#include "fs-io.h"
#include "fs-ioctl.h"
#include "fs-io-buffered.h"
+#include "fs-io-direct.h"
#include "fs-io-pagecache.h"
#include "fsck.h"
#include "inode.h"
-#include "io.h"
+#include "io_read.h"
#include "journal.h"
#include "keylist.h"
#include "quota.h"
+#include "snapshot.h"
#include "super.h"
#include "xattr.h"
inode->v.i_mode = bi->bi_mode;
if (fields & ATTR_ATIME)
- inode->v.i_atime = bch2_time_to_timespec(c, bi->bi_atime);
+ inode_set_atime_to_ts(&inode->v, bch2_time_to_timespec(c, bi->bi_atime));
if (fields & ATTR_MTIME)
- inode->v.i_mtime = bch2_time_to_timespec(c, bi->bi_mtime);
+ inode_set_mtime_to_ts(&inode->v, bch2_time_to_timespec(c, bi->bi_mtime));
if (fields & ATTR_CTIME)
- inode->v.i_ctime = bch2_time_to_timespec(c, bi->bi_ctime);
+ inode_set_ctime_to_ts(&inode->v, bch2_time_to_timespec(c, bi->bi_ctime));
inode->ei_inode = *bi;
inode_set_fn set,
void *p, unsigned fields)
{
- struct btree_trans trans;
+ struct btree_trans *trans = bch2_trans_get(c);
struct btree_iter iter = { NULL };
struct bch_inode_unpacked inode_u;
int ret;
-
- bch2_trans_init(&trans, c, 0, 512);
retry:
- bch2_trans_begin(&trans);
+ bch2_trans_begin(trans);
- ret = bch2_inode_peek(&trans, &iter, &inode_u, inode_inum(inode),
+ ret = bch2_inode_peek(trans, &iter, &inode_u, inode_inum(inode),
BTREE_ITER_INTENT) ?:
- (set ? set(inode, &inode_u, p) : 0) ?:
- bch2_inode_write(&trans, &iter, &inode_u) ?:
- bch2_trans_commit(&trans, NULL, NULL, BTREE_INSERT_NOFAIL);
+ (set ? set(trans, inode, &inode_u, p) : 0) ?:
+ bch2_inode_write(trans, &iter, &inode_u) ?:
+ bch2_trans_commit(trans, NULL, NULL, BCH_TRANS_COMMIT_no_enospc);
/*
* the btree node lock protects inode->ei_inode, not ei_update_lock;
* this is important for inode updates via bchfs_write_index_update
*/
if (!ret)
- bch2_inode_update_after_write(&trans, inode, &inode_u, fields);
+ bch2_inode_update_after_write(trans, inode, &inode_u, fields);
- bch2_trans_iter_exit(&trans, &iter);
+ bch2_trans_iter_exit(trans, &iter);
if (bch2_err_matches(ret, BCH_ERR_transaction_restart))
goto retry;
inode_inum(inode).subvol,
inode_inum(inode).inum);
- bch2_trans_exit(&trans);
+ bch2_trans_put(trans);
return ret < 0 ? ret : 0;
}
{
struct bch_inode_unpacked inode_u;
struct bch_inode_info *inode;
- struct btree_trans trans;
+ struct btree_trans *trans;
struct bch_subvolume subvol;
int ret;
if (!(inode->v.i_state & I_NEW))
return &inode->v;
- bch2_trans_init(&trans, c, 8, 0);
- ret = lockrestart_do(&trans,
- bch2_subvolume_get(&trans, inum.subvol, true, 0, &subvol) ?:
- bch2_inode_find_by_inum_trans(&trans, inum, &inode_u));
+ trans = bch2_trans_get(c);
+ ret = lockrestart_do(trans,
+ bch2_subvolume_get(trans, inum.subvol, true, 0, &subvol) ?:
+ bch2_inode_find_by_inum_trans(trans, inum, &inode_u));
if (!ret)
- bch2_vfs_inode_init(&trans, inum, inode, &inode_u, &subvol);
- bch2_trans_exit(&trans);
+ bch2_vfs_inode_init(trans, inum, inode, &inode_u, &subvol);
+ bch2_trans_put(trans);
if (ret) {
iget_failed(&inode->v);
unsigned flags)
{
struct bch_fs *c = dir->v.i_sb->s_fs_info;
- struct btree_trans trans;
