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6#include "xfs.h"
7#include "xfs_fs.h"
8#include "xfs_shared.h"
9#include "xfs_format.h"
10#include "xfs_log_format.h"
11#include "xfs_trans_resv.h"
12#include "xfs_mount.h"
13#include "xfs_inode.h"
14#include "xfs_btree.h"
15#include "xfs_ialloc.h"
16#include "xfs_ialloc_btree.h"
17#include "xfs_iwalk.h"
18#include "xfs_itable.h"
19#include "xfs_error.h"
20#include "xfs_icache.h"
21#include "xfs_health.h"
22#include "xfs_trans.h"
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31
32
33struct xfs_bstat_chunk {
34 bulkstat_one_fmt_pf formatter;
35 struct xfs_ibulk *breq;
36 struct xfs_bulkstat *buf;
37};
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54
55STATIC int
56xfs_bulkstat_one_int(
57 struct xfs_mount *mp,
58 struct user_namespace *mnt_userns,
59 struct xfs_trans *tp,
60 xfs_ino_t ino,
61 struct xfs_bstat_chunk *bc)
62{
63 struct user_namespace *sb_userns = mp->m_super->s_user_ns;
64 struct xfs_inode *ip;
65 struct inode *inode;
66 struct xfs_bulkstat *buf = bc->buf;
67 int error = -EINVAL;
68
69 if (xfs_internal_inum(mp, ino))
70 goto out_advance;
71
72 error = xfs_iget(mp, tp, ino,
73 (XFS_IGET_DONTCACHE | XFS_IGET_UNTRUSTED),
74 XFS_ILOCK_SHARED, &ip);
75 if (error == -ENOENT || error == -EINVAL)
76 goto out_advance;
77 if (error)
78 goto out;
79
80 ASSERT(ip != NULL);
81 ASSERT(ip->i_imap.im_blkno != 0);
82 inode = VFS_I(ip);
83
84
85
86
87 buf->bs_projectid = ip->i_projid;
88 buf->bs_ino = ino;
89 buf->bs_uid = from_kuid(sb_userns, i_uid_into_mnt(mnt_userns, inode));
90 buf->bs_gid = from_kgid(sb_userns, i_gid_into_mnt(mnt_userns, inode));
91 buf->bs_size = ip->i_disk_size;
92
93 buf->bs_nlink = inode->i_nlink;
94 buf->bs_atime = inode->i_atime.tv_sec;
95 buf->bs_atime_nsec = inode->i_atime.tv_nsec;
96 buf->bs_mtime = inode->i_mtime.tv_sec;
97 buf->bs_mtime_nsec = inode->i_mtime.tv_nsec;
98 buf->bs_ctime = inode->i_ctime.tv_sec;
99 buf->bs_ctime_nsec = inode->i_ctime.tv_nsec;
100 buf->bs_gen = inode->i_generation;
101 buf->bs_mode = inode->i_mode;
102
103 buf->bs_xflags = xfs_ip2xflags(ip);
104 buf->bs_extsize_blks = ip->i_extsize;
105 buf->bs_extents = xfs_ifork_nextents(&ip->i_df);
106 xfs_bulkstat_health(ip, buf);
107 buf->bs_aextents = xfs_ifork_nextents(ip->i_afp);
108 buf->bs_forkoff = XFS_IFORK_BOFF(ip);
109 buf->bs_version = XFS_BULKSTAT_VERSION_V5;
110
111 if (xfs_has_v3inodes(mp)) {
112 buf->bs_btime = ip->i_crtime.tv_sec;
113 buf->bs_btime_nsec = ip->i_crtime.tv_nsec;
114 if (ip->i_diflags2 & XFS_DIFLAG2_COWEXTSIZE)
115 buf->bs_cowextsize_blks = ip->i_cowextsize;
116 }
117
118 switch (ip->i_df.if_format) {
119 case XFS_DINODE_FMT_DEV:
120 buf->bs_rdev = sysv_encode_dev(inode->i_rdev);
121 buf->bs_blksize = BLKDEV_IOSIZE;
122 buf->bs_blocks = 0;
123 break;
124 case XFS_DINODE_FMT_LOCAL:
125 buf->bs_rdev = 0;
126 buf->bs_blksize = mp->m_sb.sb_blocksize;
127 buf->bs_blocks = 0;
128 break;
129 case XFS_DINODE_FMT_EXTENTS:
130 case XFS_DINODE_FMT_BTREE:
131 buf->bs_rdev = 0;
132 buf->bs_blksize = mp->m_sb.sb_blocksize;
133 buf->bs_blocks = ip->i_nblocks + ip->i_delayed_blks;
