-cddca21efc74d10223f6e2e149dfa79eeb67fdce
+ce9293e9d063f7f1a22209f9cc2f5cb7478e886c
#include "libbcachefs/btree_update.h"
#include "libbcachefs/buckets.h"
#include "libbcachefs/dirent.h"
-#include "libbcachefs/fs.h"
+#include "libbcachefs/fs-common.h"
#include "libbcachefs/inode.h"
#include "libbcachefs/io.h"
#include "libbcachefs/replicas.h"
#include "libbcachefs/super.h"
#include "libbcachefs/xattr.h"
+/* XXX cut and pasted from fsck.c */
+#define QSTR(n) { { { .len = strlen(n) } }, .name = n }
+
static char *dev_t_to_path(dev_t dev)
{
char link[PATH_MAX], *p;
ret = bch2_btree_insert(c, BTREE_ID_INODES, &packed.inode.k_i,
NULL, NULL, 0);
if (ret)
- die("error creating file: %s", strerror(-ret));
-}
-
-static void create_dirent(struct bch_fs *c,
- struct bch_inode_unpacked *parent,
- const char *name, u64 inum, mode_t mode)
-{
- struct bch_hash_info parent_hash_info = bch2_hash_info_init(c, parent);
- struct qstr qname = { { { .len = strlen(name), } }, .name = name };
-
- int ret = bch2_dirent_create(c, parent->bi_inum, &parent_hash_info,
- mode_to_type(mode), &qname,
- inum, NULL, BCH_HASH_SET_MUST_CREATE);
- if (ret)
- die("error creating file: %s", strerror(-ret));
-
- if (S_ISDIR(mode))
- parent->bi_nlink++;
+ die("error updating inode: %s", strerror(-ret));
}
static void create_link(struct bch_fs *c,
struct bch_inode_unpacked *parent,
const char *name, u64 inum, mode_t mode)
{
+ struct qstr qstr = QSTR(name);
struct bch_inode_unpacked inode;
- int ret = bch2_inode_find_by_inum(c, inum, &inode);
- if (ret)
- die("error looking up hardlink: %s", strerror(-ret));
- inode.bi_nlink++;
- update_inode(c, &inode);
-
- create_dirent(c, parent, name, inum, mode);
+ int ret = bch2_trans_do(c, NULL, BTREE_INSERT_ATOMIC,
+ bch2_link_trans(&trans, parent->bi_inum,
+ inum, &inode, &qstr));
+ if (ret)
+ die("error creating hardlink: %s", strerror(-ret));
}
static struct bch_inode_unpacked create_file(struct bch_fs *c,
uid_t uid, gid_t gid,
mode_t mode, dev_t rdev)
{
+ struct qstr qstr = QSTR(name);
struct bch_inode_unpacked new_inode;
- int ret;
-
- bch2_inode_init(c, &new_inode, uid, gid, mode, rdev, parent);
- ret = bch2_inode_create(c, &new_inode, BLOCKDEV_INODE_MAX, 0,
- &c->unused_inode_hint);
+ int ret = bch2_trans_do(c, NULL, BTREE_INSERT_ATOMIC,
+ bch2_create_trans(&trans,
+ parent->bi_inum, parent,
+ &new_inode, &qstr,
+ uid, gid, mode, rdev, NULL, NULL));
if (ret)
die("error creating file: %s", strerror(-ret));
- create_dirent(c, parent, name, new_inode.bi_inum, mode);
-
return new_inode;
}
return dirent;
}
-int __bch2_dirent_create(struct btree_trans *trans,
- u64 dir_inum, const struct bch_hash_info *hash_info,
- u8 type, const struct qstr *name, u64 dst_inum,
- int flags)
+int bch2_dirent_create(struct btree_trans *trans,
+ u64 dir_inum, const struct bch_hash_info *hash_info,
+ u8 type, const struct qstr *name, u64 dst_inum,
+ int flags)
{
struct bkey_i_dirent *dirent;
int ret;
dir_inum, &dirent->k_i, flags);
}
-int bch2_dirent_create(struct bch_fs *c, u64 dir_inum,
- const struct bch_hash_info *hash_info,
- u8 type, const struct qstr *name, u64 dst_inum,
- u64 *journal_seq, int flags)
-{
- return bch2_trans_do(c, journal_seq, flags,
- __bch2_dirent_create(&trans, dir_inum, hash_info,
- type, name, dst_inum, flags));
-}
-
static void dirent_copy_target(struct bkey_i_dirent *dst,
struct bkey_s_c_dirent src)
{
dst->v.d_type = src.v->d_type;
}
-static struct bpos bch2_dirent_pos(struct bch_inode_info *inode,
- const struct qstr *name)
-{
- return POS(inode->v.i_ino, bch2_dirent_hash(&inode->ei_str_hash, name));
-}
-
int bch2_dirent_rename(struct btree_trans *trans,
- struct bch_inode_info *src_dir, const struct qstr *src_name,
- struct bch_inode_info *dst_dir, const struct qstr *dst_name,
- enum bch_rename_mode mode)
+ u64 src_dir, struct bch_hash_info *src_hash,
+ u64 dst_dir, struct bch_hash_info *dst_hash,
+ const struct qstr *src_name, u64 *src_inum,
+ const struct qstr *dst_name, u64 *dst_inum,
+ enum bch_rename_mode mode)
{
struct btree_iter *src_iter, *dst_iter;
struct bkey_s_c old_src, old_dst;
struct bkey_i_dirent *new_src = NULL, *new_dst = NULL;
- struct bpos dst_pos = bch2_dirent_pos(dst_dir, dst_name);
+ struct bpos dst_pos =
+ POS(dst_dir, bch2_dirent_hash(dst_hash, dst_name));
int ret;
+ *src_inum = *dst_inum = 0;
+
/*
* Lookup dst:
*
*/
dst_iter = mode == BCH_RENAME
? bch2_hash_hole(trans, bch2_dirent_hash_desc,
- &dst_dir->ei_str_hash,
- dst_dir->v.i_ino, dst_name)
+ dst_hash, dst_dir, dst_name)
: bch2_hash_lookup(trans, bch2_dirent_hash_desc,
- &dst_dir->ei_str_hash,
- dst_dir->v.i_ino, dst_name,
+ dst_hash, dst_dir, dst_name,
BTREE_ITER_INTENT);
if (IS_ERR(dst_iter))
return PTR_ERR(dst_iter);
old_dst = bch2_btree_iter_peek_slot(dst_iter);
+ if (mode != BCH_RENAME)
+ *dst_inum = le64_to_cpu(bkey_s_c_to_dirent(old_dst).v->d_inum);
+
/* Lookup src: */
src_iter = bch2_hash_lookup(trans, bch2_dirent_hash_desc,
- &src_dir->ei_str_hash,
- src_dir->v.i_ino, src_name,
+ src_hash, src_dir, src_name,
BTREE_ITER_INTENT);
if (IS_ERR(src_iter))
return PTR_ERR(src_iter);
old_src = bch2_btree_iter_peek_slot(src_iter);
+ *src_inum = le64_to_cpu(bkey_s_c_to_dirent(old_src).v->d_inum);
/* Create new dst key: */
new_dst = dirent_create_key(trans, 0, dst_name, 0);
} else {
/* Check if we need a whiteout to delete src: */
