xfs: use a struct timespec64 for the in-core crtime

struct xfs_icdinode is purely an in-memory data structure, so don't use
a log on-disk structure for it.  This simplifies the code a bit, and
also reduces our include hell slightly.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
[darrick: fix a minor indenting problem in xfs_trans_ichgtime]
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>

fs/xfs/libxfs/xfs_inode_buf.c

@@ -256,8 +256,8 @@ xfs_inode_from_disk(
 	if (to->di_version == 3) {
 		inode_set_iversion_queried(inode,
 					   be64_to_cpu(from->di_changecount));
-		to->di_crtime.t_sec = be32_to_cpu(from->di_crtime.t_sec);
-		to->di_crtime.t_nsec = be32_to_cpu(from->di_crtime.t_nsec);
+		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_flags2 = be64_to_cpu(from->di_flags2);
 		to->di_cowextsize = be32_to_cpu(from->di_cowextsize);
 	}
@@ -306,8 +306,8 @@ xfs_inode_to_disk(
 
 	if (from->di_version == 3) {
 		to->di_changecount = cpu_to_be64(inode_peek_iversion(inode));
-		to->di_crtime.t_sec = cpu_to_be32(from->di_crtime.t_sec);
-		to->di_crtime.t_nsec = cpu_to_be32(from->di_crtime.t_nsec);
+		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_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);

fs/xfs/libxfs/xfs_inode_buf.h

@@ -37,7 +37,7 @@ struct xfs_icdinode {
 	uint64_t	di_flags2;	/* more random flags */
 	uint32_t	di_cowextsize;	/* basic cow extent size for file */
 
-	xfs_ictimestamp_t di_crtime;	/* time created */
+	struct timespec64 di_crtime;	/* time created */
 };
 
 /*

fs/xfs/libxfs/xfs_trans_inode.c

@@ -66,10 +66,8 @@ xfs_trans_ichgtime(
 		inode->i_mtime = tv;
 	if (flags & XFS_ICHGTIME_CHG)
 		inode->i_ctime = tv;
-	if (flags & XFS_ICHGTIME_CREATE) {
-		ip->i_d.di_crtime.t_sec = (int32_t)tv.tv_sec;
-		ip->i_d.di_crtime.t_nsec = (int32_t)tv.tv_nsec;
-	}
+	if (flags & XFS_ICHGTIME_CREATE)
+		ip->i_d.di_crtime = tv;
 }
 
 /*

fs/xfs/xfs_inode.c

@@ -851,8 +851,7 @@ xfs_ialloc(
 		inode_set_iversion(inode, 1);
 		ip->i_d.di_flags2 = 0;
 		ip->i_d.di_cowextsize = 0;
-		ip->i_d.di_crtime.t_sec = (int32_t)tv.tv_sec;
-		ip->i_d.di_crtime.t_nsec = (int32_t)tv.tv_nsec;
+		ip->i_d.di_crtime = tv;
 	}
 
 

fs/xfs/xfs_inode_item.c

@@ -341,8 +341,8 @@ xfs_inode_to_log_dinode(
 
 	if (from->di_version == 3) {
 		to->di_changecount = inode_peek_iversion(inode);
-		to->di_crtime.t_sec = from->di_crtime.t_sec;
-		to->di_crtime.t_nsec = from->di_crtime.t_nsec;
+		to->di_crtime.t_sec = from->di_crtime.tv_sec;
+		to->di_crtime.t_nsec = from->di_crtime.tv_nsec;
 		to->di_flags2 = from->di_flags2;
 		to->di_cowextsize = from->di_cowextsize;
 		to->di_ino = ip->i_ino;

fs/xfs/xfs_iops.c

@@ -554,8 +554,7 @@ xfs_vn_getattr(
 	if (ip->i_d.di_version == 3) {
 		if (request_mask & STATX_BTIME) {
 			stat->result_mask |= STATX_BTIME;
-			stat->btime.tv_sec = ip->i_d.di_crtime.t_sec;
-			stat->btime.tv_nsec = ip->i_d.di_crtime.t_nsec;
+			stat->btime = ip->i_d.di_crtime;
 		}
 	}
 

fs/xfs/xfs_itable.c

@@ -97,8 +97,8 @@ xfs_bulkstat_one_int(
 	buf->bs_mtime_nsec = inode->i_mtime.tv_nsec;
 	buf->bs_ctime = inode->i_ctime.tv_sec;
 	buf->bs_ctime_nsec = inode->i_ctime.tv_nsec;
-	buf->bs_btime = dic->di_crtime.t_sec;
-	buf->bs_btime_nsec = dic->di_crtime.t_nsec;
+	buf->bs_btime = dic->di_crtime.tv_sec;
+	buf->bs_btime_nsec = dic->di_crtime.tv_nsec;
 	buf->bs_gen = inode->i_generation;
 	buf->bs_mode = inode->i_mode;