+ struct btree_trans *trans;
struct bch_inode_unpacked dir_u;
struct bch_inode_info *inode, *old;
struct bch_inode_unpacked inode_u;
if (!(flags & BCH_CREATE_TMPFILE))
mutex_lock(&dir->ei_update_lock);
- bch2_trans_init(&trans, c, 8,
- 2048 + (!(flags & BCH_CREATE_TMPFILE)
- ? dentry->d_name.len : 0));
+ trans = bch2_trans_get(c);
retry:
- bch2_trans_begin(&trans);
+ bch2_trans_begin(trans);
- ret = bch2_create_trans(&trans,
+ ret = bch2_subvol_is_ro_trans(trans, dir->ei_subvol) ?:
+ bch2_create_trans(trans,
inode_inum(dir), &dir_u, &inode_u,
!(flags & BCH_CREATE_TMPFILE)
? &dentry->d_name : NULL,
inum.subvol = inode_u.bi_subvol ?: dir->ei_subvol;
inum.inum = inode_u.bi_inum;
- ret = bch2_subvolume_get(&trans, inum.subvol, true,
+ ret = bch2_subvolume_get(trans, inum.subvol, true,
BTREE_ITER_WITH_UPDATES, &subvol) ?:
- bch2_trans_commit(&trans, NULL, &journal_seq, 0);
+ bch2_trans_commit(trans, NULL, &journal_seq, 0);
if (unlikely(ret)) {
bch2_quota_acct(c, bch_qid(&inode_u), Q_INO, -1,
KEY_TYPE_QUOTA_WARN);
}
if (!(flags & BCH_CREATE_TMPFILE)) {
- bch2_inode_update_after_write(&trans, dir, &dir_u,
+ bch2_inode_update_after_write(trans, dir, &dir_u,
ATTR_MTIME|ATTR_CTIME);
mutex_unlock(&dir->ei_update_lock);
}
bch2_iget5_set(&inode->v, &inum);
- bch2_vfs_inode_init(&trans, inum, inode, &inode_u, &subvol);
+ bch2_vfs_inode_init(trans, inum, inode, &inode_u, &subvol);
set_cached_acl(&inode->v, ACL_TYPE_ACCESS, acl);
set_cached_acl(&inode->v, ACL_TYPE_DEFAULT, default_acl);
unlock_new_inode(&inode->v);
}
- bch2_trans_exit(&trans);
+ bch2_trans_put(trans);
err:
posix_acl_release(default_acl);
posix_acl_release(acl);
if (!(flags & BCH_CREATE_TMPFILE))
mutex_unlock(&dir->ei_update_lock);
- bch2_trans_exit(&trans);
+ bch2_trans_put(trans);
make_bad_inode(&inode->v);
iput(&inode->v);
inode = ERR_PTR(ret);
struct bch_inode_info *dir,
struct dentry *dentry)
{
- struct btree_trans trans;
+ struct btree_trans *trans = bch2_trans_get(c);
struct bch_inode_unpacked dir_u, inode_u;
int ret;
mutex_lock(&inode->ei_update_lock);
- bch2_trans_init(&trans, c, 4, 1024);
- ret = commit_do(&trans, NULL, NULL, 0,
- bch2_link_trans(&trans,
+ ret = commit_do(trans, NULL, NULL, 0,
+ bch2_link_trans(trans,
inode_inum(dir), &dir_u,
inode_inum(inode), &inode_u,
&dentry->d_name));
if (likely(!ret)) {
- bch2_inode_update_after_write(&trans, dir, &dir_u,
+ bch2_inode_update_after_write(trans, dir, &dir_u,
ATTR_MTIME|ATTR_CTIME);
- bch2_inode_update_after_write(&trans, inode, &inode_u, ATTR_CTIME);
+ bch2_inode_update_after_write(trans, inode, &inode_u, ATTR_CTIME);
}
- bch2_trans_exit(&trans);
+ bch2_trans_put(trans);
mutex_unlock(&inode->ei_update_lock);
return ret;
}
lockdep_assert_held(&inode->v.i_rwsem);
- ret = __bch2_link(c, inode, dir, dentry);
+ ret = bch2_subvol_is_ro(c, dir->ei_subvol) ?:
+ bch2_subvol_is_ro(c, inode->ei_subvol) ?:
+ __bch2_link(c, inode, dir, dentry);
if (unlikely(ret))
return ret;
struct bch_inode_info *dir = to_bch_ei(vdir);
struct bch_inode_info *inode = to_bch_ei(dentry->d_inode);
struct bch_inode_unpacked dir_u, inode_u;