ret = bch2_hash_needs_whiteout(trans, bch2_dirent_hash_desc,
- &src_dir->ei_str_hash,
- src_iter);
+ src_hash, src_iter);
if (ret < 0)
return ret;
return 0;
}
-int __bch2_dirent_delete(struct btree_trans *trans, u64 dir_inum,
- const struct bch_hash_info *hash_info,
- const struct qstr *name)
+int bch2_dirent_delete_at(struct btree_trans *trans,
+ const struct bch_hash_info *hash_info,
+ struct btree_iter *iter)
{
- return bch2_hash_delete(trans, bch2_dirent_hash_desc, hash_info,
- dir_inum, name);
+ return bch2_hash_delete_at(trans, bch2_dirent_hash_desc,
+ hash_info, iter);
}
int bch2_dirent_delete(struct bch_fs *c, u64 dir_inum,
return bch2_trans_do(c, journal_seq,
BTREE_INSERT_ATOMIC|
BTREE_INSERT_NOFAIL,
- __bch2_dirent_delete(&trans, dir_inum, hash_info, name));
+ bch2_hash_delete(&trans, bch2_dirent_hash_desc, hash_info,
+ dir_inum, name));
+}
+
+struct btree_iter *
+__bch2_dirent_lookup_trans(struct btree_trans *trans, u64 dir_inum,
+ const struct bch_hash_info *hash_info,
+ const struct qstr *name)
+{
+ return bch2_hash_lookup(trans, bch2_dirent_hash_desc,
+ hash_info, dir_inum, name, 0);
}
u64 bch2_dirent_lookup(struct bch_fs *c, u64 dir_inum,
bch2_trans_init(&trans, c, 0, 0);
- iter = bch2_hash_lookup(&trans, bch2_dirent_hash_desc,
- hash_info, dir_inum, name, 0);
+ iter = __bch2_dirent_lookup_trans(&trans, dir_inum, hash_info, name);
if (IS_ERR(iter)) {
BUG_ON(PTR_ERR(iter) == -EINTR);
goto out;
return ret;
}
-int bch2_empty_dir(struct bch_fs *c, u64 dir_inum)
+int bch2_readdir(struct bch_fs *c, u64 inum, struct dir_context *ctx)
{
- return bch2_trans_do(c, NULL, 0,
- bch2_empty_dir_trans(&trans, dir_inum));
-}
-
-int bch2_readdir(struct bch_fs *c, struct file *file,
- struct dir_context *ctx)
-{
- struct bch_inode_info *inode = file_bch_inode(file);
struct btree_trans trans;
struct btree_iter *iter;
struct bkey_s_c k;
unsigned len;
int ret;
- if (!dir_emit_dots(file, ctx))
- return 0;
-
bch2_trans_init(&trans, c, 0, 0);
for_each_btree_key(&trans, iter, BTREE_ID_DIRENTS,
- POS(inode->v.i_ino, ctx->pos), 0, k, ret) {
+ POS(inum, ctx->pos), 0, k, ret) {
if (k.k->type != KEY_TYPE_dirent)
continue;
dirent = bkey_s_c_to_dirent(k);
- if (bkey_cmp(k.k->p, POS(inode->v.i_ino, ctx->pos)) < 0)
+ if (bkey_cmp(k.k->p, POS(inum, ctx->pos)) < 0)
continue;
- if (k.k->p.inode > inode->v.i_ino)
+ if (k.k->p.inode > inum)
break;
len = bch2_dirent_name_bytes(dirent);
sizeof(u64));
}
-int __bch2_dirent_create(struct btree_trans *, u64,
- const struct bch_hash_info *, u8,
- const struct qstr *, u64, int);
-int bch2_dirent_create(struct bch_fs *c, u64, const struct bch_hash_info *,
- u8, const struct qstr *, u64, u64 *, int);
-
-int __bch2_dirent_delete(struct btree_trans *, u64,
- const struct bch_hash_info *,
- const struct qstr *);
+int bch2_dirent_create(struct btree_trans *, u64,
+ const struct bch_hash_info *, u8,
+ const struct qstr *, u64, int);
+
+int bch2_dirent_delete_at(struct btree_trans *,
+ const struct bch_hash_info *,
+ struct btree_iter *);
int bch2_dirent_delete(struct bch_fs *, u64, const struct bch_hash_info *,
const struct qstr *, u64 *);
};
int bch2_dirent_rename(struct btree_trans *,
- struct bch_inode_info *, const struct qstr *,
- struct bch_inode_info *, const struct qstr *,
+ u64, struct bch_hash_info *,
+ u64, struct bch_hash_info *,
+ const struct qstr *, u64 *,
+ const struct qstr *, u64 *,
enum bch_rename_mode);
+struct btree_iter *
+__bch2_dirent_lookup_trans(struct btree_trans *, u64,
+ const struct bch_hash_info *,
+ const struct qstr *);
u64 bch2_dirent_lookup(struct bch_fs *, u64, const struct bch_hash_info *,
const struct qstr *);
int bch2_empty_dir_trans(struct btree_trans *, u64);
-int bch2_empty_dir(struct bch_fs *, u64);
-int bch2_readdir(struct bch_fs *, struct file *, struct dir_context *);
+int bch2_readdir(struct bch_fs *, u64, struct dir_context *);
#endif /* _BCACHEFS_DIRENT_H */
--- /dev/null
+// SPDX-License-Identifier: GPL-2.0
+
+#include "bcachefs.h"
+#include "acl.h"
+#include "btree_update.h"
+#include "dirent.h"
+#include "fs-common.h"
+#include "inode.h"
+#include "xattr.h"
+
+#include <linux/posix_acl.h>
+
+int bch2_create_trans(struct btree_trans *trans, u64 dir_inum,
+ struct bch_inode_unpacked *dir_u,
+ struct bch_inode_unpacked *new_inode,
+ const struct qstr *name,
+ uid_t uid, gid_t gid, umode_t mode, dev_t rdev,
+ struct posix_acl *default_acl,
+ struct posix_acl *acl)
+{
+ struct bch_fs *c = trans->c;
+ struct btree_iter *dir_iter;
+ struct bch_hash_info hash = bch2_hash_info_init(c, new_inode);
+ u64 now = bch2_current_time(trans->c);
+ int ret;
+
+ dir_iter = bch2_inode_peek(trans, dir_u, dir_inum,
+ name ? BTREE_ITER_INTENT : 0);
+ if (IS_ERR(dir_iter))
+ return PTR_ERR(dir_iter);
+
+ bch2_inode_init_late(new_inode, now, uid, gid, mode, rdev, dir_u);
+
+ if (!name)
+ new_inode->bi_flags |= BCH_INODE_UNLINKED;
+
+ ret = bch2_inode_create(trans, new_inode,
+ BLOCKDEV_INODE_MAX, 0,
+ &c->unused_inode_hint);
+ if (ret)
+ return ret;
+
+ if (default_acl) {
+ ret = bch2_set_acl_trans(trans, new_inode, &hash,
+ default_acl, ACL_TYPE_DEFAULT);
+ if (ret)
+ return ret;
+ }
+
+ if (acl) {
+ ret = bch2_set_acl_trans(trans, new_inode, &hash,
+ acl, ACL_TYPE_ACCESS);
+ if (ret)
+ return ret;
+ }
+
+ if (name) {
+ struct bch_hash_info dir_hash = bch2_hash_info_init(c, dir_u);
+ dir_u->bi_mtime = dir_u->bi_ctime = now;
