2 * ioctl.c - NILFS ioctl operations.
4 * Copyright (C) 2007, 2008 Nippon Telegraph and Telephone Corporation.
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
20 * Written by Koji Sato <koji@osrg.net>.
24 #include <linux/wait.h>
25 #include <linux/smp_lock.h> /* lock_kernel(), unlock_kernel() */
26 #include <linux/capability.h> /* capable() */
27 #include <linux/uaccess.h> /* copy_from_user(), copy_to_user() */
28 #include <linux/nilfs2_fs.h>
37 #define KMALLOC_SIZE_MIN 4096 /* 4KB */
38 #define KMALLOC_SIZE_MAX 131072 /* 128 KB */
40 static int nilfs_ioctl_wrap_copy(struct the_nilfs *nilfs,
41 struct nilfs_argv *argv, int dir,
42 ssize_t (*dofunc)(struct the_nilfs *,
44 void *, size_t, size_t))
47 size_t ksize, maxmembs, total, n;
51 if (argv->v_nmembs == 0)
54 for (ksize = KMALLOC_SIZE_MAX; ksize >= KMALLOC_SIZE_MIN; ksize /= 2) {
55 buf = kmalloc(ksize, GFP_NOFS);
59 if (ksize < KMALLOC_SIZE_MIN)
61 maxmembs = ksize / argv->v_size;
65 for (i = 0; i < argv->v_nmembs; i += n) {
66 n = (argv->v_nmembs - i < maxmembs) ?
67 argv->v_nmembs - i : maxmembs;
68 if ((dir & _IOC_WRITE) &&
70 (void __user *)argv->v_base + argv->v_size * i,
75 nr = (*dofunc)(nilfs, argv->v_index + i, argv->v_flags, buf,
81 if ((dir & _IOC_READ) &&
83 (void __user *)argv->v_base + argv->v_size * i,
84 buf, argv->v_size * nr)) {
90 argv->v_nmembs = total;
96 static int nilfs_ioctl_change_cpmode(struct inode *inode, struct file *filp,
97 unsigned int cmd, void __user *argp)
99 struct inode *cpfile = NILFS_SB(inode->i_sb)->s_nilfs->ns_cpfile;
100 struct nilfs_transaction_info ti;
101 struct nilfs_cpmode cpmode;
104 if (!capable(CAP_SYS_ADMIN))
106 if (copy_from_user(&cpmode, argp, sizeof(cpmode)))
109 nilfs_transaction_begin(inode->i_sb, &ti, 0);
110 ret = nilfs_cpfile_change_cpmode(
111 cpfile, cpmode.cm_cno, cpmode.cm_mode);
112 nilfs_transaction_end(inode->i_sb, !ret);
117 nilfs_ioctl_delete_checkpoint(struct inode *inode, struct file *filp,
118 unsigned int cmd, void __user *argp)
120 struct inode *cpfile = NILFS_SB(inode->i_sb)->s_nilfs->ns_cpfile;
121 struct nilfs_transaction_info ti;
125 if (!capable(CAP_SYS_ADMIN))
127 if (copy_from_user(&cno, argp, sizeof(cno)))
130 nilfs_transaction_begin(inode->i_sb, &ti, 0);
131 ret = nilfs_cpfile_delete_checkpoint(cpfile, cno);
132 nilfs_transaction_end(inode->i_sb, !ret);
137 nilfs_ioctl_do_get_cpinfo(struct the_nilfs *nilfs, int index, int flags,
138 void *buf, size_t size, size_t nmembs)
140 return nilfs_cpfile_get_cpinfo(nilfs->ns_cpfile, index, flags, buf,
144 static int nilfs_ioctl_get_cpinfo(struct inode *inode, struct file *filp,
145 unsigned int cmd, void __user *argp)
147 struct the_nilfs *nilfs = NILFS_SB(inode->i_sb)->s_nilfs;
