litmus-rt.git - The LITMUS^RT kernel.

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author	Aaro Koskinen <aaro.koskinen@iki.fi>	2010-12-20 16:50:19 -0500
committer	Paul Mundt <lethal@linux-sh.org>	2010-12-21 22:57:14 -0500
commit	667a8b4114641895c90f8c98db1678c0bfa056df (patch)
tree	9363bac4211ae6fc8cf054205a3482ddcb139f79 /lib/locking-selftest-spin-softirq.h
parent	27799d6c40828d5983fb1778ad3089740b946af8 (diff)

sisfb: replace andSISIDXREG with SiS_SetRegAND

Replace andSISIDXREG() with SiS_SetRegAND(). Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi> Cc: Thomas Winischhofer <thomas@winischhofer.net> Signed-off-by: Paul Mundt <lethal@linux-sh.org>

Diffstat (limited to 'lib/locking-selftest-spin-softirq.h')

0 files changed, 0 insertions, 0 deletions

/* * Copyright (c) 2000-2006 Silicon Graphics, Inc. * Copyright (c) 2013 Red Hat, Inc. * All Rights Reserved. * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License as * published by the Free Software Foundation. * * This program is distributed in the hope that it would be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */ #include "xfs.h" #include "xfs_fs.h" #include "xfs_shared.h" #include "xfs_format.h" #include "xfs_log_format.h" #include "xfs_trans_resv.h" #include "xfs_sb.h" #include "xfs_ag.h" #include "xfs_mount.h" #include "xfs_inode.h" #include "xfs_quota.h" #include "xfs_trans.h" #include "xfs_qm.h" #include "xfs_error.h" #include "xfs_cksum.h" #include "xfs_trace.h" int xfs_calc_dquots_per_chunk( struct xfs_mount *mp, unsigned int nbblks) /* basic block units */ { unsigned int ndquots; ASSERT(nbblks > 0); ndquots = BBTOB(nbblks); do_div(ndquots, sizeof(xfs_dqblk_t)); return ndquots; } /* * Do some primitive error checking on ondisk dquot data structures. */ int xfs_dqcheck( struct xfs_mount *mp, xfs_disk_dquot_t *ddq, xfs_dqid_t id, uint type, /* used only when IO_dorepair is true */ uint flags, char *str) { xfs_dqblk_t *d = (xfs_dqblk_t *)ddq; int errs = 0; /* * We can encounter an uninitialized dquot buffer for 2 reasons: * 1. If we crash while deleting the quotainode(s), and those blks got * used for user data. This is because we take the path of regular * file deletion; however, the size field of quotainodes is never * updated, so all the tricks that we play in itruncate_finish * don't quite matter. * * 2. We don't play the quota buffers when there's a quotaoff logitem. * But the allocation will be replayed so we'll end up with an * uninitialized quota block. * * This is all fine; things are still consistent, and we haven't lost * any quota information. Just don't complain about bad dquot blks. */ if (ddq->d_magic != cpu_to_be16(XFS_DQUOT_MAGIC)) { if (flags & XFS_QMOPT_DOWARN) xfs_alert(mp, "%s : XFS dquot ID 0x%x, magic 0x%x != 0x%x", str, id, be16_to_cpu(ddq->d_magic), XFS_DQUOT_MAGIC); errs++; } if (ddq->d_version != XFS_DQUOT_VERSION) { if (flags & XFS_QMOPT_DOWARN) xfs_alert(mp, "%s : XFS dquot ID 0x%x, version 0x%x != 0x%x", str, id, ddq->d_version, XFS_DQUOT_VERSION); errs++; } if (ddq->d_flags != XFS_DQ_USER && ddq->d_flags != XFS_DQ_PROJ && ddq->d_flags != XFS_DQ_GROUP) { if (flags & XFS_QMOPT_DOWARN) xfs_alert(mp, "%s : XFS dquot ID 0x%x, unknown flags 0x%x", str, id, ddq->d_flags); errs++; } if (id != -1 && id != be32_to_cpu(ddq->d_id)) { if (flags & XFS_QMOPT_DOWARN) xfs_alert(mp, "%s : ondisk-dquot 0x%p, ID mismatch: " "0x%x expected, found id 0x%x", str, ddq, id, be32_to_cpu(ddq->d_id)); errs++; } if (!errs && ddq->d_id) { if (ddq->d_blk_softlimit && be64_to_cpu(ddq->d_bcount) > be64_to_cpu(ddq->d_blk_softlimit)) { if (!ddq->d_btimer) { if (flags & XFS_QMOPT_DOWARN) xfs_alert(mp, "%s : Dquot ID 0x%x (0x%p) BLK TIMER NOT STARTED", str, (int)be32_to_cpu(ddq->d_id), ddq); errs++; } } if (ddq->d_ino_softlimit && be64_to_cpu(ddq->d_icount) > be64_to_cpu(ddq->d_ino_softlimit)) { if (!ddq->d_itimer) { if (flags & XFS_QMOPT_DOWARN) xfs_alert(mp, "%s : Dquot ID 0x%x (0x%p) INODE TIMER NOT STARTED", str, (int)be32_to_cpu(ddq->d_id), ddq); errs++; } } if (ddq->d_rtb_softlimit && be64_to_cpu(ddq->d_rtbcount) > be64_to_cpu(ddq->d_rtb_softlimit)) { if (!ddq->d_rtbtimer) { if (flags & XFS_QMOPT_DOWARN) xfs_alert(mp, "%s : Dquot ID 0x%x (0x%p) RTBLK TIMER NOT STARTED", str, (int)be32_to_cpu(ddq->d_id), ddq); errs++; } } } if (!errs || !