Merge branch 'for-linus' of git://oss.sgi.com/xfs/xfs

* 'for-linus' of git://oss.sgi.com/xfs/xfs: (39 commits)
  xfs: includecheck fix for fs/xfs/xfs_iops.c
  xfs: switch to seq_file
  xfs: Record new maintainer information
  xfs: use correct log reservation when handling ENOSPC in xfs_create
  xfs: xfs_showargs() reports group *and* project quotas enabled
  xfs: un-static xfs_inobt_lookup
  xfs: actually enable the swapext compat handler
  xfs: simplify xfs_trans_iget
  xfs: merge fsync and O_SYNC handling
  xfs: speed up free inode search
  xfs: rationalize xfs_inobt_lookup*
  xfs: untangle xfs_dialloc
  xfs: factor out debug checks from xfs_dialloc and xfs_difree
  xfs: improve xfs_inobt_update prototype
  xfs: improve xfs_inobt_get_rec prototype
  xfs: factor out inode initialisation
  fs/xfs: Correct redundant test
  xfs: remove XFS_INO64_OFFSET
  un-static xfs_read_agf
  xfs: add more statics & drop some unused functions
  ...

MAINTAINERS

@@ -5707,7 +5707,7 @@ F:	include/xen/
 
 XFS FILESYSTEM
 P:	Silicon Graphics Inc
-M:	Felix Blyakher <felixb@sgi.com>
+M:	Alex Elder <aelder@sgi.com>
 M:	[email protected]
 L:	[email protected]
 W:	http://oss.sgi.com/projects/xfs

fs/xfs/linux-2.6/xfs_aops.c

@@ -216,7 +216,6 @@ xfs_setfilesize(
 	if (ip->i_d.di_size < isize) {
 		ip->i_d.di_size = isize;
 		ip->i_update_core = 1;
-		ip->i_update_size = 1;
 		xfs_mark_inode_dirty_sync(ip);
 	}
 

fs/xfs/linux-2.6/xfs_file.c

@@ -172,12 +172,21 @@ xfs_file_release(
  */
 STATIC int
 xfs_file_fsync(
-	struct file	*filp,
-	struct dentry	*dentry,
-	int		datasync)
+	struct file		*file,
+	struct dentry		*dentry,
+	int			datasync)
 {
-	xfs_iflags_clear(XFS_I(dentry->d_inode), XFS_ITRUNCATED);
-	return -xfs_fsync(XFS_I(dentry->d_inode));
+	struct inode		*inode = dentry->d_inode;
+	struct xfs_inode	*ip = XFS_I(inode);
+	int			error;
+
+	/* capture size updates in I/O completion before writing the inode. */
+	error = filemap_fdatawait(inode->i_mapping);
+	if (error)
+		return error;
+
+	xfs_iflags_clear(ip, XFS_ITRUNCATED);
+	return -xfs_fsync(ip);
 }
 
 STATIC int

fs/xfs/linux-2.6/xfs_iops.c

@@ -43,7 +43,6 @@
 #include "xfs_error.h"
 #include "xfs_itable.h"
 #include "xfs_rw.h"
-#include "xfs_acl.h"
 #include "xfs_attr.h"
 #include "xfs_buf_item.h"
 #include "xfs_utils.h"

fs/xfs/linux-2.6/xfs_lrw.c

@@ -812,19 +812,21 @@ xfs_write(
 
 	/* Handle various SYNC-type writes */
 	if ((file->f_flags & O_SYNC) || IS_SYNC(inode)) {
+		loff_t end = pos + ret - 1;
 		int error2;
 
 		xfs_iunlock(xip, iolock);
 		if (need_i_mutex)
 			mutex_unlock(&inode->i_mutex);
-		error2 = filemap_write_and_wait_range(mapping, pos,
-						      pos + ret - 1);
+
+		error2 = filemap_write_and_wait_range(mapping, pos, end);
 		if (!error)
 			error = error2;
 		if (need_i_mutex)
 			mutex_lock(&inode->i_mutex);
 		xfs_ilock(xip, iolock);
-		error2 = xfs_write_sync_logforce(mp, xip);
+
+		error2 = xfs_fsync(xip);
 		if (!error)
 			error = error2;
 	}

fs/xfs/linux-2.6/xfs_stats.c

@@ -20,16 +20,9 @@
 
 DEFINE_PER_CPU(struct xfsstats, xfsstats);
 