148 struct nilfs_argv argv;
149 struct nilfs_transaction_info ti;
152 if (copy_from_user(&argv, argp, sizeof(argv)))
155 nilfs_transaction_begin(inode->i_sb, &ti, 0);
156 ret = nilfs_ioctl_wrap_copy(nilfs, &argv, _IOC_DIR(cmd),
157 nilfs_ioctl_do_get_cpinfo);
158 nilfs_transaction_end(inode->i_sb, 0);
160 if (copy_to_user(argp, &argv, sizeof(argv)))
165 static int nilfs_ioctl_get_cpstat(struct inode *inode, struct file *filp,
166 unsigned int cmd, void __user *argp)
168 struct inode *cpfile = NILFS_SB(inode->i_sb)->s_nilfs->ns_cpfile;
169 struct nilfs_cpstat cpstat;
170 struct nilfs_transaction_info ti;
173 nilfs_transaction_begin(inode->i_sb, &ti, 0);
174 ret = nilfs_cpfile_get_stat(cpfile, &cpstat);
175 nilfs_transaction_end(inode->i_sb, 0);
179 if (copy_to_user(argp, &cpstat, sizeof(cpstat)))
185 nilfs_ioctl_do_get_suinfo(struct the_nilfs *nilfs, int index, int flags,
186 void *buf, size_t size, size_t nmembs)
188 return nilfs_sufile_get_suinfo(nilfs->ns_sufile, index, buf, nmembs);
191 static int nilfs_ioctl_get_suinfo(struct inode *inode, struct file *filp,
192 unsigned int cmd, void __user *argp)
194 struct the_nilfs *nilfs = NILFS_SB(inode->i_sb)->s_nilfs;
195 struct nilfs_argv argv;
196 struct nilfs_transaction_info ti;
199 if (copy_from_user(&argv, argp, sizeof(argv)))
202 nilfs_transaction_begin(inode->i_sb, &ti, 0);
203 ret = nilfs_ioctl_wrap_copy(nilfs, &argv, _IOC_DIR(cmd),
204 nilfs_ioctl_do_get_suinfo);
205 nilfs_transaction_end(inode->i_sb, 0);
207 if (copy_to_user(argp, &argv, sizeof(argv)))
212 static int nilfs_ioctl_get_sustat(struct inode *inode, struct file *filp,
213 unsigned int cmd, void __user *argp)
215 struct inode *sufile = NILFS_SB(inode->i_sb)->s_nilfs->ns_sufile;
216 struct nilfs_sustat sustat;
217 struct nilfs_transaction_info ti;
220 nilfs_transaction_begin(inode->i_sb, &ti, 0);
221 ret = nilfs_sufile_get_stat(sufile, &sustat);
222 nilfs_transaction_end(inode->i_sb, 0);
226 if (copy_to_user(argp, &sustat, sizeof(sustat)))
232 nilfs_ioctl_do_get_vinfo(struct the_nilfs *nilfs, int index, int flags,
233 void *buf, size_t size, size_t nmembs)
235 return nilfs_dat_get_vinfo(nilfs_dat_inode(nilfs), buf, nmembs);
238 static int nilfs_ioctl_get_vinfo(struct inode *inode, struct file *filp,
239 unsigned int cmd, void __user *argp)
241 struct the_nilfs *nilfs = NILFS_SB(inode->i_sb)->s_nilfs;
242 struct nilfs_argv argv;
243 struct nilfs_transaction_info ti;
246 if (copy_from_user(&argv, argp, sizeof(argv)))
249 nilfs_transaction_begin(inode->i_sb, &ti, 0);
250 ret = nilfs_ioctl_wrap_copy(nilfs, &argv, _IOC_DIR(cmd),
251 nilfs_ioctl_do_get_vinfo);
252 nilfs_transaction_end(inode->i_sb, 0);