+
+ if (S_ISDIR(new_inode->bi_mode))
+ dir_u->bi_nlink++;
+
+ ret = bch2_inode_write(trans, dir_iter, dir_u);
+ if (ret)
+ return ret;
+
+ ret = bch2_dirent_create(trans, dir_inum, &dir_hash,
+ mode_to_type(new_inode->bi_mode),
+ name, new_inode->bi_inum,
+ BCH_HASH_SET_MUST_CREATE);
+ if (ret)
+ return ret;
+ }
+
+ return 0;
+}
+
+int bch2_link_trans(struct btree_trans *trans,
+ u64 dir_inum,
+ u64 inum, struct bch_inode_unpacked *inode_u,
+ const struct qstr *name)
+{
+ struct btree_iter *dir_iter, *inode_iter;
+ struct bch_inode_unpacked dir_u;
+ struct bch_hash_info dir_hash;
+ u64 now = bch2_current_time(trans->c);
+
+ dir_iter = bch2_inode_peek(trans, &dir_u, dir_inum, 0);
+ if (IS_ERR(dir_iter))
+ return PTR_ERR(dir_iter);
+
+ inode_iter = bch2_inode_peek(trans, inode_u, inum, BTREE_ITER_INTENT);
+ if (IS_ERR(inode_iter))
+ return PTR_ERR(inode_iter);
+
+ dir_hash = bch2_hash_info_init(trans->c, &dir_u);
+
+ inode_u->bi_ctime = now;
+ bch2_inode_nlink_inc(inode_u);
+
+ return bch2_dirent_create(trans, dir_inum, &dir_hash,
+ mode_to_type(inode_u->bi_mode),
+ name, inum, BCH_HASH_SET_MUST_CREATE) ?:
+ bch2_inode_write(trans, inode_iter, inode_u);
+}
+
+int bch2_unlink_trans(struct btree_trans *trans,
+ u64 dir_inum, struct bch_inode_unpacked *dir_u,
+ struct bch_inode_unpacked *inode_u,
+ const struct qstr *name)
+{
+ struct btree_iter *dir_iter, *dirent_iter, *inode_iter;
+ struct bch_hash_info dir_hash;
+ u64 inum, now = bch2_current_time(trans->c);
+ struct bkey_s_c k;
+
+ dir_iter = bch2_inode_peek(trans, dir_u, dir_inum, BTREE_ITER_INTENT);
+ if (IS_ERR(dir_iter))
+ return PTR_ERR(dir_iter);
+
+ dir_hash = bch2_hash_info_init(trans->c, dir_u);
+
+ dirent_iter = __bch2_dirent_lookup_trans(trans, dir_inum,
+ &dir_hash, name);
+ if (IS_ERR(dirent_iter))
+ return PTR_ERR(dirent_iter);
+
+ k = bch2_btree_iter_peek_slot(dirent_iter);
+ inum = le64_to_cpu(bkey_s_c_to_dirent(k).v->d_inum);
+
+ inode_iter = bch2_inode_peek(trans, inode_u, inum, BTREE_ITER_INTENT);
+ if (IS_ERR(inode_iter))
+ return PTR_ERR(inode_iter);
+
+ dir_u->bi_mtime = dir_u->bi_ctime = inode_u->bi_ctime = now;
+ dir_u->bi_nlink -= S_ISDIR(inode_u->bi_mode);
+ bch2_inode_nlink_dec(inode_u);
+
+ return (S_ISDIR(inode_u->bi_mode)
+ ? bch2_empty_dir_trans(trans, inum)
+ : 0) ?:
+ bch2_dirent_delete_at(trans, &dir_hash, dirent_iter) ?:
+ bch2_inode_write(trans, dir_iter, dir_u) ?:
+ bch2_inode_write(trans, inode_iter, inode_u);
+}
+
+bool bch2_reinherit_attrs(struct bch_inode_unpacked *dst_u,
+ struct bch_inode_unpacked *src_u)
+{
+ u64 src, dst;
+ unsigned id;
+ bool ret = false;
+
+ for (id = 0; id < Inode_opt_nr; id++) {
+ if (dst_u->bi_fields_set & (1 << id))
+ continue;
+
+ src = bch2_inode_opt_get(src_u, id);
+ dst = bch2_inode_opt_get(dst_u, id);
+
+ if (src == dst)
+ continue;
+
+ bch2_inode_opt_set(dst_u, id, src);
+ ret = true;
+ }
+
+ return ret;
+}
+
+int bch2_rename_trans(struct btree_trans *trans,
+ u64 src_dir, struct bch_inode_unpacked *src_dir_u,
+ u64 dst_dir, struct bch_inode_unpacked *dst_dir_u,
+ struct bch_inode_unpacked *src_inode_u,
+ struct bch_inode_unpacked *dst_inode_u,
+ const struct qstr *src_name,
+ const struct qstr *dst_name,
+ enum bch_rename_mode mode)
+{
+ struct btree_iter *src_dir_iter, *dst_dir_iter = NULL;
+ struct btree_iter *src_inode_iter, *dst_inode_iter = NULL;
+ struct bch_hash_info src_hash, dst_hash;
+ u64 src_inode, dst_inode, now = bch2_current_time(trans->c);
+ int ret;
+
+ src_dir_iter = bch2_inode_peek(trans, src_dir_u, src_dir,
+ BTREE_ITER_INTENT);
+ if (IS_ERR(src_dir_iter))
+ return PTR_ERR(src_dir_iter);
+
+ src_hash = bch2_hash_info_init(trans->c, src_dir_u);
+
+ if (dst_dir != src_dir) {
+ dst_dir_iter = bch2_inode_peek(trans, dst_dir_u, dst_dir,
+ BTREE_ITER_INTENT);
+ if (IS_ERR(dst_dir_iter))
+ return PTR_ERR(dst_dir_iter);
+
+ dst_hash = bch2_hash_info_init(trans->c, dst_dir_u);
+ } else {
+ dst_dir_u = src_dir_u;
+ dst_hash = src_hash;
+ }
+
+ ret = bch2_dirent_rename(trans,
+ src_dir, &src_hash,
+ dst_dir, &dst_hash,
+ src_name, &src_inode,
+ dst_name, &dst_inode,
+ mode);
+ if (ret)
+ return ret;
+
+ src_inode_iter = bch2_inode_peek(trans, src_inode_u, src_inode,
+ BTREE_ITER_INTENT);
+ if (IS_ERR(src_inode_iter))
+ return PTR_ERR(src_inode_iter);
+
+ if (dst_inode) {
+ dst_inode_iter = bch2_inode_peek(trans, dst_inode_u, dst_inode,
+ BTREE_ITER_INTENT);
+ if (IS_ERR(dst_inode_iter))
+ return PTR_ERR(dst_inode_iter);
+ }
+
+ if (mode == BCH_RENAME_OVERWRITE) {
+ if (S_ISDIR(src_inode_u->bi_mode) !=
+ S_ISDIR(dst_inode_u->bi_mode))
+ return -ENOTDIR;
+
+ if (S_ISDIR(dst_inode_u->bi_mode) &&
+ bch2_empty_dir_trans(trans, dst_inode))
+ return -ENOTEMPTY;
+ }
+
+ if (bch2_reinherit_attrs(src_inode_u, dst_dir_u) &&
+ S_ISDIR(src_inode_u->bi_mode))
+ return -EXDEV;
+
+ if (mode == BCH_RENAME_EXCHANGE &&
+ bch2_reinherit_attrs(dst_inode_u, src_dir_u) &&
+ S_ISDIR(dst_inode_u->bi_mode))
+ return -EXDEV;
+
+ if (S_ISDIR(src_inode_u->bi_mode)) {
+ src_dir_u->bi_nlink--;
+ dst_dir_u->bi_nlink++;
+ }
+
+ if (dst_inode && S_ISDIR(dst_inode_u->bi_mode)) {
+ dst_dir_u->bi_nlink--;
+ src_dir_u->bi_nlink += mode == BCH_RENAME_EXCHANGE;
+ }
+
+ if (mode == BCH_RENAME_OVERWRITE)
+ bch2_inode_nlink_dec(dst_inode_u);
+
+ src_dir_u->bi_mtime = now;
+ src_dir_u->bi_ctime = now;
+
+ if (src_dir != dst_dir) {
