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btrfs-progs: fi du: skip inaccessible files

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Filesystem du command fails and exits when it access file that has
permission denied. But it can continue the command except the files.
This patch prints error message just like /bin/du does and it continues
if it can.

Issue: #421
Reviewed-by: Nikolay Borisov <nborisov@suse.com>
Signed-off-by: Sidong Yang <realwakka@gmail.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
Sidong Yang 2021-11-22 15:54:11 +00:00 committed by David Sterba
parent 9756d90ce3
commit bc2382eff9
1 changed files with 7 additions and 7 deletions
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14
cmds/filesystem-du.c
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@ -403,14 +403,14 @@ static int du_walk_dir(struct du_dir_ctxt *ctxt, struct rb_root *shared_extents)
dirfd(dirstream),
shared_extents, &tot, &shr,
0);
if (ret == -ENOTTY) {
ret = 0;
continue;
} else if (ret) {
if (ret) {
errno = -ret;
fprintf(stderr,
"failed to walk dir/file: %s : %m\n",
entry->d_name);
fprintf(stderr, "cannot access: '%s:' %m\n",
entry->d_name);
if (ret == -ENOTTY || ret == -EACCES) {
ret = 0;
continue;
}
break;
}