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[XFS] Implement the di_extsize allocator hint for non-realtime files as

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well.  Also provides a mechanism for inheriting this property from the
parent directory for new files.

SGI-PV: 945264
SGI-Modid: xfs-linux-melb:xfs-kern:24367a

Signed-off-by: Nathan Scott <nathans@sgi.com>
This commit is contained in:
Nathan Scott 2006-01-11 15:28:28 +11:00
parent 061f7209bd
commit dd9f438e32
7 changed files with 550 additions and 413 deletions
Download patch file Download diff file Expand all files Collapse all files

162
fs/xfs/xfs_vnodeops.c
View file

@ -540,24 +540,6 @@ xfs_setattr(
goto error_return;
}
/*
* Can't set extent size unless the file is marked, or
* about to be marked as a realtime file.
*
* This check will be removed when fixed size extents
* with buffered data writes is implemented.
*
*/
if ((mask & XFS_AT_EXTSIZE) &&
((ip->i_d.di_extsize << mp->m_sb.sb_blocklog) !=
vap->va_extsize) &&
(!((ip->i_d.di_flags & XFS_DIFLAG_REALTIME) ||
((mask & XFS_AT_XFLAGS) &&
(vap->va_xflags & XFS_XFLAG_REALTIME))))) {
code = XFS_ERROR(EINVAL);
goto error_return;
}
/*
* Can't change realtime flag if any extents are allocated.
*/
@ -820,13 +802,17 @@ xfs_setattr(
di_flags |= XFS_DIFLAG_RTINHERIT;
if (vap->va_xflags & XFS_XFLAG_NOSYMLINKS)
di_flags |= XFS_DIFLAG_NOSYMLINKS;
} else {
if (vap->va_xflags & XFS_XFLAG_EXTSZINHERIT)
di_flags |= XFS_DIFLAG_EXTSZINHERIT;
} else if ((ip->i_d.di_mode & S_IFMT) == S_IFREG) {
if (vap->va_xflags & XFS_XFLAG_REALTIME) {
di_flags |= XFS_DIFLAG_REALTIME;
ip->i_iocore.io_flags |= XFS_IOCORE_RT;
} else {
ip->i_iocore.io_flags &= ~XFS_IOCORE_RT;
}
if (vap->va_xflags & XFS_XFLAG_EXTSIZE)
di_flags |= XFS_DIFLAG_EXTSIZE;
}
ip->i_d.di_flags = di_flags;
}
@ -1568,7 +1554,8 @@ xfs_release(
if ((((ip->i_d.di_mode & S_IFMT) == S_IFREG) &&
((ip->i_d.di_size > 0) || (VN_CACHED(vp) > 0)) &&
(ip->i_df.if_flags & XFS_IFEXTENTS)) &&
(!(ip->i_d.di_flags & (XFS_DIFLAG_PREALLOC|XFS_DIFLAG_APPEND)))) {
(!(ip->i_d.di_flags &
(XFS_DIFLAG_PREALLOC | XFS_DIFLAG_APPEND)))) {
if ((error = xfs_inactive_free_eofblocks(mp, ip)))
return (error);
/* Update linux inode block count after free above */
@ -1644,9 +1631,10 @@ xfs_inactive(
if (ip->i_d.di_nlink != 0) {
if ((((ip->i_d.di_mode & S_IFMT) == S_IFREG) &&
((ip->i_d.di_size > 0) || (VN_CACHED(vp) > 0)) &&
(ip->i_df.if_flags & XFS_IFEXTENTS)) &&
(!(ip->i_d.di_flags & (XFS_DIFLAG_PREALLOC|XFS_DIFLAG_APPEND)) ||
(ip->i_delayed_blks != 0))) {
(ip->i_df.if_flags & XFS_IFEXTENTS) &&
