From: Allison Henderson <allison.henderson@oracle.com>
To: linux-xfs@vger.kernel.org
Subject: [PATCH v2 14/27] xfsprogs: extent transaction reservations for parent attributes
Date: Sat, 9 Jun 2018 22:07:39 -0700 [thread overview]
Message-ID: <1528607272-11122-15-git-send-email-allison.henderson@oracle.com> (raw)
In-Reply-To: <1528607272-11122-1-git-send-email-allison.henderson@oracle.com>
We need to add, remove or modify parent pointer attributes during
create/link/unlink/rename operations atomically with the dirents in the parent
directories being modified. This means they need to be modified in the same
transaction as the parent directories, and so we need to add the required
space for the attribute modifications to the transaction reservations.
[achender: rebased, added xfs_sb_version_hasparent stub]
Signed-off-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Allison Henderson <allison.henderson@oracle.com>
---
libxfs/xfs_format.h | 5 +++
libxfs/xfs_trans_resv.c | 111 ++++++++++++++++++++++++++++++++++++++----------
libxfs/xfs_trans_resv.h | 1 +
3 files changed, 94 insertions(+), 23 deletions(-)
diff --git a/libxfs/xfs_format.h b/libxfs/xfs_format.h
index 4854893..de8b14a 100644
--- a/libxfs/xfs_format.h
+++ b/libxfs/xfs_format.h
@@ -559,6 +559,11 @@ static inline bool xfs_sb_version_hasreflink(struct xfs_sb *sbp)
(sbp->sb_features_ro_compat & XFS_SB_FEAT_RO_COMPAT_REFLINK);
}
+static inline bool xfs_sb_version_hasparent(struct xfs_sb *sbp)
+{
+ return false; /* We'll enable this at the end of the set */
+}
+
/*
* end of superblock version macros
*/
diff --git a/libxfs/xfs_trans_resv.c b/libxfs/xfs_trans_resv.c
index 3cebb90..7b7d98f 100644
--- a/libxfs/xfs_trans_resv.c
+++ b/libxfs/xfs_trans_resv.c
@@ -788,29 +788,30 @@ xfs_calc_sb_reservation(
return xfs_calc_buf_res(1, mp->m_sb.sb_sectsize);
}
+/*
+ * Namespace reservations.
+ *
+ * These get tricky when parent pointers are enabled as we have attribute
+ * modifications occurring from within these transactions. Rather than confuse
+ * each of these reservation calculations with the conditional attribute
+ * reservations, add them here in a clear and concise manner. This assumes that
+ * the attribute reservations have already been calculated.
+ *
+ * Note that we only include the static attribute reservation here; the runtime
+ * reservation will have to be modified by the size of the attributes being
+ * added/removed/modified. See the comments on the attribute reservation
+ * calculations for more details.
+ *
+ * Note for rename: rename will vastly overestimate requirements. This will be
+ * addressed later when modifications are made to ensure parent attribute
+ * modifications can be done atomically with the rename operation.
+ */
void
-xfs_trans_resv_calc(
+xfs_calc_namespace_reservations(
struct xfs_mount *mp,
struct xfs_trans_resv *resp)
{
- /*
- * The following transactions are logged in physical format and
- * require a permanent reservation on space.
- */
- resp->tr_write.tr_logres = xfs_calc_write_reservation(mp);
- if (xfs_sb_version_hasreflink(&mp->m_sb))
- resp->tr_write.tr_logcount = XFS_WRITE_LOG_COUNT_REFLINK;
- else
- resp->tr_write.tr_logcount = XFS_WRITE_LOG_COUNT;
- resp->tr_write.tr_logflags |= XFS_TRANS_PERM_LOG_RES;