254 if (copy_to_user(argp, &argv, sizeof(argv)))
260 nilfs_ioctl_do_get_bdescs(struct the_nilfs *nilfs, int index, int flags,
261 void *buf, size_t size, size_t nmembs)
263 struct inode *dat = nilfs_dat_inode(nilfs);
264 struct nilfs_bmap *bmap = NILFS_I(dat)->i_bmap;
265 struct nilfs_bdesc *bdescs = buf;
268 for (i = 0; i < nmembs; i++) {
269 ret = nilfs_bmap_lookup_at_level(bmap,
271 bdescs[i].bd_level + 1,
272 &bdescs[i].bd_blocknr);
276 bdescs[i].bd_blocknr = 0;
282 static int nilfs_ioctl_get_bdescs(struct inode *inode, struct file *filp,
283 unsigned int cmd, void __user *argp)
285 struct the_nilfs *nilfs = NILFS_SB(inode->i_sb)->s_nilfs;
286 struct nilfs_argv argv;
287 struct nilfs_transaction_info ti;
290 if (copy_from_user(&argv, argp, sizeof(argv)))
293 nilfs_transaction_begin(inode->i_sb, &ti, 0);
294 ret = nilfs_ioctl_wrap_copy(nilfs, &argv, _IOC_DIR(cmd),
295 nilfs_ioctl_do_get_bdescs);
296 nilfs_transaction_end(inode->i_sb, 0);
298 if (copy_to_user(argp, &argv, sizeof(argv)))
303 static int nilfs_ioctl_move_inode_block(struct inode *inode,
304 struct nilfs_vdesc *vdesc,
305 struct list_head *buffers)
307 struct buffer_head *bh;
310 if (vdesc->vd_flags == 0)
311 ret = nilfs_gccache_submit_read_data(
312 inode, vdesc->vd_offset, vdesc->vd_blocknr,
313 vdesc->vd_vblocknr, &bh);
315 ret = nilfs_gccache_submit_read_node(
316 inode, vdesc->vd_blocknr, vdesc->vd_vblocknr, &bh);
318 if (unlikely(ret < 0)) {
321 "%s: invalid virtual block address (%s): "
322 "ino=%llu, cno=%llu, offset=%llu, "
323 "blocknr=%llu, vblocknr=%llu\n",
324 __func__, vdesc->vd_flags ? "node" : "data",
325 (unsigned long long)vdesc->vd_ino,
326 (unsigned long long)vdesc->vd_cno,
327 (unsigned long long)vdesc->vd_offset,
328 (unsigned long long)vdesc->vd_blocknr,
329 (unsigned long long)vdesc->vd_vblocknr);
332 bh->b_private = vdesc;
333 list_add_tail(&bh->b_assoc_buffers, buffers);
338 nilfs_ioctl_do_move_blocks(struct the_nilfs *nilfs, int index, int flags,
339 void *buf, size_t size, size_t nmembs)
342 struct nilfs_vdesc *vdesc;
343 struct buffer_head *bh, *n;
349 for (i = 0, vdesc = buf; i < nmembs; ) {
352 inode = nilfs_gc_iget(nilfs, ino, cno);
353 if (unlikely(inode == NULL)) {
358 ret = nilfs_ioctl_move_inode_block(inode, vdesc,
360 if (unlikely(ret < 0))
363 } while (++i < nmembs &&
364 vdesc->vd_ino == ino && vdesc->vd_cno == cno);
367 list_for_each_entry_safe(bh, n, &buffers, b_assoc_buffers) {
368 ret = nilfs_gccache_wait_and_mark_dirty(bh);
369 if (unlikely(ret < 0)) {
370 if (ret == -EEXIST) {
371 vdesc = bh->b_private;
373 "%s: conflicting %s buffer: "
374 "ino=%llu, cno=%llu, offset=%llu, "
375 "blocknr=%llu, vblocknr=%llu\n",
377 vdesc->vd_flags ? "node" : "data",