- struct btree_trans trans;
+ struct btree_trans *trans = bch2_trans_get(c);
int ret;
bch2_lock_inodes(INODE_UPDATE_LOCK, dir, inode);
- bch2_trans_init(&trans, c, 4, 1024);
- ret = commit_do(&trans, NULL, NULL,
- BTREE_INSERT_NOFAIL,
- bch2_unlink_trans(&trans,
+ ret = commit_do(trans, NULL, NULL,
+ BCH_TRANS_COMMIT_no_enospc,
+ bch2_unlink_trans(trans,
inode_inum(dir), &dir_u,
&inode_u, &dentry->d_name,
deleting_snapshot));
if (unlikely(ret))
goto err;
- bch2_inode_update_after_write(&trans, dir, &dir_u,
+ bch2_inode_update_after_write(trans, dir, &dir_u,
ATTR_MTIME|ATTR_CTIME);
- bch2_inode_update_after_write(&trans, inode, &inode_u,
+ bch2_inode_update_after_write(trans, inode, &inode_u,
ATTR_MTIME);
if (inode_u.bi_subvol) {
set_nlink(&inode->v, 0);
}
err:
- bch2_trans_exit(&trans);
bch2_unlock_inodes(INODE_UPDATE_LOCK, dir, inode);
+ bch2_trans_put(trans);
return ret;
}
static int bch2_unlink(struct inode *vdir, struct dentry *dentry)
{
- return __bch2_unlink(vdir, dentry, false);
+ struct bch_inode_info *dir= to_bch_ei(vdir);
+ struct bch_fs *c = dir->v.i_sb->s_fs_info;
+
+ return bch2_subvol_is_ro(c, dir->ei_subvol) ?:
+ __bch2_unlink(vdir, dentry, false);
}
static int bch2_symlink(struct mnt_idmap *idmap,
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;
+ struct btree_trans *trans;
enum bch_rename_mode mode = flags & RENAME_EXCHANGE
? BCH_RENAME_EXCHANGE
: dst_dentry->d_inode
return ret;
}
- bch2_trans_init(&trans, c, 8, 2048);
+ trans = bch2_trans_get(c);
bch2_lock_inodes(INODE_UPDATE_LOCK,
src_dir,
src_inode,
dst_inode);
+ ret = bch2_subvol_is_ro_trans(trans, src_dir->ei_subvol) ?:
+ bch2_subvol_is_ro_trans(trans, dst_dir->ei_subvol);
+ if (ret)
+ goto err;
+
if (inode_attr_changing(dst_dir, src_inode, Inode_opt_project)) {
ret = bch2_fs_quota_transfer(c, src_inode,
dst_dir->ei_qid,
goto err;
}
- ret = commit_do(&trans, NULL, NULL, 0,
- bch2_rename_trans(&trans,
+ ret = commit_do(trans, NULL, NULL, 0,
+ bch2_rename_trans(trans,
inode_inum(src_dir), &src_dir_u,
inode_inum(dst_dir), &dst_dir_u,
&src_inode_u,
BUG_ON(dst_inode &&
dst_inode->v.i_ino != dst_inode_u.bi_inum);
- bch2_inode_update_after_write(&trans, src_dir, &src_dir_u,
+ bch2_inode_update_after_write(trans, src_dir, &src_dir_u,
ATTR_MTIME|ATTR_CTIME);
if (src_dir != dst_dir)
- bch2_inode_update_after_write(&trans, dst_dir, &dst_dir_u,
+ bch2_inode_update_after_write(trans, dst_dir, &dst_dir_u,
ATTR_MTIME|ATTR_CTIME);
- bch2_inode_update_after_write(&trans, src_inode, &src_inode_u,
+ bch2_inode_update_after_write(trans, src_inode, &src_inode_u,
ATTR_CTIME);
if (dst_inode)
- bch2_inode_update_after_write(&trans, dst_inode, &dst_inode_u,
+ bch2_inode_update_after_write(trans, dst_inode, &dst_inode_u,
ATTR_CTIME);
err:
- bch2_trans_exit(&trans);
+ bch2_trans_put(trans);
bch2_fs_quota_transfer(c, src_inode,
bch_qid(&src_inode->ei_inode),
{
struct bch_fs *c = inode->v.i_sb->s_fs_info;
struct bch_qid qid;
- struct btree_trans trans;
+ struct btree_trans *trans;
struct btree_iter inode_iter = { NULL };
struct bch_inode_unpacked inode_u;
