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Btrfs-progs: record errno for ioctl DEFRAG_RANGE

Message ID 1366101652-26571-1-git-send-email-bo.li.liu@oracle.com (mailing list archive)
State Accepted, archived
Headers show

Commit Message

Liu Bo April 16, 2013, 8:40 a.m. UTC 
In order to sparse exact error message, we need to record errno here.

Signed-off-by: Liu Bo <bo.li.liu@oracle.com>
---
 cmds-filesystem.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
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Patch

diff --git a/cmds-filesystem.c b/cmds-filesystem.c
index 2210020..3f386e2 100644
--- a/cmds-filesystem.c
+++ b/cmds-filesystem.c
@@ -431,6 +431,7 @@  static int cmd_defrag(int argc, char **argv)
 				close(fd);
 				break;
 			}
+			e = errno;
 		}
 		if (ret) {
 			fprintf(stderr, "ERROR: defrag failed on %s - %s\n",