#include <sys/ioctl.h>
#include <linux/fs.h>
+#include <linux/version.h>
#include <linux/fiemap.h>
+#if !defined(FIEMAP_EXTENT_SHARED) && (HAVE_OWN_FIEMAP_EXTENT_SHARED_DEFINE == 1)
+#define FIEMAP_EXTENT_SHARED 0x00002000
+#endif
+
#include "utils.h"
#include "commands.h"
#include "kerncompat.h"
#include "rbtree.h"
#include "interval_tree_generic.h"
+#include "help.h"
+#include "fsfeatures.h"
static int summarize = 0;
static unsigned unit_mode = UNITS_RAW;
}
}
-#define dprintf(...)
+#define dbgprintf(...)
/*
* Find all extents which overlap 'n', calculate the space
u64 wstart = n->start;
u64 wlast = n->last;
- dprintf("Count overlaps:");
+ dbgprintf("Count overlaps:");
do {
/*
if (wlast < n->last)
wlast = n->last;
- dprintf(" (%llu, %llu)", n->start, n->last);
+ dbgprintf(" (%llu, %llu)", n->start, n->last);
tmp = n;
n = extent_tree_iter_next(n, wstart, wlast);
free(tmp);
} while (n);
- dprintf("; wstart: %llu wlast: %llu total: %llu\n", wstart,
+ dbgprintf("; wstart: %llu wlast: %llu total: %llu\n", wstart,
wlast, wlast - wstart + 1);
return wlast - wstart + 1;
else if (cmp > 0)
p = &(*p)->rb_right;
else
- BUG();
+ return -EEXIST;
}
si = calloc(1, sizeof(*si));
goto out;
}
- ret = lookup_ino_rootid(fd, &subvol);
+ ret = lookup_path_rootid(fd, &subvol);
if (ret)
goto out_close;
{
int ret = 0, err = 0;
int i;
+ u32 kernel_version;
unit_mode = get_unit_mode_from_arg(&argc, argv, 1);
if (check_argc_min(argc - optind, 1))
usage(cmd_filesystem_du_usage);
+ kernel_version = get_running_kernel_version();
+
+ if (kernel_version < KERNEL_VERSION(2,6,33)) {
+ warning(
+"old kernel version detected, shared space will be reported as exclusive\n"
+"due to missing support for FIEMAP_EXTENT_SHARED flag");
+ }
+
printf("%10s %10s %10s %s\n", "Total", "Exclusive", "Set shared",
"Filename");