struct posix_acl *acl = NULL;
if (ret)
goto err;
- bch2_trans_init(&trans, c, 0, 0);
+ trans = bch2_trans_get(c);
retry:
- bch2_trans_begin(&trans);
+ bch2_trans_begin(trans);
kfree(acl);
acl = NULL;
- ret = bch2_inode_peek(&trans, &inode_iter, &inode_u, inode_inum(inode),
+ ret = bch2_inode_peek(trans, &inode_iter, &inode_u, inode_inum(inode),
BTREE_ITER_INTENT);
if (ret)
goto btree_err;
bch2_setattr_copy(idmap, inode, &inode_u, attr);
if (attr->ia_valid & ATTR_MODE) {
- ret = bch2_acl_chmod(&trans, inode_inum(inode), &inode_u,
+ ret = bch2_acl_chmod(trans, inode_inum(inode), &inode_u,
inode_u.bi_mode, &acl);
if (ret)
goto btree_err;
}
- ret = bch2_inode_write(&trans, &inode_iter, &inode_u) ?:
- bch2_trans_commit(&trans, NULL, NULL,
- BTREE_INSERT_NOFAIL);
+ ret = bch2_inode_write(trans, &inode_iter, &inode_u) ?:
+ bch2_trans_commit(trans, NULL, NULL,
+ BCH_TRANS_COMMIT_no_enospc);
btree_err:
- bch2_trans_iter_exit(&trans, &inode_iter);
+ bch2_trans_iter_exit(trans, &inode_iter);
if (bch2_err_matches(ret, BCH_ERR_transaction_restart))
goto retry;
if (unlikely(ret))
goto err_trans;
- bch2_inode_update_after_write(&trans, inode, &inode_u, attr->ia_valid);
+ bch2_inode_update_after_write(trans, inode, &inode_u, attr->ia_valid);
if (acl)
set_cached_acl(&inode->v, ACL_TYPE_ACCESS, acl);
err_trans:
- bch2_trans_exit(&trans);
+ bch2_trans_put(trans);
err:
mutex_unlock(&inode->ei_update_lock);
stat->gid = inode->v.i_gid;
stat->rdev = inode->v.i_rdev;
stat->size = i_size_read(&inode->v);
- stat->atime = inode->v.i_atime;
- stat->mtime = inode->v.i_mtime;
- stat->ctime = inode->v.i_ctime;
+ stat->atime = inode_get_atime(&inode->v);
+ stat->mtime = inode_get_mtime(&inode->v);
+ stat->ctime = inode_get_ctime(&inode->v);
stat->blksize = block_bytes(c);
stat->blocks = inode->v.i_blocks;
stat->btime = bch2_time_to_timespec(c, inode->ei_inode.bi_otime);
}
- if (inode->ei_inode.bi_flags & BCH_INODE_IMMUTABLE)
+ if (inode->ei_inode.bi_flags & BCH_INODE_immutable)
stat->attributes |= STATX_ATTR_IMMUTABLE;
stat->attributes_mask |= STATX_ATTR_IMMUTABLE;
- if (inode->ei_inode.bi_flags & BCH_INODE_APPEND)
+ if (inode->ei_inode.bi_flags & BCH_INODE_append)
stat->attributes |= STATX_ATTR_APPEND;
stat->attributes_mask |= STATX_ATTR_APPEND;
- if (inode->ei_inode.bi_flags & BCH_INODE_NODUMP)
+ if (inode->ei_inode.bi_flags & BCH_INODE_nodump)
stat->attributes |= STATX_ATTR_NODUMP;
stat->attributes_mask |= STATX_ATTR_NODUMP;
struct dentry *dentry, struct iattr *iattr)
{
struct bch_inode_info *inode = to_bch_ei(dentry->d_inode);
+ struct bch_fs *c = inode->v.i_sb->s_fs_info;
int ret;
lockdep_assert_held(&inode->v.i_rwsem);
- ret = setattr_prepare(idmap, dentry, iattr);
+ ret = bch2_subvol_is_ro(c, inode->ei_subvol) ?:
+ setattr_prepare(idmap, dentry, iattr);
if (ret)
return ret;
return iattr->ia_valid & ATTR_SIZE
- ? bch2_truncate(idmap, inode, iattr)
+ ? bchfs_truncate(idmap, inode, iattr)
: bch2_setattr_nonsize(idmap, inode, iattr);
}
{
struct bch_fs *c = vinode->i_sb->s_fs_info;
struct bch_inode_info *ei = to_bch_ei(vinode);
- struct btree_trans trans;
