From: Eric Sandeen <sandeen@sandeen.net>
To: David Chinner <dgc@sgi.com>
Cc: xfs-oss <xfs@oss.sgi.com>
Subject: [PATCH V3] optimize XFS_IS_REALTIME_INODE w/o realtime config
Date: Thu, 25 Oct 2007 19:57:30 -0500 [thread overview]
Message-ID: <47213B7A.10501@sandeen.net> (raw)
In-Reply-To: <46CF1B22.7090007@sandeen.net>
Try again.. :)
-------------
Use XFS_IS_REALTIME_INODE in more places, and #define it to
0 if CONFIG_XFS_RT is off. This should be safe because mount
checks in xfs_rtmount_init:
# define xfs_rtmount_init(m) (((mp)->m_sb.sb_rblocks == 0)? 0 : (ENOSYS))
so if we get mounted w/o CONFIG_XFS_RT, no realtime inodes should
be encountered after that.
Defining XFS_IS_REALTIME_INODE to 0 saves a bit of stack space,
presumeably gcc can optimize around the various "if (0)" type
checks:
xfs_alloc_file_space -8
xfs_bmap_adjacent -16
xfs_bmapi -8
xfs_bmap_rtalloc -16
xfs_bunmapi -28
xfs_free_file_space -64
xfs_imap +8 <-- ? hmm.
xfs_iomap_write_direct -12
xfs_qm_dqusage_adjust -4
xfs_qm_vop_chown_reserve -4
Signed-off-by: Eric Sandeen <sandeen@sandeen.net>
Index: linux-2.6-xfs/fs/xfs/xfs_rtalloc.h
===================================================================
--- linux-2.6-xfs.orig/fs/xfs/xfs_rtalloc.h
+++ linux-2.6-xfs/fs/xfs/xfs_rtalloc.h
@@ -21,8 +21,6 @@
struct xfs_mount;
struct xfs_trans;
-#define XFS_IS_REALTIME_INODE(ip) ((ip)->i_d.di_flags &
XFS_DIFLAG_REALTIME)
-
/* Min and max rt extent sizes, specified in bytes */
#define XFS_MAX_RTEXTSIZE (1024 * 1024 * 1024) /* 1GB */
#define XFS_DFL_RTEXTSIZE (64 * 1024) /* 64KB */
Index: linux-2.6-xfs/fs/xfs/linux-2.6/xfs_ioctl.c
===================================================================
--- linux-2.6-xfs.orig/fs/xfs/linux-2.6/xfs_ioctl.c
+++ linux-2.6-xfs/fs/xfs/linux-2.6/xfs_ioctl.c
@@ -741,7 +741,7 @@ xfs_ioctl(
case XFS_IOC_DIOINFO: {
struct dioattr da;
xfs_buftarg_t *target =
- (ip->i_d.di_flags & XFS_DIFLAG_REALTIME) ?
+ XFS_IS_REALTIME_INODE(ip) ?
mp->m_rtdev_targp : mp->m_ddev_targp;
da.d_mem = da.d_miniosz = 1 << target->bt_sshift;
Index: linux-2.6-xfs/fs/xfs/linux-2.6/xfs_lrw.c
===================================================================
--- linux-2.6-xfs.orig/fs/xfs/linux-2.6/xfs_lrw.c
+++ linux-2.6-xfs/fs/xfs/linux-2.6/xfs_lrw.c
@@ -213,7 +213,7 @@ xfs_read(
if (unlikely(ioflags & IO_ISDIRECT)) {
xfs_buftarg_t *target =
- (ip->i_d.di_flags & XFS_DIFLAG_REALTIME) ?
+ XFS_IS_REALTIME_INODE(ip) ?
mp->m_rtdev_targp : mp->m_ddev_targp;
if ((*offset & target->bt_smask) ||
(size & target->bt_smask)) {
@@ -668,7 +668,7 @@ start:
if (ioflags & IO_ISDIRECT) {
xfs_buftarg_t *target =
- (xip->i_d.di_flags & XFS_DIFLAG_REALTIME) ?
