Default to log, attr, inodes v2, Drop the ability to turn unwritten extents off completly, reduce imaxpct for big filesystems, less AGs for single disks configs.

-
Default to log version 2

Change logversion to 2 in xfs_mkfs.c
-
Default to version 2 attributes.

Change attrversion from 0 to 2 in xfs_mkfs.c
-
Drop the ability to turn unwritten extents off completly

unwritten extents on linux are generally a bad idea, this option
should not be used.

Remove the mount option from xfs_mkfs.c:
  remove it from option list,
  remove it from mkfs output.

Update xfs.mkfs manpage.
-
V2 inodes per default, and move DFL bits to XFS_DFL_SB_VERSION_BITS,

Activate XFS_SB_VERSION_NLINKBIT per default, which will enable V2 INODES.
refactor bits that we want everytime in XFS_DFL_SB_VERSION_BITS.
-
reduce imaxpct for big filesystems,

imaxpct is set to 25% (XFS_DFL_IMAXIMUM_PCT) for FS < 1 TB,
then 5% for FS < 50 TB,
and then (over 50 TB) 1%.

It is implemented as a simple step function in calc_default_imaxpct()
-
less AGs for single disks configs.

get the underlying structure with get_subvol_stripe_wrapper(),
and pass sunit | swidth as an argument to calc_default_ag_geometry().

if it is set, we are in single disk, get XFS_AG_MAX_BLOCKS for FS >= 4TB,
and calculate ag numbers regarding to that.
get 4 AGs for FS < 4TB.

we calculate according to blocks or count if we have them, add an assert to
ensure we have one of the 2.
Merge of master-melb:xfs-cmds:30077a by kenmcd.

1 files changed, 4 insertions, 7 deletions

diff --git a/growfs/xfs_growfs.c b/growfs/xfs_growfs.c
index b029e1b52f..5767f100f0 100644
--- a/growfs/xfs_growfs.c
+++ b/growfs/xfs_growfs.c
@@ -58,7 +58,6 @@ report_info(
 	int		isint,
 	char		*logname,
 	char		*rtname,
-	int		unwritten,
 	int		lazycount,
 	int		dirversion,
 	int		logversion,
@@ -68,7 +67,7 @@ report_info(
 	    "meta-data=%-22s isize=%-6u agcount=%u, agsize=%u blks\n"
 	    "         =%-22s sectsz=%-5u attr=%u\n"
 	    "data     =%-22s bsize=%-6u blocks=%llu, imaxpct=%u\n"
-	    "         =%-22s sunit=%-6u swidth=%u blks, unwritten=%u\n"
+	    "         =%-22s sunit=%-6u swidth=%u blks"
 	    "naming   =version %-14u bsize=%-6u\n"
 	    "log      =%-22s bsize=%-6u blocks=%u, version=%u\n"
 	    "         =%-22s sectsz=%-5u sunit=%u blks, lazy-count=%u\n"
@@ -78,7 +77,7 @@ report_info(
 		"", geo.sectsize, attrversion,
 		"", geo.blocksize, (unsigned long long)geo.datablocks,
 			geo.imaxpct,
-		"", geo.sunit, geo.swidth, unwritten,
+		"", geo.sunit, geo.swidth,
   		dirversion, geo.dirblocksize,
 		isint ? _("internal") : logname ? logname : _("external"),
 			geo.blocksize, geo.logblocks, logversion,
@@ -115,7 +114,6 @@ main(int argc, char **argv)
 	xfs_fsop_geom_t		ngeo;	/* new fs geometry */
 	int			rflag;	/* -r flag */
 	long long		rsize;	/* new rt size in fs blocks */
-	int			unwritten; /* unwritten extent flag */
 	int			lazycount; /* lazy superblock counters */
 	int			xflag;	/* -x flag */
 	char			*fname;	/* mount point name */
@@ -236,7 +234,6 @@ main(int argc, char **argv)
 		}
 	}
 	isint = geo.logstart > 0;
-	unwritten = geo.flags & XFS_FSOP_GEOM_FLAGS_EXTFLG ? 1 : 0;
 	lazycount = geo.flags & XFS_FSOP_GEOM_FLAGS_LAZYSB ? 1 : 0;
 	dirversion = geo.flags & XFS_FSOP_GEOM_FLAGS_DIRV2 ? 2 : 1;
 	logversion = geo.flags & XFS_FSOP_GEOM_FLAGS_LOGV2 ? 2 : 1;
@@ -245,7 +242,7 @@ main(int argc, char **argv)
 
 	if (nflag) {
 		report_info(geo, datadev, isint, logdev, rtdev,
-				unwritten, lazycount, dirversion, logversion,
+				lazycount, dirversion, logversion,
 				attrversion);
 		exit(0);
 	}
@@ -282,7 +279,7 @@ main(int argc, char **argv)
 	}
 
 	report_info(geo, datadev, isint, logdev, rtdev,
-			unwritten, lazycount, dirversion, logversion,
+			lazycount, dirversion, logversion,
 			attrversion);
 
 	ddsize = xi.dsize;