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authorChristoph Hellwig <hch@infradead.org>2010-07-20 17:51:31 +1000
committerAlex Elder <aelder@sgi.com>2010-07-26 13:16:52 -0500
commit5d18898b20dfed5f373f8a9a7cbe01446036f8e9 (patch)
treedc96915d62c7140ad4ac33a3724ddf36f9db022f /fs/xfs/xfs_utils.c
parent939d723b721eef71060201738653a73443ff4510 (diff)
xfs: simplify xfs_truncate_file
xfs_truncate_file is only used for truncating quota files. Move it to xfs_qm_syscalls.c so it can be marked static and take advatange of the fact by removing the unused page cache validation and taking the iget into the helper. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Dave Chinner <dchinner@redhat.com> Signed-off-by: Dave Chinner <david@fromorbit.com>
Diffstat (limited to 'fs/xfs/xfs_utils.c')
-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 102ce4898ab..b7d5769d2df 100644
--- a/fs/xfs/xfs_utils.c
+++ b/fs/xfs/xfs_utils.c
@@ -320,86 +320,3 @@ xfs_bumplink(
xfs_trans_log_inode(tp, ip, XFS_ILOG_CORE);
return 0;
}
-
-/*
- * Try to truncate the given file to 0 length. Currently called
- * only out of xfs_remove when it has to truncate a file to free
- * up space for the remove to proceed.
- */
-int
-xfs_truncate_file(
- xfs_mount_t *mp,
- xfs_inode_t *ip)
-{
- xfs_trans_t *tp;
- int error;
-
-#ifdef QUOTADEBUG
- /*
- * This is called to truncate the quotainodes too.
- */
- if (XFS_IS_UQUOTA_ON(mp)) {
- if (ip->i_ino != mp->m_sb.sb_uquotino)
- ASSERT(ip->i_udquot);
- }
- if (XFS_IS_OQUOTA_ON(mp)) {
- if (ip->i_ino != mp->m_sb.sb_gquotino)
- ASSERT(ip->i_gdquot);
- }
-#endif
- /*
- * Make the call to xfs_itruncate_start before starting the
- * transaction, because we cannot make the call while we're
- * in a transaction.
- */
- xfs_ilock(ip, XFS_IOLOCK_EXCL);
- error = xfs_itruncate_start(ip, XFS_ITRUNC_DEFINITE, (xfs_fsize_t)0);
- if (error) {
- xfs_iunlock(ip, XFS_IOLOCK_EXCL);
- return error;
- }
-
- tp = xfs_trans_alloc(mp, XFS_TRANS_TRUNCATE_FILE);
- if ((error = xfs_trans_reserve(tp, 0, XFS_ITRUNCATE_LOG_RES(mp), 0,
- XFS_TRANS_PERM_LOG_RES,
- XFS_ITRUNCATE_LOG_COUNT))) {
- xfs_trans_cancel(tp, 0);
- xfs_iunlock(ip, XFS_IOLOCK_EXCL);
- return error;
- }
-
- /*
- * Follow the normal truncate locking protocol. Since we
- * hold the inode in the transaction, we know that its number
- * of references will stay constant.
- */
- xfs_ilock(ip, XFS_ILOCK_EXCL);
- xfs_trans_ijoin(tp, ip);
-
- /*
- * Signal a sync xaction. The only case where that isn't
- * the case is if we're truncating an already unlinked file
- * on a wsync fs. In that case, we know the blocks can't
- * reappear in the file because the links to file are
- * permanently toast. Currently, we're always going to
- * want a sync transaction because this code is being
- * called from places where nlink is guaranteed to be 1
- * but I'm leaving the tests in to protect against future
- * changes -- rcc.
- */
- error = xfs_itruncate_finish(&tp, ip, (xfs_fsize_t)0,
- XFS_DATA_FORK,
- ((ip->i_d.di_nlink != 0 ||
- !(mp->m_flags & XFS_MOUNT_WSYNC))
- ? 1 : 0));
- if (error) {
- xfs_trans_cancel(tp, XFS_TRANS_RELEASE_LOG_RES |
- XFS_TRANS_ABORT);
- } else {
- xfs_ichgtime(ip, XFS_ICHGTIME_MOD | XFS_ICHGTIME_CHG);
- error = xfs_trans_commit(tp, XFS_TRANS_RELEASE_LOG_RES);
- }
- xfs_iunlock(ip, XFS_ILOCK_EXCL | XFS_IOLOCK_EXCL);
-
- return error;
-}