+ XFS_IS_REALTIME_INODE(xip) ?
mp->m_rtdev_targp : mp->m_ddev_targp;
if ((pos & target->bt_smask) || (count & target->bt_smask)) {
Index: linux-2.6-xfs/fs/xfs/xfs_dfrag.c
===================================================================
--- linux-2.6-xfs.orig/fs/xfs/xfs_dfrag.c
+++ linux-2.6-xfs/fs/xfs/xfs_dfrag.c
@@ -185,8 +185,7 @@ xfs_swap_extents(
}
/* Verify both files are either real-time or non-realtime */
- if ((ip->i_d.di_flags & XFS_DIFLAG_REALTIME) !=
- (tip->i_d.di_flags & XFS_DIFLAG_REALTIME)) {
+ if (XFS_IS_REALTIME_INODE(ip) != XFS_IS_REALTIME_INODE(tip)) {
error = XFS_ERROR(EINVAL);
goto error0;
}
Index: linux-2.6-xfs/fs/xfs/xfs_rw.h
===================================================================
--- linux-2.6-xfs.orig/fs/xfs/xfs_rw.h
+++ linux-2.6-xfs/fs/xfs/xfs_rw.h
@@ -32,7 +32,7 @@ struct xfs_mount;
static inline xfs_daddr_t
xfs_fsb_to_db(struct xfs_inode *ip, xfs_fsblock_t fsb)
{
- return (((ip)->i_d.di_flags & XFS_DIFLAG_REALTIME) ? \
+ return (XFS_IS_REALTIME_INODE(ip) ? \
(xfs_daddr_t)XFS_FSB_TO_BB((ip)->i_mount, (fsb)) : \
XFS_FSB_TO_DADDR((ip)->i_mount, (fsb)));
}
@@ -53,7 +53,7 @@ xfs_get_extsz_hint(
{
xfs_extlen_t extsz;
- if (unlikely(ip->i_d.di_flags & XFS_DIFLAG_REALTIME)) {
+ if (unlikely(XFS_IS_REALTIME_INODE(ip))) {
extsz = (ip->i_d.di_flags & XFS_DIFLAG_EXTSIZE)
? ip->i_d.di_extsize
: ip->i_mount->m_sb.sb_rextsize;
Index: linux-2.6-xfs/fs/xfs/xfs_vnodeops.c
===================================================================
--- linux-2.6-xfs.orig/fs/xfs/xfs_vnodeops.c
+++ linux-2.6-xfs/fs/xfs/xfs_vnodeops.c
@@ -136,7 +136,7 @@ xfs_getattr(
default:
vap->va_rdev = 0;
- if (!(ip->i_d.di_flags & XFS_DIFLAG_REALTIME)) {
+ if (!(XFS_IS_REALTIME_INODE(ip))) {
vap->va_blocksize = xfs_preferred_iosize(mp);
} else {
@@ -508,7 +508,7 @@ xfs_setattr(
*/
if ((ip->i_d.di_nextents || ip->i_delayed_blks) &&
(mask & XFS_AT_XFLAGS) &&
- (ip->i_d.di_flags & XFS_DIFLAG_REALTIME) !=
+ (XFS_IS_REALTIME_INODE(ip)) !=
(vap->va_xflags & XFS_XFLAG_REALTIME)) {
code = XFS_ERROR(EINVAL); /* EFBIG? */
goto error_return;
@@ -520,7 +520,7 @@ xfs_setattr(
if ((mask & XFS_AT_EXTSIZE) && vap->va_extsize != 0) {
xfs_extlen_t size;
- if ((ip->i_d.di_flags & XFS_DIFLAG_REALTIME) ||
+ if (XFS_IS_REALTIME_INODE(ip) ||
((mask & XFS_AT_XFLAGS) &&
(vap->va_xflags & XFS_XFLAG_REALTIME))) {
size = mp->m_sb.sb_rextsize <<
@@ -1144,7 +1144,7 @@ xfs_fsync(
* If this inode is on the RT dev we need to flush that
* cache as well.
*/
- if (ip->i_d.di_flags & XFS_DIFLAG_REALTIME)
+ if (XFS_IS_REALTIME_INODE(ip))
xfs_blkdev_issue_flush(ip->i_mount->m_rtdev_targp);
}
@@ -4044,7 +4044,7 @@ xfs_zero_remaining_bytes(
int error = 0;
bp = xfs_buf_get_noaddr(mp->m_sb.sb_blocksize,
- ip->i_d.di_flags & XFS_DIFLAG_REALTIME ?
+ XFS_IS_REALTIME_INODE(ip) ?
