Merge branch 'xfs-O_TMPFILE-support' into for-next

[karo-tx-linux.git] / fs / xfs / xfs_trans_resv.c

diff --git a/fs/xfs/xfs_trans_resv.c b/fs/xfs/xfs_trans_resv.c
index d2c8e4a6ee2afdc4a4ea9c625a24fa0c718aee23..ae368165244d49458bd4db2cc4688d196f2e2098 100644 (file)
--- a/fs/xfs/xfs_trans_resv.c
+++ b/fs/xfs/xfs_trans_resv.c
@@ -211,6 +211,19 @@ xfs_calc_rename_reservation(
                                      XFS_FSB_TO_B(mp, 1))));
 }
 
+/*
+ * For removing an inode from unlinked list at first, we can modify:
+ *    the agi hash list and counters: sector size
+ *    the on disk inode before ours in the agi hash list: inode cluster size
+ */
+STATIC uint
+xfs_calc_iunlink_remove_reservation(
+       struct xfs_mount        *mp)
+{
+       return xfs_calc_buf_res(1, mp->m_sb.sb_sectsize) +
+              max_t(uint, XFS_FSB_TO_B(mp, 1), mp->m_inode_cluster_size);
+}
+
 /*
  * For creating a link to an inode:
  *    the parent directory inode: inode size
@@ -228,6 +241,7 @@ xfs_calc_link_reservation(
        struct xfs_mount        *mp)
 {
        return XFS_DQUOT_LOGRES(mp) +
+               xfs_calc_iunlink_remove_reservation(mp) +
                MAX((xfs_calc_inode_res(mp, 2) +
                     xfs_calc_buf_res(XFS_DIROP_LOG_COUNT(mp),
                                      XFS_FSB_TO_B(mp, 1))),
@@ -236,6 +250,18 @@ xfs_calc_link_reservation(
                                      XFS_FSB_TO_B(mp, 1))));
 }
 
+/*
+ * For adding an inode to unlinked list we can modify:
+ *    the agi hash list: sector size
+ *    the unlinked inode: inode size
+ */
+STATIC uint
+xfs_calc_iunlink_add_reservation(xfs_mount_t *mp)
+{
+       return xfs_calc_buf_res(1, mp->m_sb.sb_sectsize) +
+               xfs_calc_inode_res(mp, 1);
+}
+
 /*
  * For removing a directory entry we can modify:
  *    the parent directory inode: inode size
@@ -253,10 +279,11 @@ xfs_calc_remove_reservation(
        struct xfs_mount        *mp)
 {
        return XFS_DQUOT_LOGRES(mp) +
-               MAX((xfs_calc_inode_res(mp, 2) +
+               xfs_calc_iunlink_add_reservation(mp) +
+               MAX((xfs_calc_inode_res(mp, 1) +
                     xfs_calc_buf_res(XFS_DIROP_LOG_COUNT(mp),
                                      XFS_FSB_TO_B(mp, 1))),
-                   (xfs_calc_buf_res(5, mp->m_sb.sb_sectsize) +
+                   (xfs_calc_buf_res(4, mp->m_sb.sb_sectsize) +
                     xfs_calc_buf_res(XFS_ALLOCFREE_LOG_COUNT(mp, 2),
                                      XFS_FSB_TO_B(mp, 1))));
 }
@@ -351,6 +378,20 @@ xfs_calc_create_reservation(
 
 }
 
+STATIC uint
+xfs_calc_create_tmpfile_reservation(
+       struct xfs_mount        *mp)
+{
+       uint    res = XFS_DQUOT_LOGRES(mp);
+
+       if (xfs_sb_version_hascrc(&mp->m_sb))
+               res += xfs_calc_icreate_resv_alloc(mp);
+       else
+               res += xfs_calc_create_resv_alloc(mp);
+
+       return res + xfs_calc_iunlink_add_reservation(mp);
+}
+
 /*
  * Making a new directory is the same as creating a new file.
  */
@@ -391,9 +432,9 @@ xfs_calc_ifree_reservation(
 {
        return XFS_DQUOT_LOGRES(mp) +
                xfs_calc_inode_res(mp, 1) +
-               xfs_calc_buf_res(2, mp->m_sb.sb_sectsize) +
+               xfs_calc_buf_res(1, mp->m_sb.sb_sectsize) +
                xfs_calc_buf_res(1, XFS_FSB_TO_B(mp, 1)) +
-               max_t(uint, XFS_FSB_TO_B(mp, 1), mp->m_inode_cluster_size) +
+               xfs_calc_iunlink_remove_reservation(mp) +
                xfs_calc_buf_res(1, 0) +
                xfs_calc_buf_res(2 + mp->m_ialloc_blks +
                                 mp->m_in_maxlevels, 0) +
@@ -736,6 +777,11 @@ xfs_trans_resv_calc(
        resp->tr_create.tr_logcount = XFS_CREATE_LOG_COUNT;
        resp->tr_create.tr_logflags |= XFS_TRANS_PERM_LOG_RES;
 
+       resp->tr_create_tmpfile.tr_logres =
+                       xfs_calc_create_tmpfile_reservation(mp);
+       resp->tr_create_tmpfile.tr_logcount = XFS_CREATE_TMPFILE_LOG_COUNT;
+       resp->tr_create_tmpfile.tr_logflags |= XFS_TRANS_PERM_LOG_RES;
+
        resp->tr_mkdir.tr_logres = xfs_calc_mkdir_reservation(mp);
        resp->tr_mkdir.tr_logcount = XFS_MKDIR_LOG_COUNT;
        resp->tr_mkdir.tr_logflags |= XFS_TRANS_PERM_LOG_RES;