Merge branch 'for-2.6.37/barrier' of git://git.kernel.dk/linux-2.6-block

* 'for-2.6.37/barrier' of git://git.kernel.dk/linux-2.6-block: (46 commits)
  xen-blkfront: disable barrier/flush write support
  Added blk-lib.c and blk-barrier.c was renamed to blk-flush.c
  block: remove BLKDEV_IFL_WAIT
  aic7xxx_old: removed unused 'req' variable
  block: remove the BH_Eopnotsupp flag
  block: remove the BLKDEV_IFL_BARRIER flag
  block: remove the WRITE_BARRIER flag
  swap: do not send discards as barriers
  fat: do not send discards as barriers
  ext4: do not send discards as barriers
  jbd2: replace barriers with explicit flush / FUA usage
  jbd2: Modify ASYNC_COMMIT code to not rely on queue draining on barrier
  jbd: replace barriers with explicit flush / FUA usage
  nilfs2: replace barriers with explicit flush / FUA usage
  reiserfs: replace barriers with explicit flush / FUA usage
  gfs2: replace barriers with explicit flush / FUA usage
  btrfs: replace barriers with explicit flush / FUA usage
  xfs: replace barriers with explicit flush / FUA usage
  block: pass gfp_mask and flags to sb_issue_discard
  dm: convey that all flushes are processed as empty
  ...

2 files changed, 3 insertions, 5 deletions

diff --git a/fs/fat/fatent.c b/fs/fat/fatent.c
index 81184d3b75a..b47d2c9f4fa 100644
--- a/fs/fat/fatent.c
+++ b/fs/fat/fatent.c
@@ -577,7 +577,8 @@ int fat_free_clusters(struct inode *inode, int cluster)
 
                                 sb_issue_discard(sb,
                                         fat_clus_to_blknr(sbi, first_cl),
-                                        nr_clus * sbi->sec_per_clus);
+                                        nr_clus * sbi->sec_per_clus,
+                                        GFP_NOFS, 0);
 
                                 first_cl = cluster;
                         }
diff --git a/fs/fat/misc.c b/fs/fat/misc.c
index 1736f235638..970e682ea75 100644
--- a/fs/fat/misc.c
+++ b/fs/fat/misc.c
@@ -255,10 +255,7 @@ int fat_sync_bhs(struct buffer_head **bhs, int nr_bhs)
 
         for (i = 0; i < nr_bhs; i++) {
                 wait_on_buffer(bhs[i]);
-                if (buffer_eopnotsupp(bhs[i])) {
-                        clear_buffer_eopnotsupp(bhs[i]);
-                        err = -EOPNOTSUPP;
-                } else if (!err && !buffer_uptodate(bhs[i]))
+                if (!err && !buffer_uptodate(bhs[i]))
                         err = -EIO;
         }
         return err;