(!(ip->i_d.di_flags &
(XFS_DIFLAG_PREALLOC | XFS_DIFLAG_APPEND)) ||
(ip->i_delayed_blks != 0)))) {
if ((error = xfs_inactive_free_eofblocks(mp, ip)))
return (VN_INACTIVE_CACHE);
/* Update linux inode block count after free above */
@ -3998,42 +3986,36 @@ xfs_alloc_file_space(
int alloc_type,
int attr_flags)
{
xfs_mount_t *mp = ip->i_mount;
xfs_off_t count;
xfs_filblks_t allocated_fsb;
xfs_filblks_t allocatesize_fsb;
int committed;
xfs_off_t count;
xfs_filblks_t datablocks;
int error;
xfs_fsblock_t firstfsb;
xfs_bmap_free_t free_list;
xfs_bmbt_irec_t *imapp;
xfs_bmbt_irec_t imaps[1];
xfs_mount_t *mp;
int numrtextents;
int reccount;
uint resblks;
int rt;
int rtextsize;
xfs_extlen_t extsz, temp;
xfs_fileoff_t startoffset_fsb;
xfs_fsblock_t firstfsb;
int nimaps;
int bmapi_flag;
int quota_flag;
int rt;
xfs_trans_t *tp;
int xfs_bmapi_flags;
xfs_bmbt_irec_t imaps[1], *imapp;
xfs_bmap_free_t free_list;
uint qblocks, resblks, resrtextents;
int committed;
int error;
vn_trace_entry(XFS_ITOV(ip), __FUNCTION__, (inst_t *)__return_address);
mp = ip->i_mount;
if (XFS_FORCED_SHUTDOWN(mp))
return XFS_ERROR(EIO);
/*
* determine if this is a realtime file
*/
if ((rt = XFS_IS_REALTIME_INODE(ip)) != 0) {
if (ip->i_d.di_extsize)
rtextsize = ip->i_d.di_extsize;
else
rtextsize = mp->m_sb.sb_rextsize;
} else
rtextsize = 0;
rt = XFS_IS_REALTIME_INODE(ip);
if (unlikely(rt)) {
if (!(extsz = ip->i_d.di_extsize))
extsz = mp->m_sb.sb_rextsize;
} else {
extsz = ip->i_d.di_extsize;
}
if ((error = XFS_QM_DQATTACH(mp, ip, 0)))
return error;
@ -4044,8 +4026,8 @@ xfs_alloc_file_space(
count = len;
error = 0;
imapp = &imaps[0];
reccount = 1;
xfs_bmapi_flags = XFS_BMAPI_WRITE | (alloc_type ? XFS_BMAPI_PREALLOC : 0);
nimaps = 1;
bmapi_flag = XFS_BMAPI_WRITE | (alloc_type ? XFS_BMAPI_PREALLOC : 0);
startoffset_fsb = XFS_B_TO_FSBT(mp, offset);
allocatesize_fsb = XFS_B_TO_FSB(mp, count);
@ -4066,43 +4048,51 @@ xfs_alloc_file_space(
}
/*
* allocate file space until done or until there is an error
* Allocate file space until done or until there is an error
*/
retry:
while (allocatesize_fsb && !error) {
/*
* determine if reserving space on
* the data or realtime partition.
*/
if (rt) {
xfs_fileoff_t s, e;
xfs_fileoff_t s, e;
/*
* Determine space reservations for data/realtime,
*/
if (unlikely(extsz)) {
s = startoffset_fsb;
do_div(s, rtextsize);
s *= rtextsize;
e = roundup_64(startoffset_fsb + allocatesize_fsb,
rtextsize);
numrtextents = (int)(e - s) / mp->m_sb.sb_rextsize;
datablocks = 0;
do_div(s, extsz);
s *= extsz;
e = startoffset_fsb + allocatesize_fsb;
if ((temp = do_mod(startoffset_fsb, extsz)))