mp->m_rtdev_targp : mp->m_ddev_targp);
for (offset = startoff; offset <= endoff; offset = lastoffset + 1) {
@@ -4141,7 +4141,7 @@ xfs_free_file_space(
error = 0;
if (len <= 0) /* if nothing being freed */
return error;
- rt = (ip->i_d.di_flags & XFS_DIFLAG_REALTIME);
+ rt = XFS_IS_REALTIME_INODE(ip);
startoffset_fsb = XFS_B_TO_FSB(mp, offset);
end_dmi_offset = offset + len;
endoffset_fsb = XFS_B_TO_FSBT(mp, end_dmi_offset);
Index: linux-2.6-xfs/fs/xfs/xfs_dinode.h
===================================================================
--- linux-2.6-xfs.orig/fs/xfs/xfs_dinode.h
+++ linux-2.6-xfs/fs/xfs/xfs_dinode.h
@@ -273,6 +273,12 @@ typedef enum xfs_dinode_fmt
#define XFS_DIFLAG_NODEFRAG (1 << XFS_DIFLAG_NODEFRAG_BIT)
#define XFS_DIFLAG_FILESTREAM (1 << XFS_DIFLAG_FILESTREAM_BIT)
+#ifdef CONFIG_XFS_RT
+#define XFS_IS_REALTIME_INODE(ip) ((ip)->i_d.di_flags &
XFS_DIFLAG_REALTIME)
+#else
+#define XFS_IS_REALTIME_INODE(ip) (0)
+#endif
+
#define XFS_DIFLAG_ANY \
(XFS_DIFLAG_REALTIME | XFS_DIFLAG_PREALLOC | XFS_DIFLAG_NEWRTBM | \
XFS_DIFLAG_IMMUTABLE | XFS_DIFLAG_APPEND | XFS_DIFLAG_SYNC | \
Index: linux-2.6-xfs/fs/xfs/dmapi/xfs_dm.c
===================================================================
--- linux-2.6-xfs.orig/fs/xfs/dmapi/xfs_dm.c
+++ linux-2.6-xfs/fs/xfs/dmapi/xfs_dm.c
@@ -1045,7 +1045,7 @@ xfs_dm_direct_ok(
/* Realtime files can ONLY do direct I/O. */
- if (ip->i_d.di_flags & XFS_DIFLAG_REALTIME)
+ if (XFS_IS_REALTIME_INODE(ip))
return(1);
/* If direct I/O is disabled, or if the request is too small, use
Index: linux-2.6-xfs/fs/xfs/xfs_bmap.c
===================================================================
--- linux-2.6-xfs.orig/fs/xfs/xfs_bmap.c
+++ linux-2.6-xfs/fs/xfs/xfs_bmap.c
@@ -2969,7 +2969,7 @@ STATIC int
xfs_bmap_alloc(
xfs_bmalloca_t *ap) /* bmap alloc argument struct */
{
- if ((ap->ip->i_d.di_flags & XFS_DIFLAG_REALTIME) && ap->userdata)
+ if (XFS_IS_REALTIME_INODE(ap->ip) && ap->userdata)
return xfs_bmap_rtalloc(ap);
return xfs_bmap_btalloc(ap);
}
@@ -3096,8 +3096,7 @@ xfs_bmap_del_extent(
/*
* Realtime allocation. Free it and record di_nblocks update.
*/
- if (whichfork == XFS_DATA_FORK &&
- (ip->i_d.di_flags & XFS_DIFLAG_REALTIME)) {
+ if (whichfork == XFS_DATA_FORK && XFS_IS_REALTIME_INODE(ip)) {
xfs_fsblock_t bno;
xfs_filblks_t len;
Index: linux-2.6-xfs/fs/xfs/xfs_bmap_btree.c
===================================================================
--- linux-2.6-xfs.orig/fs/xfs/xfs_bmap_btree.c
+++ linux-2.6-xfs/fs/xfs/xfs_bmap_btree.c
@@ -2062,8 +2062,7 @@ xfs_bmbt_insert(
pcur->bc_private.b.allocated;
pcur->bc_private.b.allocated = 0;
ASSERT((cur->bc_private.b.firstblock != NULLFSBLOCK) ||
- (cur->bc_private.b.ip->i_d.di_flags &
- XFS_DIFLAG_REALTIME));
+ XFS_IS_REALTIME_INODE(cur->bc_private.b.ip));
cur->bc_private.b.firstblock =
pcur->bc_private.b.firstblock;
ASSERT(cur->bc_private.b.flist ==
Index: linux-2.6-xfs/fs/xfs/xfs_inode.c
===================================================================
--- linux-2.6-xfs.orig/fs/xfs/xfs_inode.c
+++ linux-2.6-xfs/fs/xfs/xfs_inode.c
@@ -1296,7 +1296,7 @@ xfs_isize_check(
if ((ip->i_d.di_mode & S_IFMT) != S_IFREG)
return;
- if (ip->i_d.di_flags & (XFS_DIFLAG_REALTIME | XFS_DIFLAG_EXTSIZE))
