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Some user-permission changes to btrfs-progs #762

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Some user-permission changes to btrfs-progs #762

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ea2c8e6
btrfs-progs: receive: make receive fall back on EPERM
sweettea Mar 21, 2024
0cc8c32
btrfs-progs: subvolume-list: use user ino lookup
sweettea Mar 21, 2024
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2 changes: 1 addition & 1 deletion cmds/receive.c
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Original file line number Diff line number Diff line change
Expand Up @@ -1285,7 +1285,7 @@ static int process_encoded_write(const char *path, const void *data, u64 offset,
if (ret >= 0)
return 0;
/* Fall back for these errors, fail hard for anything else. */
if (errno != ENOSPC && errno != ENOTTY && errno != EINVAL) {
if (errno != ENOSPC && errno != ENOTTY && errno != EINVAL && errno != EPERM) {
ret = -errno;
error("encoded_write: writing to %s failed: %m", path);
return ret;
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8 changes: 5 additions & 3 deletions cmds/subvolume-list.c
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Original file line number Diff line number Diff line change
Expand Up @@ -769,7 +769,7 @@ static int resolve_root(struct rb_root *rl, struct root_info *ri,
*/
static int lookup_ino_path(int fd, struct root_info *ri)
{
struct btrfs_ioctl_ino_lookup_args args;
struct btrfs_ioctl_ino_lookup_user_args args;
int ret;

if (ri->path)
Expand All @@ -780,9 +780,9 @@ static int lookup_ino_path(int fd, struct root_info *ri)

memset(&args, 0, sizeof(args));
args.treeid = ri->ref_tree;
args.objectid = ri->dir_id;
args.dirid = ri->dir_id;

ret = ioctl(fd, BTRFS_IOC_INO_LOOKUP, &args);
ret = ioctl(fd, BTRFS_IOC_INO_LOOKUP_USER, &args);
if (ret < 0) {
if (errno == ENOENT) {
ri->ref_tree = 0;
Expand All @@ -792,6 +792,8 @@ static int lookup_ino_path(int fd, struct root_info *ri)
return ret;
}

strcpy(ri->name, args.name);

if (args.name[0]) {
/*
* we're in a subdirectory of ref_tree, the kernel ioctl
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