diff options
Diffstat (limited to 'libdiskfs')
| -rw-r--r-- | libdiskfs/readonly.c | 58 |
1 files changed, 30 insertions, 28 deletions
diff --git a/libdiskfs/readonly.c b/libdiskfs/readonly.c index 18025468..a459f194 100644 --- a/libdiskfs/readonly.c +++ b/libdiskfs/readonly.c @@ -1,6 +1,6 @@ /* Change to/from read-only - Copyright (C) 1995 Free Software Foundation, Inc. + Copyright (C) 1995, 1996 Free Software Foundation, Inc. Written by Miles Bader <miles@gnu.ai.mit.edu> @@ -35,42 +35,44 @@ diskfs_set_readonly (int readonly) if (readonly != diskfs_readonly) { - ports_inhibit_class_rpcs (diskfs_protid_class); - - if (readonly) + err = ports_inhibit_class_rpcs (diskfs_protid_class); + if (! err) { - error_t peropen_writable (void *pi) + if (readonly) { - if (((struct port_info *)pi)->class == diskfs_protid_class - && (((struct protid *)pi)->po->openstat & O_WRITE)) - return EBUSY; - else - return 0; + error_t peropen_writable (void *pi) + { + if (((struct port_info *)pi)->class == diskfs_protid_class + && (((struct protid *)pi)->po->openstat & O_WRITE)) + return EBUSY; + else + return 0; + } + + /* Any writable open files? */ + err = ports_bucket_iterate (diskfs_port_bucket, peropen_writable); + + /* Any writable pagers? */ + if (!err && (diskfs_max_user_pager_prot () & VM_PROT_WRITE)) + err = EBUSY; + + if (!err) + /* Sync */ + { + diskfs_sync_everything (1); + diskfs_set_hypermetadata (1, 1); + sleep (1); /* XXX! */ + } } - /* Any writable open files? */ - err = ports_bucket_iterate (diskfs_port_bucket, peropen_writable); - - /* Any writable pagers? */ - if (!err && (diskfs_max_user_pager_prot () & VM_PROT_WRITE)) - err = EBUSY; - if (!err) - /* Sync */ { - diskfs_sync_everything (1); - diskfs_set_hypermetadata (1, 1); - sleep (1); /* XXX! */ + diskfs_readonly = readonly; + diskfs_readonly_changed (readonly); } - } - if (!err) - { - diskfs_readonly = readonly; - diskfs_readonly_changed (readonly); + ports_resume_class_rpcs (diskfs_protid_class); } - - ports_resume_class_rpcs (diskfs_protid_class); } return err; |