+ if (XFS_IS_REALTIME_INODE(ip) || (ip->i_d.di_flags & XFS_DIFLAG_EXTSIZE))
return;
nimaps = 2;
Index: linux-2.6-xfs/fs/xfs/linux-2.6/xfs_aops.c
===================================================================
--- linux-2.6-xfs.orig/fs/xfs/linux-2.6/xfs_aops.c
+++ linux-2.6-xfs/fs/xfs/linux-2.6/xfs_aops.c
@@ -113,7 +113,7 @@ xfs_find_bdev_for_inode(
{
struct xfs_mount *mp = ip->i_mount;
- if (ip->i_d.di_flags & XFS_DIFLAG_REALTIME)
+ if (XFS_IS_REALTIME_INODE(ip))
return mp->m_rtdev_targp->bt_bdev;
else
return mp->m_ddev_targp->bt_bdev;
Index: linux-2.6-xfs/fs/xfs/linux-2.6/xfs_iops.c
===================================================================
--- linux-2.6-xfs.orig/fs/xfs/linux-2.6/xfs_iops.c
+++ linux-2.6-xfs/fs/xfs/linux-2.6/xfs_iops.c
@@ -597,7 +597,7 @@ xfs_vn_getattr(
sysv_minor(ip->i_df.if_u2.if_rdev));
break;
default:
- if (ip->i_d.di_flags & XFS_DIFLAG_REALTIME) {
+ if (XFS_IS_REALTIME_INODE(ip)) {
/*
* If the file blocks are being allocated from a
* realtime volume, then return the inode's realtime
Index: linux-2.6-xfs/fs/xfs/xfs_iomap.c
===================================================================
--- linux-2.6-xfs.orig/fs/xfs/xfs_iomap.c
+++ linux-2.6-xfs/fs/xfs/xfs_iomap.c
@@ -141,7 +141,7 @@ xfs_imap_to_bmap(
iomapp->iomap_bsize = XFS_FSB_TO_B(mp, imap->br_blockcount);
iomapp->iomap_flags = flags;
- if (ip->i_d.di_flags & XFS_DIFLAG_REALTIME) {
+ if (XFS_IS_REALTIME_INODE(ip)) {
iomapp->iomap_flags |= IOMAP_REALTIME;
iomapp->iomap_target = mp->m_rtdev_targp;
} else {
@@ -298,7 +298,7 @@ xfs_iomap_eof_align_last_fsb(
xfs_extlen_t align;
int eof, error;
- if (ip->i_d.di_flags & XFS_DIFLAG_REALTIME)
+ if (XFS_IS_REALTIME_INODE(ip))
;
/*
* If mounted with the "-o swalloc" option, roundup the allocation
@@ -524,7 +524,7 @@ xfs_iomap_write_direct(
}
if (unlikely(!imap.br_startblock &&
- !(ip->i_d.di_flags & XFS_DIFLAG_REALTIME))) {
+ !(XFS_IS_REALTIME_INODE(ip)))) {
error = xfs_cmn_err_fsblock_zero(ip, &imap);
goto error_out;
}
@@ -687,7 +687,7 @@ retry:
}
if (unlikely(!imap[0].br_startblock &&
- !(ip->i_d.di_flags & XFS_DIFLAG_REALTIME)))
+ !(XFS_IS_REALTIME_INODE(ip))))
return xfs_cmn_err_fsblock_zero(ip, &imap[0]);
*ret_imap = imap[0];
@@ -809,7 +809,7 @@ xfs_iomap_write_allocate(
*/
for (i = 0; i < nimaps; i++) {
if (unlikely(!imap[i].br_startblock &&
- !(ip->i_d.di_flags & XFS_DIFLAG_REALTIME)))
+ !(XFS_IS_REALTIME_INODE(ip))))
return xfs_cmn_err_fsblock_zero(ip, &imap[i]);
if ((offset_fsb >= imap[i].br_startoff) &&
(offset_fsb < (imap[i].br_startoff +
@@ -907,7 +907,7 @@ xfs_iomap_write_unwritten(
return XFS_ERROR(error);
if (unlikely(!imap.br_startblock &&
- !(ip->i_d.di_flags & XFS_DIFLAG_REALTIME)))
+ !(XFS_IS_REALTIME_INODE(ip))))
return xfs_cmn_err_fsblock_zero(ip, &imap);
if ((numblks_fsb = imap.br_blockcount) == 0) {
prev parent reply other threads:[~2007-10-26 0:57 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-08-18 21:19 [PATCH] optimize XFS_IS_REALTIME_INODE w/o realtime config Eric Sandeen
2007-08-19 19:08 ` Christoph Hellwig
2007-08-19 19:10 ` Eric Sandeen
2007-08-24 14:08 ` David Chinner
2007-08-24 17:53 ` [PATCH V2] " Eric Sandeen
2007-10-26 0:57 ` Eric Sandeen [this message]
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