#include <sys/ucred.h>
#include <sys/errno.h>
#include <sys/malloc.h>
+#include <sys/decmpfs.h>
-#include <vfs/vfs_journal.h> /* journal_init() */
#if CONFIG_MACF
#include <security/mac_framework.h>
#include <sys/kauth.h>
#define DODEBUG(A)
#endif
-__private_extern__ void vntblinit(void) __attribute__((section("__TEXT, initcode")));
+__private_extern__ void vntblinit(void);
extern struct vnodeopv_desc *vfs_opv_descs[];
/* a list of lists of vnodeops defns */
for (j=0; vfs_opv_descs[i]->opv_desc_ops[j].opve_op; j++) {
opve_descp = &(vfs_opv_descs[i]->opv_desc_ops[j]);
+ /* Silently skip known-disabled operations */
+ if (opve_descp->opve_op->vdesc_flags & VDESC_DISABLED) {
+ printf("vfs_fsadd: Ignoring reference in %p to disabled operation %s.\n",
+ vfs_opv_descs[i], opve_descp->opve_op->vdesc_name);
+ continue;
+ }
+
/*
* Sanity check: is this operation listed
* in the list of operations? We check this
* list of supported operations.
*/
if (opve_descp->opve_op->vdesc_offset == 0 &&
- opve_descp->opve_op->vdesc_offset !=
- VOFFSET(vnop_default)) {
+ opve_descp->opve_op !=
+ VDESC(vnop_default)) {
printf("operation %s not listed in %s.\n",
opve_descp->opve_op->vdesc_name,
"vfs_op_descs");
* and assign each its offset.
*/
for (vfs_opv_numops = 0, i = 0; vfs_op_descs[i]; i++) {
+ /* Silently skip known-disabled operations */
+ if (vfs_op_descs[i]->vdesc_flags & VDESC_DISABLED) {
+ continue;
+ }
vfs_op_descs[i]->vdesc_offset = vfs_opv_numops;
vfs_opv_numops++;
}
lck_attr_t * trigger_vnode_lck_attr;
#endif
+lck_grp_t * fd_vn_lck_grp;
+lck_grp_attr_t * fd_vn_lck_grp_attr;
+lck_attr_t * fd_vn_lck_attr;
+
/* vars for vnode list lock */
lck_grp_t * vnode_list_lck_grp;
lck_grp_attr_t * vnode_list_lck_grp_attr;
lck_attr_t * mnt_list_lck_attr;
lck_mtx_t * mnt_list_mtx_lock;
+/* vars for sync mutex */
+lck_grp_t * sync_mtx_lck_grp;
+lck_grp_attr_t * sync_mtx_lck_grp_attr;
+lck_attr_t * sync_mtx_lck_attr;
+lck_mtx_t * sync_mtx_lck;
+
lck_mtx_t *pkg_extensions_lck;
struct mount * dead_mountp;
trigger_vnode_lck_grp = lck_grp_alloc_init("trigger_vnode", trigger_vnode_lck_grp_attr);
trigger_vnode_lck_attr = lck_attr_alloc_init();
#endif
+ /* Allocate per fd vnode data lock attribute and group */
+ fd_vn_lck_grp_attr = lck_grp_attr_alloc_init();
+ fd_vn_lck_grp = lck_grp_alloc_init("fd_vnode_data", fd_vn_lck_grp_attr);
+ fd_vn_lck_attr = lck_attr_alloc_init();
/* Allocate fs config lock group attribute and group */
fsconf_lck_grp_attr= lck_grp_attr_alloc_init();
/* Allocate mount lock attribute */
mnt_lck_attr = lck_attr_alloc_init();
+ /* Allocate sync lock */
+ sync_mtx_lck_grp_attr = lck_grp_attr_alloc_init();
+ sync_mtx_lck_grp = lck_grp_alloc_init("sync thread", sync_mtx_lck_grp_attr);
+ sync_mtx_lck_attr = lck_attr_alloc_init();
+ sync_mtx_lck = lck_mtx_alloc_init(sync_mtx_lck_grp, sync_mtx_lck_attr);
+
/*
* Initialize the vnode table
*/
*/
nchinit();
-#if JOURNALING
- /*
- * Initialize the journaling locks
- */
- journal_init();
-#endif
nspace_handler_init();
/*
* Initialize each file system type in the static list,
* until the first NULL ->vfs_vfsops is encountered.
