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btrfs-progs: defrag: cleanup temporary errno value 

Rename a single letter variable and move the defintion to the scope of
use.

Signed-off-by: David Sterba <dsterba@suse.com>
master
David Sterba 2016-12-12 18:22:10 +01:00
parent 8e2bd38f29
commit cc0a80b8f2
1 changed files with 5 additions and 4 deletions
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9
cmds-filesystem.c
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@ -1036,7 +1036,6 @@ static int cmd_filesystem_defrag(int argc, char **argv)
int i;
int recursive = 0;
int ret = 0;
int e = 0;
int compress_type = BTRFS_COMPRESS_NONE;
DIR *dirstream;
@ -1112,6 +1111,7 @@ static int cmd_filesystem_defrag(int argc, char **argv)
for (i = optind; i < argc; i++) {
struct stat st;
int defrag_err = 0;
dirstream = NULL;
fd = open_file_or_dir(argv[i], &dirstream);
@ -1148,10 +1148,10 @@ static int cmd_filesystem_defrag(int argc, char **argv)
printf("%s\n", argv[i]);
ret = do_defrag(fd, defrag_global_fancy_ioctl,
&defrag_global_range);
e = errno;
defrag_err = errno;
}
close_file_or_dir(fd, dirstream);
if (ret && e == ENOTTY && defrag_global_fancy_ioctl) {
if (ret && defrag_err == ENOTTY && defrag_global_fancy_ioctl) {
error("defrag range ioctl not "
"supported in this kernel, please try "
"without any options.");
@ -1159,7 +1159,8 @@ static int cmd_filesystem_defrag(int argc, char **argv)
break;
}
if (ret) {
error("defrag failed on %s: %s", argv[i], strerror(e));
error("defrag failed on %s: %s", argv[i],
strerror(defrag_err));
defrag_global_errors++;
}
}