+ dst_dir_u->bi_mtime = now;
+ dst_dir_u->bi_ctime = now;
+ }
+
+ src_inode_u->bi_ctime = now;
+
+ if (dst_inode)
+ dst_inode_u->bi_ctime = now;
+
+ return bch2_inode_write(trans, src_dir_iter, src_dir_u) ?:
+ (src_dir != dst_dir
+ ? bch2_inode_write(trans, dst_dir_iter, dst_dir_u)
+ : 0 ) ?:
+ bch2_inode_write(trans, src_inode_iter, src_inode_u) ?:
+ (dst_inode
+ ? bch2_inode_write(trans, dst_inode_iter, dst_inode_u)
+ : 0 );
+}
--- /dev/null
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _BCACHEFS_FS_COMMON_H
+#define _BCACHEFS_FS_COMMON_H
+
+struct posix_acl;
+
+int bch2_create_trans(struct btree_trans *, u64,
+ struct bch_inode_unpacked *,
+ struct bch_inode_unpacked *,
+ const struct qstr *,
+ uid_t, gid_t, umode_t, dev_t,
+ struct posix_acl *,
+ struct posix_acl *);
+
+int bch2_link_trans(struct btree_trans *,
+ u64,
+ u64, struct bch_inode_unpacked *,
+ const struct qstr *);
+
+int bch2_unlink_trans(struct btree_trans *,
+ u64, struct bch_inode_unpacked *,
+ struct bch_inode_unpacked *,
+ const struct qstr *);
+
+int bch2_rename_trans(struct btree_trans *,
+ u64, struct bch_inode_unpacked *,
+ u64, struct bch_inode_unpacked *,
+ struct bch_inode_unpacked *,
+ struct bch_inode_unpacked *,
+ const struct qstr *,
+ const struct qstr *,
+ enum bch_rename_mode);
+
+bool bch2_reinherit_attrs(struct bch_inode_unpacked *,
+ struct bch_inode_unpacked *);
+
+#endif /* _BCACHEFS_FS_COMMON_H */
#include "chardev.h"
#include "dirent.h"
#include "fs.h"
+#include "fs-common.h"
#include "fs-ioctl.h"
#include "quota.h"
return ret;
}
+static int bch2_reinherit_attrs_fn(struct bch_inode_info *inode,
+ struct bch_inode_unpacked *bi,
+ void *p)
+{
+ struct bch_inode_info *dir = p;
+
+ return !bch2_reinherit_attrs(bi, &dir->ei_inode);
+}
+
static int bch2_ioc_reinherit_attrs(struct bch_fs *c,
struct file *file,
struct bch_inode_info *src,
#include "dirent.h"
#include "extents.h"
#include "fs.h"
+#include "fs-common.h"
#include "fs-io.h"
#include "fs-ioctl.h"
#include "fsck.h"
bch2_inode_flags_to_vfs(inode);
}
-int __must_check bch2_write_inode_trans(struct btree_trans *trans,
- struct bch_inode_info *inode,
- struct bch_inode_unpacked *inode_u,
- inode_set_fn set,
- void *p)
-{
- struct btree_iter *iter = NULL;
- int ret = 0;
-
- iter = bch2_inode_peek(trans, inode_u, inode->v.i_ino,
- BTREE_ITER_INTENT);
- ret = PTR_ERR_OR_ZERO(iter);
- if (ret)
- return ret;
-
- ret = set ? set(inode, inode_u, p) : 0;
- if (ret)
- return ret;
-
- return bch2_inode_write(trans, iter, inode_u);
-}
-
int __must_check bch2_write_inode(struct bch_fs *c,
struct bch_inode_info *inode,
inode_set_fn set,
void *p, unsigned fields)
{
struct btree_trans trans;
+ struct btree_iter *iter;
struct bch_inode_unpacked inode_u;
int ret;
retry:
bch2_trans_begin(&trans);
- ret = bch2_write_inode_trans(&trans, inode, &inode_u, set, p) ?:
+ iter = bch2_inode_peek(&trans, &inode_u, inode->v.i_ino,
+ BTREE_ITER_INTENT);
+ ret = PTR_ERR_OR_ZERO(iter) ?:
+ (set ? set(inode, &inode_u, p) : 0) ?:
+ bch2_inode_write(&trans, iter, &inode_u) ?:
bch2_trans_commit(&trans, NULL,
&inode->ei_journal_seq,
BTREE_INSERT_ATOMIC|
return ret;
}
-int bch2_reinherit_attrs_fn(struct bch_inode_info *inode,
- struct bch_inode_unpacked *bi,
- void *p)
-{
- struct bch_inode_info *dir = p;
- u64 src, dst;
- unsigned id;
- int ret = 1;
-
- for (id = 0; id < Inode_opt_nr; id++) {
- if (bi->bi_fields_set & (1 << id))
- continue;
-
- src = bch2_inode_opt_get(&dir->ei_inode, id);
- dst = bch2_inode_opt_get(bi, id);
-
- if (src == dst)
- continue;
-
- bch2_inode_opt_set(bi, id, src);
- ret = 0;
- }
-
- return ret;
-}
-
struct inode *bch2_vfs_inode_get(struct bch_fs *c, u64 inum)
{
struct bch_inode_unpacked inode_u;
return &inode->v;
}
-static void bch2_inode_init_owner(struct bch_inode_unpacked *inode_u,
- const struct inode *dir, umode_t mode)
-{
- kuid_t uid = current_fsuid();
- kgid_t gid;
-
- if (dir && dir->i_mode & S_ISGID) {
- gid = dir->i_gid;
- if (S_ISDIR(mode))
- mode |= S_ISGID;
- } else
- gid = current_fsgid();
-
- inode_u->bi_uid = from_kuid(dir->i_sb->s_user_ns, uid);
- inode_u->bi_gid = from_kgid(dir->i_sb->s_user_ns, gid);
- inode_u->bi_mode = mode;
-}
-
-static int inode_update_for_create_fn(struct bch_inode_info *inode,
- struct bch_inode_unpacked *bi,
- void *p)
-{
- struct bch_fs *c = inode->v.i_sb->s_fs_info;
- struct bch_inode_unpacked *new_inode = p;
-
- bi->bi_mtime = bi->bi_ctime = bch2_current_time(c);
-
- if (S_ISDIR(new_inode->bi_mode))
- bi->bi_nlink++;
-
- return 0;
-}
-
static struct bch_inode_info *
__bch2_create(struct bch_inode_info *dir, struct dentry *dentry,
umode_t mode, dev_t rdev, bool tmpfile)
{
struct bch_fs *c = dir->v.i_sb->s_fs_info;
+ struct user_namespace *ns = dir->v.i_sb->s_user_ns;
struct btree_trans trans;
struct bch_inode_unpacked dir_u;
struct bch_inode_info *inode, *old;
struct bch_inode_unpacked inode_u;
- struct bch_hash_info hash_info;
struct posix_acl *default_acl = NULL, *acl = NULL;
u64 journal_seq = 0;
int ret;
- bch2_inode_init(c, &inode_u, 0, 0, 0, rdev, &dir->ei_inode);
- bch2_inode_init_owner(&inode_u, &dir->v, mode);
-
- hash_info = bch2_hash_info_init(c, &inode_u);
-
- if (tmpfile)
- inode_u.bi_flags |= BCH_INODE_UNLINKED;
-
- ret = bch2_quota_acct(c, bch_qid(&inode_u), Q_INO, 1,
- KEY_TYPE_QUOTA_PREALLOC);
- if (ret)
- return ERR_PTR(ret);
-
+ /*