-STATIC int
-xfs_read_xfsstats(
-	char		*buffer,
-	char		**start,
-	off_t		offset,
-	int		count,
-	int		*eof,
-	void		*data)
+static int xfs_stat_proc_show(struct seq_file *m, void *v)
 {
-	int		c, i, j, len, val;
+	int		c, i, j, val;
 	__uint64_t	xs_xstrat_bytes = 0;
 	__uint64_t	xs_write_bytes = 0;
 	__uint64_t	xs_read_bytes = 0;
@@ -60,18 +53,18 @@ xfs_read_xfsstats(
 	};
 
 	/* Loop over all stats groups */
-	for (i=j=len = 0; i < ARRAY_SIZE(xstats); i++) {
-		len += sprintf(buffer + len, "%s", xstats[i].desc);
+	for (i=j = 0; i < ARRAY_SIZE(xstats); i++) {
+		seq_printf(m, "%s", xstats[i].desc);
 		/* inner loop does each group */
 		while (j < xstats[i].endpoint) {
 			val = 0;
 			/* sum over all cpus */
 			for_each_possible_cpu(c)
 				val += *(((__u32*)&per_cpu(xfsstats, c) + j));
-			len += sprintf(buffer + len, " %u", val);
+			seq_printf(m, " %u", val);
 			j++;
 		}
-		buffer[len++] = '\n';
+		seq_putc(m, '\n');
 	}
 	/* extra precision counters */
 	for_each_possible_cpu(i) {
@@ -80,36 +73,38 @@ xfs_read_xfsstats(
 		xs_read_bytes += per_cpu(xfsstats, i).xs_read_bytes;
 	}
 
-	len += sprintf(buffer + len, "xpc %Lu %Lu %Lu\n",
+	seq_printf(m, "xpc %Lu %Lu %Lu\n",
 			xs_xstrat_bytes, xs_write_bytes, xs_read_bytes);
-	len += sprintf(buffer + len, "debug %u\n",
+	seq_printf(m, "debug %u\n",
 #if defined(DEBUG)
 		1);
 #else
 		0);
 #endif
+	return 0;
+}
 
-	if (offset >= len) {
-		*start = buffer;
-		*eof = 1;
-		return 0;
-	}
-	*start = buffer + offset;
-	if ((len -= offset) > count)
-		return count;
-	*eof = 1;
-
-	return len;
+static int xfs_stat_proc_open(struct inode *inode, struct file *file)
+{
+	return single_open(file, xfs_stat_proc_show, NULL);
 }
 
+static const struct file_operations xfs_stat_proc_fops = {
+	.owner		= THIS_MODULE,
+	.open		= xfs_stat_proc_open,
+	.read		= seq_read,
+	.llseek		= seq_lseek,
+	.release	= single_release,
+};
+
 int
 xfs_init_procfs(void)
 {
 	if (!proc_mkdir("fs/xfs", NULL))
 		goto out;
 
-	if (!create_proc_read_entry("fs/xfs/stat", 0, NULL,
-			xfs_read_xfsstats, NULL))
+	if (!proc_create("fs/xfs/stat", 0, NULL,
+			 &xfs_stat_proc_fops))
 		goto out_remove_entry;
 	return 0;
 

fs/xfs/linux-2.6/xfs_super.c

@@ -579,15 +579,19 @@ xfs_showargs(
 	else if (mp->m_qflags & XFS_UQUOTA_ACCT)
 		seq_puts(m, "," MNTOPT_UQUOTANOENF);
 
-	if (mp->m_qflags & (XFS_PQUOTA_ACCT|XFS_OQUOTA_ENFD))
-		seq_puts(m, "," MNTOPT_PRJQUOTA);
-	else if (mp->m_qflags & XFS_PQUOTA_ACCT)
-		seq_puts(m, "," MNTOPT_PQUOTANOENF);
-
-	if (mp->m_qflags & (XFS_GQUOTA_ACCT|XFS_OQUOTA_ENFD))
-		seq_puts(m, "," MNTOPT_GRPQUOTA);
-	else if (mp->m_qflags & XFS_GQUOTA_ACCT)
-		seq_puts(m, "," MNTOPT_GQUOTANOENF);
+	/* Either project or group quotas can be active, not both */
+
+	if (mp->m_qflags & XFS_PQUOTA_ACCT) {
+		if (mp->m_qflags & XFS_OQUOTA_ENFD)
+			seq_puts(m, "," MNTOPT_PRJQUOTA);
+		else
+			seq_puts(m, "," MNTOPT_PQUOTANOENF);
+	} else if (mp->m_qflags & XFS_GQUOTA_ACCT) {
+		if (mp->m_qflags & XFS_OQUOTA_ENFD)
+			seq_puts(m, "," MNTOPT_GRPQUOTA);
+		else
+			seq_puts(m, "," MNTOPT_GQUOTANOENF);
+	}
 
