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[XFS] Add degframentation exclusion support 

SGI-PV: 953061
SGI-Modid: xfs-linux-melb:xfs-kern:25986a

Signed-off-by: Barry Naujok <bnaujok@sgi.com>
Signed-off-by: Nathan Scott <nathans@sgi.com>
This commit is contained in:
Barry Naujok 2006-06-09 14:54:19 +10:00 committed by Nathan Scott
parent fbc1462bcb
commit d3446eac3f
8 changed files with 20 additions and 1 deletions
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1
fs/xfs/linux-2.6/xfs_globals.c
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@ -45,6 +45,7 @@ xfs_param_t xfs_params = {
.xfs_buf_age = { 1*100, 15*100, 7200*100},
.inherit_nosym = { 0, 0, 1 },
.rotorstep = { 1, 1, 255 },
.inherit_nodfrg = { 0, 1, 1 },
};
/*

1
fs/xfs/linux-2.6/xfs_linux.h
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@ -134,6 +134,7 @@ BUFFER_FNS(PrivateStart, unwritten);
#define xfs_buf_age_centisecs xfs_params.xfs_buf_age.val
#define xfs_inherit_nosymlinks xfs_params.inherit_nosym.val
#define xfs_rotorstep xfs_params.rotorstep.val
#define xfs_inherit_nodefrag xfs_params.inherit_nodfrg.val
#ifndef raw_smp_processor_id
#define raw_smp_processor_id() smp_processor_id()

5
fs/xfs/linux-2.6/xfs_sysctl.c
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@ -120,6 +120,11 @@ STATIC ctl_table xfs_table[] = {
&sysctl_intvec, NULL,
&xfs_params.rotorstep.min, &xfs_params.rotorstep.max},
{XFS_INHERIT_NODFRG, "inherit_nodefrag", &xfs_params.inherit_nodfrg.val,
sizeof(int), 0644, NULL, &proc_dointvec_minmax,
&sysctl_intvec, NULL,
&xfs_params.inherit_nodfrg.min, &xfs_params.inherit_nodfrg.max},
/* please keep this the last entry */
#ifdef CONFIG_PROC_FS
{XFS_STATS_CLEAR, "stats_clear", &xfs_params.stats_clear.val,

2
fs/xfs/linux-2.6/xfs_sysctl.h
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@ -46,6 +46,7 @@ typedef struct xfs_param {
xfs_sysctl_val_t xfs_buf_age; /* Metadata buffer age before flush. */
xfs_sysctl_val_t inherit_nosym; /* Inherit the "nosymlinks" flag. */
xfs_sysctl_val_t rotorstep; /* inode32 AG rotoring control knob */
xfs_sysctl_val_t inherit_nodfrg;/* Inherit the "nodefrag" inode flag. */
} xfs_param_t;
/*
@ -84,6 +85,7 @@ enum {
/* XFS_IO_BYPASS = 18 */
XFS_INHERIT_NOSYM = 19,
XFS_ROTORSTEP = 20,
XFS_INHERIT_NODFRG = 21,
};
extern xfs_param_t xfs_params;

4
fs/xfs/xfs_dinode.h
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@ -257,6 +257,7 @@ typedef enum xfs_dinode_fmt
#define XFS_DIFLAG_NOSYMLINKS_BIT 10 /* disallow symlink creation */
#define XFS_DIFLAG_EXTSIZE_BIT 11 /* inode extent size allocator hint */
#define XFS_DIFLAG_EXTSZINHERIT_BIT 12 /* inherit inode extent size */
#define XFS_DIFLAG_NODEFRAG_BIT 13 /* do not reorganize/defragment */
#define XFS_DIFLAG_REALTIME (1 << XFS_DIFLAG_REALTIME_BIT)
#define XFS_DIFLAG_PREALLOC (1 << XFS_DIFLAG_PREALLOC_BIT)
#define XFS_DIFLAG_NEWRTBM (1 << XFS_DIFLAG_NEWRTBM_BIT)
@ -270,12 +271,13 @@ typedef enum xfs_dinode_fmt
#define XFS_DIFLAG_NOSYMLINKS (1 << XFS_DIFLAG_NOSYMLINKS_BIT)
#define XFS_DIFLAG_EXTSIZE (1 << XFS_DIFLAG_EXTSIZE_BIT)
#define XFS_DIFLAG_EXTSZINHERIT (1 << XFS_DIFLAG_EXTSZINHERIT_BIT)
#define XFS_DIFLAG_NODEFRAG (1 << XFS_DIFLAG_NODEFRAG_BIT)
#define XFS_DIFLAG_ANY \
(XFS_DIFLAG_REALTIME | XFS_DIFLAG_PREALLOC | XFS_DIFLAG_NEWRTBM | \
XFS_DIFLAG_IMMUTABLE | XFS_DIFLAG_APPEND | XFS_DIFLAG_SYNC | \
XFS_DIFLAG_NOATIME | XFS_DIFLAG_NODUMP | XFS_DIFLAG_RTINHERIT | \
XFS_DIFLAG_PROJINHERIT | XFS_DIFLAG_NOSYMLINKS | XFS_DIFLAG_EXTSIZE | \
XFS_DIFLAG_EXTSZINHERIT)
XFS_DIFLAG_EXTSZINHERIT | XFS_DIFLAG_NODEFRAG)
#endif /* __XFS_DINODE_H__ */

1
fs/xfs/xfs_fs.h
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@ -67,6 +67,7 @@ struct fsxattr {
#define XFS_XFLAG_NOSYMLINKS 0x00000400 /* disallow symlink creation */
#define XFS_XFLAG_EXTSIZE 0x00000800 /* extent size allocator hint */
#define XFS_XFLAG_EXTSZINHERIT 0x00001000 /* inherit inode extent size */
#define XFS_XFLAG_NODEFRAG 0x00002000 /* do not defragment */
#define XFS_XFLAG_HASATTR 0x80000000 /* no DIFLAG for this */
/*

5
fs/xfs/xfs_inode.c
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@ -812,6 +812,8 @@ _xfs_dic2xflags(
flags |= XFS_XFLAG_EXTSIZE;
if (di_flags & XFS_DIFLAG_EXTSZINHERIT)
flags |= XFS_XFLAG_EXTSZINHERIT;
if (di_flags & XFS_DIFLAG_NODEFRAG)
flags |= XFS_XFLAG_NODEFRAG;
}
return flags;
@ -1221,6 +1223,9 @@ xfs_ialloc(
di_flags |= XFS_DIFLAG_NOSYMLINKS;
if (pip->i_d.di_flags & XFS_DIFLAG_PROJINHERIT)
di_flags |= XFS_DIFLAG_PROJINHERIT;
if ((pip->i_d.di_flags & XFS_DIFLAG_NODEFRAG) &&
xfs_inherit_nodefrag)
di_flags |= XFS_DIFLAG_NODEFRAG;
ip->i_d.di_flags |= di_flags;
}
/* FALLTHROUGH */

2
fs/xfs/xfs_vnodeops.c
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@ -799,6 +799,8 @@ xfs_setattr(
di_flags |= XFS_DIFLAG_NODUMP;
if (vap->va_xflags & XFS_XFLAG_PROJINHERIT)
di_flags |= XFS_DIFLAG_PROJINHERIT;
if (vap->va_xflags & XFS_XFLAG_NODEFRAG)
di_flags |= XFS_DIFLAG_NODEFRAG;
if ((ip->i_d.di_mode & S_IFMT) == S_IFDIR) {
if (vap->va_xflags & XFS_XFLAG_RTINHERIT)
di_flags |= XFS_DIFLAG_RTINHERIT;