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| author | Guillaume Cottenceau <gc@mandriva.com> | 2003-12-05 14:05:12 +0000 |
|---|---|---|
| committer | Guillaume Cottenceau <gc@mandriva.com> | 2003-12-05 14:05:12 +0000 |
| commit | 103bd01b806de899a006b689ae648c3b33e45649 (patch) | |
| tree | a7b8ee03964716c6606c05fdf6179785e0191169 | |
| parent | 37968dcdab04cce84263ad03ede5e88c83161cc8 (diff) | |
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Andrey told me how to tell supermount to force unmount
| -rw-r--r-- | mdk-stage1/init.c | 48 |
1 files changed, 38 insertions, 10 deletions
diff --git a/mdk-stage1/init.c b/mdk-stage1/init.c index f5e18bb03..454433179 100644 --- a/mdk-stage1/init.c +++ b/mdk-stage1/init.c @@ -270,6 +270,15 @@ struct filesystem int mounted; }; +char* strcat(register char* s,register const char* t) +{ + char *dest=s; + s+=strlen(s); + for (;;) + if (!(*s = *t)) break; ++s; ++t; + return dest; +} + /* attempt to unmount all filesystems in /proc/mounts */ void unmount_filesystems(void) { @@ -341,16 +350,37 @@ void unmount_filesystems(void) #ifdef MANDRAKE_MOVE if (!disallow_eject) { - fd = open("/dev/cdrom", O_RDONLY|O_NONBLOCK, 0); - if (fd > 0) { - ioctl(fd, CDROM_LOCKDOOR, 0); - close(fd); - } - fd = open("/dev/cdrom", O_RDONLY|O_NONBLOCK, 0); + fd = open("/proc/fs/supermount/subfs", O_RDONLY, 0); if (fd > 0) { - if (!ioctl(fd, CDROMEJECT, 0)) - goto ejected; + char devices[100][100]; + int i = 0; + char * ptr1, * ptr2; + size = read(fd, buf, sizeof(buf) - 1); + buf[size] = '\0'; close(fd); + ptr1 = buf; + ptr2 = buf; + while (*ptr1 && *ptr2) { + char * ptrf = ptr1; + while (*ptr2 && *ptr2 != '\n') + ptr2++; + while (*ptrf && *ptrf != ' ') + ptrf++; + if (*ptrf) + *ptrf = '\0'; + strcpy(devices[i], ptr1); + i++; + if (*ptr2) + ptr2++; + ptr1 = ptr2; + } + while (i >= 1) { + i--; + strcat(devices[i], " release force"); + fd = open("/proc/fs/supermount/subfs", O_WRONLY, 0); + write(fd, devices[i], strlen(devices[i])); + close(fd); + } } fd = open("/dev/cdrom", O_RDONLY|O_NONBLOCK, 0); if (fd > 0) { @@ -362,8 +392,6 @@ void unmount_filesystems(void) ioctl(fd, CDROMEJECT, 0); close(fd); } - ejected: - close(fd); } #endif |