378 (unsigned long long)vdesc->vd_ino,
379 (unsigned long long)vdesc->vd_cno,
380 (unsigned long long)vdesc->vd_offset,
381 (unsigned long long)vdesc->vd_blocknr,
382 (unsigned long long)vdesc->vd_vblocknr);
386 list_del_init(&bh->b_assoc_buffers);
387 bh->b_private = NULL;
393 list_for_each_entry_safe(bh, n, &buffers, b_assoc_buffers) {
394 list_del_init(&bh->b_assoc_buffers);
395 bh->b_private = NULL;
401 static inline int nilfs_ioctl_move_blocks(struct the_nilfs *nilfs,
402 struct nilfs_argv *argv,
405 return nilfs_ioctl_wrap_copy(nilfs, argv, dir,
406 nilfs_ioctl_do_move_blocks);
410 nilfs_ioctl_do_delete_checkpoints(struct the_nilfs *nilfs, int index,
411 int flags, void *buf, size_t size,
414 struct inode *cpfile = nilfs->ns_cpfile;
415 struct nilfs_period *periods = buf;
418 for (i = 0; i < nmembs; i++) {
419 ret = nilfs_cpfile_delete_checkpoints(
420 cpfile, periods[i].p_start, periods[i].p_end);
427 static inline int nilfs_ioctl_delete_checkpoints(struct the_nilfs *nilfs,
428 struct nilfs_argv *argv,
431 return nilfs_ioctl_wrap_copy(nilfs, argv, dir,
432 nilfs_ioctl_do_delete_checkpoints);
436 nilfs_ioctl_do_free_vblocknrs(struct the_nilfs *nilfs, int index, int flags,
437 void *buf, size_t size, size_t nmembs)
439 int ret = nilfs_dat_freev(nilfs_dat_inode(nilfs), buf, nmembs);
441 return (ret < 0) ? ret : nmembs;
444 static inline int nilfs_ioctl_free_vblocknrs(struct the_nilfs *nilfs,
445 struct nilfs_argv *argv,
448 return nilfs_ioctl_wrap_copy(nilfs, argv, dir,
449 nilfs_ioctl_do_free_vblocknrs);
453 nilfs_ioctl_do_mark_blocks_dirty(struct the_nilfs *nilfs, int index, int flags,
454 void *buf, size_t size, size_t nmembs)
456 struct inode *dat = nilfs_dat_inode(nilfs);
457 struct nilfs_bmap *bmap = NILFS_I(dat)->i_bmap;
458 struct nilfs_bdesc *bdescs = buf;
461 for (i = 0; i < nmembs; i++) {
462 /* XXX: use macro or inline func to check liveness */
463 ret = nilfs_bmap_lookup_at_level(bmap,
465 bdescs[i].bd_level + 1,
466 &bdescs[i].bd_blocknr);
470 bdescs[i].bd_blocknr = 0;
472 if (bdescs[i].bd_blocknr != bdescs[i].bd_oblocknr)
473 /* skip dead block */
475 if (bdescs[i].bd_level == 0) {
476 ret = nilfs_mdt_mark_block_dirty(dat,
477 bdescs[i].bd_offset);
479 BUG_ON(ret == -ENOENT);
483 ret = nilfs_bmap_mark(bmap, bdescs[i].bd_offset,
486 BUG_ON(ret == -ENOENT);
494 static inline int nilfs_ioctl_mark_blocks_dirty(struct the_nilfs *nilfs,
495 struct nilfs_argv *argv,
498 return nilfs_ioctl_wrap_copy(nilfs, argv, dir,
499 nilfs_ioctl_do_mark_blocks_dirty);
503 nilfs_ioctl_do_free_segments(struct the_nilfs *nilfs, int index, int flags,
504 void *buf, size_t size, size_t nmembs)
506 struct nilfs_sb_info *sbi = nilfs_get_writer(nilfs);
