Merge tag 'xfs-for-linus-4.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/dgc/linux-xfs

Pul xfs updates from Dave Chinner:
 "There's a couple of small API changes to the core DAX code which
  required small changes to the ext2 and ext4 code bases, but otherwise
  everything is within the XFS codebase.

  This update contains:

   - A new sparse on-disk inode record format to allow small extents to
     be used for inode allocation when free space is fragmented.

   - DAX support.  This includes minor changes to the DAX core code to
     fix problems with lock ordering and bufferhead mapping abuse.

   - transaction commit interface cleanup

   - removal of various unnecessary XFS specific type definitions

   - cleanup and optimisation of freelist preparation before allocation

   - various minor cleanups

   - bug fixes for
	- transaction reservation leaks
	- incorrect inode logging in unwritten extent conversion
	- mmap lock vs freeze ordering
	- remote symlink mishandling
	- attribute fork removal issues"

* tag 'xfs-for-linus-4.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/dgc/linux-xfs: (49 commits)
  xfs: don't truncate attribute extents if no extents exist
  xfs: clean up XFS_MIN_FREELIST macros
  xfs: sanitise error handling in xfs_alloc_fix_freelist
  xfs: factor out free space extent length check
  xfs: xfs_alloc_fix_freelist() can use incore perag structures
  xfs: remove xfs_caddr_t
  xfs: use void pointers in log validation helpers
  xfs: return a void pointer from xfs_buf_offset
  xfs: remove inst_t
  xfs: remove __psint_t and __psunsigned_t
  xfs: fix remote symlinks on V5/CRC filesystems
  xfs: fix xfs_log_done interface
  xfs: saner xfs_trans_commit interface
  xfs: remove the flags argument to xfs_trans_cancel
  xfs: pass a boolean flag to xfs_trans_free_items
  xfs: switch remaining xfs_trans_dup users to xfs_trans_roll
  xfs: check min blks for random debug mode sparse allocations
  xfs: fix sparse inodes 32-bit compile failure
  xfs: add initial DAX support
  xfs: add DAX IO path support
  ...

1 files changed, 23 insertions, 28 deletions

diff --git a/fs/xfs/xfs_log.c b/fs/xfs/xfs_log.c
index bcc7cfabb787..08d4fe46f0fa 100644
--- a/fs/xfs/xfs_log.c
+++ b/fs/xfs/xfs_log.c
@@ -109,7 +109,7 @@ xlog_ungrant_log_space(
 STATIC void
 xlog_verify_dest_ptr(
 	struct xlog		*log,
-	char			*ptr);
+	void			*ptr);
 STATIC void
 xlog_verify_grant_tail(
 	struct xlog *log);
@@ -513,7 +513,7 @@ xfs_log_done(
 	struct xfs_mount	*mp,
 	struct xlog_ticket	*ticket,
 	struct xlog_in_core	**iclog,
-	uint			flags)
+	bool			regrant)
 {
 	struct xlog		*log = mp->m_log;
 	xfs_lsn_t		lsn = 0;
@@ -526,14 +526,11 @@ xfs_log_done(
 	    (((ticket->t_flags & XLOG_TIC_INITED) == 0) &&
 	     (xlog_commit_record(log, ticket, iclog, &lsn)))) {
 		lsn = (xfs_lsn_t) -1;
-		if (ticket->t_flags & XLOG_TIC_PERM_RESERV) {
-			flags |= XFS_LOG_REL_PERM_RESERV;
-		}
+		regrant = false;
 	}
 
 
-	if ((ticket->t_flags & XLOG_TIC_PERM_RESERV) == 0 ||
-	    (flags & XFS_LOG_REL_PERM_RESERV)) {
+	if (!regrant) {
 		trace_xfs_log_done_nonperm(log, ticket);
 
 		/*
@@ -541,7 +538,6 @@ xfs_log_done(
 		 * request has been made to release a permanent reservation.
 		 */
 		xlog_ungrant_log_space(log, ticket);
-		xfs_log_ticket_put(ticket);
 	} else {
 		trace_xfs_log_done_perm(log, ticket);
 
@@ -553,6 +549,7 @@ xfs_log_done(
 		ticket->t_flags |= XLOG_TIC_INITED;
 	}
 
+	xfs_log_ticket_put(ticket);
 	return lsn;
 }
 
@@ -1447,7 +1444,7 @@ xlog_alloc_log(
 		iclog->ic_bp = bp;
 		iclog->ic_data = bp->b_addr;
 #ifdef DEBUG
-		log->l_iclog_bak[i] = (xfs_caddr_t)&(iclog->ic_header);
+		log->l_iclog_bak[i] = &iclog->ic_header;
 #endif
 		head = &iclog->ic_header;
 		memset(head, 0, sizeof(xlog_rec_header_t));
@@ -1602,7 +1599,7 @@ xlog_pack_data(
 	int			i, j, k;
 	int			size = iclog->ic_offset + roundoff;
 	__be32			cycle_lsn;
-	xfs_caddr_t		dp;
+	char			*dp;
 
 	cycle_lsn = CYCLE_LSN_DISK(iclog->ic_header.h_lsn);
 