134 break;
135 }
136 xfs_iunlock(ip, XFS_ILOCK_SHARED);
137 xfs_irele(ip);
138
139 error = bc->formatter(bc->breq, buf);
140 if (error == -ECANCELED)
141 goto out_advance;
142 if (error)
143 goto out;
144
145out_advance:
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152 bc->breq->startino = ino + 1;
153out:
154 return error;
155}
156
157
158int
159xfs_bulkstat_one(
160 struct xfs_ibulk *breq,
161 bulkstat_one_fmt_pf formatter)
162{
163 struct xfs_bstat_chunk bc = {
164 .formatter = formatter,
165 .breq = breq,
166 };
167 struct xfs_trans *tp;
168 int error;
169
170 if (breq->mnt_userns != &init_user_ns) {
171 xfs_warn_ratelimited(breq->mp,
172 "bulkstat not supported inside of idmapped mounts.");
173 return -EINVAL;
174 }
175
176 ASSERT(breq->icount == 1);
177
178 bc.buf = kmem_zalloc(sizeof(struct xfs_bulkstat),
179 KM_MAYFAIL);
180 if (!bc.buf)
181 return -ENOMEM;
182
183
184
185
186
187 error = xfs_trans_alloc_empty(breq->mp, &tp);
188 if (error)
189 goto out;
190
191 error = xfs_bulkstat_one_int(breq->mp, breq->mnt_userns, tp,
192 breq->startino, &bc);
193 xfs_trans_cancel(tp);
194out:
195 kmem_free(bc.buf);
196
197
198
199
200
201 if (error == -ECANCELED)
202 error = 0;
203
204 return error;
205}
206
207static int
208xfs_bulkstat_iwalk(
209 struct xfs_mount *mp,
210 struct xfs_trans *tp,
211 xfs_ino_t ino,
212 void *data)
213{
214 struct xfs_bstat_chunk *bc = data;
215 int error;
216
217 error = xfs_bulkstat_one_int(mp, bc->breq->mnt_userns, tp, ino, data);
218
219 if (error == -ENOENT || error == -EINVAL)
220 return 0;
221 return error;
222}
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235
236static inline bool
237xfs_bulkstat_already_done(
238 struct xfs_mount *mp,
239 xfs_ino_t startino)
240{
241 xfs_agnumber_t agno = XFS_INO_TO_AGNO(mp, startino);
242 xfs_agino_t agino = XFS_INO_TO_AGINO(mp, startino);
243
244 return agno >= mp->m_sb.sb_agcount ||
245 startino != XFS_AGINO_TO_INO(mp, agno, agino);
246}
247
248
249int
250xfs_bulkstat(
251 struct xfs_ibulk *breq,
252 bulkstat_one_fmt_pf formatter)
253{
254 struct xfs_bstat_chunk bc = {
255 .formatter = formatter,
256 .breq = breq,
257 };
258 struct xfs_trans *tp;
259 int error;
260
261 if (breq->mnt_userns != &init_user_ns) {
262 xfs_warn_ratelimited(breq->mp,
263 "bulkstat not supported inside of idmapped mounts.");
264 return -EINVAL;
265 }
266 if (xfs_bulkstat_already_done(breq->mp, breq->startino))
267 return 0;
268
269 bc.buf = kmem_zalloc(sizeof(struct xfs_bulkstat),
270 KM_MAYFAIL);
271 if (!bc.buf)
272 return -ENOMEM;
273
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277
278 error = xfs_trans_alloc_empty(breq->mp, &tp);
279 if (error)
280 goto out;
281
282 error = xfs_iwalk(breq->mp, tp, breq->startino, breq->flags,
283 xfs_bulkstat_iwalk, breq->icount, &bc);
284 xfs_trans_cancel(tp);
285out:
286 kmem_free(bc.buf);
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293
294
295 if (breq->ocount > 0)
296 error = 0;
297
298 return error;
299}
300
301
302void
303xfs_bulkstat_to_bstat(
304 struct xfs_mount *mp,
305 struct xfs_bstat *bs1,