510 ret = nilfs_segctor_add_segments_to_be_freed(
511 NILFS_SC(sbi), buf, nmembs);
512 nilfs_put_writer(nilfs);
514 return (ret < 0) ? ret : nmembs;
517 static inline int nilfs_ioctl_free_segments(struct the_nilfs *nilfs,
518 struct nilfs_argv *argv,
521 return nilfs_ioctl_wrap_copy(nilfs, argv, dir,
522 nilfs_ioctl_do_free_segments);
525 int nilfs_ioctl_prepare_clean_segments(struct the_nilfs *nilfs,
528 struct nilfs_argv argv[5];
531 if (copy_from_user(argv, argp, sizeof(argv)))
535 ret = nilfs_ioctl_move_blocks(nilfs, &argv[0], dir);
538 ret = nilfs_ioctl_delete_checkpoints(nilfs, &argv[1], dir);
541 ret = nilfs_ioctl_free_vblocknrs(nilfs, &argv[2], dir);
544 ret = nilfs_ioctl_mark_blocks_dirty(nilfs, &argv[3], dir);
547 ret = nilfs_ioctl_free_segments(nilfs, &argv[4], dir);
554 BUG(); /* XXX: not implemented yet */
556 BUG();/* XXX: not implemented yet */
558 BUG();/* XXX: not implemented yet */
560 nilfs_remove_all_gcinode(nilfs);
564 static int nilfs_ioctl_clean_segments(struct inode *inode, struct file *filp,
565 unsigned int cmd, void __user *argp)
569 if (!capable(CAP_SYS_ADMIN))
572 ret = nilfs_clean_segments(inode->i_sb, argp);
573 clear_nilfs_cond_nongc_write(NILFS_SB(inode->i_sb)->s_nilfs);
577 static int nilfs_ioctl_test_cond(struct the_nilfs *nilfs, int cond)
579 return (cond & NILFS_TIMEDWAIT_SEG_WRITE) &&
580 nilfs_cond_nongc_write(nilfs);
583 static void nilfs_ioctl_clear_cond(struct the_nilfs *nilfs, int cond)
585 if (cond & NILFS_TIMEDWAIT_SEG_WRITE)
586 clear_nilfs_cond_nongc_write(nilfs);
589 static int nilfs_ioctl_timedwait(struct inode *inode, struct file *filp,
590 unsigned int cmd, void __user *argp)
592 struct the_nilfs *nilfs = NILFS_SB(inode->i_sb)->s_nilfs;
593 struct nilfs_wait_cond wc;
596 if (!capable(CAP_SYS_ADMIN))
598 if (copy_from_user(&wc, argp, sizeof(wc)))
603 wait_event_interruptible_timeout(
604 nilfs->ns_cleanerd_wq,
605 nilfs_ioctl_test_cond(nilfs, wc.wc_cond),
606 timespec_to_jiffies(&wc.wc_timeout)) :
607 wait_event_interruptible(
608 nilfs->ns_cleanerd_wq,
609 nilfs_ioctl_test_cond(nilfs, wc.wc_cond));
611 nilfs_ioctl_clear_cond(nilfs, wc.wc_cond);
614 jiffies_to_timespec(ret, &wc.wc_timeout);
615 if (copy_to_user(argp, &wc, sizeof(wc)))
622 return wc.wc_flags ? -ETIME : 0;
625 static int nilfs_ioctl_sync(struct inode *inode, struct file *filp,
626 unsigned int cmd, void __user *argp)
631 ret = nilfs_construct_segment(inode->i_sb);
636 cno = NILFS_SB(inode->i_sb)->s_nilfs->ns_cno - 1;
637 if (copy_to_user(argp, &cno, sizeof(cno)))
643 int nilfs_ioctl(struct inode *inode, struct file *filp, unsigned int cmd,
646 void __user *argp = (void * __user *)arg;
649 case NILFS_IOCTL_CHANGE_CPMODE:
