Merge branch 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm

[firefly-linux-kernel-4.4.55.git] / fs / xfs / xfs_iomap.c

diff --git a/fs/xfs/xfs_iomap.c b/fs/xfs/xfs_iomap.c
index 3f2b9f2a7b949d01e0f01f74b21e9b42fd76ae35..72786e356d56ebba6e1f6455cf9f471fd52745fa 100644 (file)
--- a/fs/xfs/xfs_iomap.c
+++ b/fs/xfs/xfs_iomap.c
@@ -135,14 +135,10 @@ xfs_imap_to_bmap(
        int             flags)
 {
        xfs_mount_t     *mp;
-       xfs_fsize_t     nisize;
        int             pbm;
        xfs_fsblock_t   start_block;
 
        mp = io->io_mount;
-       nisize = XFS_SIZE(mp, io);
-       if (io->io_new_size > nisize)
-               nisize = io->io_new_size;
 
        for (pbm = 0; imaps && pbm < iomaps; imaps--, iomapp++, imap++, pbm++) {
                iomapp->iomap_offset = XFS_FSB_TO_B(mp, imap->br_startoff);
@@ -169,10 +165,6 @@ xfs_imap_to_bmap(
                                iomapp->iomap_flags |= IOMAP_UNWRITTEN;
                }
 
-               if ((iomapp->iomap_offset + iomapp->iomap_bsize) >= nisize) {
-                       iomapp->iomap_flags |= IOMAP_EOF;
-               }
-
                offset += iomapp->iomap_bsize - iomapp->iomap_delta;
        }
        return pbm;     /* Return the number filled */
@@ -451,19 +443,14 @@ xfs_iomap_write_direct(
                return XFS_ERROR(error);
 
        rt = XFS_IS_REALTIME_INODE(ip);
-       if (unlikely(rt)) {
-               if (!(extsz = ip->i_d.di_extsize))
-                       extsz = mp->m_sb.sb_rextsize;
-       } else {
-               extsz = ip->i_d.di_extsize;
-       }
+       extsz = xfs_get_extsz_hint(ip);
 
        isize = ip->i_size;
        if (io->io_new_size > isize)
                isize = io->io_new_size;
 
-       offset_fsb = XFS_B_TO_FSBT(mp, offset);
-       last_fsb = XFS_B_TO_FSB(mp, ((xfs_ufsize_t)(offset + count)));
+       offset_fsb = XFS_B_TO_FSBT(mp, offset);
+       last_fsb = XFS_B_TO_FSB(mp, ((xfs_ufsize_t)(offset + count)));
        if ((offset + count) > isize) {
                error = xfs_iomap_eof_align_last_fsb(mp, io, isize, extsz,
                                                        &last_fsb);
@@ -489,13 +476,13 @@ xfs_iomap_write_direct(
        if (unlikely(rt)) {
                resrtextents = qblocks = resaligned;
                resrtextents /= mp->m_sb.sb_rextsize;
-               resblks = XFS_DIOSTRAT_SPACE_RES(mp, 0);
-               quota_flag = XFS_QMOPT_RES_RTBLKS;
-       } else {
-               resrtextents = 0;
+               resblks = XFS_DIOSTRAT_SPACE_RES(mp, 0);
+               quota_flag = XFS_QMOPT_RES_RTBLKS;
+       } else {
+               resrtextents = 0;
                resblks = qblocks = XFS_DIOSTRAT_SPACE_RES(mp, resaligned);
-               quota_flag = XFS_QMOPT_RES_REGBLKS;
-       }
+               quota_flag = XFS_QMOPT_RES_REGBLKS;
+       }
 
        /*
         * Allocate and setup the transaction
@@ -666,13 +653,7 @@ xfs_iomap_write_delay(
        if (error)
                return XFS_ERROR(error);
 
-       if (XFS_IS_REALTIME_INODE(ip)) {
-               if (!(extsz = ip->i_d.di_extsize))
-                       extsz = mp->m_sb.sb_rextsize;
-       } else {
-               extsz = ip->i_d.di_extsize;
-       }
-
+       extsz = xfs_get_extsz_hint(ip);
        offset_fsb = XFS_B_TO_FSBT(mp, offset);
 
 retry:
@@ -788,18 +769,12 @@ xfs_iomap_write_allocate(
                nimaps = 0;
                while (nimaps == 0) {
                        tp = xfs_trans_alloc(mp, XFS_TRANS_STRAT_WRITE);
+                       tp->t_flags |= XFS_TRANS_RESERVE;
                        nres = XFS_EXTENTADD_SPACE_RES(mp, XFS_DATA_FORK);
                        error = xfs_trans_reserve(tp, nres,
                                        XFS_WRITE_LOG_RES(mp),
                                        0, XFS_TRANS_PERM_LOG_RES,
                                        XFS_WRITE_LOG_COUNT);
-                       if (error == ENOSPC) {
-                               error = xfs_trans_reserve(tp, 0,
-                                               XFS_WRITE_LOG_RES(mp),
-                                               0,
-                                               XFS_TRANS_PERM_LOG_RES,
-                                               XFS_WRITE_LOG_COUNT);
-                       }
                        if (error) {
                                xfs_trans_cancel(tp, 0);
                                return XFS_ERROR(error);
@@ -917,8 +892,8 @@ xfs_iomap_write_unwritten(
                 * from unwritten to real. Do allocations in a loop until
                 * we have covered the range passed in.
                 */
-
                tp = xfs_trans_alloc(mp, XFS_TRANS_STRAT_WRITE);
+               tp->t_flags |= XFS_TRANS_RESERVE;
                error = xfs_trans_reserve(tp, resblks,
                                XFS_WRITE_LOG_RES(mp), 0,
                                XFS_TRANS_PERM_LOG_RES,