+ * preallocate acls + vfs inode before btree transaction, so that
+ * nothing can fail after the transaction succeeds:
+ */
#ifdef CONFIG_BCACHEFS_POSIX_ACL
- ret = posix_acl_create(&dir->v, &inode_u.bi_mode, &default_acl, &acl);
+ ret = posix_acl_create(&dir->v, &mode, &default_acl, &acl);
if (ret)
- goto err;
+ return ERR_PTR(ret);
#endif
-
- /*
- * preallocate vfs inode before btree transaction, so that nothing can
- * fail after the transaction succeeds:
- */
inode = to_bch_ei(new_inode(c->vfs_sb));
if (unlikely(!inode)) {
- ret = -ENOMEM;
+ inode = ERR_PTR(-ENOMEM);
goto err;
}
+ bch2_inode_init_early(c, &inode_u);
+
if (!tmpfile)
mutex_lock(&dir->ei_update_lock);
retry:
bch2_trans_begin(&trans);
- ret = __bch2_inode_create(&trans, &inode_u,
- BLOCKDEV_INODE_MAX, 0,
- &c->unused_inode_hint) ?:
- (default_acl
- ? bch2_set_acl_trans(&trans, &inode_u, &hash_info,
- default_acl, ACL_TYPE_DEFAULT)
- : 0) ?:
- (acl
- ? bch2_set_acl_trans(&trans, &inode_u, &hash_info,
- acl, ACL_TYPE_ACCESS)
- : 0) ?:
- (!tmpfile
- ? __bch2_dirent_create(&trans, dir->v.i_ino,
- &dir->ei_str_hash,
- mode_to_type(mode),
- &dentry->d_name,
- inode_u.bi_inum,
- BCH_HASH_SET_MUST_CREATE)
- : 0) ?:
- (!tmpfile
- ? bch2_write_inode_trans(&trans, dir, &dir_u,
- inode_update_for_create_fn,
- &inode_u)
- : 0) ?:
- bch2_trans_commit(&trans, NULL,
- &journal_seq,
+ ret = bch2_create_trans(&trans, dir->v.i_ino, &dir_u, &inode_u,
+ !tmpfile ? &dentry->d_name : NULL,
+ from_kuid(ns, current_fsuid()),
+ from_kgid(ns, current_fsgid()),
+ mode, rdev,
+ default_acl, acl) ?:
+ bch2_quota_acct(c, bch_qid(&inode_u), Q_INO, 1,
+ KEY_TYPE_QUOTA_PREALLOC);
+ if (unlikely(ret))
+ goto err_before_quota;
+
+ ret = bch2_trans_commit(&trans, NULL, &journal_seq,
BTREE_INSERT_ATOMIC|
BTREE_INSERT_NOUNLOCK);
- if (ret == -EINTR)
- goto retry;
- if (unlikely(ret))
+ if (unlikely(ret)) {
+ bch2_quota_acct(c, bch_qid(&inode_u), Q_INO, -1,
+ KEY_TYPE_QUOTA_WARN);
+err_before_quota:
+ if (ret == -EINTR)
+ goto retry;
goto err_trans;
+ }
if (!tmpfile) {
bch2_inode_update_after_write(c, dir, &dir_u,
* We raced, another process pulled the new inode into cache
* before us:
*/
- old->ei_journal_seq = inode->ei_journal_seq;
+ journal_seq_copy(old, journal_seq);
make_bad_inode(&inode->v);
iput(&inode->v);
}
bch2_trans_exit(&trans);
-out:
+err:
posix_acl_release(default_acl);
posix_acl_release(acl);
return inode;
bch2_trans_exit(&trans);
make_bad_inode(&inode->v);
iput(&inode->v);
-err:
- bch2_quota_acct(c, bch_qid(&inode_u), Q_INO, -1, KEY_TYPE_QUOTA_WARN);
inode = ERR_PTR(ret);
- goto out;
+ goto err;
}
/* methods */
struct dentry *dentry)
{
struct btree_trans trans;
- struct btree_iter *inode_iter;
struct bch_inode_unpacked inode_u;
int ret;
mutex_lock(&inode->ei_update_lock);
bch2_trans_init(&trans, c, 4, 1024);
-retry:
- bch2_trans_begin(&trans);
- ret = __bch2_dirent_create(&trans, dir->v.i_ino,
- &dir->ei_str_hash,
- mode_to_type(inode->v.i_mode),
- &dentry->d_name,
- inode->v.i_ino,
- BCH_HASH_SET_MUST_CREATE);
- if (ret)
- goto err;
- inode_iter = bch2_inode_peek(&trans, &inode_u, inode->v.i_ino,
- BTREE_ITER_INTENT);
- ret = PTR_ERR_OR_ZERO(inode_iter);
- if (ret)
- goto err;
-
- inode_u.bi_ctime = bch2_current_time(c);
- bch2_inode_nlink_inc(&inode_u);
-
- ret = bch2_inode_write(&trans, inode_iter, &inode_u) ?:
- bch2_trans_commit(&trans, NULL,
- &inode->ei_journal_seq,
- BTREE_INSERT_ATOMIC|
- BTREE_INSERT_NOUNLOCK);
-err:
- if (ret == -EINTR)
- goto retry;
+ do {
+ bch2_trans_begin(&trans);
+ ret = bch2_link_trans(&trans,
+ dir->v.i_ino,
+ inode->v.i_ino, &inode_u,
+ &dentry->d_name) ?:
+ bch2_trans_commit(&trans, NULL,
+ &inode->ei_journal_seq,
+ BTREE_INSERT_ATOMIC|
+ BTREE_INSERT_NOUNLOCK);
+ } while (ret == -EINTR);
if (likely(!ret))
bch2_inode_update_after_write(c, inode, &inode_u, ATTR_CTIME);
struct bch_fs *c = vdir->i_sb->s_fs_info;
struct bch_inode_info *dir = to_bch_ei(vdir);
struct bch_inode_info *inode = to_bch_ei(dentry->d_inode);
- struct btree_iter *dir_iter, *inode_iter;
struct bch_inode_unpacked dir_u, inode_u;
struct btree_trans trans;
int ret;
bch2_lock_inodes(INODE_UPDATE_LOCK, dir, inode);
bch2_trans_init(&trans, c, 4, 1024);
-retry:
- bch2_trans_begin(&trans);
-
- ret = __bch2_dirent_delete(&trans, dir->v.i_ino,
- &dir->ei_str_hash,
- &dentry->d_name);
- if (ret)
- goto btree_err;
-
- dir_iter = bch2_inode_peek(&trans, &dir_u, dir->v.i_ino,
- BTREE_ITER_INTENT);
- ret = PTR_ERR_OR_ZERO(dir_iter);
- if (ret)
- goto btree_err;
-
- inode_iter = bch2_inode_peek(&trans, &inode_u, inode->v.i_ino,
- BTREE_ITER_INTENT);
- ret = PTR_ERR_OR_ZERO(inode_iter);
- if (ret)
- goto btree_err;
-
- dir_u.bi_mtime = dir_u.bi_ctime = inode_u.bi_ctime =
- bch2_current_time(c);
-
- dir_u.bi_nlink -= S_ISDIR(inode_u.bi_mode);
- bch2_inode_nlink_dec(&inode_u);
- ret = bch2_inode_write(&trans, dir_iter, &dir_u) ?:
- bch2_inode_write(&trans, inode_iter, &inode_u) ?:
- bch2_trans_commit(&trans, NULL,
- &dir->ei_journal_seq,
- BTREE_INSERT_ATOMIC|
- BTREE_INSERT_NOUNLOCK|
- BTREE_INSERT_NOFAIL);
-btree_err:
- if (ret == -EINTR)
- goto retry;
- if (ret)
- goto err;
-
- journal_seq_copy(inode, dir->ei_journal_seq);
+ do {
+ bch2_trans_begin(&trans);
+
+ ret = bch2_unlink_trans(&trans,
+ dir->v.i_ino, &dir_u,
+ &inode_u, &dentry->d_name) ?:
+ bch2_trans_commit(&trans, NULL,
+ &dir->ei_journal_seq,
+ BTREE_INSERT_ATOMIC|
