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authorWengang Wang <wen.gang.wang@oracle.com>2010-02-09 01:57:45 -0500
committerJoel Becker <joel.becker@oracle.com>2010-02-26 18:41:07 -0500
commit96a1cc731adb28dc4feb71701091b80e67d486a7 (patch)
tree0220e211d3468b18e288d77bc828b6101adc9245 /fs/ocfs2
parentb89c54282db0c8634a2d2dc200f196d571750ce5 (diff)
ocfs2: Clean up the checks for CoW and direct I/O.
When ocfs2 has to do CoW for refcounted extents, we disable direct I/O and go through the buffered I/O path. This makes the combined check easier to read. Signed-off-by: Wengang Wang <wen.gang.wang@oracle.com> Signed-off-by: Joel Becker <joel.becker@oracle.com>
Diffstat (limited to 'fs/ocfs2')
-rw-r--r--fs/ocfs2/file.c6
1 files changed, 2 insertions, 4 deletions
diff --git a/fs/ocfs2/file.c b/fs/ocfs2/file.c
index 558ce0312421..da097bd07b72 100644
--- a/fs/ocfs2/file.c
+++ b/fs/ocfs2/file.c
@@ -1836,6 +1836,8 @@ static int ocfs2_prepare_inode_for_write(struct dentry *dentry,
1836 &meta_level); 1836 &meta_level);
1837 if (has_refcount) 1837 if (has_refcount)
1838 *has_refcount = 1; 1838 *has_refcount = 1;
1839 if (direct_io)
1840 *direct_io = 0;
1839 } 1841 }
1840 1842
1841 if (ret < 0) { 1843 if (ret < 0) {
@@ -1859,10 +1861,6 @@ static int ocfs2_prepare_inode_for_write(struct dentry *dentry,
1859 break; 1861 break;
1860 } 1862 }
1861 1863
1862 if (has_refcount && *has_refcount == 1) {
1863 *direct_io = 0;
1864 break;
1865 }
1866 /* 1864 /*
1867 * Allowing concurrent direct writes means 1865 * Allowing concurrent direct writes means
1868 * i_size changes wouldn't be synchronized, so 1866 * i_size changes wouldn't be synchronized, so