*/
- numused_vfsslots = maxtypenum = 0;
+ maxtypenum = VT_NON;
for (vfsp = vfsconf, i = 0; i < maxvfsslots; i++, vfsp++) {
struct vfsconf vfsc;
if (vfsp->vfc_vfsops == (struct vfsops *)0)
vfsc.vfc_reserved2 = 0;
vfsc.vfc_reserved3 = 0;
+ if (vfsp->vfc_vfsops->vfs_sysctl) {
+ struct sysctl_oid *oidp = NULL;
+ struct sysctl_oid oid = SYSCTL_STRUCT_INIT(_vfs, vfsp->vfc_typenum, , CTLTYPE_NODE | CTLFLAG_KERN | CTLFLAG_RW | CTLFLAG_LOCKED, NULL, 0, vfs_sysctl_node, "-", "");
+
+ MALLOC(oidp, struct sysctl_oid *, sizeof(struct sysctl_oid), M_TEMP, M_WAITOK);
+ *oidp = oid;
+
+ /* Memory for VFS oid held by vfsentry forever */
+ vfsp->vfc_sysctl = oidp;
+ oidp->oid_name = vfsp->vfc_name;
+ sysctl_register_oid(vfsp->vfc_sysctl);
+ }
+
(*vfsp->vfc_vfsops->vfs_init)(&vfsc);
numused_vfsslots++;
+ numregistered_fses++;
}
/* next vfc_typenum to be used */
- maxvfsconf = maxtypenum;
+ maxvfstypenum = maxtypenum;
/*
* Initialize the vnop authorization scope.
mac_mount_label_associate(vfs_context_kernel(), mp);
#endif
dead_mountp = mp;
+
+#if FS_COMPRESSION
+ decmpfs_init();
+#endif
}
void
mount_lock_init(mount_t mp)
{
lck_mtx_init(&mp->mnt_mlock, mnt_lck_grp, mnt_lck_attr);
+ lck_mtx_init(&mp->mnt_iter_lock, mnt_lck_grp, mnt_lck_attr);
lck_mtx_init(&mp->mnt_renamelock, mnt_lck_grp, mnt_lck_attr);
lck_rw_init(&mp->mnt_rwlock, mnt_lck_grp, mnt_lck_attr);
}
mount_lock_destroy(mount_t mp)
{
lck_mtx_destroy(&mp->mnt_mlock, mnt_lck_grp);
+ lck_mtx_destroy(&mp->mnt_iter_lock, mnt_lck_grp);
lck_mtx_destroy(&mp->mnt_renamelock, mnt_lck_grp);
lck_rw_destroy(&mp->mnt_rwlock, mnt_lck_grp);
}
{
int slot;
struct vfstable *slotp, *allocated = NULL;
+ struct sysctl_oid *oidp = NULL;
+
+ if (nvfsp->vfc_vfsops->vfs_sysctl) {
+ struct sysctl_oid oid = SYSCTL_STRUCT_INIT(_vfs, nvfsp->vfc_typenum, , CTLTYPE_NODE | CTLFLAG_KERN | CTLFLAG_RW | CTLFLAG_LOCKED, NULL, 0, vfs_sysctl_node, "-", "");
+
+ MALLOC(oidp, struct sysctl_oid *, sizeof(struct sysctl_oid), M_TEMP, M_WAITOK);
+ *oidp = oid;
+ }
+
/*
* Find the next empty slot; we recognize an empty slot by a
* NULL-valued ->vfc_vfsops, so if we delete a VFS, we must
goto findslot;
} else {
slotp = allocated;
- allocated = NULL;
}
} else {
slotp = &vfsconf[slot];
} else {
slotp->vfc_next = NULL;
}
- numused_vfsslots++;
- mount_list_unlock();
+ if (slotp != allocated) {
+ /* used a statically allocated slot */
+ numused_vfsslots++;
+ }
+ numregistered_fses++;
+
+ if (oidp) {
+ /* Memory freed in vfstable_del after unregistration */
+ slotp->vfc_sysctl = oidp;
+ oidp->oid_name = slotp->vfc_name;
+ sysctl_register_oid(slotp->vfc_sysctl);
+ }
- if (allocated != NULL) {
+ mount_list_unlock();
+
+ if (allocated && allocated != slotp) {
+ /* did allocation, but ended up using static slot */
FREE(allocated, M_TEMP);
}
*/
for( vcpp = &vfsconf; *vcpp; vcpp = &(*vcpp)->vfc_next) {
if (*vcpp == vtbl)
- break;
- }
+ break;
+ }
if (*vcpp == NULL)
return(ESRCH); /* vtbl not on vfsconf list */
+ if ((*vcpp)->vfc_sysctl) {
+ sysctl_unregister_oid((*vcpp)->vfc_sysctl);
+ (*vcpp)->vfc_sysctl->oid_name = NULL;
+ FREE((*vcpp)->vfc_sysctl, M_TEMP);
+ (*vcpp)->vfc_sysctl = NULL;
+ }
+
/* Unlink entry */
vcdelp = *vcpp;
*vcpp = (*vcpp)->vfc_next;
if (vcdelp >= vfsconf && vcdelp < (vfsconf + maxvfsslots)) { /* Y */
/* Mark as empty for vfscon_add() */
bzero(vcdelp, sizeof(struct vfstable));
+ numregistered_fses--;
numused_vfsslots--;
} else { /* N */
/*
* vfsconf onto our list, but it may not be persistent
* because of the previous (copying) implementation.
*/
+ numregistered_fses--;
mount_list_unlock();
FREE(vcdelp, M_TEMP);
mount_list_lock();
projects / apple / xnu.git / blobdiff