From: Dave Chinner <david@fromorbit.com>
To: xfs@oss.sgi.com
Subject: [PATCH] xfs: return inode fork offset in bulkstat for fsr
Date: Fri, 5 Mar 2010 15:41:14 +1100 [thread overview]
Message-ID: <1267764074-30733-1-git-send-email-david@fromorbit.com> (raw)
From: Dave Chinner <dchinner@redhat.com>
So that fsr can attempt to get the fork offset of the temporary
inode it uses the same as the inode it is defragmenting, pass
the fork offset out in the bulkstat information.
The bulkstat structure has padding that has always been zeroed,
so userspace can tell if this field is set or not by use of
the xattr present flag and a non-zero value for the fork offset.
Signed-off-by: Dave Chinner <dchinner@redhat.com>
---
fs/xfs/xfs_fs.h | 3 ++-
fs/xfs/xfs_itable.c | 2 ++
2 files changed, 4 insertions(+), 1 deletions(-)
diff --git a/fs/xfs/xfs_fs.h b/fs/xfs/xfs_fs.h
index f52ac27..7cf7220 100644
--- a/fs/xfs/xfs_fs.h
+++ b/fs/xfs/xfs_fs.h
@@ -292,7 +292,8 @@ typedef struct xfs_bstat {
__s32 bs_extents; /* number of extents */
__u32 bs_gen; /* generation count */
__u16 bs_projid; /* project id */
- unsigned char bs_pad[14]; /* pad space, unused */
+ __u16 bs_forkoff; /* inode fork offset in bytes */
+ unsigned char bs_pad[12]; /* pad space, unused */
__u32 bs_dmevmask; /* DMIG event mask */
__u16 bs_dmstate; /* DMIG state info */
__u16 bs_aextents; /* attribute number of extents */
diff --git a/fs/xfs/xfs_itable.c b/fs/xfs/xfs_itable.c
index 3af0231..b1b801e 100644
--- a/fs/xfs/xfs_itable.c
+++ b/fs/xfs/xfs_itable.c
@@ -106,6 +106,7 @@ xfs_bulkstat_one_iget(
buf->bs_dmevmask = dic->di_dmevmask;
buf->bs_dmstate = dic->di_dmstate;
buf->bs_aextents = dic->di_anextents;
+ buf->bs_forkoff = XFS_IFORK_BOFF(ip);
switch (dic->di_format) {
case XFS_DINODE_FMT_DEV:
@@ -176,6 +177,7 @@ xfs_bulkstat_one_dinode(
buf->bs_dmevmask = be32_to_cpu(dic->di_dmevmask);
buf->bs_dmstate = be16_to_cpu(dic->di_dmstate);
buf->bs_aextents = be16_to_cpu(dic->di_anextents);
+ buf->bs_forkoff = XFS_DFORK_BOFF(dic);
switch (dic->di_format) {
case XFS_DINODE_FMT_DEV:
--
1.6.5
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next reply other threads:[~2010-03-05 4:39 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-03-05 4:41 Dave Chinner [this message]
2010-03-05 10:06 ` [PATCH] xfs: return inode fork offset in bulkstat for fsr Christoph Hellwig
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