650 return nilfs_ioctl_change_cpmode(inode, filp, cmd, argp);
651 case NILFS_IOCTL_DELETE_CHECKPOINT:
652 return nilfs_ioctl_delete_checkpoint(inode, filp, cmd, argp);
653 case NILFS_IOCTL_GET_CPINFO:
654 return nilfs_ioctl_get_cpinfo(inode, filp, cmd, argp);
655 case NILFS_IOCTL_GET_CPSTAT:
656 return nilfs_ioctl_get_cpstat(inode, filp, cmd, argp);
657 case NILFS_IOCTL_GET_SUINFO:
658 return nilfs_ioctl_get_suinfo(inode, filp, cmd, argp);
659 case NILFS_IOCTL_GET_SUSTAT:
660 return nilfs_ioctl_get_sustat(inode, filp, cmd, argp);
661 case NILFS_IOCTL_GET_VINFO:
662 /* XXX: rename to ??? */
663 return nilfs_ioctl_get_vinfo(inode, filp, cmd, argp);
664 case NILFS_IOCTL_GET_BDESCS:
665 return nilfs_ioctl_get_bdescs(inode, filp, cmd, argp);
666 case NILFS_IOCTL_CLEAN_SEGMENTS:
667 return nilfs_ioctl_clean_segments(inode, filp, cmd, argp);
668 case NILFS_IOCTL_TIMEDWAIT:
669 return nilfs_ioctl_timedwait(inode, filp, cmd, argp);
670 case NILFS_IOCTL_SYNC:
671 return nilfs_ioctl_sync(inode, filp, cmd, argp);
679 #include <linux/compat.h>
681 static int nilfs_compat_locked_ioctl(struct inode *inode, struct file *filp,
682 unsigned int cmd, unsigned long arg)
687 ret = nilfs_ioctl(inode, filp, cmd, arg);
693 nilfs_compat_ioctl_uargv32_to_uargv(struct nilfs_argv32 __user *uargv32,
694 struct nilfs_argv __user *uargv)
697 compat_size_t nmembs, size;
698 compat_int_t index, flags;
700 if (get_user(base, &uargv32->v_base) ||
701 put_user(compat_ptr(base), &uargv->v_base) ||
702 get_user(nmembs, &uargv32->v_nmembs) ||
703 put_user(nmembs, &uargv->v_nmembs) ||
704 get_user(size, &uargv32->v_size) ||
705 put_user(size, &uargv->v_size) ||
706 get_user(index, &uargv32->v_index) ||
707 put_user(index, &uargv->v_index) ||
708 get_user(flags, &uargv32->v_flags) ||
709 put_user(flags, &uargv->v_flags))
715 nilfs_compat_ioctl_uargv_to_uargv32(struct nilfs_argv __user *uargv,
716 struct nilfs_argv32 __user *uargv32)
720 if (get_user(nmembs, &uargv->v_nmembs) ||
721 put_user(nmembs, &uargv32->v_nmembs))
727 nilfs_compat_ioctl_get_by_argv(struct inode *inode, struct file *filp,
728 unsigned int cmd, unsigned long arg)
730 struct nilfs_argv __user *uargv;
731 struct nilfs_argv32 __user *uargv32;
734 uargv = compat_alloc_user_space(sizeof(struct nilfs_argv));
735 uargv32 = compat_ptr(arg);
736 ret = nilfs_compat_ioctl_uargv32_to_uargv(uargv32, uargv);
740 ret = nilfs_compat_locked_ioctl(inode, filp, cmd, (unsigned long)uargv);
744 return nilfs_compat_ioctl_uargv_to_uargv32(uargv, uargv32);
748 nilfs_compat_ioctl_change_cpmode(struct inode *inode, struct file *filp,
749 unsigned int cmd, unsigned long arg)
751 struct nilfs_cpmode __user *ucpmode;
