bcachefs: Make sure c->vfs_sb is set before starting fs

This is necessary for the new blk_holder_ops, which want the vfs
super_block available for synchronization.

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
This commit is contained in:
Kent Overstreet 2025-02-25 22:14:06 -05:00
parent 13fd6be102
commit 1fdbe0b184

View File

@ -2218,9 +2218,10 @@ static int bch2_fs_get_tree(struct fs_context *fc)
bch2_opts_apply(&c->opts, opts); bch2_opts_apply(&c->opts, opts);
ret = bch2_fs_start(c); /*
if (ret) * need to initialise sb and set c->vfs_sb _before_ starting fs,
goto err_stop_fs; * for blk_holder_ops
*/
sb = sget(fc->fs_type, NULL, bch2_set_super, fc->sb_flags|SB_NOSEC, c); sb = sget(fc->fs_type, NULL, bch2_set_super, fc->sb_flags|SB_NOSEC, c);
ret = PTR_ERR_OR_ZERO(sb); ret = PTR_ERR_OR_ZERO(sb);
@ -2282,6 +2283,10 @@ static int bch2_fs_get_tree(struct fs_context *fc)
sb->s_shrink->seeks = 0; sb->s_shrink->seeks = 0;
ret = bch2_fs_start(c);
if (ret)
goto err_put_super;
vinode = bch2_vfs_inode_get(c, BCACHEFS_ROOT_SUBVOL_INUM); vinode = bch2_vfs_inode_get(c, BCACHEFS_ROOT_SUBVOL_INUM);
ret = PTR_ERR_OR_ZERO(vinode); ret = PTR_ERR_OR_ZERO(vinode);
bch_err_msg(c, ret, "mounting: error getting root inode"); bch_err_msg(c, ret, "mounting: error getting root inode");