diff options
Diffstat (limited to 'fs/xfs/xfs_dmops.c')
| -rw-r--r-- | fs/xfs/xfs_dmops.c | 43 |
1 files changed, 38 insertions, 5 deletions
diff --git a/fs/xfs/xfs_dmops.c b/fs/xfs/xfs_dmops.c index 1e4a35ddf7f..6cd5704258a 100644 --- a/fs/xfs/xfs_dmops.c +++ b/fs/xfs/xfs_dmops.c @@ -19,18 +19,51 @@ #include "xfs_fs.h" #include "xfs_types.h" #include "xfs_log.h" -#include "xfs_inum.h" #include "xfs_trans.h" #include "xfs_sb.h" -#include "xfs_ag.h" -#include "xfs_dir2.h" #include "xfs_dmapi.h" +#include "xfs_inum.h" +#include "xfs_ag.h" #include "xfs_mount.h" +#include "xfs_clnt.h" + -xfs_dmops_t xfs_dmcore_stub = { +static struct xfs_dmops xfs_dmcore_stub = { .xfs_send_data = (xfs_send_data_t)fs_nosys, .xfs_send_mmap = (xfs_send_mmap_t)fs_noerr, .xfs_send_destroy = (xfs_send_destroy_t)fs_nosys, .xfs_send_namesp = (xfs_send_namesp_t)fs_nosys, - .xfs_send_unmount = (xfs_send_unmount_t)fs_noval, + .xfs_send_mount = (xfs_send_mount_t)fs_nosys, + .xfs_send_unmount = (xfs_send_unmount_t)fs_noerr, }; + +int +xfs_dmops_get(struct xfs_mount *mp, struct xfs_mount_args *args) +{ + if (args->flags & XFSMNT_DMAPI) { + struct xfs_dmops *ops; + + ops = symbol_get(xfs_dmcore_xfs); + if (!ops) { + request_module("xfs_dmapi"); + ops = symbol_get(xfs_dmcore_xfs); + } + + if (!ops) { + cmn_err(CE_WARN, "XFS: no dmapi support available."); + return EINVAL; + } + mp->m_dm_ops = ops; + } else { + mp->m_dm_ops = &xfs_dmcore_stub; + } + + return 0; +} + +void +xfs_dmops_put(struct xfs_mount *mp) +{ + if (mp->m_dm_ops != &xfs_dmcore_stub) + symbol_put(xfs_dmcore_xfs); +} |