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btrfs-progs: subvol_uuid_search: return error encoded pointer 

This commit changes subvol_uuid_search() to return an error encoded
pointer on failure.

Signed-off-by: Prasanth K S R <prasanth.ksr@dell.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
Prasanth K S R 2016-12-10 19:17:43 +05:30 committed by David Sterba
parent adc1e90fb4
commit a2f7af94ab
3 changed files with 15 additions and 16 deletions
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10
cmds-receive.c
View File

@ -287,13 +287,13 @@ static int process_snapshot(const char *path, const u8 *uuid, u64 ctransid,
parent_subvol = subvol_uuid_search(&rctx->sus, 0, parent_uuid,
parent_ctransid, NULL,
subvol_search_by_received_uuid);
if (!parent_subvol) {
if (IS_ERR(parent_subvol)) {
parent_subvol = subvol_uuid_search(&rctx->sus, 0, parent_uuid,
parent_ctransid, NULL,
subvol_search_by_uuid);
}
if (!parent_subvol) {
ret = -ENOENT;
if (IS_ERR(parent_subvol)) {
ret = PTR_ERR(parent_subvol);
error("cannot find parent subvolume");
goto out;
}
@ -750,13 +750,13 @@ static int process_clone(const char *path, u64 offset, u64 len,
si = subvol_uuid_search(&rctx->sus, 0, clone_uuid, clone_ctransid,
NULL,
subvol_search_by_received_uuid);
if (!si) {
if (IS_ERR(si)) {
if (memcmp(clone_uuid, rctx->cur_subvol.received_uuid,
BTRFS_UUID_SIZE) == 0) {
/* TODO check generation of extent */
subvol_path = strdup(rctx->cur_subvol_path);
} else {
ret = -ENOENT;
ret = PTR_ERR(si);
error("clone: did not find source subvol");
goto out;
}

19
cmds-send.c
View File

@ -70,8 +70,8 @@ static int get_root_id(struct btrfs_send *sctx, const char *path, u64 *root_id)
si = subvol_uuid_search(&sctx->sus, 0, NULL, 0, path,
subvol_search_by_path);
if (!si)
return -ENOENT;
if (IS_ERR(si))
return PTR_ERR(si);
*root_id = si->root_id;
free(si->path);
free(si);
@ -85,8 +85,8 @@ static struct subvol_info *get_parent(struct btrfs_send *sctx, u64 root_id)
si_tmp = subvol_uuid_search(&sctx->sus, root_id, NULL, 0, NULL,
subvol_search_by_root_id);
if (!si_tmp)
return NULL;
if (IS_ERR(si_tmp))
return si_tmp;
si = subvol_uuid_search(&sctx->sus, 0, si_tmp->parent_uuid, 0, NULL,
subvol_search_by_uuid);
@ -105,8 +105,8 @@ static int find_good_parent(struct btrfs_send *sctx, u64 root_id, u64 *found)
int i;
parent = get_parent(sctx, root_id);
if (!parent) {
ret = -ENOENT;
if (IS_ERR(parent)) {
ret = PTR_ERR(parent);
goto out;
}
@ -122,7 +122,7 @@ static int find_good_parent(struct btrfs_send *sctx, u64 root_id, u64 *found)
s64 tmp;
parent2 = get_parent(sctx, sctx->clone_sources[i]);
if (!parent2)
if (IS_ERR(parent2))
continue;
if (parent2->root_id != parent->root_id) {
free(parent2->path);
@ -136,9 +136,8 @@ static int find_good_parent(struct btrfs_send *sctx, u64 root_id, u64 *found)
parent2 = subvol_uuid_search(&sctx->sus,
sctx->clone_sources[i], NULL, 0, NULL,
subvol_search_by_root_id);
if (!parent2) {
ret = -ENOENT;
if (IS_ERR(parent2)) {
ret = PTR_ERR(parent2);
goto out;
}
tmp = parent2->ctransid - parent->ctransid;

2
send-utils.c
View File

@ -498,7 +498,7 @@ out:
if (ret && info) {
free(info->path);
free(info);
info = NULL;
return ERR_PTR(ret);
}
return info;