-
- resp->tr_itruncate.tr_logres = xfs_calc_itruncate_reservation(mp);
- if (xfs_sb_version_hasreflink(&mp->m_sb))
- resp->tr_itruncate.tr_logcount =
- XFS_ITRUNCATE_LOG_COUNT_REFLINK;
- else
- resp->tr_itruncate.tr_logcount = XFS_ITRUNCATE_LOG_COUNT;
- resp->tr_itruncate.tr_logflags |= XFS_TRANS_PERM_LOG_RES;
+ ASSERT(resp->tr_attrsetm.tr_logres > 0);
resp->tr_rename.tr_logres = xfs_calc_rename_reservation(mp);
resp->tr_rename.tr_logcount = XFS_RENAME_LOG_COUNT;
@@ -832,15 +833,77 @@ 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_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;
+
+ xfs_calc_parent_ptr_reservations(mp);
+}
+
+void xfs_calc_parent_ptr_reservations(struct xfs_mount *mp)
+{
+ struct xfs_trans_resv *resp = M_RES(mp);
+
+ /* Calculate extra space needed for parent pointer attributes */
+ if (!xfs_sb_version_hasparent(&mp->m_sb))
+ return;
+
+ /* rename can add/remove/modify 2 parent attributes */
+ resp->tr_rename.tr_logres += 4 * max(resp->tr_attrsetm.tr_logres,
+ resp->tr_attrrm.tr_logres);
+ resp->tr_rename.tr_logcount += 4 * max(resp->tr_attrsetm.tr_logcount,
+ resp->tr_attrrm.tr_logcount);
+
+ /* create will add 1 parent attribute */
+ resp->tr_create.tr_logres += resp->tr_attrsetm.tr_logres;
+ resp->tr_create.tr_logcount += resp->tr_attrsetm.tr_logcount;
+
+ /* mkdir will add 1 parent attribute */
+ resp->tr_mkdir.tr_logres += resp->tr_attrsetm.tr_logres;
+ resp->tr_mkdir.tr_logcount += resp->tr_attrsetm.tr_logcount;
+
+ /* link will add 1 parent attribute */
+ resp->tr_link.tr_logres += resp->tr_attrsetm.tr_logres;
+ resp->tr_link.tr_logcount += resp->tr_attrsetm.tr_logcount;
+
+ /* symlink will add 1 parent attribute */
+ resp->tr_symlink.tr_logres += resp->tr_attrsetm.tr_logres;
+ resp->tr_symlink.tr_logcount += resp->tr_attrsetm.tr_logcount;
+
+ /* remove will remove 1 parent attribute */
+ resp->tr_remove.tr_logres += resp->tr_attrrm.tr_logres;
+ resp->tr_remove.tr_logcount += resp->tr_attrrm.tr_logcount;
+}
+
+void
+xfs_trans_resv_calc(
+ struct xfs_mount *mp,
+ struct xfs_trans_resv *resp)
+{
+ /*
+ * The following transactions are logged in physical format and
+ * require a permanent reservation on space.
+ */
+ resp->tr_write.tr_logres = xfs_calc_write_reservation(mp);
+ if (xfs_sb_version_hasreflink(&mp->m_sb))
+ resp->tr_write.tr_logcount = XFS_WRITE_LOG_COUNT_REFLINK;
+ else
+ resp->tr_write.tr_logcount = XFS_WRITE_LOG_COUNT;
+ resp->tr_write.tr_logflags |= XFS_TRANS_PERM_LOG_RES;
+
+ resp->tr_itruncate.tr_logres = xfs_calc_itruncate_reservation(mp);
+ if (xfs_sb_version_hasreflink(&mp->m_sb))
+ resp->tr_itruncate.tr_logcount =
+ XFS_ITRUNCATE_LOG_COUNT_REFLINK;
+ else
+ resp->tr_itruncate.tr_logcount = XFS_ITRUNCATE_LOG_COUNT;
+ resp->tr_itruncate.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;
-
resp->tr_ifree.tr_logres = xfs_calc_ifree_reservation(mp);
resp->tr_ifree.tr_logcount = XFS_INACTIVE_LOG_COUNT;
resp->tr_ifree.tr_logflags |= XFS_TRANS_PERM_LOG_RES;
@@ -872,6 +935,8 @@ xfs_trans_resv_calc(
resp->tr_qm_dqalloc.tr_logcount = XFS_WRITE_LOG_COUNT;
resp->tr_qm_dqalloc.tr_logflags |= XFS_TRANS_PERM_LOG_RES;
+ xfs_calc_namespace_reservations(mp, resp);
+
/*
* The following transactions are logged in logical format with
* a default log count.
