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ocfs2: add functions to add and remove inode in orphan dir

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Add functions to add inode to orphan dir and remove inode in orphan dir.
Here we do not call ocfs2_prepare_orphan_dir and ocfs2_orphan_add
directly.  Because append O_DIRECT will add inode to orphan two and may
result in more than one orphan entry for the same inode.

[akpm@linux-foundation.org: avoid dynamic stack allocation]
Signed-off-by: Joseph Qi <joseph.qi@huawei.com>
Cc: Weiwei Wang <wangww631@huawei.com>
Cc: Junxiao Bi <junxiao.bi@oracle.com>
Cc: Joel Becker <jlbec@evilplan.org>
Cc: Mark Fasheh <mfasheh@suse.com>
Cc: Xuejiufei <xuejiufei@huawei.com>
Cc: alex chen <alex.chen@huawei.com>
Cc: Fengguang Wu <fengguang.wu@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Joseph Qi
2015-02-16 15:59:54 -08:00
committed by Linus Torvalds
parent 026749a86e
commit 06ee5c75b5
5 changed files with 238 additions and 30 deletions
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6
fs/ocfs2/ocfs2_fs.h
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@@ -229,6 +229,8 @@
#define OCFS2_CHAIN_FL (0x00000400) /* Chain allocator */
#define OCFS2_DEALLOC_FL (0x00000800) /* Truncate log */
#define OCFS2_QUOTA_FL (0x00001000) /* Quota file */
#define OCFS2_DIO_ORPHANED_FL (0X00002000) /* On the orphan list especially
* for dio */
/*
* Flags on ocfs2_dinode.i_dyn_features
@@ -729,7 +731,9 @@ struct ocfs2_dinode {
inode belongs to. Only valid
if allocated from a
discontiguous block group */
/*A0*/ __le64 i_reserved2[3];
/*A0*/ __le16 i_dio_orphaned_slot; /* only used for append dio write */
__le16 i_reserved1[3];
__le64 i_reserved2[2];
/*B8*/ union {
__le64 i_pad1; /* Generic way to refer to this
64bit union */