+ struct btree_trans *trans;
struct btree_iter iter;
struct bkey_s_c k;
struct bkey_buf cur, prev;
bch2_bkey_buf_init(&cur);
bch2_bkey_buf_init(&prev);
- bch2_trans_init(&trans, c, 0, 0);
+ trans = bch2_trans_get(c);
retry:
- bch2_trans_begin(&trans);
+ bch2_trans_begin(trans);
- ret = bch2_subvolume_get_snapshot(&trans, ei->ei_subvol, &snapshot);
+ ret = bch2_subvolume_get_snapshot(trans, ei->ei_subvol, &snapshot);
if (ret)
goto err;
- bch2_trans_iter_init(&trans, &iter, BTREE_ID_extents,
+ bch2_trans_iter_init(trans, &iter, BTREE_ID_extents,
SPOS(ei->v.i_ino, start, snapshot), 0);
- while (!(ret = btree_trans_too_many_iters(&trans)) &&
+ while (!(ret = btree_trans_too_many_iters(trans)) &&
(k = bch2_btree_iter_peek_upto(&iter, end)).k &&
!(ret = bkey_err(k))) {
enum btree_id data_btree = BTREE_ID_extents;
bch2_bkey_buf_reassemble(&cur, c, k);
- ret = bch2_read_indirect_extent(&trans, &data_btree,
+ ret = bch2_read_indirect_extent(trans, &data_btree,
&offset_into_extent, &cur);
if (ret)
break;
cur.k->k.p.offset += cur.k->k.size;
if (have_extent) {
- bch2_trans_unlock(&trans);
+ bch2_trans_unlock(trans);
ret = bch2_fill_extent(c, info,
bkey_i_to_s_c(prev.k), 0);
if (ret)
POS(iter.pos.inode, iter.pos.offset + sectors));
}
start = iter.pos.offset;
- bch2_trans_iter_exit(&trans, &iter);
+ bch2_trans_iter_exit(trans, &iter);
err:
if (bch2_err_matches(ret, BCH_ERR_transaction_restart))
goto retry;
if (!ret && have_extent) {
- bch2_trans_unlock(&trans);
+ bch2_trans_unlock(trans);
ret = bch2_fill_extent(c, info, bkey_i_to_s_c(prev.k),
FIEMAP_EXTENT_LAST);
}
- bch2_trans_exit(&trans);
+ bch2_trans_put(trans);
bch2_bkey_buf_exit(&cur, c);
bch2_bkey_buf_exit(&prev, c);
return ret < 0 ? ret : 0;
{
struct bch_inode_info *inode = file_bch_inode(file);
struct bch_fs *c = inode->v.i_sb->s_fs_info;
- int ret;
if (!dir_emit_dots(file, ctx))
return 0;
- ret = bch2_readdir(c, inode_inum(inode), ctx);
- if (ret)
- bch_err_fn(c, ret);
+ int ret = bch2_readdir(c, inode_inum(inode), ctx);
+ bch_err_fn(c, ret);
return bch2_err_class(ret);
}
+static int bch2_open(struct inode *vinode, struct file *file)
+{
+ if (file->f_flags & (O_WRONLY|O_RDWR)) {
+ struct bch_inode_info *inode = to_bch_ei(vinode);
+ struct bch_fs *c = inode->v.i_sb->s_fs_info;
+
+ int ret = bch2_subvol_is_ro(c, inode->ei_subvol);
+ if (ret)
+ return ret;
+ }
+
+ return generic_file_open(vinode, file);
+}
+
static const struct file_operations bch_file_operations = {
+ .open = bch2_open,
.llseek = bch2_llseek,
.read_iter = bch2_read_iter,
.write_iter = bch2_write_iter,
.mmap = bch2_mmap,
- .open = generic_file_open,
.fsync = bch2_fsync,
.splice_read = filemap_splice_read,
.splice_write = iter_file_splice_write,
#ifdef CONFIG_MIGRATION
.migrate_folio = filemap_migrate_folio,
#endif
- .error_remove_page = generic_error_remove_page,
+ .error_remove_folio = generic_error_remove_folio,
};
struct bcachefs_fid {
{
struct bch_inode_info *inode = to_bch_ei(vinode);
struct bch_inode_info *dir = to_bch_ei(vdir);
-
- if (*len < sizeof(struct bcachefs_fid_with_parent) / sizeof(u32))