+ BTREE_INSERT_NOUNLOCK|
+ BTREE_INSERT_NOFAIL);
+ } while (ret == -EINTR);
+
+ if (likely(!ret)) {
+ BUG_ON(inode_u.bi_inum != inode->v.i_ino);
+
+ journal_seq_copy(inode, dir->ei_journal_seq);
+ bch2_inode_update_after_write(c, dir, &dir_u,
+ ATTR_MTIME|ATTR_CTIME);
+ bch2_inode_update_after_write(c, inode, &inode_u,
+ ATTR_MTIME);
+ }
- bch2_inode_update_after_write(c, dir, &dir_u,
- ATTR_MTIME|ATTR_CTIME);
- bch2_inode_update_after_write(c, inode, &inode_u,
- ATTR_MTIME);
-err:
bch2_trans_exit(&trans);
bch2_unlock_inodes(INODE_UPDATE_LOCK, dir, inode);
static int bch2_rmdir(struct inode *vdir, struct dentry *dentry)
{
- struct bch_fs *c = vdir->i_sb->s_fs_info;
-
- if (bch2_empty_dir(c, dentry->d_inode->i_ino))
- return -ENOTEMPTY;
-
return bch2_unlink(vdir, dentry);
}
return 0;
}
-struct rename_info {
- u64 now;
- struct bch_inode_info *src_dir;
- struct bch_inode_info *dst_dir;
- struct bch_inode_info *src_inode;
- struct bch_inode_info *dst_inode;
- enum bch_rename_mode mode;
-};
-
-static int inode_update_for_rename_fn(struct bch_inode_info *inode,
- struct bch_inode_unpacked *bi,
- void *p)
-{
- struct rename_info *info = p;
- int ret;
-
- if (inode == info->src_dir) {
- bi->bi_nlink -= S_ISDIR(info->src_inode->v.i_mode);
- bi->bi_nlink += info->dst_inode &&
- S_ISDIR(info->dst_inode->v.i_mode) &&
- info->mode == BCH_RENAME_EXCHANGE;
- }
-
- if (inode == info->dst_dir) {
- bi->bi_nlink += S_ISDIR(info->src_inode->v.i_mode);
- bi->bi_nlink -= info->dst_inode &&
- S_ISDIR(info->dst_inode->v.i_mode);
- }
-
- if (inode == info->src_inode) {
- ret = bch2_reinherit_attrs_fn(inode, bi, info->dst_dir);
-
- BUG_ON(!ret && S_ISDIR(info->src_inode->v.i_mode));
- }
-
- if (inode == info->dst_inode &&
- info->mode == BCH_RENAME_EXCHANGE) {
- ret = bch2_reinherit_attrs_fn(inode, bi, info->src_dir);
-
- BUG_ON(!ret && S_ISDIR(info->dst_inode->v.i_mode));
- }
-
- if (inode == info->dst_inode &&
- info->mode == BCH_RENAME_OVERWRITE) {
- BUG_ON(bi->bi_nlink &&
- S_ISDIR(info->dst_inode->v.i_mode));
-
- bch2_inode_nlink_dec(bi);
- }
-
- if (inode == info->src_dir ||
- inode == info->dst_dir)
- bi->bi_mtime = info->now;
- bi->bi_ctime = info->now;
-
- return 0;
-}
-
static int bch2_rename2(struct inode *src_vdir, struct dentry *src_dentry,
struct inode *dst_vdir, struct dentry *dst_dentry,
unsigned flags)
{
struct bch_fs *c = src_vdir->i_sb->s_fs_info;
- struct rename_info i = {
- .src_dir = to_bch_ei(src_vdir),
- .dst_dir = to_bch_ei(dst_vdir),
- .src_inode = to_bch_ei(src_dentry->d_inode),
- .dst_inode = to_bch_ei(dst_dentry->d_inode),
- .mode = flags & RENAME_EXCHANGE
- ? BCH_RENAME_EXCHANGE
- : dst_dentry->d_inode
- ? BCH_RENAME_OVERWRITE : BCH_RENAME,
- };
- struct btree_trans trans;
+ struct bch_inode_info *src_dir = to_bch_ei(src_vdir);
+ struct bch_inode_info *dst_dir = to_bch_ei(dst_vdir);
+ struct bch_inode_info *src_inode = to_bch_ei(src_dentry->d_inode);
+ struct bch_inode_info *dst_inode = to_bch_ei(dst_dentry->d_inode);
struct bch_inode_unpacked dst_dir_u, src_dir_u;
struct bch_inode_unpacked src_inode_u, dst_inode_u;
+ struct btree_trans trans;
+ enum bch_rename_mode mode = flags & RENAME_EXCHANGE
+ ? BCH_RENAME_EXCHANGE
+ : dst_dentry->d_inode
+ ? BCH_RENAME_OVERWRITE : BCH_RENAME;
u64 journal_seq = 0;
int ret;
if (flags & ~(RENAME_NOREPLACE|RENAME_EXCHANGE))
return -EINVAL;
- if (i.mode == BCH_RENAME_OVERWRITE) {
- if (S_ISDIR(i.src_inode->v.i_mode) !=
- S_ISDIR(i.dst_inode->v.i_mode))
- return -ENOTDIR;
-
- if (S_ISDIR(i.src_inode->v.i_mode) &&
- bch2_empty_dir(c, i.dst_inode->v.i_ino))
- return -ENOTEMPTY;
-
- ret = filemap_write_and_wait_range(i.src_inode->v.i_mapping,
+ if (mode == BCH_RENAME_OVERWRITE) {
+ ret = filemap_write_and_wait_range(src_inode->v.i_mapping,
0, LLONG_MAX);
if (ret)
return ret;
bch2_trans_init(&trans, c, 8, 2048);
bch2_lock_inodes(INODE_UPDATE_LOCK,
- i.src_dir,
- i.dst_dir,
- i.src_inode,
- i.dst_inode);
-
- if (S_ISDIR(i.src_inode->v.i_mode) &&
- inode_attrs_changing(i.dst_dir, i.src_inode)) {
- ret = -EXDEV;
- goto err;
- }
-
- if (i.mode == BCH_RENAME_EXCHANGE &&
- S_ISDIR(i.dst_inode->v.i_mode) &&
- inode_attrs_changing(i.src_dir, i.dst_inode)) {
- ret = -EXDEV;
- goto err;
- }
-
- if (inode_attr_changing(i.dst_dir, i.src_inode, Inode_opt_project)) {
- ret = bch2_fs_quota_transfer(c, i.src_inode,
- i.dst_dir->ei_qid,
+ src_dir,
+ dst_dir,
+ src_inode,
+ dst_inode);
+
+ if (inode_attr_changing(dst_dir, src_inode, Inode_opt_project)) {
+ ret = bch2_fs_quota_transfer(c, src_inode,
+ dst_dir->ei_qid,
1 << QTYP_PRJ,
KEY_TYPE_QUOTA_PREALLOC);
if (ret)
goto err;
}
- if (i.mode == BCH_RENAME_EXCHANGE &&
- inode_attr_changing(i.src_dir, i.dst_inode, Inode_opt_project)) {
- ret = bch2_fs_quota_transfer(c, i.dst_inode,
- i.src_dir->ei_qid,
+ if (mode == BCH_RENAME_EXCHANGE &&
+ inode_attr_changing(src_dir, dst_inode, Inode_opt_project)) {
+ ret = bch2_fs_quota_transfer(c, dst_inode,
+ src_dir->ei_qid,
1 << QTYP_PRJ,
KEY_TYPE_QUOTA_PREALLOC);
if (ret)
retry:
bch2_trans_begin(&trans);
- i.now = bch2_current_time(c);
-
- ret = bch2_dirent_rename(&trans,
- i.src_dir, &src_dentry->d_name,
- i.dst_dir, &dst_dentry->d_name,
- i.mode) ?:
- bch2_write_inode_trans(&trans, i.src_dir, &src_dir_u,
- inode_update_for_rename_fn, &i) ?:
- (i.src_dir != i.dst_dir
- ? bch2_write_inode_trans(&trans, i.dst_dir, &dst_dir_u,