e += temp;
if ((temp = do_mod(e, extsz)))
e += extsz - temp;
} else {
datablocks = allocatesize_fsb;
numrtextents = 0;
s = 0;
e = allocatesize_fsb;
}
if (unlikely(rt)) {
resrtextents = qblocks = (uint)(e - s);
resrtextents /= mp->m_sb.sb_rextsize;
resblks = XFS_DIOSTRAT_SPACE_RES(mp, 0);
quota_flag = XFS_QMOPT_RES_RTBLKS;
} else {
resrtextents = 0;
resblks = qblocks = \
XFS_DIOSTRAT_SPACE_RES(mp, (uint)(e - s));
quota_flag = XFS_QMOPT_RES_REGBLKS;
}
/*
* allocate and setup the transaction
* Allocate and setup the transaction.
*/
tp = xfs_trans_alloc(mp, XFS_TRANS_DIOSTRAT);
resblks = XFS_DIOSTRAT_SPACE_RES(mp, datablocks);
error = xfs_trans_reserve(tp,
resblks,
XFS_WRITE_LOG_RES(mp),
numrtextents,
error = xfs_trans_reserve(tp, resblks,
XFS_WRITE_LOG_RES(mp), resrtextents,
XFS_TRANS_PERM_LOG_RES,
XFS_WRITE_LOG_COUNT);
/*
* check for running out of space
* Check for running out of space
*/
if (error) {
/*
@ -4113,8 +4103,8 @@ retry:
break;
}
xfs_ilock(ip, XFS_ILOCK_EXCL);
error = XFS_TRANS_RESERVE_QUOTA(mp, tp,
ip->i_udquot, ip->i_gdquot, resblks, 0, 0);
error = XFS_TRANS_RESERVE_QUOTA_NBLKS(mp, tp, ip,
qblocks, 0, quota_flag);
if (error)
goto error1;
@ -4122,19 +4112,19 @@ retry:
xfs_trans_ihold(tp, ip);
/*
* issue the bmapi() call to allocate the blocks
* Issue the xfs_bmapi() call to allocate the blocks
*/
XFS_BMAP_INIT(&free_list, &firstfsb);
error = xfs_bmapi(tp, ip, startoffset_fsb,
allocatesize_fsb, xfs_bmapi_flags,
&firstfsb, 0, imapp, &reccount,
allocatesize_fsb, bmapi_flag,
&firstfsb, 0, imapp, &nimaps,
&free_list);
if (error) {
goto error0;
}
/*
* complete the transaction
* Complete the transaction
*/
error = xfs_bmap_finish(&tp, &free_list, firstfsb, &committed);
if (error) {
@ -4149,7 +4139,7 @@ retry:
allocated_fsb = imapp->br_blockcount;
if (reccount == 0) {
if (nimaps == 0) {
error = XFS_ERROR(ENOSPC);
break;
}
@ -4172,9 +4162,11 @@ dmapi_enospc_check:
return error;
error0:
error0: /* Cancel bmap, unlock inode, unreserve quota blocks, cancel trans */
xfs_bmap_cancel(&free_list);
error1:
XFS_TRANS_UNRESERVE_QUOTA_NBLKS(mp, tp, ip, qblocks, 0, quota_flag);
error1: /* Just cancel transaction */
xfs_trans_cancel(tp, XFS_TRANS_RELEASE_LOG_RES | XFS_TRANS_ABORT);
xfs_iunlock(ip, XFS_ILOCK_EXCL);
goto dmapi_enospc_check;
@ -4419,8 +4411,8 @@ xfs_free_file_space(
}
xfs_ilock(ip, XFS_ILOCK_EXCL);
error = XFS_TRANS_RESERVE_QUOTA(mp, tp,
ip->i_udquot, ip->i_gdquot, resblks, 0, rt ?
XFS_QMOPT_RES_RTBLKS : XFS_QMOPT_RES_REGBLKS);
ip->i_udquot, ip->i_gdquot, resblks, 0,
XFS_QMOPT_RES_REGBLKS);
if (error)
goto error1;