diff mbox

btrfs-progs: Fix defrag threshold overflow

Message ID 1435155666-11214-1-git-send-email-patrik.lundquist@gmail.com (mailing list archive)
State Accepted
Headers show

Commit Message

Patrik Lundquist June 24, 2015, 2:21 p.m. UTC
btrfs fi defrag -t 1T overflows the u32 thresh variable and default, instead of max, threshold is used.

Signed-off-by: Patrik Lundquist <patrik.lundquist@gmail.com>
---
 cmds-filesystem.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

Comments

David Sterba June 25, 2015, 5:55 p.m. UTC | #1
On Wed, Jun 24, 2015 at 04:21:06PM +0200, Patrik Lundquist wrote:
> btrfs fi defrag -t 1T overflows the u32 thresh variable and default, instead of max, threshold is used.
> 
> Signed-off-by: Patrik Lundquist <patrik.lundquist@gmail.com>

Applied, thanks.
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diff mbox

Patch

diff --git a/cmds-filesystem.c b/cmds-filesystem.c
index 530f815..72bb45b 100644
--- a/cmds-filesystem.c
+++ b/cmds-filesystem.c
@@ -1127,7 +1127,7 @@  static int cmd_defrag(int argc, char **argv)
 	int flush = 0;
 	u64 start = 0;
 	u64 len = (u64)-1;
-	u32 thresh = 0;
+	u64 thresh = 0;
 	int i;
 	int recursive = 0;
 	int ret = 0;
@@ -1186,7 +1186,7 @@  static int cmd_defrag(int argc, char **argv)
 	memset(&defrag_global_range, 0, sizeof(range));
 	defrag_global_range.start = start;
 	defrag_global_range.len = len;
-	defrag_global_range.extent_thresh = thresh;
+	defrag_global_range.extent_thresh = thresh > (u32)-1 ? (u32)-1 : (u32)thresh;
 	if (compress_type) {
 		defrag_global_range.flags |= BTRFS_DEFRAG_RANGE_COMPRESS;
 		defrag_global_range.compress_type = compress_type;