752 struct nilfs_cpmode32 __user *ucpmode32;
755 ucpmode = compat_alloc_user_space(sizeof(struct nilfs_cpmode));
756 ucpmode32 = compat_ptr(arg);
757 if (copy_in_user(&ucpmode->cm_cno, &ucpmode32->cm_cno,
759 get_user(mode, &ucpmode32->cm_mode) ||
760 put_user(mode, &ucpmode->cm_mode))
763 return nilfs_compat_locked_ioctl(
764 inode, filp, cmd, (unsigned long)ucpmode);
769 nilfs_compat_ioctl_delete_checkpoint(struct inode *inode, struct file *filp,
770 unsigned int cmd, unsigned long arg)
772 return nilfs_compat_locked_ioctl(inode, filp, cmd, arg);
776 nilfs_compat_ioctl_get_cpinfo(struct inode *inode, struct file *filp,
777 unsigned int cmd, unsigned long arg)
779 return nilfs_compat_ioctl_get_by_argv(inode, filp, cmd, arg);
783 nilfs_compat_ioctl_get_cpstat(struct inode *inode, struct file *filp,
784 unsigned int cmd, unsigned long arg)
786 return nilfs_compat_locked_ioctl(inode, filp, cmd, arg);
790 nilfs_compat_ioctl_get_suinfo(struct inode *inode, struct file *filp,
791 unsigned int cmd, unsigned long arg)
793 return nilfs_compat_ioctl_get_by_argv(inode, filp, cmd, arg);
797 nilfs_compat_ioctl_get_sustat(struct inode *inode, struct file *filp,
798 unsigned int cmd, unsigned long arg)
800 struct nilfs_sustat __user *usustat;
801 struct nilfs_sustat32 __user *usustat32;
802 time_t ctime, nongc_ctime;
805 usustat = compat_alloc_user_space(sizeof(struct nilfs_sustat));
806 ret = nilfs_compat_locked_ioctl(inode, filp, cmd,
807 (unsigned long)usustat);
811 usustat32 = compat_ptr(arg);
812 if (copy_in_user(&usustat32->ss_nsegs, &usustat->ss_nsegs,
814 copy_in_user(&usustat32->ss_ncleansegs, &usustat->ss_ncleansegs,
816 copy_in_user(&usustat32->ss_ndirtysegs, &usustat->ss_ndirtysegs,
818 get_user(ctime, &usustat->ss_ctime) ||
819 put_user(ctime, &usustat32->ss_ctime) ||
820 get_user(nongc_ctime, &usustat->ss_nongc_ctime) ||
821 put_user(nongc_ctime, &usustat32->ss_nongc_ctime))
827 nilfs_compat_ioctl_get_vinfo(struct inode *inode, struct file *filp,
828 unsigned int cmd, unsigned long arg)
830 return nilfs_compat_ioctl_get_by_argv(inode, filp, cmd, arg);
834 nilfs_compat_ioctl_get_bdescs(struct inode *inode, struct file *filp,
835 unsigned int cmd, unsigned long arg)
837 return nilfs_compat_ioctl_get_by_argv(inode, filp, cmd, arg);
841 nilfs_compat_ioctl_clean_segments(struct inode *inode, struct file *filp,
842 unsigned int cmd, unsigned long arg)
844 struct nilfs_argv __user *uargv;
845 struct nilfs_argv32 __user *uargv32;
848 uargv = compat_alloc_user_space(sizeof(struct nilfs_argv) * 5);
849 uargv32 = compat_ptr(arg);
850 for (i = 0; i < 5; i++) {
851 ret = nilfs_compat_ioctl_uargv32_to_uargv(&uargv32[i],
856 return nilfs_compat_locked_ioctl(
