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xfs: redefine xfs_timestamp_t

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Redefine xfs_timestamp_t as a __be64 typedef in preparation for the
bigtime functionality.  Preserve the legacy structure format so that we
can let the compiler take care of masking and shifting.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Gao Xiang <hsiangkao@redhat.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
This commit is contained in:
Darrick J. Wong 2020-08-24 15:15:46 -07:00
parent 88947ea0ba
commit 5a0bb066f6
6 changed files with 85 additions and 36 deletions
Download patch file Download diff file Expand all files Collapse all files

54
fs/xfs/libxfs/xfs_inode_buf.c
View file

@ -157,6 +157,21 @@ xfs_imap_to_bp(
return 0;
}
/* Convert an ondisk timestamp to an incore timestamp. */
struct timespec64
xfs_inode_from_disk_ts(
const xfs_timestamp_t ts)
{
struct timespec64 tv;
struct xfs_legacy_timestamp *lts;
lts = (struct xfs_legacy_timestamp *)&ts;
tv.tv_sec = (int)be32_to_cpu(lts->t_sec);
tv.tv_nsec = (int)be32_to_cpu(lts->t_nsec);
return tv;
}
int
xfs_inode_from_disk(
struct xfs_inode *ip,
@ -211,12 +226,9 @@ xfs_inode_from_disk(
* a time before epoch is converted to a time long after epoch
* on 64 bit systems.
*/
inode->i_atime.tv_sec = (int)be32_to_cpu(from->di_atime.t_sec);
inode->i_atime.tv_nsec = (int)be32_to_cpu(from->di_atime.t_nsec);
inode->i_mtime.tv_sec = (int)be32_to_cpu(from->di_mtime.t_sec);
inode->i_mtime.tv_nsec = (int)be32_to_cpu(from->di_mtime.t_nsec);
inode->i_ctime.tv_sec = (int)be32_to_cpu(from->di_ctime.t_sec);
inode->i_ctime.tv_nsec = (int)be32_to_cpu(from->di_ctime.t_nsec);
inode->i_atime = xfs_inode_from_disk_ts(from->di_atime);
inode->i_mtime = xfs_inode_from_disk_ts(from->di_mtime);
inode->i_ctime = xfs_inode_from_disk_ts(from->di_ctime);
to->di_size = be64_to_cpu(from->di_size);
to->di_nblocks = be64_to_cpu(from->di_nblocks);
@ -229,8 +241,7 @@ xfs_inode_from_disk(
if (xfs_sb_version_has_v3inode(&ip->i_mount->m_sb)) {
inode_set_iversion_queried(inode,
be64_to_cpu(from->di_changecount));
to->di_crtime.tv_sec = be32_to_cpu(from->di_crtime.t_sec);
to->di_crtime.tv_nsec = be32_to_cpu(from->di_crtime.t_nsec);
to->di_crtime = xfs_inode_from_disk_ts(from->di_crtime);
to->di_flags2 = be64_to_cpu(from->di_flags2);
to->di_cowextsize = be32_to_cpu(from->di_cowextsize);
}
@ -252,6 +263,21 @@ out_destroy_data_fork:
return error;
}
/* Convert an incore timestamp to an ondisk timestamp. */
static inline xfs_timestamp_t
xfs_inode_to_disk_ts(
const struct timespec64 tv)
{
struct xfs_legacy_timestamp *lts;
xfs_timestamp_t ts;
lts = (struct xfs_legacy_timestamp *)&ts;
lts->t_sec = cpu_to_be32(tv.tv_sec);
lts->t_nsec = cpu_to_be32(tv.tv_nsec);
return ts;
}
void
xfs_inode_to_disk(
struct xfs_inode *ip,
@ -271,12 +297,9 @@ xfs_inode_to_disk(
to->di_projid_hi = cpu_to_be16(from->di_projid >> 16);
memset(to->di_pad, 0, sizeof(to->di_pad));
to->di_atime.t_sec = cpu_to_be32(inode->i_atime.tv_sec);
to->di_atime.t_nsec = cpu_to_be32(inode->i_atime.tv_nsec);
to->di_mtime.t_sec = cpu_to_be32(inode->i_mtime.tv_sec);
to->di_mtime.t_nsec = cpu_to_be32(inode->i_mtime.tv_nsec);
to->di_ctime.t_sec = cpu_to_be32(inode->i_ctime.tv_sec);
to->di_ctime.t_nsec = cpu_to_be32(inode->i_ctime.tv_nsec);
to->di_atime = xfs_inode_to_disk_ts(inode->i_atime);
to->di_mtime = xfs_inode_to_disk_ts(inode->i_mtime);
to->di_ctime = xfs_inode_to_disk_ts(inode->i_ctime);
to->di_nlink = cpu_to_be32(inode->i_nlink);
to->di_gen = cpu_to_be32(inode->i_generation);
to->di_mode = cpu_to_be16(inode->i_mode);
@ -295,8 +318,7 @@ xfs_inode_to_disk(
if (xfs_sb_version_has_v3inode(&ip->i_mount->m_sb)) {
to->di_version = 3;
to->di_changecount = cpu_to_be64(inode_peek_iversion(inode));
to->di_crtime.t_sec = cpu_to_be32(from->di_crtime.tv_sec);
to->di_crtime.t_nsec = cpu_to_be32(from->di_crtime.tv_nsec);
to->di_crtime = xfs_inode_to_disk_ts(from->di_crtime);
to->di_flags2 = cpu_to_be64(from->di_flags2);
to->di_cowextsize = cpu_to_be32(from->di_cowextsize);
to->di_ino = cpu_to_be64(ip->i_ino);