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Diffstat (limited to 'fs/gfs2/ops_address.c')
-rw-r--r--fs/gfs2/ops_address.c33
1 files changed, 29 insertions, 4 deletions
diff --git a/fs/gfs2/ops_address.c b/fs/gfs2/ops_address.c
index 48720421c79..0de7a952363 100644
--- a/fs/gfs2/ops_address.c
+++ b/fs/gfs2/ops_address.c
@@ -118,6 +118,25 @@ static int get_block_noalloc(struct inode *inode, sector_t lblock,
return error;
}
+static int get_block_direct(struct inode *inode, sector_t lblock,
+ struct buffer_head *bh_result, int create)
+{
+ int new = 0;
+ u64 dblock;
+ int error, boundary;
+
+ error = gfs2_block_map(inode, lblock, &new, &dblock, &boundary);
+ if (error)
+ return error;
+
+ if (dblock) {
+ map_bh(bh_result, inode->i_sb, dblock);
+ if (boundary)
+ set_buffer_boundary(bh_result);
+ }
+
+ return 0;
+}
/**
* gfs2_writepage - Write complete page
* @page: Page to write
@@ -661,7 +680,7 @@ static ssize_t gfs2_direct_IO(int rw, struct kiocb *iocb,
rv = blockdev_direct_IO_own_locking(rw, iocb, inode,
inode->i_sb->s_bdev,
iov, offset, nr_segs,
- gfs2_get_block, NULL);
+ get_block_direct, NULL);
out:
gfs2_glock_dq_m(1, &gh);
gfs2_holder_uninit(&gh);
@@ -724,7 +743,7 @@ static unsigned limit = 0;
}
/**
- * gfs2_aspace_releasepage - free the metadata associated with a page
+ * gfs2_releasepage - free the metadata associated with a page
* @page: the page that's being released
* @gfp_mask: passed from Linux VFS, ignored by us
*
@@ -761,16 +780,22 @@ int gfs2_releasepage(struct page *page, gfp_t gfp_mask)
}
gfs2_assert_warn(sdp, !buffer_pinned(bh));
+ gfs2_assert_warn(sdp, !buffer_dirty(bh));
+ gfs2_log_lock(sdp);
bd = bh->b_private;
if (bd) {
gfs2_assert_warn(sdp, bd->bd_bh == bh);
gfs2_assert_warn(sdp, list_empty(&bd->bd_list_tr));
- gfs2_assert_warn(sdp, list_empty(&bd->bd_le.le_list));
gfs2_assert_warn(sdp, !bd->bd_ail);
- kmem_cache_free(gfs2_bufdata_cachep, bd);
+ bd->bd_bh = NULL;
+ if (!list_empty(&bd->bd_le.le_list))
+ bd = NULL;
bh->b_private = NULL;
}
+ gfs2_log_unlock(sdp);
+ if (bd)
+ kmem_cache_free(gfs2_bufdata_cachep, bd);
bh = bh->b_this_page;
} while (bh != head);