@@ -3664,7 +3661,7 @@ xlog_ticket_alloc(
 void
 xlog_verify_dest_ptr(
 	struct xlog	*log,
-	char		*ptr)
+	void		*ptr)
 {
 	int i;
 	int good_ptr = 0;
@@ -3767,9 +3764,8 @@ xlog_verify_iclog(
 	xlog_op_header_t	*ophead;
 	xlog_in_core_t		*icptr;
 	xlog_in_core_2_t	*xhdr;
-	xfs_caddr_t		ptr;
-	xfs_caddr_t		base_ptr;
-	__psint_t		field_offset;
+	void			*base_ptr, *ptr, *p;
+	ptrdiff_t		field_offset;
 	__uint8_t		clientid;
 	int			len, i, j, k, op_len;
 	int			idx;
@@ -3788,9 +3784,9 @@ xlog_verify_iclog(
 	if (iclog->ic_header.h_magicno != cpu_to_be32(XLOG_HEADER_MAGIC_NUM))
 		xfs_emerg(log->l_mp, "%s: invalid magic num", __func__);
 
-	ptr = (xfs_caddr_t) &iclog->ic_header;
-	for (ptr += BBSIZE; ptr < ((xfs_caddr_t)&iclog->ic_header) + count;
-	     ptr += BBSIZE) {
+	base_ptr = ptr = &iclog->ic_header;
+	p = &iclog->ic_header;
+	for (ptr += BBSIZE; ptr < base_ptr + count; ptr += BBSIZE) {
 		if (*(__be32 *)ptr == cpu_to_be32(XLOG_HEADER_MAGIC_NUM))
 			xfs_emerg(log->l_mp, "%s: unexpected magic num",
 				__func__);
@@ -3798,20 +3794,19 @@ xlog_verify_iclog(
 
 	/* check fields */
 	len = be32_to_cpu(iclog->ic_header.h_num_logops);
-	ptr = iclog->ic_datap;
-	base_ptr = ptr;
-	ophead = (xlog_op_header_t *)ptr;
+	base_ptr = ptr = iclog->ic_datap;
+	ophead = ptr;
 	xhdr = iclog->ic_data;
 	for (i = 0; i < len; i++) {
-		ophead = (xlog_op_header_t *)ptr;
+		ophead = ptr;
 
 		/* clientid is only 1 byte */
-		field_offset = (__psint_t)
-			       ((xfs_caddr_t)&(ophead->oh_clientid) - base_ptr);
+		p = &ophead->oh_clientid;
+		field_offset = p - base_ptr;
 		if (!syncing || (field_offset & 0x1ff)) {
 			clientid = ophead->oh_clientid;
 		} else {
-			idx = BTOBBT((xfs_caddr_t)&(ophead->oh_clientid) - iclog->ic_datap);
+			idx = BTOBBT((char *)&ophead->oh_clientid - iclog->ic_datap);
 			if (idx >= (XLOG_HEADER_CYCLE_SIZE / BBSIZE)) {
 				j = idx / (XLOG_HEADER_CYCLE_SIZE / BBSIZE);
 				k = idx % (XLOG_HEADER_CYCLE_SIZE / BBSIZE);
@@ -3829,13 +3824,13 @@ xlog_verify_iclog(
 				(unsigned long)field_offset);
 
 		/* check length */
-		field_offset = (__psint_t)
-			       ((xfs_caddr_t)&(ophead->oh_len) - base_ptr);
+		p = &ophead->oh_len;
+		field_offset = p - base_ptr;
 		if (!syncing || (field_offset & 0x1ff)) {
 			op_len = be32_to_cpu(ophead->oh_len);
 		} else {
-			idx = BTOBBT((__psint_t)&ophead->oh_len -
-				    (__psint_t)iclog->ic_datap);
+			idx = BTOBBT((uintptr_t)&ophead->oh_len -
+				    (uintptr_t)iclog->ic_datap);
 			if (idx >= (XLOG_HEADER_CYCLE_SIZE / BBSIZE)) {
 				j = idx / (XLOG_HEADER_CYCLE_SIZE / BBSIZE);
 				k = idx % (XLOG_HEADER_CYCLE_SIZE / BBSIZE);