Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   1) // SPDX-License-Identifier: GPL-2.0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   3)  * Copyright (c) 2008-2010, 2013 Dave Chinner
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   4)  * All Rights Reserved.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   5)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   6) #include "xfs.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   7) #include "xfs_fs.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   8) #include "xfs_shared.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   9) #include "xfs_format.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  10) #include "xfs_log_format.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  11) #include "xfs_trans_resv.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  12) #include "xfs_mount.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  13) #include "xfs_inode.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  14) #include "xfs_trans.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  15) #include "xfs_trans_priv.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  16) #include "xfs_icreate_item.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  17) #include "xfs_log.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  18) #include "xfs_log_priv.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  19) #include "xfs_log_recover.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  20) #include "xfs_ialloc.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  21) #include "xfs_trace.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  22) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  23) kmem_zone_t	*xfs_icreate_zone;		/* inode create item zone */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  24) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  25) static inline struct xfs_icreate_item *ICR_ITEM(struct xfs_log_item *lip)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  26) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  27) 	return container_of(lip, struct xfs_icreate_item, ic_item);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  28) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  29) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  30) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  31)  * This returns the number of iovecs needed to log the given inode item.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  32)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  33)  * We only need one iovec for the icreate log structure.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  34)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  35) STATIC void
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  36) xfs_icreate_item_size(
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  37) 	struct xfs_log_item	*lip,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  38) 	int			*nvecs,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  39) 	int			*nbytes)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  40) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  41) 	*nvecs += 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  42) 	*nbytes += sizeof(struct xfs_icreate_log);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  43) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  44) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  45) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  46)  * This is called to fill in the vector of log iovecs for the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  47)  * given inode create log item.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  48)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  49) STATIC void
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  50) xfs_icreate_item_format(
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  51) 	struct xfs_log_item	*lip,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  52) 	struct xfs_log_vec	*lv)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  53) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  54) 	struct xfs_icreate_item	*icp = ICR_ITEM(lip);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  55) 	struct xfs_log_iovec	*vecp = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  56) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  57) 	xlog_copy_iovec(lv, &vecp, XLOG_REG_TYPE_ICREATE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  58) 			&icp->ic_format,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  59) 			sizeof(struct xfs_icreate_log));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  60) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  61) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  62) STATIC void
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  63) xfs_icreate_item_release(
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  64) 	struct xfs_log_item	*lip)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  65) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  66) 	kmem_cache_free(xfs_icreate_zone, ICR_ITEM(lip));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  67) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  68) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  69) static const struct xfs_item_ops xfs_icreate_item_ops = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  70) 	.flags		= XFS_ITEM_RELEASE_WHEN_COMMITTED,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  71) 	.iop_size	= xfs_icreate_item_size,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  72) 	.iop_format	= xfs_icreate_item_format,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  73) 	.iop_release	= xfs_icreate_item_release,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  74) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  75) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  76) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  77) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  78)  * Initialize the inode log item for a newly allocated (in-core) inode.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  79)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  80)  * Inode extents can only reside within an AG. Hence specify the starting
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  81)  * block for the inode chunk by offset within an AG as well as the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  82)  * length of the allocated extent.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  83)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  84)  * This joins the item to the transaction and marks it dirty so
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  85)  * that we don't need a separate call to do this, nor does the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  86)  * caller need to know anything about the icreate item.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  87)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  88) void
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  89) xfs_icreate_log(
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  90) 	struct xfs_trans	*tp,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  91) 	xfs_agnumber_t		agno,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  92) 	xfs_agblock_t		agbno,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  93) 	unsigned int		count,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  94) 	unsigned int		inode_size,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  95) 	xfs_agblock_t		length,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  96) 	unsigned int		generation)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  97) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  98) 	struct xfs_icreate_item	*icp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  99) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) 	icp = kmem_cache_zalloc(xfs_icreate_zone, GFP_KERNEL | __GFP_NOFAIL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) 	xfs_log_item_init(tp->t_mountp, &icp->ic_item, XFS_LI_ICREATE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) 			  &xfs_icreate_item_ops);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) 	icp->ic_format.icl_type = XFS_LI_ICREATE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) 	icp->ic_format.icl_size = 1;	/* single vector */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) 	icp->ic_format.icl_ag = cpu_to_be32(agno);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) 	icp->ic_format.icl_agbno = cpu_to_be32(agbno);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) 	icp->ic_format.icl_count = cpu_to_be32(count);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) 	icp->ic_format.icl_isize = cpu_to_be32(inode_size);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) 	icp->ic_format.icl_length = cpu_to_be32(length);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) 	icp->ic_format.icl_gen = cpu_to_be32(generation);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) 	xfs_trans_add_item(tp, &icp->ic_item);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) 	tp->t_flags |= XFS_TRANS_DIRTY;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) 	set_bit(XFS_LI_DIRTY, &icp->ic_item.li_flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) static enum xlog_recover_reorder
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) xlog_recover_icreate_reorder(
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) 		struct xlog_recover_item *item)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) 	/*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) 	 * Inode allocation buffers must be replayed before subsequent inode
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) 	 * items try to modify those buffers.  ICREATE items are the logical