- inode_update_for_rename_fn, &i)
- : 0 ) ?:
- bch2_write_inode_trans(&trans, i.src_inode, &src_inode_u,
- inode_update_for_rename_fn, &i) ?:
- (i.dst_inode
- ? bch2_write_inode_trans(&trans, i.dst_inode, &dst_inode_u,
- inode_update_for_rename_fn, &i)
- : 0 ) ?:
+ ret = bch2_rename_trans(&trans,
+ src_dir->v.i_ino, &src_dir_u,
+ dst_dir->v.i_ino, &dst_dir_u,
+ &src_inode_u,
+ &dst_inode_u,
+ &src_dentry->d_name,
+ &dst_dentry->d_name,
+ mode) ?:
bch2_trans_commit(&trans, NULL,
&journal_seq,
BTREE_INSERT_ATOMIC|
if (unlikely(ret))
goto err;
- bch2_inode_update_after_write(c, i.src_dir, &src_dir_u,
+ BUG_ON(src_inode->v.i_ino != src_inode_u.bi_inum);
+ BUG_ON(dst_inode &&
+ dst_inode->v.i_ino != dst_inode_u.bi_inum);
+
+ bch2_inode_update_after_write(c, src_dir, &src_dir_u,
ATTR_MTIME|ATTR_CTIME);
- journal_seq_copy(i.src_dir, journal_seq);
+ journal_seq_copy(src_dir, journal_seq);
- if (i.src_dir != i.dst_dir) {
- bch2_inode_update_after_write(c, i.dst_dir, &dst_dir_u,
+ if (src_dir != dst_dir) {
+ bch2_inode_update_after_write(c, dst_dir, &dst_dir_u,
ATTR_MTIME|ATTR_CTIME);
- journal_seq_copy(i.dst_dir, journal_seq);
+ journal_seq_copy(dst_dir, journal_seq);
}
- journal_seq_copy(i.src_inode, journal_seq);
- if (i.dst_inode)
- journal_seq_copy(i.dst_inode, journal_seq);
-
- bch2_inode_update_after_write(c, i.src_inode, &src_inode_u,
+ bch2_inode_update_after_write(c, src_inode, &src_inode_u,
ATTR_CTIME);
- if (i.dst_inode)
- bch2_inode_update_after_write(c, i.dst_inode, &dst_inode_u,
+ journal_seq_copy(src_inode, journal_seq);
+
+ if (dst_inode) {
+ bch2_inode_update_after_write(c, dst_inode, &dst_inode_u,
ATTR_CTIME);
+ journal_seq_copy(dst_inode, journal_seq);
+ }
err:
bch2_trans_exit(&trans);
- bch2_fs_quota_transfer(c, i.src_inode,
- bch_qid(&i.src_inode->ei_inode),
+ bch2_fs_quota_transfer(c, src_inode,
+ bch_qid(&src_inode->ei_inode),
1 << QTYP_PRJ,
KEY_TYPE_QUOTA_NOCHECK);
- if (i.dst_inode)
- bch2_fs_quota_transfer(c, i.dst_inode,
- bch_qid(&i.dst_inode->ei_inode),
+ if (dst_inode)
+ bch2_fs_quota_transfer(c, dst_inode,
+ bch_qid(&dst_inode->ei_inode),
1 << QTYP_PRJ,
KEY_TYPE_QUOTA_NOCHECK);
bch2_unlock_inodes(INODE_UPDATE_LOCK,
- i.src_dir,
- i.dst_dir,
- i.src_inode,
- i.dst_inode);
+ src_dir,
+ dst_dir,
+ src_inode,
+ dst_inode);
return ret;
}
static int bch2_vfs_readdir(struct file *file, struct dir_context *ctx)
{
- struct bch_fs *c = file_inode(file)->i_sb->s_fs_info;
+ struct bch_inode_info *inode = file_bch_inode(file);
+ struct bch_fs *c = inode->v.i_sb->s_fs_info;
+
+ if (!dir_emit_dots(file, ctx))
+ return 0;
- return bch2_readdir(c, file, ctx);
+ return bch2_readdir(c, inode->v.i_ino, ctx);
}
static const struct file_operations bch_file_operations = {
return to_bch_ei(file_inode(file));
}
-static inline u8 mode_to_type(umode_t mode)
-{
- return (mode >> 12) & 15;
-}
-
static inline bool inode_attr_changing(struct bch_inode_info *dir,
struct bch_inode_info *inode,
enum inode_opt_id id)
struct bch_inode_info *,
struct bch_inode_unpacked *,
unsigned);
-int __must_check bch2_write_inode_trans(struct btree_trans *,
- struct bch_inode_info *,
- struct bch_inode_unpacked *,
- inode_set_fn, void *);
int __must_check bch2_write_inode(struct bch_fs *, struct bch_inode_info *,
inode_set_fn, void *, unsigned);
-int bch2_reinherit_attrs_fn(struct bch_inode_info *,
- struct bch_inode_unpacked *,
- void *);
-
void bch2_vfs_exit(void);
int bch2_vfs_init(void);
#include "btree_update.h"
#include "dirent.h"
#include "error.h"
-#include "fs.h"
+#include "fs-common.h"
#include "fsck.h"
#include "inode.h"
#include "keylist.h"
struct bch_inode_unpacked *lostfound_inode,
u64 inum)
{
- struct bch_hash_info lostfound_hash_info =
- bch2_hash_info_init(c, lostfound_inode);
- struct bkey_inode_buf packed;
+ struct bch_inode_unpacked inode_u;
char name_buf[20];
struct qstr name;
int ret;
snprintf(name_buf, sizeof(name_buf), "%llu", inum);
name = (struct qstr) QSTR(name_buf);
- lostfound_inode->bi_nlink++;
-
- bch2_inode_pack(&packed, lostfound_inode);
-
- ret = bch2_btree_insert(c, BTREE_ID_INODES, &packed.inode.k_i,
- NULL, NULL,
- BTREE_INSERT_NOFAIL|
- BTREE_INSERT_LAZY_RW);
- if (ret) {
- bch_err(c, "error %i reattaching inode %llu while updating lost+found",
- ret, inum);
- return ret;
- }
+ ret = bch2_trans_do(c, NULL,
+ BTREE_INSERT_ATOMIC|
+ BTREE_INSERT_LAZY_RW,
+ bch2_link_trans(&trans, lostfound_inode->bi_inum,
+ inum, &inode_u, &name));
+ if (ret)
+ bch_err(c, "error %i reattaching inode %llu", ret, inum);
- ret = bch2_dirent_create(c, lostfound_inode->bi_inum,
- &lostfound_hash_info,
- DT_DIR, &name, inum, NULL,
- BTREE_INSERT_NOFAIL|
- BTREE_INSERT_LAZY_RW);
- if (ret) {
- bch_err(c, "error %i reattaching inode %llu while creating new dirent",
- ret, inum);
- return ret;
- }
return ret;
}
fsck_err:
return ret;
create_root:
- bch2_inode_init(c, root_inode, 0, 0, S_IFDIR|S_IRWXU|S_IRUGO|S_IXUGO,
+ bch2_inode_init(c, root_inode, 0, 0, S_IFDIR|0755,
0, NULL);
root_inode->bi_inum = BCACHEFS_ROOT_INO;
struct qstr lostfound = QSTR("lost+found");
struct bch_hash_info root_hash_info =
bch2_hash_info_init(c, root_inode);
- struct bkey_inode_buf packed;
u64 inum;
int ret;
fsck_err:
return ret;
create_lostfound:
- root_inode->bi_nlink++;
-
- bch2_inode_pack(&packed, root_inode);
-
- ret = bch2_btree_insert(c, BTREE_ID_INODES, &packed.inode.k_i,