857 inode, filp, cmd, (unsigned long)uargv);
861 nilfs_compat_ioctl_timedwait(struct inode *inode, struct file *filp,
862 unsigned int cmd, unsigned long arg)
864 struct nilfs_wait_cond __user *uwcond;
865 struct nilfs_wait_cond32 __user *uwcond32;
867 int cond, flags, ret;
869 uwcond = compat_alloc_user_space(sizeof(struct nilfs_wait_cond));
870 uwcond32 = compat_ptr(arg);
871 if (get_user(cond, &uwcond32->wc_cond) ||
872 put_user(cond, &uwcond->wc_cond) ||
873 get_user(flags, &uwcond32->wc_flags) ||
874 put_user(flags, &uwcond->wc_flags) ||
875 get_user(ts.tv_sec, &uwcond32->wc_timeout.tv_sec) ||
876 get_user(ts.tv_nsec, &uwcond32->wc_timeout.tv_nsec) ||
877 put_user(ts.tv_sec, &uwcond->wc_timeout.tv_sec) ||
878 put_user(ts.tv_nsec, &uwcond->wc_timeout.tv_nsec))
881 ret = nilfs_compat_locked_ioctl(inode, filp, cmd,
882 (unsigned long)uwcond);
886 if (get_user(ts.tv_sec, &uwcond->wc_timeout.tv_sec) ||
887 get_user(ts.tv_nsec, &uwcond->wc_timeout.tv_nsec) ||
888 put_user(ts.tv_sec, &uwcond32->wc_timeout.tv_sec) ||
889 put_user(ts.tv_nsec, &uwcond32->wc_timeout.tv_nsec))
895 static int nilfs_compat_ioctl_sync(struct inode *inode, struct file *filp,
896 unsigned int cmd, unsigned long arg)
898 return nilfs_compat_locked_ioctl(inode, filp, cmd, arg);
901 long nilfs_compat_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
903 struct inode *inode = filp->f_dentry->d_inode;
906 case NILFS_IOCTL32_CHANGE_CPMODE:
907 return nilfs_compat_ioctl_change_cpmode(
908 inode, filp, NILFS_IOCTL_CHANGE_CPMODE, arg);
909 case NILFS_IOCTL_DELETE_CHECKPOINT:
910 return nilfs_compat_ioctl_delete_checkpoint(
911 inode, filp, cmd, arg);
912 case NILFS_IOCTL32_GET_CPINFO:
913 return nilfs_compat_ioctl_get_cpinfo(
914 inode, filp, NILFS_IOCTL_GET_CPINFO, arg);
915 case NILFS_IOCTL_GET_CPSTAT:
916 return nilfs_compat_ioctl_get_cpstat(inode, filp, cmd, arg);
917 case NILFS_IOCTL32_GET_SUINFO:
918 return nilfs_compat_ioctl_get_suinfo(
919 inode, filp, NILFS_IOCTL_GET_SUINFO, arg);
920 case NILFS_IOCTL32_GET_SUSTAT:
921 return nilfs_compat_ioctl_get_sustat(
922 inode, filp, NILFS_IOCTL_GET_SUSTAT, arg);
923 case NILFS_IOCTL32_GET_VINFO:
924 return nilfs_compat_ioctl_get_vinfo(
925 inode, filp, NILFS_IOCTL_GET_VINFO, arg);
926 case NILFS_IOCTL32_GET_BDESCS:
927 return nilfs_compat_ioctl_get_bdescs(
928 inode, filp, NILFS_IOCTL_GET_BDESCS, arg);
929 case NILFS_IOCTL32_CLEAN_SEGMENTS:
930 return nilfs_compat_ioctl_clean_segments(
931 inode, filp, NILFS_IOCTL_CLEAN_SEGMENTS, arg);
932 case NILFS_IOCTL32_TIMEDWAIT:
933 return nilfs_compat_ioctl_timedwait(
934 inode, filp, NILFS_IOCTL_TIMEDWAIT, arg);
935 case NILFS_IOCTL_SYNC:
936 return nilfs_compat_ioctl_sync(inode, filp, cmd, arg);