306 const struct xfs_bulkstat *bstat)
307{
308
309 memset(bs1, 0, sizeof(struct xfs_bstat));
310 bs1->bs_ino = bstat->bs_ino;
311 bs1->bs_mode = bstat->bs_mode;
312 bs1->bs_nlink = bstat->bs_nlink;
313 bs1->bs_uid = bstat->bs_uid;
314 bs1->bs_gid = bstat->bs_gid;
315 bs1->bs_rdev = bstat->bs_rdev;
316 bs1->bs_blksize = bstat->bs_blksize;
317 bs1->bs_size = bstat->bs_size;
318 bs1->bs_atime.tv_sec = bstat->bs_atime;
319 bs1->bs_mtime.tv_sec = bstat->bs_mtime;
320 bs1->bs_ctime.tv_sec = bstat->bs_ctime;
321 bs1->bs_atime.tv_nsec = bstat->bs_atime_nsec;
322 bs1->bs_mtime.tv_nsec = bstat->bs_mtime_nsec;
323 bs1->bs_ctime.tv_nsec = bstat->bs_ctime_nsec;
324 bs1->bs_blocks = bstat->bs_blocks;
325 bs1->bs_xflags = bstat->bs_xflags;
326 bs1->bs_extsize = XFS_FSB_TO_B(mp, bstat->bs_extsize_blks);
327 bs1->bs_extents = bstat->bs_extents;
328 bs1->bs_gen = bstat->bs_gen;
329 bs1->bs_projid_lo = bstat->bs_projectid & 0xFFFF;
330 bs1->bs_forkoff = bstat->bs_forkoff;
331 bs1->bs_projid_hi = bstat->bs_projectid >> 16;
332 bs1->bs_sick = bstat->bs_sick;
333 bs1->bs_checked = bstat->bs_checked;
334 bs1->bs_cowextsize = XFS_FSB_TO_B(mp, bstat->bs_cowextsize_blks);
335 bs1->bs_dmevmask = 0;
336 bs1->bs_dmstate = 0;
337 bs1->bs_aextents = bstat->bs_aextents;
338}
339
340struct xfs_inumbers_chunk {
341 inumbers_fmt_pf formatter;
342 struct xfs_ibulk *breq;
343};
344
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360STATIC int
361xfs_inumbers_walk(
362 struct xfs_mount *mp,
363 struct xfs_trans *tp,
364 xfs_agnumber_t agno,
365 const struct xfs_inobt_rec_incore *irec,
366 void *data)
367{
368 struct xfs_inumbers inogrp = {
369 .xi_startino = XFS_AGINO_TO_INO(mp, agno, irec->ir_startino),
370 .xi_alloccount = irec->ir_count - irec->ir_freecount,
371 .xi_allocmask = ~irec->ir_free,
372 .xi_version = XFS_INUMBERS_VERSION_V5,
373 };
374 struct xfs_inumbers_chunk *ic = data;
375 int error;
376
377 error = ic->formatter(ic->breq, &inogrp);
378 if (error && error != -ECANCELED)
379 return error;
380
381 ic->breq->startino = XFS_AGINO_TO_INO(mp, agno, irec->ir_startino) +
382 XFS_INODES_PER_CHUNK;
383 return error;
384}
385
386
387
388
389int
390xfs_inumbers(
391 struct xfs_ibulk *breq,
392 inumbers_fmt_pf formatter)
393{
394 struct xfs_inumbers_chunk ic = {
395 .formatter = formatter,
396 .breq = breq,
397 };
398 struct xfs_trans *tp;
399 int error = 0;
400
401 if (xfs_bulkstat_already_done(breq->mp, breq->startino))
402 return 0;
403
404
405
406
407
408 error = xfs_trans_alloc_empty(breq->mp, &tp);
409 if (error)
410 goto out;
411
412 error = xfs_inobt_walk(breq->mp, tp, breq->startino, breq->flags,
413 xfs_inumbers_walk, breq->icount, &ic);
414 xfs_trans_cancel(tp);
415out:
416
417
418
419
420
421
422
423
424 if (breq->ocount > 0)
425 error = 0;
426
427 return error;
428}
429
430
431void
432xfs_inumbers_to_inogrp(
433 struct xfs_inogrp *ig1,
434 const struct xfs_inumbers *ig)
435{
436
437 memset(ig1, 0, sizeof(struct xfs_inogrp));
438 ig1->xi_startino = ig->xi_startino;
439 ig1->xi_alloccount = ig->xi_alloccount;
440 ig1->xi_allocmask = ig->xi_allocmask;
441}
442