- return FILEID_INVALID;
+ int min_len;
if (!S_ISDIR(inode->v.i_mode) && dir) {
struct bcachefs_fid_with_parent *fid = (void *) fh;
+ min_len = sizeof(*fid) / sizeof(u32);
+ if (*len < min_len) {
+ *len = min_len;
+ return FILEID_INVALID;
+ }
+
fid->fid = bch2_inode_to_fid(inode);
fid->dir = bch2_inode_to_fid(dir);
- *len = sizeof(*fid) / sizeof(u32);
+ *len = min_len;
return FILEID_BCACHEFS_WITH_PARENT;
} else {
struct bcachefs_fid *fid = (void *) fh;
+ min_len = sizeof(*fid) / sizeof(u32);
+ if (*len < min_len) {
+ *len = min_len;
+ return FILEID_INVALID;
+ }
*fid = bch2_inode_to_fid(inode);
- *len = sizeof(*fid) / sizeof(u32);
+ *len = min_len;
return FILEID_BCACHEFS_WITHOUT_PARENT;
}
}
.inum = inode->ei_inode.bi_dir,
};
- if (!parent_inum.inum)
- return NULL;
-
return d_obtain_alias(bch2_vfs_inode_get(c, parent_inum));
}
struct bch_inode_info *inode = to_bch_ei(child->d_inode);
struct bch_inode_info *dir = to_bch_ei(parent->d_inode);
struct bch_fs *c = inode->v.i_sb->s_fs_info;
- struct btree_trans trans;
+ struct btree_trans *trans;
struct btree_iter iter1;
struct btree_iter iter2;
struct bkey_s_c k;
struct bch_inode_unpacked inode_u;
subvol_inum target;
u32 snapshot;
- unsigned name_len;
+ struct qstr dirent_name;
+ unsigned name_len = 0;
int ret;
if (!S_ISDIR(dir->v.i_mode))
return -EINVAL;
- bch2_trans_init(&trans, c, 0, 0);
+ trans = bch2_trans_get(c);
- bch2_trans_iter_init(&trans, &iter1, BTREE_ID_dirents,
+ bch2_trans_iter_init(trans, &iter1, BTREE_ID_dirents,
POS(dir->ei_inode.bi_inum, 0), 0);
- bch2_trans_iter_init(&trans, &iter2, BTREE_ID_dirents,
+ bch2_trans_iter_init(trans, &iter2, BTREE_ID_dirents,
POS(dir->ei_inode.bi_inum, 0), 0);
retry:
- bch2_trans_begin(&trans);
+ bch2_trans_begin(trans);
- ret = bch2_subvolume_get_snapshot(&trans, dir->ei_subvol, &snapshot);
+ ret = bch2_subvolume_get_snapshot(trans, dir->ei_subvol, &snapshot);
if (ret)
goto err;
bch2_btree_iter_set_snapshot(&iter1, snapshot);
bch2_btree_iter_set_snapshot(&iter2, snapshot);
- ret = bch2_inode_find_by_inum_trans(&trans, inode_inum(inode), &inode_u);
+ ret = bch2_inode_find_by_inum_trans(trans, inode_inum(inode), &inode_u);
if (ret)
goto err;
}
d = bkey_s_c_to_dirent(k);
- ret = bch2_dirent_read_target(&trans, inode_inum(dir), d, &target);
+ ret = bch2_dirent_read_target(trans, inode_inum(dir), d, &target);
if (ret > 0)
ret = -BCH_ERR_ENOENT_dirent_doesnt_match_inode;
if (ret)
continue;
d = bkey_s_c_to_dirent(k);
- ret = bch2_dirent_read_target(&trans, inode_inum(dir), d, &target);
+ ret = bch2_dirent_read_target(trans, inode_inum(dir), d, &target);
if (ret < 0)
break;
if (ret)
ret = -ENOENT;
goto err;
found:
- name_len = min_t(unsigned, bch2_dirent_name_bytes(d), NAME_MAX);
+ dirent_name = bch2_dirent_get_name(d);
- memcpy(name, d.v->d_name, name_len);
+ name_len = min_t(unsigned, dirent_name.len, NAME_MAX);
+ memcpy(name, dirent_name.name, name_len);
name[name_len] = '\0';
err:
if (bch2_err_matches(ret, BCH_ERR_transaction_restart))
goto retry;
- bch2_trans_iter_exit(&trans, &iter1);
- bch2_trans_iter_exit(&trans, &iter2);
