diff options
Diffstat (limited to 'fs')
40 files changed, 627 insertions, 1116 deletions
@@ -15,6 +15,7 @@ #include <linux/aio_abi.h> #include <linux/module.h> #include <linux/syscalls.h> +#include <linux/backing-dev.h> #include <linux/uio.h> #define DEBUG 0 @@ -32,6 +33,9 @@ #include <linux/workqueue.h> #include <linux/security.h> #include <linux/eventfd.h> +#include <linux/blkdev.h> +#include <linux/mempool.h> +#include <linux/hash.h> #include <asm/kmap_types.h> #include <asm/uaccess.h> @@ -60,6 +64,14 @@ static DECLARE_WORK(fput_work, aio_fput_routine); static DEFINE_SPINLOCK(fput_lock); static LIST_HEAD(fput_head); +#define AIO_BATCH_HASH_BITS 3 /* allocated on-stack, so don't go crazy */ +#define AIO_BATCH_HASH_SIZE (1 << AIO_BATCH_HASH_BITS) +struct aio_batch_entry { + struct hlist_node list; + struct address_space *mapping; +}; +mempool_t *abe_pool; + static void aio_kick_handler(struct work_struct *); static void aio_queue_work(struct kioctx *); @@ -73,6 +85,8 @@ static int __init aio_setup(void) kioctx_cachep = KMEM_CACHE(kioctx,SLAB_HWCACHE_ALIGN|SLAB_PANIC); aio_wq = create_workqueue("aio"); + abe_pool = mempool_create_kmalloc_pool(1, sizeof(struct aio_batch_entry)); + BUG_ON(!abe_pool); pr_debug("aio_setup: sizeof(struct page) = %d\n", (int)sizeof(struct page)); @@ -1531,8 +1545,44 @@ static int aio_wake_function(wait_queue_t *wait, unsigned mode, return 1; } +static void aio_batch_add(struct address_space *mapping, + struct hlist_head *batch_hash) +{ + struct aio_batch_entry *abe; + struct hlist_node *pos; + unsigned bucket; + + bucket = hash_ptr(mapping, AIO_BATCH_HASH_BITS); + hlist_for_each_entry(abe, pos, &batch_hash[bucket], list) { + if (abe->mapping == mapping) + return; + } + + abe = mempool_alloc(abe_pool, GFP_KERNEL); + BUG_ON(!igrab(mapping->host)); + abe->mapping = mapping; + hlist_add_head(&abe->list, &batch_hash[bucket]); + return; +} + +static void aio_batch_free(struct hlist_head *batch_hash) +{ + struct aio_batch_entry *abe; + struct hlist_node *pos, *n; + int i; + + for (i = 0; i < AIO_BATCH_HASH_SIZE; i++) { + hlist_for_each_entry_safe(abe, pos, n, &batch_hash[i], list) { + blk_run_address_space(abe->mapping); + iput(abe->mapping->host); + hlist_del(&abe->list); + mempool_free(abe, abe_pool); + } + } +} + static int io_submit_one(struct kioctx *ctx, struct iocb __user *user_iocb, - struct iocb *iocb) + struct iocb *iocb, struct hlist_head *batch_hash) { struct kiocb *req; struct file *file; @@ -1608,6 +1658,12 @@ static int io_submit_one(struct kioctx *ctx, struct iocb __user *user_iocb, ; } spin_unlock_irq(&ctx->ctx_lock); + if (req->ki_opcode == IOCB_CMD_PREAD || + req->ki_opcode == IOCB_CMD_PREADV || + req->ki_opcode == IOCB_CMD_PWRITE || + req->ki_opcode == IOCB_CMD_PWRITEV) + aio_batch_add(file->f_mapping, batch_hash); + aio_put_req(req); /* drop extra ref to req */ return 0; @@ -1635,6 +1691,7 @@ SYSCALL_DEFINE3(io_submit, aio_context_t, ctx_id, long, nr, struct kioctx *ctx; long ret = 0; int i; + struct hlist_head batch_hash[AIO_BATCH_HASH_SIZE] = { { 0, }, }; if (unlikely(nr < 0)) return -EINVAL; @@ -1666,10 +1723,11 @@ SYSCALL_DEFINE3(io_submit, aio_context_t, ctx_id, long, nr, break; } - ret = io_submit_one(ctx, user_iocb, &tmp); + ret = io_submit_one(ctx, user_iocb, &tmp, batch_hash); if (ret) break; } + aio_batch_free(batch_hash); put_ioctx(ctx); return i ? i : ret; @@ -1393,6 +1393,18 @@ void bio_check_pages_dirty(struct bio *bio) } } +#if ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE +void bio_flush_dcache_pages(struct bio *bi) +{ + int i; + struct bio_vec *bvec; + + bio_for_each_segment(bvec, bi, i) + flush_dcache_page(bvec->bv_page); +} +EXPORT_SYMBOL(bio_flush_dcache_pages); +#endif + /** * bio_endio - end I/O on a bio * @bio: bio diff --git a/fs/block_dev.c b/fs/block_dev.c index 8bed0557d88..73d6a735b8f 100644 --- a/fs/block_dev.c +++ b/fs/block_dev.c @@ -405,7 +405,17 @@ static loff_t block_llseek(struct file *file, loff_t offset, int origin) static int block_fsync(struct file *filp, struct dentry *dentry, int datasync) { - return sync_blockdev(I_BDEV(filp->f_mapping->host)); + struct block_device *bdev = I_BDEV(filp->f_mapping->host); + int error; + + error = sync_blockdev(bdev); + if (error) + return error; + + error = blkdev_issue_flush(bdev, NULL); + if (error == -EOPNOTSUPP) + error = 0; + return error; } /* diff --git a/fs/coda/sysctl.c b/fs/coda/sysctl.c index 43c96ce2961..c6405ce3c50 100644 --- a/fs/coda/sysctl.c +++ b/fs/coda/sysctl.c @@ -17,28 +17,25 @@ static struct ctl_table_header *fs_table_header; static ctl_table coda_table[] = { { - .ctl_name = CTL_UNNUMBERED, .procname = "timeout", .data = &coda_timeout, .maxlen = sizeof(int), .mode = 0644, - .proc_handler = &proc_dointvec + .proc_handler = proc_dointvec }, { - .ctl_name = CTL_UNNUMBERED, .procname = "hard", .data = &coda_hard, .maxlen = sizeof(int), .mode = 0644, - .proc_handler = &proc_dointvec + .proc_handler = proc_dointvec }, { - .ctl_name = CTL_UNNUMBERED, .procname = "fake_statfs", .data = &coda_fake_statfs, .maxlen = sizeof(int), .mode = 0600, - .proc_handler = &proc_dointvec + .proc_handler = proc_dointvec }, {} }; @@ -46,7 +43,6 @@ static ctl_table coda_table[] = { #ifdef CONFIG_SYSCTL static ctl_table fs_table[] = { { - .ctl_name = CTL_UNNUMBERED, .procname = "coda", .mode = 0555, .child = coda_table diff --git a/fs/compat_ioctl.c b/fs/compat_ioctl.c index 0fc5ecab1b4..2346895b3a7 100644 --- a/fs/compat_ioctl.c +++ b/fs/compat_ioctl.c @@ -246,428 +246,6 @@ static int do_video_set_spu_palette(unsigned int fd, unsigned int cmd, unsigned return err; } -#ifdef CONFIG_NET -static int do_siocgstamp(unsigned int fd, unsigned int cmd, unsigned long arg) -{ - struct compat_timeval __user *up = compat_ptr(arg); - struct timeval ktv; - mm_segment_t old_fs = get_fs(); - int err; - - set_fs(KERNEL_DS); - err = sys_ioctl(fd, cmd, (unsigned long)&ktv); - set_fs(old_fs); - if(!err) { - err = put_user(ktv.tv_sec, &up->tv_sec); - err |= __put_user(ktv.tv_usec, &up->tv_usec); - } - return err; -} - -static int do_siocgstampns(unsigned int fd, unsigned int cmd, unsigned long arg) -{ - struct compat_timespec __user *up = compat_ptr(arg); - struct timespec kts; - mm_segment_t old_fs = get_fs(); - int err; - - set_fs(KERNEL_DS); - err = sys_ioctl(fd, cmd, (unsigned long)&kts); - set_fs(old_fs); - if (!err) { - err = put_user(kts.tv_sec, &up->tv_sec); - err |= __put_user(kts.tv_nsec, &up->tv_nsec); - } - return err; -} - -struct ifmap32 { - compat_ulong_t mem_start; - compat_ulong_t mem_end; - unsigned short base_addr; - unsigned char irq; - unsigned char dma; - unsigned char port; -}; - -struct ifreq32 { -#define IFHWADDRLEN 6 -#define IFNAMSIZ 16 - union { - char ifrn_name[IFNAMSIZ]; /* if name, e.g. "en0" */ - } ifr_ifrn; - union { - struct sockaddr ifru_addr; - struct sockaddr ifru_dstaddr; - struct sockaddr ifru_broadaddr; - struct sockaddr ifru_netmask; - struct sockaddr ifru_hwaddr; - short ifru_flags; - compat_int_t ifru_ivalue; - compat_int_t ifru_mtu; - struct ifmap32 ifru_map; - char ifru_slave[IFNAMSIZ]; /* Just fits the size */ - char ifru_newname[IFNAMSIZ]; - compat_caddr_t ifru_data; - /* XXXX? ifru_settings should be here */ - } ifr_ifru; -}; - -struct ifconf32 { - compat_int_t ifc_len; /* size of buffer */ - compat_caddr_t ifcbuf; -}; - -static int dev_ifname32(unsigned int fd, unsigned int cmd, unsigned long arg) -{ - struct ifreq __user *uifr; - int err; - - uifr = compat_alloc_user_space(sizeof(struct ifreq)); - if (copy_in_user(uifr, compat_ptr(arg), sizeof(struct ifreq32))) - return -EFAULT; - - err = sys_ioctl(fd, SIOCGIFNAME, (unsigned long)uifr); - if (err) - return err; - - if (copy_in_user(compat_ptr(arg), uifr, sizeof(struct ifreq32))) - return -EFAULT; - - return 0; -} - -static int dev_ifconf(unsigned int fd, unsigned int cmd, unsigned long arg) -{ - struct ifconf32 ifc32; - struct ifconf ifc; - struct ifconf __user *uifc; - struct ifreq32 __user *ifr32; - struct ifreq __user *ifr; - unsigned int i, j; - int err; - - if (copy_from_user(&ifc32, compat_ptr(arg), sizeof(struct ifconf32))) - return -EFAULT; - - if (ifc32.ifcbuf == 0) { - ifc32.ifc_len = 0; - ifc.ifc_len = 0; - ifc.ifc_req = NULL; - uifc = compat_alloc_user_space(sizeof(struct ifconf)); - } else { - size_t len =((ifc32.ifc_len / sizeof (struct ifreq32)) + 1) * - sizeof (struct ifreq); - uifc = compat_alloc_user_space(sizeof(struct ifconf) + len); - ifc.ifc_len = len; - ifr = ifc.ifc_req = (void __user *)(uifc + 1); - ifr32 = compat_ptr(ifc32.ifcbuf); - for (i = 0; i < ifc32.ifc_len; i += sizeof (struct ifreq32)) { - if (copy_in_user(ifr, ifr32, sizeof(struct ifreq32))) - return -EFAULT; - ifr++; - ifr32++; - } - } - if (copy_to_user(uifc, &ifc, sizeof(struct ifconf))) - return -EFAULT; - - err = sys_ioctl (fd, SIOCGIFCONF, (unsigned long)uifc); - if (err) - return err; - - if (copy_from_user(&ifc, uifc, sizeof(struct ifconf))) - return -EFAULT; - - ifr = ifc.ifc_req; - ifr32 = compat_ptr(ifc32.ifcbuf); - for (i = 0, j = 0; - i + sizeof (struct ifreq32) <= ifc32.ifc_len && j < ifc.ifc_len; - i += sizeof (struct ifreq32), j += sizeof (struct ifreq)) { - if (copy_in_user(ifr32, ifr, sizeof (struct ifreq32))) - return -EFAULT; - ifr32++; - ifr++; - } - - if (ifc32.ifcbuf == 0) { - /* Translate from 64-bit structure multiple to - * a 32-bit one. - */ - i = ifc.ifc_len; - i = ((i / sizeof(struct ifreq)) * sizeof(struct ifreq32)); - ifc32.ifc_len = i; - } else { - ifc32.ifc_len = i; - } - if (copy_to_user(compat_ptr(arg), &ifc32, sizeof(struct ifconf32))) - return -EFAULT; - - return 0; -} - -static int ethtool_ioctl(unsigned int fd, unsigned int cmd, unsigned long arg) -{ - struct ifreq __user *ifr; - struct ifreq32 __user *ifr32; - u32 data; - void __user *datap; - - ifr = compat_alloc_user_space(sizeof(*ifr)); - ifr32 = compat_ptr(arg); - - if (copy_in_user(&ifr->ifr_name, &ifr32->ifr_name, IFNAMSIZ)) - return -EFAULT; - - if (get_user(data, &ifr32->ifr_ifru.ifru_data)) - return -EFAULT; - - datap = compat_ptr(data); - if (put_user(datap, &ifr->ifr_ifru.ifru_data)) - return -EFAULT; - - return sys_ioctl(fd, cmd, (unsigned long) ifr); -} - -static int bond_ioctl(unsigned int fd, unsigned int cmd, unsigned long arg) -{ - struct ifreq kifr; - struct ifreq __user *uifr; - struct ifreq32 __user *ifr32 = compat_ptr(arg); - mm_segment_t old_fs; - int err; - u32 data; - void __user *datap; - - switch (cmd) { - case SIOCBONDENSLAVE: - case SIOCBONDRELEASE: - case SIOCBONDSETHWADDR: - case SIOCBONDCHANGEACTIVE: - if (copy_from_user(&kifr, ifr32, sizeof(struct ifreq32))) - return -EFAULT; - - old_fs = get_fs(); - set_fs (KERNEL_DS); - err = sys_ioctl (fd, cmd, (unsigned long)&kifr); - set_fs (old_fs); - - return err; - case SIOCBONDSLAVEINFOQUERY: - case SIOCBONDINFOQUERY: - uifr = compat_alloc_user_space(sizeof(*uifr)); - if (copy_in_user(&uifr->ifr_name, &ifr32->ifr_name, IFNAMSIZ)) - return -EFAULT; - - if (get_user(data, &ifr32->ifr_ifru.ifru_data)) - return -EFAULT; - - datap = compat_ptr(data); - if (put_user(datap, &uifr->ifr_ifru.ifru_data)) - return -EFAULT; - - return sys_ioctl (fd, cmd, (unsigned long)uifr); - default: - return -EINVAL; - }; -} - -static int siocdevprivate_ioctl(unsigned int fd, unsigned int cmd, unsigned long arg) -{ - struct ifreq __user *u_ifreq64; - struct ifreq32 __user *u_ifreq32 = compat_ptr(arg); - char tmp_buf[IFNAMSIZ]; - void __user *data64; - u32 data32; - - if (copy_from_user(&tmp_buf[0], &(u_ifreq32->ifr_ifrn.ifrn_name[0]), - IFNAMSIZ)) - return -EFAULT; - if (__get_user(data32, &u_ifreq32->ifr_ifru.ifru_data)) - return -EFAULT; - data64 = compat_ptr(data32); - - u_ifreq64 = compat_alloc_user_space(sizeof(*u_ifreq64)); - - /* Don't check these user accesses, just let that get trapped - * in the ioctl handler instead. - */ - if (copy_to_user(&u_ifreq64->ifr_ifrn.ifrn_name[0], &tmp_buf[0], - IFNAMSIZ)) - return -EFAULT; - if (__put_user(data64, &u_ifreq64->ifr_ifru.ifru_data)) - return -EFAULT; - - return sys_ioctl(fd, cmd, (unsigned long) u_ifreq64); -} - -static int dev_ifsioc(unsigned int fd, unsigned int cmd, unsigned long arg) -{ - struct ifreq ifr; - struct ifreq32 __user *uifr32; - struct ifmap32 __user *uifmap32; - mm_segment_t old_fs; - int err; - - uifr32 = compat_ptr(arg); - uifmap32 = &uifr32->ifr_ifru.ifru_map; - switch (cmd) { - case SIOCSIFMAP: - err = copy_from_user(&ifr, uifr32, sizeof(ifr.ifr_name)); - err |= __get_user(ifr.ifr_map.mem_start, &uifmap32->mem_start); - err |= __get_user(ifr.ifr_map.mem_end, &uifmap32->mem_end); - err |= __get_user(ifr.ifr_map.base_addr, &uifmap32->base_addr); - err |= __get_user(ifr.ifr_map.irq, &uifmap32->irq); - err |= __get_user(ifr.ifr_map.dma, &uifmap32->dma); - err |= __get_user(ifr.ifr_map.port, &uifmap32->port); - if (err) - return -EFAULT; - break; - case SIOCSHWTSTAMP: - if (copy_from_user(&ifr, uifr32, sizeof(*uifr32))) - return -EFAULT; - ifr.ifr_data = compat_ptr(uifr32->ifr_ifru.ifru_data); - break; - default: - if (copy_from_user(&ifr, uifr32, sizeof(*uifr32))) - return -EFAULT; - break; - } - old_fs = get_fs(); - set_fs (KERNEL_DS); - err = sys_ioctl (fd, cmd, (unsigned long)&ifr); - set_fs (old_fs); - if (!err) { - switch (cmd) { - /* TUNSETIFF is defined as _IOW, it should be _IORW - * as the data is copied back to user space, but that - * cannot be fixed without breaking all existing apps. - */ - case TUNSETIFF: - case TUNGETIFF: - case SIOCGIFFLAGS: - case SIOCGIFMETRIC: - case SIOCGIFMTU: - case SIOCGIFMEM: - case SIOCGIFHWADDR: - case SIOCGIFINDEX: - case SIOCGIFADDR: - case SIOCGIFBRDADDR: - case SIOCGIFDSTADDR: - case SIOCGIFNETMASK: - case SIOCGIFTXQLEN: - if (copy_to_user(uifr32, &ifr, sizeof(*uifr32))) - return -EFAULT; - break; - case SIOCGIFMAP: - err = copy_to_user(uifr32, &ifr, sizeof(ifr.ifr_name)); - err |= __put_user(ifr.ifr_map.mem_start, &uifmap32->mem_start); - err |= __put_user(ifr.ifr_map.mem_end, &uifmap32->mem_end); - err |= __put_user(ifr.ifr_map.base_addr, &uifmap32->base_addr); - err |= __put_user(ifr.ifr_map.irq, &uifmap32->irq); - err |= __put_user(ifr.ifr_map.dma, &uifmap32->dma); - err |= __put_user(ifr.ifr_map.port, &uifmap32->port); - if (err) - err = -EFAULT; - break; - } - } - return err; -} - -struct rtentry32 { - u32 rt_pad1; - struct sockaddr rt_dst; /* target address */ - struct sockaddr rt_gateway; /* gateway addr (RTF_GATEWAY) */ - struct sockaddr rt_genmask; /* target network mask (IP) */ - unsigned short rt_flags; - short rt_pad2; - u32 rt_pad3; - unsigned char rt_tos; - unsigned char rt_class; - short rt_pad4; - short rt_metric; /* +1 for binary compatibility! */ - /* char * */ u32 rt_dev; /* forcing the device at add */ - u32 rt_mtu; /* per route MTU/Window */ - u32 rt_window; /* Window clamping */ - unsigned short rt_irtt; /* Initial RTT */ - -}; - -struct in6_rtmsg32 { - struct in6_addr rtmsg_dst; - struct in6_addr rtmsg_src; - struct in6_addr rtmsg_gateway; - u32 rtmsg_type; - u16 rtmsg_dst_len; - u16 rtmsg_src_len; - u32 rtmsg_metric; - u32 rtmsg_info; - u32 rtmsg_flags; - s32 rtmsg_ifindex; -}; - -static int routing_ioctl(unsigned int fd, unsigned int cmd, unsigned long arg) -{ - int ret; - void *r = NULL; - struct in6_rtmsg r6; - struct rtentry r4; - char devname[16]; - u32 rtdev; - mm_segment_t old_fs = get_fs(); - - struct socket *mysock = sockfd_lookup(fd, &ret); - - if (mysock && mysock->sk && mysock->sk->sk_family == AF_INET6) { /* ipv6 */ - struct in6_rtmsg32 __user *ur6 = compat_ptr(arg); - ret = copy_from_user (&r6.rtmsg_dst, &(ur6->rtmsg_dst), - 3 * sizeof(struct in6_addr)); - ret |= __get_user (r6.rtmsg_type, &(ur6->rtmsg_type)); - ret |= __get_user (r6.rtmsg_dst_len, &(ur6->rtmsg_dst_len)); - ret |= __get_user (r6.rtmsg_src_len, &(ur6->rtmsg_src_len)); - ret |= __get_user (r6.rtmsg_metric, &(ur6->rtmsg_metric)); - ret |= __get_user (r6.rtmsg_info, &(ur6->rtmsg_info)); - ret |= __get_user (r6.rtmsg_flags, &(ur6->rtmsg_flags)); - ret |= __get_user (r6.rtmsg_ifindex, &(ur6->rtmsg_ifindex)); - - r = (void *) &r6; - } else { /* ipv4 */ - struct rtentry32 __user *ur4 = compat_ptr(arg); - ret = copy_from_user (&r4.rt_dst, &(ur4->rt_dst), - 3 * sizeof(struct sockaddr)); - ret |= __get_user (r4.rt_flags, &(ur4->rt_flags)); - ret |= __get_user (r4.rt_metric, &(ur4->rt_metric)); - ret |= __get_user (r4.rt_mtu, &(ur4->rt_mtu)); - ret |= __get_user (r4.rt_window, &(ur4->rt_window)); - ret |= __get_user (r4.rt_irtt, &(ur4->rt_irtt)); - ret |= __get_user (rtdev, &(ur4->rt_dev)); - if (rtdev) { - ret |= copy_from_user (devname, compat_ptr(rtdev), 15); - r4.rt_dev = devname; devname[15] = 0; - } else - r4.rt_dev = NULL; - - r = (void *) &r4; - } - - if (ret) { - ret = -EFAULT; - goto out; - } - - set_fs (KERNEL_DS); - ret = sys_ioctl (fd, cmd, (unsigned long) r); - set_fs (old_fs); - -out: - if (mysock) - sockfd_put(mysock); - - return ret; -} -#endif - #ifdef CONFIG_BLOCK typedef struct sg_io_hdr32 { compat_int_t interface_id; /* [i] 'S' for SCSI generic (required) */ @@ -1212,170 +790,6 @@ static int do_smb_getmountuid(unsigned int fd, unsigned int cmd, unsigned long a return err; } -struct atmif_sioc32 { - compat_int_t number; - compat_int_t length; - compat_caddr_t arg; -}; - -struct atm_iobuf32 { - compat_int_t length; - compat_caddr_t buffer; -}; - -#define ATM_GETLINKRATE32 _IOW('a', ATMIOC_ITF+1, struct atmif_sioc32) -#define ATM_GETNAMES32 _IOW('a', ATMIOC_ITF+3, struct atm_iobuf32) -#define ATM_GETTYPE32 _IOW('a', ATMIOC_ITF+4, struct atmif_sioc32) -#define ATM_GETESI32 _IOW('a', ATMIOC_ITF+5, struct atmif_sioc32) -#define ATM_GETADDR32 _IOW('a', ATMIOC_ITF+6, struct atmif_sioc32) -#define ATM_RSTADDR32 _IOW('a', ATMIOC_ITF+7, struct atmif_sioc32) -#define ATM_ADDADDR32 _IOW('a', ATMIOC_ITF+8, struct atmif_sioc32) -#define ATM_DELADDR32 _IOW('a', ATMIOC_ITF+9, struct atmif_sioc32) -#define ATM_GETCIRANGE32 _IOW('a', ATMIOC_ITF+10, struct atmif_sioc32) -#define ATM_SETCIRANGE32 _IOW('a', ATMIOC_ITF+11, struct atmif_sioc32) -#define ATM_SETESI32 _IOW('a', ATMIOC_ITF+12, struct atmif_sioc32) -#define ATM_SETESIF32 _IOW('a', ATMIOC_ITF+13, struct atmif_sioc32) -#define ATM_GETSTAT32 _IOW('a', ATMIOC_SARCOM+0, struct atmif_sioc32) -#define ATM_GETSTATZ32 _IOW('a', ATMIOC_SARCOM+1, struct atmif_sioc32) -#define ATM_GETLOOP32 _IOW('a', ATMIOC_SARCOM+2, struct atmif_sioc32) -#define ATM_SETLOOP32 _IOW('a', ATMIOC_SARCOM+3, struct atmif_sioc32) -#define ATM_QUERYLOOP32 _IOW('a', ATMIOC_SARCOM+4, struct atmif_sioc32) - -static