 	if (!(mp->m_qflags & XFS_ALL_QUOTA_ACCT))
 		seq_puts(m, "," MNTOPT_NOQUOTA);
@@ -687,7 +691,7 @@ xfs_barrier_test(
 	return error;
 }
 
-void
+STATIC void
 xfs_mountfs_check_barriers(xfs_mount_t *mp)
 {
 	int error;

fs/xfs/linux-2.6/xfs_sync.c

@@ -749,21 +749,6 @@ __xfs_inode_clear_reclaim_tag(
 			XFS_INO_TO_AGINO(mp, ip->i_ino), XFS_ICI_RECLAIM_TAG);
 }
 
-void
-xfs_inode_clear_reclaim_tag(
-	xfs_inode_t	*ip)
-{
-	xfs_mount_t	*mp = ip->i_mount;
-	xfs_perag_t	*pag = xfs_get_perag(mp, ip->i_ino);
-
-	read_lock(&pag->pag_ici_lock);
-	spin_lock(&ip->i_flags_lock);
-	__xfs_inode_clear_reclaim_tag(mp, pag, ip);
-	spin_unlock(&ip->i_flags_lock);
-	read_unlock(&pag->pag_ici_lock);
-	xfs_put_perag(mp, pag);
-}
-
 STATIC int
 xfs_reclaim_inode_now(
 	struct xfs_inode	*ip,

fs/xfs/linux-2.6/xfs_sync.h

@@ -49,7 +49,6 @@ int xfs_reclaim_inodes(struct xfs_mount *mp, int mode);
 
 void xfs_inode_set_reclaim_tag(struct xfs_inode *ip);
 void __xfs_inode_set_reclaim_tag(struct xfs_perag *pag, struct xfs_inode *ip);
-void xfs_inode_clear_reclaim_tag(struct xfs_inode *ip);
 void __xfs_inode_clear_reclaim_tag(struct xfs_mount *mp, struct xfs_perag *pag,
 				struct xfs_inode *ip);
 

fs/xfs/quota/xfs_qm_stats.c

@@ -48,50 +48,34 @@
 
 struct xqmstats xqmstats;
 
-STATIC int
-xfs_qm_read_xfsquota(
-	char		*buffer,
-	char		**start,
-	off_t		offset,
-	int		count,
-	int		*eof,
-	void		*data)
+static int xqm_proc_show(struct seq_file *m, void *v)
 {
-	int		len;
-
 	/* maximum; incore; ratio free to inuse; freelist */
-	len = sprintf(buffer, "%d\t%d\t%d\t%u\n",
+	seq_printf(m, "%d\t%d\t%d\t%u\n",
 			ndquot,
 			xfs_Gqm? atomic_read(&xfs_Gqm->qm_totaldquots) : 0,
 			xfs_Gqm? xfs_Gqm->qm_dqfree_ratio : 0,
 			xfs_Gqm? xfs_Gqm->qm_dqfreelist.qh_nelems : 0);
-
-	if (offset >= len) {
-		*start = buffer;
-		*eof = 1;
-		return 0;
-	}
-	*start = buffer + offset;
-	if ((len -= offset) > count)
-		return count;
-	*eof = 1;
-
-	return len;
+	return 0;
 }
 
-STATIC int
-xfs_qm_read_stats(
-	char		*buffer,
-	char		**start,
-	off_t		offset,
-	int		count,
-	int		*eof,
-	void		*data)
+static int xqm_proc_open(struct inode *inode, struct file *file)
 {
-	int		len;
+	return single_open(file, xqm_proc_show, NULL);
+}
+
+static const struct file_operations xqm_proc_fops = {
+	.owner		= THIS_MODULE,
+	.open		= xqm_proc_open,
+	.read		= seq_read,
+	.llseek		= seq_lseek,
+	.release	= single_release,
+};
 
