diff options
Diffstat (limited to 'arch/um')
| -rw-r--r-- | arch/um/drivers/ubd_kern.c | 7 | ||||
| -rw-r--r-- | arch/um/include/shared/os.h | 3 | ||||
| -rw-r--r-- | arch/um/kernel/ksyms.c | 3 | ||||
| -rw-r--r-- | arch/um/os-Linux/file.c | 15 | ||||
| -rw-r--r-- | arch/um/os-Linux/user_syms.c | 4 |
5 files changed, 31 insertions, 1 deletions
diff --git a/arch/um/drivers/ubd_kern.c b/arch/um/drivers/ubd_kern.c index da992a3ad6b7..1bcd208c459f 100644 --- a/arch/um/drivers/ubd_kern.c +++ b/arch/um/drivers/ubd_kern.c @@ -33,6 +33,7 @@ #include "linux/mm.h" #include "linux/slab.h" #include "linux/vmalloc.h" +#include "linux/smp_lock.h" #include "linux/blkpg.h" #include "linux/genhd.h" #include "linux/spinlock.h" @@ -1098,6 +1099,7 @@ static int ubd_open(struct block_device *bdev, fmode_t mode) struct ubd *ubd_dev = disk->private_data; int err = 0; + lock_kernel(); if(ubd_dev->count == 0){ err = ubd_open_dev(ubd_dev); if(err){ @@ -1115,7 +1117,8 @@ static int ubd_open(struct block_device *bdev, fmode_t mode) if(--ubd_dev->count == 0) ubd_close_dev(ubd_dev); err = -EROFS; }*/ - out: +out: + unlock_kernel(); return err; } @@ -1123,8 +1126,10 @@ static int ubd_release(struct gendisk *disk, fmode_t mode) { struct ubd *ubd_dev = disk->private_data; + lock_kernel(); if(--ubd_dev->count == 0) ubd_close_dev(ubd_dev); + unlock_kernel(); return 0; } diff --git a/arch/um/include/shared/os.h b/arch/um/include/shared/os.h index cd40fddcf99d..c4617baaa4f2 100644 --- a/arch/um/include/shared/os.h +++ b/arch/um/include/shared/os.h @@ -161,6 +161,9 @@ extern int os_stat_filesystem(char *path, long *bsize_out, long *spare_out); extern int os_change_dir(char *dir); extern int os_fchange_dir(int fd); +extern unsigned os_major(unsigned long long dev); +extern unsigned os_minor(unsigned long long dev); +extern unsigned long long os_makedev(unsigned major, unsigned minor); /* start_up.c */ extern void os_early_checks(void); diff --git a/arch/um/kernel/ksyms.c b/arch/um/kernel/ksyms.c index 836fc9b94707..0ae0dfcfbffb 100644 --- a/arch/um/kernel/ksyms.c +++ b/arch/um/kernel/ksyms.c @@ -58,6 +58,9 @@ EXPORT_SYMBOL(os_accept_connection); EXPORT_SYMBOL(os_rcv_fd); EXPORT_SYMBOL(run_helper); EXPORT_SYMBOL(start_thread); +EXPORT_SYMBOL(os_major); +EXPORT_SYMBOL(os_minor); +EXPORT_SYMBOL(os_makedev); EXPORT_SYMBOL(add_sigio_fd); EXPORT_SYMBOL(ignore_sigio_fd); diff --git a/arch/um/os-Linux/file.c b/arch/um/os-Linux/file.c index b5afcfd0f861..140e587bc0ad 100644 --- a/arch/um/os-Linux/file.c +++ b/arch/um/os-Linux/file.c @@ -561,3 +561,18 @@ int os_lock_file(int fd, int excl) out: return err; } + +unsigned os_major(unsigned long long dev) +{ + return major(dev); +} + +unsigned os_minor(unsigned long long dev) +{ + return minor(dev); +} + +unsigned long long os_makedev(unsigned major, unsigned minor) +{ + return makedev(major, minor); +} diff --git a/arch/um/os-Linux/user_syms.c b/arch/um/os-Linux/user_syms.c index 89b48a116a89..05f5ea8e83d2 100644 --- a/arch/um/os-Linux/user_syms.c +++ b/arch/um/os-Linux/user_syms.c @@ -103,6 +103,10 @@ EXPORT_SYMBOL_PROTO(getuid); EXPORT_SYMBOL_PROTO(fsync); EXPORT_SYMBOL_PROTO(fdatasync); +EXPORT_SYMBOL_PROTO(lstat64); +EXPORT_SYMBOL_PROTO(fstat64); +EXPORT_SYMBOL_PROTO(mknod); + /* Export symbols used by GCC for the stack protector. */ extern void __stack_smash_handler(void *) __attribute__((weak)); EXPORT_SYMBOL(__stack_smash_handler); |