- bch2_trans_exit(&trans);
+ bch2_trans_iter_exit(trans, &iter1);
+ bch2_trans_iter_exit(trans, &iter2);
+ bch2_trans_put(trans);
return ret;
}
call_rcu(&vinode->i_rcu, bch2_i_callback);
}
-static int inode_update_times_fn(struct bch_inode_info *inode,
+static int inode_update_times_fn(struct btree_trans *trans,
+ struct bch_inode_info *inode,
struct bch_inode_unpacked *bi,
void *p)
{
struct bch_fs *c = inode->v.i_sb->s_fs_info;
- bi->bi_atime = timespec_to_bch2_time(c, inode->v.i_atime);
- bi->bi_mtime = timespec_to_bch2_time(c, inode->v.i_mtime);
- bi->bi_ctime = timespec_to_bch2_time(c, inode->v.i_ctime);
+ bi->bi_atime = timespec_to_bch2_time(c, inode_get_atime(&inode->v));
+ bi->bi_mtime = timespec_to_bch2_time(c, inode_get_mtime(&inode->v));
+ bi->bi_ctime = timespec_to_bch2_time(c, inode_get_ctime(&inode->v));
return 0;
}
void bch2_evict_subvolume_inodes(struct bch_fs *c, snapshot_id_list *s)
{
- struct bch_inode_info *inode, **i;
+ struct bch_inode_info *inode;
DARRAY(struct bch_inode_info *) grabbed;
bool clean_pass = false, this_pass_clean;
return c ?: ERR_PTR(-ENOENT);
}
-static char **split_devs(const char *_dev_name, unsigned *nr)
-{
- char *dev_name = NULL, **devs = NULL, *s;
- size_t i, nr_devs = 0;
-
- dev_name = kstrdup(_dev_name, GFP_KERNEL);
- if (!dev_name)
- return NULL;
-
- for (s = dev_name; s; s = strchr(s + 1, ':'))
- nr_devs++;
-
- devs = kcalloc(nr_devs + 1, sizeof(const char *), GFP_KERNEL);
- if (!devs) {
- kfree(dev_name);
- return NULL;
- }
-
- for (i = 0, s = dev_name;
- s;
- (s = strchr(s, ':')) && (*s++ = '\0'))
- devs[i++] = s;
-
- *nr = nr_devs;
- return devs;
-}
-
static int bch2_remount(struct super_block *sb, int *flags, char *data)
{
struct bch_fs *c = sb->s_fs_info;
struct bch_opts opts = bch2_opts_empty();
int ret;
- opt_set(opts, read_only, (*flags & SB_RDONLY) != 0);
-
ret = bch2_parse_mount_opts(c, &opts, data);
if (ret)
goto err;
+ opt_set(opts, read_only, (*flags & SB_RDONLY) != 0);
+
if (opts.read_only != c->opts.read_only) {
down_write(&c->state_lock);
up_write(&c->state_lock);
}
- if (opts.errors >= 0)
+ if (opt_defined(opts, errors))
c->opts.errors = opts.errors;
err:
return bch2_err_class(ret);
static int bch2_show_devname(struct seq_file *seq, struct dentry *root)
{
struct bch_fs *c = root->d_sb->s_fs_info;
- struct bch_dev *ca;
- unsigned i;
bool first = true;
- for_each_online_member(ca, c, i) {
+ for_each_online_member(c, ca) {
if (!first)
seq_putc(seq, ':');
first = false;
- seq_puts(seq, "/dev/");
- seq_puts(seq, ca->name);
+ seq_puts(seq, ca->disk_sb.sb_name);
}
return 0;
__bch2_fs_stop(c);
}
+/*
+ * bcachefs doesn't currently integrate intwrite freeze protection but the
+ * internal write references serve the same purpose. Therefore reuse the
+ * read-only transition code to perform the quiesce. The caveat is that we don't
+ * currently have the ability to block tasks that want a write reference while
+ * the superblock is frozen. This is fine for now, but we should either add
+ * blocking support or find a way to integrate sb_start_intwrite() and friends.