struct { - unsigned int cmd32; - unsigned int cmd; -} atm_ioctl_map[] = { - { ATM_GETLINKRATE32, ATM_GETLINKRATE }, - { ATM_GETNAMES32, ATM_GETNAMES }, - { ATM_GETTYPE32, ATM_GETTYPE }, - { ATM_GETESI32, ATM_GETESI }, - { ATM_GETADDR32, ATM_GETADDR }, - { ATM_RSTADDR32, ATM_RSTADDR }, - { ATM_ADDADDR32, ATM_ADDADDR }, - { ATM_DELADDR32, ATM_DELADDR }, - { ATM_GETCIRANGE32, ATM_GETCIRANGE }, - { ATM_SETCIRANGE32, ATM_SETCIRANGE }, - { ATM_SETESI32, ATM_SETESI }, - { ATM_SETESIF32, ATM_SETESIF }, - { ATM_GETSTAT32, ATM_GETSTAT }, - { ATM_GETSTATZ32, ATM_GETSTATZ }, - { ATM_GETLOOP32, ATM_GETLOOP }, - { ATM_SETLOOP32, ATM_SETLOOP }, - { ATM_QUERYLOOP32, ATM_QUERYLOOP } -}; - -#define NR_ATM_IOCTL ARRAY_SIZE(atm_ioctl_map) - -static int do_atm_iobuf(unsigned int fd, unsigned int cmd, unsigned long arg) -{ - struct atm_iobuf __user *iobuf; - struct atm_iobuf32 __user *iobuf32; - u32 data; - void __user *datap; - int len, err; - - iobuf = compat_alloc_user_space(sizeof(*iobuf)); - iobuf32 = compat_ptr(arg); - - if (get_user(len, &iobuf32->length) || - get_user(data, &iobuf32->buffer)) - return -EFAULT; - datap = compat_ptr(data); - if (put_user(len, &iobuf->length) || - put_user(datap, &iobuf->buffer)) - return -EFAULT; - - err = sys_ioctl(fd, cmd, (unsigned long)iobuf); - - if (!err) { - if (copy_in_user(&iobuf32->length, &iobuf->length, - sizeof(int))) - err = -EFAULT; - } - - return err; -} - -static int do_atmif_sioc(unsigned int fd, unsigned int cmd, unsigned long arg) -{ - struct atmif_sioc __user *sioc; - struct atmif_sioc32 __user *sioc32; - u32 data; - void __user *datap; - int err; - - sioc = compat_alloc_user_space(sizeof(*sioc)); - sioc32 = compat_ptr(arg); - - if (copy_in_user(&sioc->number, &sioc32->number, 2 * sizeof(int)) || - get_user(data, &sioc32->arg)) - return -EFAULT; - datap = compat_ptr(data); - if (put_user(datap, &sioc->arg)) - return -EFAULT; - - err = sys_ioctl(fd, cmd, (unsigned long) sioc); - - if (!err) { - if (copy_in_user(&sioc32->length, &sioc->length, - sizeof(int))) - err = -EFAULT; - } - return err; -} - -static int do_atm_ioctl(unsigned int fd, unsigned int cmd32, unsigned long arg) -{ - int i; - unsigned int cmd = 0; - - switch (cmd32) { - case SONET_GETSTAT: - case SONET_GETSTATZ: - case SONET_GETDIAG: - case SONET_SETDIAG: - case SONET_CLRDIAG: - case SONET_SETFRAMING: - case SONET_GETFRAMING: - case SONET_GETFRSENSE: - return do_atmif_sioc(fd, cmd32, arg); - } - - for (i = 0; i < NR_ATM_IOCTL; i++) { - if (cmd32 == atm_ioctl_map[i].cmd32) { - cmd = atm_ioctl_map[i].cmd; - break; - } - } - if (i == NR_ATM_IOCTL) - return -EINVAL; - - switch (cmd) { - case ATM_GETNAMES: - return do_atm_iobuf(fd, cmd, arg); - - case ATM_GETLINKRATE: - case ATM_GETTYPE: - case ATM_GETESI: - case ATM_GETADDR: - case ATM_RSTADDR: - case ATM_ADDADDR: - case ATM_DELADDR: - case ATM_GETCIRANGE: - case ATM_SETCIRANGE: - case ATM_SETESI: - case ATM_SETESIF: - case ATM_GETSTAT: - case ATM_GETSTATZ: - case ATM_GETLOOP: - case ATM_SETLOOP: - case ATM_QUERYLOOP: - return do_atmif_sioc(fd, cmd, arg); - }</ |