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Diffstat (limited to 'fs/xfs/linux-2.6/xfs_lrw.c')
-rw-r--r--fs/xfs/linux-2.6/xfs_lrw.c62
1 files changed, 3 insertions, 59 deletions
diff --git a/fs/xfs/linux-2.6/xfs_lrw.c b/fs/xfs/linux-2.6/xfs_lrw.c
index 0d32457abef1..eac6f80d786d 100644
--- a/fs/xfs/linux-2.6/xfs_lrw.c
+++ b/fs/xfs/linux-2.6/xfs_lrw.c
@@ -630,18 +630,9 @@ start:
630 * by root. This keeps people from modifying setuid and 630 * by root. This keeps people from modifying setuid and
631 * setgid binaries. 631 * setgid binaries.
632 */ 632 */
633 633 error = -file_remove_suid(file);
634 if (((xip->i_d.di_mode & S_ISUID) || 634 if (unlikely(error))
635 ((xip->i_d.di_mode & (S_ISGID | S_IXGRP)) == 635 goto out_unlock_internal;
636 (S_ISGID | S_IXGRP))) &&
637 !capable(CAP_FSETID)) {
638 error = xfs_write_clear_setuid(xip);
639 if (likely(!error))
640 error = -file_remove_suid(file);
641 if (unlikely(error)) {
642 goto out_unlock_internal;
643 }
644 }
645 636
646 /* We can write back this queue in page reclaim */ 637 /* We can write back this queue in page reclaim */
647 current->backing_dev_info = mapping->backing_dev_info; 638 current->backing_dev_info = mapping->backing_dev_info;
@@ -784,53 +775,6 @@ write_retry:
784} 775}
785 776
786/* 777/*
787 * All xfs metadata buffers except log state machine buffers
788 * get this attached as their b_bdstrat callback function.
789 * This is so that we can catch a buffer
790 * after prematurely unpinning it to forcibly shutdown the filesystem.
791 */
792int
793xfs_bdstrat_cb(struct xfs_buf *bp)
794{
795 if (XFS_FORCED_SHUTDOWN(bp->b_mount)) {
796 trace_xfs_bdstrat_shut(bp, _RET_IP_);
797 /*
798 * Metadata write that didn't get logged but
799 * written delayed anyway. These aren't associated
800 * with a transaction, and can be ignored.
801 */
802 if (XFS_BUF_IODONE_FUNC(bp) == NULL &&
803 (XFS_BUF_ISREAD(bp)) == 0)
804 return (xfs_bioerror_relse(bp));
805 else
806 return (xfs_bioerror(bp));
807 }
808
809 xfs_buf_iorequest(bp);
810 return 0;
811}
812
813/*
814 * Wrapper around bdstrat so that we can stop data from going to disk in case
815 * we are shutting down the filesystem. Typically user data goes thru this
816 * path; one of the exceptions is the superblock.
817 */
818void
819xfsbdstrat(
820 struct xfs_mount *mp,
821 struct xfs_buf *bp)
822{
823 ASSERT(mp);
824 if (!XFS_FORCED_SHUTDOWN(mp)) {
825 xfs_buf_iorequest(bp);
826 return;
827 }
828
829 trace_xfs_bdstrat_shut(bp, _RET_IP_);
830 xfs_bioerror_relse(bp);
831}
832
833/*
834 * If the underlying (data/log/rt) device is readonly, there are some 778 * If the underlying (data/log/rt) device is readonly, there are some
835 * operations that cannot proceed. 779 * operations that cannot proceed.
836 */ 780 */