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Btrfs-progs: fsck: only allow partial opening under repair mode 

The reason that we allow partial opening is that sometimes,
we may have some corrupted trees.(for example extent tree), for
fsck repair case, the broken tree may be rebuilt later.

So if users only want to do check but not repair anything, this
patch will make fsck return failure as soon as possible and
tell users that some critial roots have been corrupted.

Signed-off-by: Wang Shilong <wangsl.fnst@cn.fujitsu.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
master
Wang Shilong 2014-05-29 17:59:56 +08:00 committed by David Sterba
parent 31aa2b5fa7
commit 8d2abcb6cc
1 changed files with 5 additions and 2 deletions
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7
cmds-check.c
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@ -6821,8 +6821,7 @@ int cmd_check(int argc, char **argv)
int option_index = 0;
int init_csum_tree = 0;
int qgroup_report = 0;
enum btrfs_open_ctree_flags ctree_flags =
OPEN_CTREE_PARTIAL | OPEN_CTREE_EXCLUSIVE;
enum btrfs_open_ctree_flags ctree_flags = OPEN_CTREE_EXCLUSIVE;
while(1) {
int c;
@ -6892,6 +6891,10 @@ int cmd_check(int argc, char **argv)
goto err_out;
}
/* only allow partial opening under repair mode */
if (repair)
ctree_flags |= OPEN_CTREE_PARTIAL;
info = open_ctree_fs_info(argv[optind], bytenr, 0, ctree_flags);
if (!info) {
fprintf(stderr, "Couldn't open file system\n");