(flags & XFS_QMOPT_DQREPAIR)) return errs; if (flags & XFS_QMOPT_DOWARN) xfs_notice(mp, "Re-initializing dquot ID 0x%x", id); /* * Typically, a repair is only requested by quotacheck. */ ASSERT(id != -1); ASSERT(flags & XFS_QMOPT_DQREPAIR); memset(d, 0, sizeof(xfs_dqblk_t)); d->dd_diskdq.d_magic = cpu_to_be16(XFS_DQUOT_MAGIC); d->dd_diskdq.d_version = XFS_DQUOT_VERSION; d->dd_diskdq.d_flags = type; d->dd_diskdq.d_id = cpu_to_be32(id); if (xfs_sb_version_hascrc(&mp->m_sb)) { uuid_copy(&d->dd_uuid, &mp->m_sb.sb_uuid); xfs_update_cksum((char *)d, sizeof(struct xfs_dqblk), XFS_DQUOT_CRC_OFF); } return errs; } STATIC bool xfs_dquot_buf_verify_crc( struct xfs_mount *mp, struct xfs_buf *bp) { struct xfs_dqblk *d = (struct xfs_dqblk *)bp->b_addr; int ndquots; int i; if (!xfs_sb_version_hascrc(&mp->m_sb)) return true; /* * if we are in log recovery, the quota subsystem has not been * initialised so we have no quotainfo structure. In that case, we need * to manually calculate the number of dquots in the buffer. */ if (mp->m_quotainfo) ndquots = mp->m_quotainfo->qi_dqperchunk; else ndquots = xfs_calc_dquots_per_chunk(mp, XFS_BB_TO_FSB(mp, bp->b_length)); for (i = 0; i < ndquots; i++, d++) { if (!xfs_verify_cksum((char *)d, sizeof(struct xfs_dqblk), XFS_DQUOT_CRC_OFF)) return false; if (!uuid_equal(&d->dd_uuid, &mp->m_sb.sb_uuid)) return false; } return true; } STATIC bool xfs_dquot_buf_verify( struct xfs_mount *mp, struct xfs_buf *bp) { struct xfs_dqblk *d = (struct xfs_dqblk *)bp->b_addr; xfs_dqid_t id = 0; int ndquots; int i; /* * if we are in log recovery, the quota subsystem has not been * initialised so we have no quotainfo structure. In that case, we need * to manually calculate the number of dquots in the buffer. */ if (mp->m_quotainfo) ndquots = mp->m_quotainfo->qi_dqperchunk; else ndquots = xfs_calc_dquots_per_chunk(mp, bp->b_length); /* * On the first read of the buffer, verify that each dquot is valid. * We don't know what the id of the dquot is supposed to be, just that * they should be increasing monotonically within the buffer. If the * first id is corrupt, then it will fail on the second dquot in the * buffer so corruptions could point to the wrong dquot in this case. */ for (i = 0; i < ndquots; i++) { struct xfs_disk_dquot *ddq; int error; ddq = &d[i].dd_diskdq; if (i == 0) id = be32_to_cpu(ddq->d_id); error = xfs_dqcheck(mp, ddq, id + i, 0, XFS_QMOPT_DOWARN, "xfs_dquot_buf_verify"); if (error) return false; } return true; } static void xfs_dquot_buf_read_verify( struct xfs_buf *bp) { struct xfs_mount *mp = bp->b_target->bt_mount; if (!xfs_dquot_buf_verify_crc(mp, bp) || !xfs_dquot_buf_verify(mp, bp)) { XFS_CORRUPTION_ERROR(__func__, XFS_ERRLEVEL_LOW, mp, bp->b_addr); xfs_buf_ioerror(bp, EFSCORRUPTED); } } /* * we don't calculate the CRC here as that is done when the dquot is flushed to * the buffer after the update is done. This ensures that the dquot in the * buffer always has an up-to-date CRC value. */ static void xfs_dquot_buf_write_verify( struct xfs_buf *bp) { struct xfs_mount *mp = bp->b_target->bt_mount; if (!xfs_dquot_buf_verify(mp, bp)) { XFS_CORRUPTION_ERROR(__func__, XFS_ERRLEVEL_LOW, mp, bp->b_addr); xfs_buf_ioerror(bp, EFSCORRUPTED); return; } }


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