diff options
Diffstat (limited to 'fs/xfs/xfs_iomap.c')
| -rw-r--r-- | fs/xfs/xfs_iomap.c | 21 |
1 files changed, 12 insertions, 9 deletions
diff --git a/fs/xfs/xfs_iomap.c b/fs/xfs/xfs_iomap.c index f4f5b43cf..d81bdc080 100644 --- a/fs/xfs/xfs_iomap.c +++ b/fs/xfs/xfs_iomap.c @@ -129,7 +129,6 @@ xfs_iomap_write_direct( xfs_trans_t *tp; xfs_bmap_free_t free_list; uint qblocks, resblks, resrtextents; - int committed; int error; int lockmode; int bmapi_flags = XFS_BMAPI_PREALLOC; @@ -203,15 +202,20 @@ xfs_iomap_write_direct( * this outside the transaction context, but if we commit and then crash * we may not have zeroed the blocks and this will be exposed on * recovery of the allocation. Hence we must zero before commit. + * * Further, if we are mapping unwritten extents here, we need to zero * and convert them to written so that we don't need an unwritten extent * callback for DAX. This also means that we need to be able to dip into - * the reserve block pool if there is no space left but we need to do - * unwritten extent conversion. + * the reserve block pool for bmbt block allocation if there is no space + * left but we need to do unwritten extent conversion. */ + if (IS_DAX(VFS_I(ip))) { bmapi_flags = XFS_BMAPI_CONVERT | XFS_BMAPI_ZERO; - tp->t_flags |= XFS_TRANS_RESERVE; + if (ISUNWRITTEN(imap)) { + tp->t_flags |= XFS_TRANS_RESERVE; + resblks = XFS_DIOSTRAT_SPACE_RES(mp, 0) << 1; + } } error = xfs_trans_reserve(tp, &M_RES(mp)->tr_write, resblks, resrtextents); @@ -247,7 +251,7 @@ xfs_iomap_write_direct( /* * Complete the transaction */ - error = xfs_bmap_finish(&tp, &free_list, &committed); + error = xfs_bmap_finish(&tp, &free_list, NULL); if (error) goto out_bmap_cancel; @@ -693,7 +697,7 @@ xfs_iomap_write_allocate( xfs_bmap_free_t free_list; xfs_filblks_t count_fsb; xfs_trans_t *tp; - int nimaps, committed; + int nimaps; int error = 0; int nres; @@ -794,7 +798,7 @@ xfs_iomap_write_allocate( if (error) goto trans_cancel; - error = xfs_bmap_finish(&tp, &free_list, &committed); + error = xfs_bmap_finish(&tp, &free_list, NULL); if (error) goto trans_cancel; @@ -852,7 +856,6 @@ xfs_iomap_write_unwritten( xfs_bmap_free_t free_list; xfs_fsize_t i_size; uint resblks; - int committed; int error; trace_xfs_unwritten_convert(ip, offset, count); @@ -924,7 +927,7 @@ xfs_iomap_write_unwritten( xfs_trans_log_inode(tp, ip, XFS_ILOG_CORE); } - error = xfs_bmap_finish(&tp, &free_list, &committed); + error = xfs_bmap_finish(&tp, &free_list, NULL); if (error) goto error_on_bmapi_transaction; |