diff --git a/libxfs/xfs_trans_resv.h b/libxfs/xfs_trans_resv.h
index b7e5357..c7190d6 100644
--- a/libxfs/xfs_trans_resv.h
+++ b/libxfs/xfs_trans_resv.h
@@ -105,5 +105,6 @@ struct xfs_trans_resv {
void xfs_trans_resv_calc(struct xfs_mount *mp, struct xfs_trans_resv *resp);
uint xfs_allocfree_log_count(struct xfs_mount *mp, uint num_ops);
+void xfs_calc_parent_ptr_reservations(struct xfs_mount *mp);
#endif /* __XFS_TRANS_RESV_H__ */
--
2.7.4
next prev parent reply other threads:[~2018-06-10 5:10 UTC|newest]
Thread overview: 51+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-06-10 5:07 [PATCH v2 00/27] xfsprogs: parent pointers v2 Allison Henderson
2018-06-10 5:07 ` [PATCH v2 01/27] xfsprogs: Move xfs_attr.h to libxfs Allison Henderson
2018-06-10 5:07 ` [PATCH v2 02/27] xfsprogs: Add helper function xfs_attr_try_sf_addname Allison Henderson
2018-06-10 5:07 ` [PATCH v2 03/27] xfsprogs: Add trans toggle to attr routines Allison Henderson
2018-06-10 7:02 ` Amir Goldstein
2018-06-10 16:19 ` Allison Henderson
2018-06-10 5:07 ` [PATCH v2 04/27] xfsprogs: Add attibute set and helper functions Allison Henderson
2018-06-10 5:07 ` [PATCH v2 05/27] xfsprogs: Add attibute remove " Allison Henderson
2018-06-10 5:07 ` [PATCH v2 06/27] xfsprogs: Set up infastructure for deferred attribute operations Allison Henderson
2018-06-10 5:07 ` [PATCH v2 07/27] xfsprogs: Add xfs_attr_set_deferred and xfs_attr_remove_deferred Allison Henderson
2018-06-10 5:07 ` [PATCH v2 08/27] xfsprogs: Remove all strlen calls in all xfs_attr_* functions for attr names Allison Henderson
2018-06-10 5:07 ` [PATCH v2 09/27] xfsprogs: get directory offset when adding directory name Allison Henderson
2018-06-10 5:07 ` [PATCH v2 10/27] xfsprogs: get directory offset when removing " Allison Henderson
2018-06-10 5:07 ` [PATCH v2 11/27] xfsprogs: get directory offset when replacing a " Allison Henderson
2018-06-10 5:07 ` [PATCH v2 12/27] xfsprogs: add parent pointer support to attribute code Allison Henderson
2018-06-10 5:07 ` [PATCH v2 13/27] xfsprogs: define parent pointer xattr format Allison Henderson
2018-06-10 5:07 ` Allison Henderson [this message]
2018-06-10 5:07 ` [PATCH v2 15/27] xfsprogs: parent pointer attribute creation Allison Henderson
2018-06-10 5:07 ` [PATCH v2 16/27] xfsprogs: Add the parent pointer support to the superblock version 5 Allison Henderson
2018-06-10 5:07 ` [PATCH v2 17/27] xfsprogs: Add helper function xfs_attr_list_context_init Allison Henderson
2018-06-10 5:07 ` [PATCH v2 18/27] xfsprogs: Add parent pointer ioctl Allison Henderson
2018-06-10 5:07 ` [PATCH v2 19/27] xfsprogs: Add delayed attributes error tag Allison Henderson
2018-06-11 17:28 ` Darrick J. Wong
2018-06-11 19:59 ` Allison Henderson
2018-06-10 5:07 ` [PATCH v2 20/27] xfsprogs: Add parent pointer flag to cmd Allison Henderson
2018-06-11 17:43 ` Darrick J. Wong
2018-06-11 20:00 ` Allison Henderson
2018-06-10 5:07 ` [PATCH v2 21/27] xfsprogs: Remove single byte array from struct parent Allison Henderson
2018-06-10 11:21 ` Amir Goldstein
2018-06-10 15:25 ` Allison Henderson
2018-06-10 5:07 ` [PATCH v2 22/27] xfsprogs: Add log item printing for ATTRI and ATTRD Allison Henderson
2018-06-10 5:07 ` [PATCH v2 23/27] xfsprogs: Do not use namechecks on parent pointers Allison Henderson
2018-06-11 18:00 ` Darrick J. Wong
2018-06-11 20:00 ` Allison Henderson
2018-06-11 20:23 ` Darrick J. Wong
2018-06-11 20:38 ` Allison Henderson
2018-06-10 5:07 ` [PATCH v2 24/27] xfsprogs: Add parent pointers to recreated inodes Allison Henderson
2018-06-10 11:27 ` Amir Goldstein
2018-06-10 17:19 ` Allison Henderson
2018-06-11 17:31 ` Darrick J. Wong
2018-06-11 18:06 ` Darrick J. Wong
2018-06-11 20:00 ` Allison Henderson
2018-06-10 5:07 ` [PATCH v2 25/27] xfsprogs: Add parent pointers during protofile creation Allison Henderson
2018-06-10 11:32 ` Amir Goldstein
2018-06-11 18:15 ` Darrick J. Wong
2018-06-11 19:58 ` Allison Henderson
2018-06-10 5:07 ` [PATCH v2 26/27] xfsprogs: implement the upper half of parent pointers Allison Henderson
2018-06-10 12:06 ` Amir Goldstein
2018-06-10 5:07 ` [PATCH v2 27/27] xfsprogs: Clean up old parent pointer definitions Allison Henderson
2018-06-11 18:20 ` Darrick J. Wong
2018-06-11 20:06 ` Allison Henderson
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