2.6/xfs_aops.c
@@ -1635,4 +1635,5 @@ const struct address_space_operations xfs_address_space_operations = {
         .direct_IO              = xfs_vm_direct_IO,
         .migratepage            = buffer_migrate_page,
         .is_partially_uptodate  = block_is_partially_uptodate,
+        .error_remove_page      = generic_error_remove_page,
 };