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added some code to debug why filesystems won't unmount

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This commit is contained in:
Ben Gras 2008-12-11 14:45:31 +00:00
parent e96f86ed8c
commit 5e1bb6eb63
1 changed files with 29 additions and 2 deletions
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31
servers/vfs/mount.c
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@ -316,6 +316,7 @@ PRIVATE int mount_fs(endpoint_t fs_e)
vmp->m_root_node = root_node;
root_node->v_ref_count++;
vmp->m_mounted_on = root_node;
root_dev = dev;
ROOT_FS_E = fs_e;
@ -326,17 +327,19 @@ PRIVATE int mount_fs(endpoint_t fs_e)
if (tfp->fp_rd == NULL)
panic("fs", "do_mount: null rootdir", i);
if (tfp->fp_wd == NULL)
panic("fs", "do_mount: null workdir", i);
put_vnode(tfp->fp_rd);
dup_vnode(root_node);
tfp->fp_rd = root_node;
if (tfp->fp_wd == NULL)
panic("fs", "do_mount: null workdir", i);
put_vnode(tfp->fp_wd);
dup_vnode(root_node);
tfp->fp_wd = root_node;
}
return(OK);
}
@ -421,6 +424,30 @@ Dev_t dev;
count = 0;
for (vp = &vnode[0]; vp < &vnode[NR_VNODES]; vp++) {
if (vp->v_ref_count > 0 && vp->v_dev == dev) {
#if 1
int i;
struct fproc *tfp;
printf("unmount: vnode %d in use %d times\n",
vp->v_inode_nr, vp->v_ref_count);
for (i= 0, tfp= fproc; i<NR_PROCS; i++, tfp++) {
int n;
if (tfp->fp_pid == PID_FREE)
continue;
if(tfp->fp_wd == vp)
printf("\tvnode %d: wd of pid %d\n",
vp->v_inode_nr, tfp->fp_pid);
if(tfp->fp_rd == vp)
printf("\tvnode %d: rd of pid %d\n",
vp->v_inode_nr, tfp->fp_pid);
for(n = 0; n < OPEN_MAX; n++) {
if(tfp->fp_filp[n] && tfp->fp_filp[n]->filp_vno == vp)
printf("\tvnode %d: fd %d of pid %d\n",
vp->v_inode_nr, n, tfp->fp_pid);
}
}
#endif
count += vp->v_ref_count;
}
}