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btrfs-progs: device usage: don't calculate slack on missing device

PATCH In review Patrik Lundquist 2 participants 2 messages Aug 31, 2017 – Sep 4, 2017 Btrfs file system

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Patrik Lundquist

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PATCH 1/1 btrfs-progs: device usage: don't calculate slack on missing device

Print      Device slack:              0.00B
instead of Device slack:           16.00EiB
Signed-off-by Patrik Lundquist <[email protected]>
---
 cmds-fi-usage.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)
cmds-fi-usage.c +2 -1
index 101a0c4..6c846c1 100644
@@ -1040,6 +1040,7 @@ void print_device_sizes(struct device_info *devinfo, unsigned unit_mode)
 		pretty_size_mode(devinfo->device_size, unit_mode));
 	printf("   Device slack: %*s%10s\n",
 		(int)(20 - strlen("Device slack")), "",
-		pretty_size_mode(devinfo->device_size - devinfo->size,
+		pretty_size_mode(devinfo->device_size > 0 ?
+			devinfo->device_size - devinfo->size : 0,
 			unit_mode));
 }
Signature · 1 line
2.14.1