- NULL, NULL,
- BTREE_INSERT_NOFAIL|
- BTREE_INSERT_LAZY_RW);
- if (ret)
- return ret;
-
- bch2_inode_init(c, lostfound_inode, 0, 0, S_IFDIR|S_IRWXU|S_IRUGO|S_IXUGO,
- 0, root_inode);
-
- ret = bch2_inode_create(c, lostfound_inode, BLOCKDEV_INODE_MAX, 0,
- &c->unused_inode_hint);
+ bch2_inode_init_early(c, lostfound_inode);
+
+ ret = bch2_trans_do(c, NULL,
+ BTREE_INSERT_ATOMIC|
+ BTREE_INSERT_NOFAIL|
+ BTREE_INSERT_LAZY_RW,
+ bch2_create_trans(&trans,
+ BCACHEFS_ROOT_INO, root_inode,
+ lostfound_inode, &lostfound,
+ 0, 0, S_IFDIR|0755, 0, NULL, NULL));
if (ret)
- return ret;
-
- ret = bch2_dirent_create(c, BCACHEFS_ROOT_INO, &root_hash_info, DT_DIR,
- &lostfound, lostfound_inode->bi_inum, NULL,
- BTREE_INSERT_NOFAIL|
- BTREE_INSERT_LAZY_RW);
- if (ret)
- return ret;
+ bch_err(c, "error creating lost+found: %i", ret);
- return 0;
+ return ret;
}
struct inode_bitmap {
pr_buf(out, "generation: %u", le32_to_cpu(gen.v->bi_generation));
}
-void bch2_inode_init(struct bch_fs *c, struct bch_inode_unpacked *inode_u,
- uid_t uid, gid_t gid, umode_t mode, dev_t rdev,
- struct bch_inode_unpacked *parent)
+void bch2_inode_init_early(struct bch_fs *c,
+ struct bch_inode_unpacked *inode_u)
{
- s64 now = bch2_current_time(c);
enum bch_str_hash_type str_hash =
bch2_str_hash_opt_to_type(c, c->opts.str_hash);
inode_u->bi_flags |= str_hash << INODE_STR_HASH_OFFSET;
get_random_bytes(&inode_u->bi_hash_seed,
sizeof(inode_u->bi_hash_seed));
+}
+void bch2_inode_init_late(struct bch_inode_unpacked *inode_u, u64 now,
+ uid_t uid, gid_t gid, umode_t mode, dev_t rdev,
+ struct bch_inode_unpacked *parent)
+{
inode_u->bi_mode = mode;
inode_u->bi_uid = uid;
inode_u->bi_gid = gid;
inode_u->bi_ctime = now;
inode_u->bi_otime = now;
+ if (parent && parent->bi_mode & S_ISGID) {
+ inode_u->bi_gid = parent->bi_gid;
+ if (S_ISDIR(mode))
+ inode_u->bi_mode |= S_ISGID;
+ }
+
if (parent) {
#define x(_name, ...) inode_u->bi_##_name = parent->bi_##_name;
BCH_INODE_OPTS()
}
}
+void bch2_inode_init(struct bch_fs *c, struct bch_inode_unpacked *inode_u,
+ uid_t uid, gid_t gid, umode_t mode, dev_t rdev,
+ struct bch_inode_unpacked *parent)
+{
+ bch2_inode_init_early(c, inode_u);
+ bch2_inode_init_late(inode_u, bch2_current_time(c),
+ uid, gid, mode, rdev, parent);
+}
+
static inline u32 bkey_generation(struct bkey_s_c k)
{
switch (k.k->type) {
}
}
-int __bch2_inode_create(struct btree_trans *trans,
- struct bch_inode_unpacked *inode_u,
- u64 min, u64 max, u64 *hint)
+int bch2_inode_create(struct btree_trans *trans,
+ struct bch_inode_unpacked *inode_u,
+ u64 min, u64 max, u64 *hint)
{
struct bch_fs *c = trans->c;
struct bkey_inode_buf *inode_p;
return -ENOSPC;
}
-int bch2_inode_create(struct bch_fs *c, struct bch_inode_unpacked *inode_u,
- u64 min, u64 max, u64 *hint)
-{
- return bch2_trans_do(c, NULL, BTREE_INSERT_ATOMIC,
- __bch2_inode_create(&trans, inode_u, min, max, hint));
-}
-
int bch2_inode_rm(struct bch_fs *c, u64 inode_nr)
{
struct btree_trans trans;
int bch2_inode_write(struct btree_trans *, struct btree_iter *,
struct bch_inode_unpacked *);
+void bch2_inode_init_early(struct bch_fs *,
+ struct bch_inode_unpacked *);
+void bch2_inode_init_late(struct bch_inode_unpacked *, u64,
+ uid_t, gid_t, umode_t, dev_t,
+ struct bch_inode_unpacked *);
void bch2_inode_init(struct bch_fs *, struct bch_inode_unpacked *,
uid_t, gid_t, umode_t, dev_t,
struct bch_inode_unpacked *);
-int __bch2_inode_create(struct btree_trans *,
- struct bch_inode_unpacked *,
- u64, u64, u64 *);
-int bch2_inode_create(struct bch_fs *, struct bch_inode_unpacked *,
+int bch2_inode_create(struct btree_trans *,
+ struct bch_inode_unpacked *,
u64, u64, u64 *);
int bch2_inode_rm(struct bch_fs *, u64);
}
}
+static inline u8 mode_to_type(umode_t mode)
+{
+ return (mode >> 12) & 15;
+}
+
/* i_nlink: */
static inline unsigned nlink_bias(umode_t mode)
#include "dirent.h"
#include "ec.h"
#include "error.h"
+#include "fs-common.h"
#include "fsck.h"
#include "journal_io.h"
#include "journal_reclaim.h"
{
struct bch_inode_unpacked root_inode, lostfound_inode;
struct bkey_inode_buf packed_inode;
- struct bch_hash_info root_hash_info;
struct qstr lostfound = QSTR("lost+found");
const char *err = "cannot allocate memory";
struct bch_dev *ca;
bch2_inode_init(c, &root_inode, 0, 0,
S_IFDIR|S_IRWXU|S_IRUGO|S_IXUGO, 0, NULL);
root_inode.bi_inum = BCACHEFS_ROOT_INO;
- root_inode.bi_nlink++; /* lost+found */
bch2_inode_pack(&packed_inode, &root_inode);
err = "error creating root directory";
if (ret)
goto err;
- bch2_inode_init(c, &lostfound_inode, 0, 0,
- S_IFDIR|S_IRWXU|S_IRUGO|S_IXUGO, 0,
- &root_inode);
- lostfound_inode.bi_inum = BCACHEFS_ROOT_INO + 1;
- bch2_inode_pack(&packed_inode, &lostfound_inode);
+ bch2_inode_init_early(c, &lostfound_inode);
err = "error creating lost+found";
- ret = bch2_btree_insert(c, BTREE_ID_INODES,
- &packed_inode.inode.k_i,
- NULL, NULL, 0);
- if (ret)
- goto err;
-
- root_hash_info = bch2_hash_info_init(c, &root_inode);
-
- ret = bch2_dirent_create(c, BCACHEFS_ROOT_INO, &root_hash_info, DT_DIR,
- &lostfound, lostfound_inode.bi_inum, NULL,
- BTREE_INSERT_NOFAIL);
+ ret = bch2_trans_do(c, NULL, BTREE_INSERT_ATOMIC,
+ bch2_create_trans(&trans, BCACHEFS_ROOT_INO,
+ &root_inode, &lostfound_inode,
+ &lostfound,
+ 0, 0, 0755, 0,
+ NULL, NULL));
if (ret)
goto err;
projects / bcachefs-tools-debian / commitdiff