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xfs: move v1 inode conversion to xfs_inode_from_disk

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So we don't have to carry an di_onlink variable around anymore, move
the inode conversion from v1 inode format to v2 inode format into
xfs_inode_from_disk(). This means we can remove the di_onlink fields
from the struct xfs_icdinode.

Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Brian Foster <bfoster@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Dave Chinner <david@fromorbit.com>
This commit is contained in:
Dave Chinner 2016-02-09 16:54:58 +11:00 committed by Dave Chinner
parent 93f958f9c4
commit faeb4e4715
5 changed files with 22 additions and 27 deletions
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42
fs/xfs/libxfs/xfs_inode_buf.c
View File

@ -204,13 +204,25 @@ xfs_inode_from_disk(
to->di_mode = be16_to_cpu(from->di_mode);
to->di_version = from ->di_version;
/*
* Convert v1 inodes immediately to v2 inode format as this is the
* minimum inode version format we support in the rest of the code.
*/
if (to->di_version == 1) {
to->di_nlink = be16_to_cpu(from->di_onlink);
to->di_projid_lo = 0;
to->di_projid_hi = 0;
to->di_version = 2;
} else {
to->di_nlink = be32_to_cpu(from->di_nlink);
to->di_projid_lo = be16_to_cpu(from->di_projid_lo);
to->di_projid_hi = be16_to_cpu(from->di_projid_hi);
}
to->di_format = from->di_format;
to->di_onlink = be16_to_cpu(from->di_onlink);
to->di_uid = be32_to_cpu(from->di_uid);
to->di_gid = be32_to_cpu(from->di_gid);
to->di_nlink = be32_to_cpu(from->di_nlink);
to->di_projid_lo = be16_to_cpu(from->di_projid_lo);
to->di_projid_hi = be16_to_cpu(from->di_projid_hi);
to->di_flushiter = be16_to_cpu(from->di_flushiter);
/*
@ -256,11 +268,11 @@ xfs_inode_to_disk(
struct inode *inode = VFS_I(ip);
to->di_magic = cpu_to_be16(XFS_DINODE_MAGIC);
to->di_onlink = 0;
to->di_mode = cpu_to_be16(from->di_mode);
to->di_version = from->di_version;
to->di_format = from->di_format;
to->di_onlink = cpu_to_be16(from->di_onlink);
to->di_uid = cpu_to_be32(from->di_uid);
to->di_gid = cpu_to_be32(from->di_gid);
to->di_nlink = cpu_to_be32(from->di_nlink);
@ -310,9 +322,9 @@ xfs_log_dinode_to_disk(
{
to->di_magic = cpu_to_be16(from->di_magic);
to->di_mode = cpu_to_be16(from->di_mode);
to->di_version = from ->di_version;
to->di_version = from->di_version;
to->di_format = from->di_format;
to->di_onlink = cpu_to_be16(from->di_onlink);
to->di_onlink = 0;
to->di_uid = cpu_to_be32(from->di_uid);
to->di_gid = cpu_to_be32(from->di_gid);
to->di_nlink = cpu_to_be32(from->di_nlink);
@ -492,21 +504,7 @@ xfs_iread(
ip->i_d.di_mode = 0;
}
/*
* Automatically convert version 1 inode formats in memory to version 2
* inode format. If the inode is modified, it will get logged and
* rewritten as a version 2 inode. We can do this because we set the
* superblock feature bit for v2 inodes unconditionally during mount
* and it means the reast of the code can assume the inode version is 2
* or higher.
*/
if (ip->i_d.di_version == 1) {
ip->i_d.di_version = 2;
ip->i_d.di_nlink = ip->i_d.di_onlink;
ip->i_d.di_onlink = 0;
xfs_set_projid(ip, 0);
}
ASSERT(ip->i_d.di_version >= 2);
ip->i_delayed_blks = 0;
/*

1
fs/xfs/libxfs/xfs_inode_buf.h
View File

@ -31,7 +31,6 @@ struct xfs_icdinode {
__uint16_t di_mode; /* mode and type of file */
__int8_t di_version; /* inode version */
__int8_t di_format; /* format of di_c data */
__uint16_t di_onlink; /* old number of links to file */
__uint16_t di_flushiter; /* incremented on flush */
__uint32_t di_uid; /* owner's user id */
__uint32_t di_gid; /* owner's group id */

2
fs/xfs/libxfs/xfs_log_format.h
View File

@ -369,7 +369,7 @@ struct xfs_log_dinode {
__uint16_t di_mode; /* mode and type of file */
__int8_t di_version; /* inode version */
__int8_t di_format; /* format of di_c data */
__uint16_t di_onlink; /* old number of links to file */
__uint8_t di_pad3[2]; /* unused in v2/3 inodes */
__uint32_t di_uid; /* owner's user id */
__uint32_t di_gid; /* owner's group id */
__uint32_t di_nlink; /* number of links to file */

2
fs/xfs/xfs_inode.c
View File

@ -803,9 +803,7 @@ xfs_ialloc(
ip->i_d.di_version = 2;
ip->i_d.di_mode = mode;
ip->i_d.di_onlink = 0;
ip->i_d.di_nlink = nlink;
ASSERT(ip->i_d.di_nlink == nlink);
ip->i_d.di_uid = xfs_kuid_to_uid(current_fsuid());
ip->i_d.di_gid = xfs_kgid_to_gid(current_fsgid());
xfs_set_projid(ip, prid);

2
fs/xfs/xfs_inode_item.c
View File

@ -336,7 +336,6 @@ xfs_inode_to_log_dinode(
to->di_mode = from->di_mode;
to->di_version = from->di_version;
to->di_format = from->di_format;
to->di_onlink = from->di_onlink;
to->di_uid = from->di_uid;
to->di_gid = from->di_gid;
to->di_nlink = from->di_nlink;
@ -344,6 +343,7 @@ xfs_inode_to_log_dinode(
to->di_projid_hi = from->di_projid_hi;
memset(to->di_pad, 0, sizeof(to->di_pad));
memset(to->di_pad3, 0, sizeof(to->di_pad3));
to->di_atime.t_sec = inode->i_atime.tv_sec;
to->di_atime.t_nsec = inode->i_atime.tv_nsec;
to->di_mtime.t_sec = inode->i_mtime.tv_sec;