+static int xqmstat_proc_show(struct seq_file *m, void *v)
+{
 	/* quota performance statistics */
-	len = sprintf(buffer, "qm %u %u %u %u %u %u %u %u\n",
+	seq_printf(m, "qm %u %u %u %u %u %u %u %u\n",
 			xqmstats.xs_qm_dqreclaims,
 			xqmstats.xs_qm_dqreclaim_misses,
 			xqmstats.xs_qm_dquot_dups,
@@ -100,25 +84,27 @@ xfs_qm_read_stats(
 			xqmstats.xs_qm_dqwants,
 			xqmstats.xs_qm_dqshake_reclaims,
 			xqmstats.xs_qm_dqinact_reclaims);
+	return 0;
+}
 
-	if (offset >= len) {
-		*start = buffer;
-		*eof = 1;
-		return 0;
-	}
-	*start = buffer + offset;
-	if ((len -= offset) > count)
-		return count;
-	*eof = 1;
-
-	return len;
+static int xqmstat_proc_open(struct inode *inode, struct file *file)
+{
+	return single_open(file, xqmstat_proc_show, NULL);
 }
 
+static const struct file_operations xqmstat_proc_fops = {
+	.owner		= THIS_MODULE,
+	.open		= xqmstat_proc_open,
+	.read		= seq_read,
+	.llseek		= seq_lseek,
+	.release	= single_release,
+};
+
 void
 xfs_qm_init_procfs(void)
 {
-	create_proc_read_entry("fs/xfs/xqmstat", 0, NULL, xfs_qm_read_stats, NULL);
-	create_proc_read_entry("fs/xfs/xqm", 0, NULL, xfs_qm_read_xfsquota, NULL);
+	proc_create("fs/xfs/xqmstat", 0, NULL, &xqmstat_proc_fops);
+	proc_create("fs/xfs/xqm", 0, NULL, &xqm_proc_fops);
 }
 
 void

fs/xfs/xfs_ag.h

@@ -198,6 +198,15 @@ typedef struct xfs_perag
 	xfs_agino_t	pagi_count;	/* number of allocated inodes */
 	int		pagb_count;	/* pagb slots in use */
 	xfs_perag_busy_t *pagb_list;	/* unstable blocks */
+
+	/*
+	 * Inode allocation search lookup optimisation.
+	 * If the pagino matches, the search for new inodes
+	 * doesn't need to search the near ones again straight away
+	 */
+	xfs_agino_t	pagl_pagino;
+	xfs_agino_t	pagl_leftrec;
+	xfs_agino_t	pagl_rightrec;
 #ifdef __KERNEL__
 	spinlock_t	pagb_lock;	/* lock for pagb_list */
 

fs/xfs/xfs_bmap.c

@@ -3713,7 +3713,7 @@ xfs_bmap_local_to_extents(
  * entry (null if none).  Else, *lastxp will be set to the index
  * of the found entry; *gotp will contain the entry.
  */
-xfs_bmbt_rec_host_t *			/* pointer to found extent entry */
+STATIC xfs_bmbt_rec_host_t *		/* pointer to found extent entry */
 xfs_bmap_search_multi_extents(
 	xfs_ifork_t	*ifp,		/* inode fork pointer */
 	xfs_fileoff_t	bno,		/* block number searched for */

fs/xfs/xfs_bmap.h

@@ -392,17 +392,6 @@ xfs_bmap_count_blocks(
 	int			whichfork,
 	int			*count);
 
-/*
- * Search the extent records for the entry containing block bno.
- * If bno lies in a hole, point to the next entry.  If bno lies
- * past eof, *eofp will be set, and *prevp will contain the last
- * entry (null if none).  Else, *lastxp will be set to the index
- * of the found entry; *gotp will contain the entry.
- */
-xfs_bmbt_rec_host_t *
-xfs_bmap_search_multi_extents(struct xfs_ifork *, xfs_fileoff_t, int *,
-			xfs_extnum_t *, xfs_bmbt_irec_t *, xfs_bmbt_irec_t *);
-
 #endif	/* __KERNEL__ */
 
 #endif	/* __XFS_BMAP_H__ */