+ */
+static int bch2_freeze(struct super_block *sb)
+{
+ struct bch_fs *c = sb->s_fs_info;
+
+ down_write(&c->state_lock);
+ bch2_fs_read_only(c);
+ up_write(&c->state_lock);
+ return 0;
+}
+
+static int bch2_unfreeze(struct super_block *sb)
+{
+ struct bch_fs *c = sb->s_fs_info;
+ int ret;
+
+ if (test_bit(BCH_FS_emergency_ro, &c->flags))
+ return 0;
+
+ down_write(&c->state_lock);
+ ret = bch2_fs_read_write(c);
+ up_write(&c->state_lock);
+ return ret;
+}
+
static const struct super_operations bch_super_operations = {
.alloc_inode = bch2_alloc_inode,
.destroy_inode = bch2_destroy_inode,
.show_options = bch2_show_options,
.remount_fs = bch2_remount,
.put_super = bch2_put_super,
-#if 0
.freeze_fs = bch2_freeze,
.unfreeze_fs = bch2_unfreeze,
-#endif
};
static int bch2_set_super(struct super_block *s, void *data)
return -EBUSY;
}
+typedef DARRAY(struct bch_fs *) darray_fs;
+
static int bch2_test_super(struct super_block *s, void *data)
{
struct bch_fs *c = s->s_fs_info;
- struct bch_fs **devs = data;
- unsigned i;
+ darray_fs *d = data;
if (!c)
return false;
- for (i = 0; devs[i]; i++)
- if (c != devs[i])
+ darray_for_each(*d, i)
+ if (c != *i)
return false;
return true;
}
int flags, const char *dev_name, void *data)
{
struct bch_fs *c;
- struct bch_dev *ca;
struct super_block *sb;
struct inode *vinode;
struct bch_opts opts = bch2_opts_empty();
- char **devs;
- struct bch_fs **devs_to_fs = NULL;
- unsigned i, nr_devs;
int ret;
opt_set(opts, read_only, (flags & SB_RDONLY) != 0);
if (!dev_name || strlen(dev_name) == 0)
return ERR_PTR(-EINVAL);
- devs = split_devs(dev_name, &nr_devs);
- if (!devs)
- return ERR_PTR(-ENOMEM);
+ darray_str devs;
+ ret = bch2_split_devs(dev_name, &devs);
+ if (ret)
+ return ERR_PTR(ret);
- devs_to_fs = kcalloc(nr_devs + 1, sizeof(void *), GFP_KERNEL);
- if (!devs_to_fs) {
- sb = ERR_PTR(-ENOMEM);
- goto got_sb;
+ darray_fs devs_to_fs = {};
+ darray_for_each(devs, i) {
+ ret = darray_push(&devs_to_fs, bch2_path_to_fs(*i));
+ if (ret) {
+ sb = ERR_PTR(ret);
+ goto got_sb;
+ }
}
- for (i = 0; i < nr_devs; i++)
- devs_to_fs[i] = bch2_path_to_fs(devs[i]);
-
- sb = sget(fs_type, bch2_test_super, bch2_noset_super,
- flags|SB_NOSEC, devs_to_fs);
+ sb = sget(fs_type, bch2_test_super, bch2_noset_super, flags|SB_NOSEC, &devs_to_fs);
if (!IS_ERR(sb))
goto got_sb;
- c = bch2_fs_open(devs, nr_devs, opts);
+ c = bch2_fs_open(devs.data, devs.nr, opts);
if (IS_ERR(c)) {
sb = ERR_CAST(c);
goto got_sb;
if (IS_ERR(sb))
bch2_fs_stop(c);
got_sb:
- kfree(devs_to_fs);
- kfree(devs[0]);
- kfree(devs);
+ darray_exit(&devs_to_fs);
+ bch2_darray_str_exit(&devs);
if (IS_ERR(sb)) {
ret = PTR_ERR(sb);
sb->s_bdi->ra_pages = VM_READAHEAD_PAGES;
- for_each_online_member(ca, c, i) {
+ for_each_online_member(c, ca) {
struct block_device *bdev = ca->disk_sb.bdev;
/* XXX: create an anonymous device for multi device filesystems */
sb->s_flags |= SB_POSIXACL;
#endif
- sb->s_shrink.seeks = 0;
+ sb->s_shrink->seeks = 0;
vinode = bch2_vfs_inode_get(c, BCACHEFS_ROOT_SUBVOL_INUM);
ret = PTR_ERR_OR_ZERO(vinode);
- if (ret) {
- bch_err(c, "error mounting: error getting root inode: %s", bch2_err_str(ret));
+ bch_err_msg(c, ret, "mounting: error getting root inode");
+ if (ret)
goto err_put_super;
- }
sb->s_root = d_make_root(vinode);
if (!sb->s_root) {
projects / bcachefs-tools-debian / blobdiff