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-rw-r--r--fs/xfs/xfs_utils.c83
1 files changed, 0 insertions, 83 deletions
diff --git a/fs/xfs/xfs_utils.c b/fs/xfs/xfs_utils.c
index 102ce4898ab7..b7d5769d2df0 100644
--- a/fs/xfs/xfs_utils.c
+++ b/fs/xfs/xfs_utils.c
@@ -320,86 +320,3 @@ xfs_bumplink(
320 xfs_trans_log_inode(tp, ip, XFS_ILOG_CORE); 320 xfs_trans_log_inode(tp, ip, XFS_ILOG_CORE);
321 return 0; 321 return 0;
322} 322}
323
324/*
325 * Try to truncate the given file to 0 length. Currently called
326 * only out of xfs_remove when it has to truncate a file to free
327 * up space for the remove to proceed.
328 */
329int
330xfs_truncate_file(
331 xfs_mount_t *mp,
332 xfs_inode_t *ip)
333{
334 xfs_trans_t *tp;
335 int error;
336
337#ifdef QUOTADEBUG
338 /*
339 * This is called to truncate the quotainodes too.
340 */
341 if (XFS_IS_UQUOTA_ON(mp)) {
342 if (ip->i_ino != mp->m_sb.sb_uquotino)
343 ASSERT(ip->i_udquot);
344 }
345 if (XFS_IS_OQUOTA_ON(mp)) {
346 if (ip->i_ino != mp->m_sb.sb_gquotino)
347 ASSERT(ip->i_gdquot);
348 }
349#endif
350 /*
351 * Make the call to xfs_itruncate_start before starting the
352 * transaction, because we cannot make the call while we're
353 * in a transaction.
354 */
355 xfs_ilock(ip, XFS_IOLOCK_EXCL);
356 error = xfs_itruncate_start(ip, XFS_ITRUNC_DEFINITE, (xfs_fsize_t)0);
357 if (error) {
358 xfs_iunlock(ip, XFS_IOLOCK_EXCL);
359 return error;
360 }
361
362 tp = xfs_trans_alloc(mp, XFS_TRANS_TRUNCATE_FILE);
363 if ((error = xfs_trans_reserve(tp, 0, XFS_ITRUNCATE_LOG_RES(mp), 0,
364 XFS_TRANS_PERM_LOG_RES,
365 XFS_ITRUNCATE_LOG_COUNT))) {
366 xfs_trans_cancel(tp, 0);
367 xfs_iunlock(ip, XFS_IOLOCK_EXCL);
368 return error;
369 }
370
371 /*
372 * Follow the normal truncate locking protocol. Since we
373 * hold the inode in the transaction, we know that its number
374 * of references will stay constant.
375 */
376 xfs_ilock(ip, XFS_ILOCK_EXCL);
377 xfs_trans_ijoin(tp, ip);
378
379 /*
380 * Signal a sync xaction. The only case where that isn't
381 * the case is if we're truncating an already unlinked file
382 * on a wsync fs. In that case, we know the blocks can't
383 * reappear in the file because the links to file are
384 * permanently toast. Currently, we're always going to
385 * want a sync transaction because this code is being
386 * called from places where nlink is guaranteed to be 1
387 * but I'm leaving the tests in to protect against future
388 * changes -- rcc.
389 */
390 error = xfs_itruncate_finish(&tp, ip, (xfs_fsize_t)0,
391 XFS_DATA_FORK,
392 ((ip->i_d.di_nlink != 0 ||
393 !(mp->m_flags & XFS_MOUNT_WSYNC))
394 ? 1 : 0));
395 if (error) {
396 xfs_trans_cancel(tp, XFS_TRANS_RELEASE_LOG_RES |
397 XFS_TRANS_ABORT);
398 } else {
399 xfs_ichgtime(ip, XFS_ICHGTIME_MOD | XFS_ICHGTIME_CHG);
400 error = xfs_trans_commit(tp, XFS_TRANS_RELEASE_LOG_RES);
401 }
402 xfs_iunlock(ip, XFS_ILOCK_EXCL | XFS_IOLOCK_EXCL);
403
404 return error;
405}