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) 	 * equivalent of logging a newly initialized inode buffer, so recover
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) 	 * these at the same time that we recover logged buffers.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) 	 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) 	return XLOG_REORDER_BUFFER_LIST;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133)  * This routine is called when an inode create format structure is found in a
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134)  * committed transaction in the log.  It's purpose is to initialise the inodes
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135)  * being allocated on disk. This requires us to get inode cluster buffers that
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136)  * match the range to be initialised, stamped with inode templates and written
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137)  * by delayed write so that subsequent modifications will hit the cached buffer
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138)  * and only need writing out at the end of recovery.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) STATIC int
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) xlog_recover_icreate_commit_pass2(
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) 	struct xlog			*log,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) 	struct list_head		*buffer_list,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) 	struct xlog_recover_item	*item,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) 	xfs_lsn_t			lsn)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) 	struct xfs_mount		*mp = log->l_mp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) 	struct xfs_icreate_log		*icl;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) 	struct xfs_ino_geometry		*igeo = M_IGEO(mp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) 	xfs_agnumber_t			agno;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) 	xfs_agblock_t			agbno;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) 	unsigned int			count;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) 	unsigned int			isize;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) 	xfs_agblock_t			length;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) 	int				bb_per_cluster;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) 	int				cancel_count;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) 	int				nbufs;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) 	int				i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) 	icl = (struct xfs_icreate_log *)item->ri_buf[0].i_addr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) 	if (icl->icl_type != XFS_LI_ICREATE) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) 		xfs_warn(log->l_mp, "xlog_recover_do_icreate_trans: bad type");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) 		return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) 	if (icl->icl_size != 1) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) 		xfs_warn(log->l_mp, "xlog_recover_do_icreate_trans: bad icl size");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) 		return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) 	agno = be32_to_cpu(icl->icl_ag);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) 	if (agno >= mp->m_sb.sb_agcount) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) 		xfs_warn(log->l_mp, "xlog_recover_do_icreate_trans: bad agno");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) 		return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) 	agbno = be32_to_cpu(icl->icl_agbno);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) 	if (!agbno || agbno == NULLAGBLOCK || agbno >= mp->m_sb.sb_agblocks) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) 		xfs_warn(log->l_mp, "xlog_recover_do_icreate_trans: bad agbno");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) 		return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) 	isize = be32_to_cpu(icl->icl_isize);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) 	if (isize != mp->m_sb.sb_inodesize) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) 		xfs_warn(log->l_mp, "xlog_recover_do_icreate_trans: bad isize");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) 		return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) 	count = be32_to_cpu(icl->icl_count);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) 	if (!count) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) 		xfs_warn(log->l_mp, "xlog_recover_do_icreate_trans: bad count");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) 		return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) 	length = be32_to_cpu(icl->icl_length);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) 	if (!length || length >= mp->m_sb.sb_agblocks) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) 		xfs_warn(log->l_mp, "xlog_recover_do_icreate_trans: bad length");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) 		return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) 	/*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) 	 * The inode chunk is either full or sparse and we only support
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) 	 * m_ino_geo.ialloc_min_blks sized sparse allocations at this time.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) 	 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) 	if (length != igeo->ialloc_blks &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) 	    length != igeo->ialloc_min_blks) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) 		xfs_warn(log->l_mp,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) 			 "%s: unsupported chunk length", __FUNCTION__);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) 		return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) 	/* verify inode count is consistent with extent length */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) 	if ((count >> mp->m_sb.sb_inopblog) != length) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) 		xfs_warn(log->l_mp,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) 			 "%s: inconsistent inode count and chunk length",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) 			 __FUNCTION__);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) 		return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) 	/*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) 	 * The icreate transaction can cover multiple cluster buffers and these
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) 	 * buffers could have been freed and reused. Check the individual
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) 	 * buffers for cancellation so we don't overwrite anything written after
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) 	 * a cancellation.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) 	 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) 	bb_per_cluster = XFS_FSB_TO_BB(mp, igeo->blocks_per_cluster);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) 	nbufs = length / igeo->blocks_per_cluster;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) 	for (i = 0, cancel_count = 0; i < nbufs; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) 		xfs_daddr_t	daddr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) 		daddr = XFS_AGB_TO_DADDR(mp, agno,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) 				agbno + i * igeo->blocks_per_cluster);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) 		if (xlog_is_buffer_cancelled(log, daddr, bb_per_cluster))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) 			cancel_count++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) 	/*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) 	 * We currently only use icreate for a single allocation at a time. This
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) 	 * means we should expect either all or none of the buffers to be
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) 	 * cancelled. Be conservative and skip replay if at least one buffer is
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) 	 * cancelled, but warn the user that something is awry if the buffers
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) 	 * are not consistent.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) 	 *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) 	 * XXX: This must be refined to only skip cancelled clusters once we use
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) 	 * icreate for multiple chunk allocations.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) 	 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) 	ASSERT(!cancel_count || cancel_count == nbufs);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) 	if (cancel_count) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) 		if (cancel_count != nbufs)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) 			xfs_warn(mp,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) 	"WARNING: partial inode chunk cancellation, skipped icreate.");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) 		trace_xfs_log_recover_icreate_cancel(log, icl);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) 		return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) 	trace_xfs_log_recover_icreate_recover(log, icl);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) 	return xfs_ialloc_inode_init(mp, NULL, buffer_list, count, agno, agbno,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) 				     length, be32_to_cpu(icl->icl_gen));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) const struct xlog_recover_item_ops xlog_icreate_item_ops = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) 	.item_type		= XFS_LI_ICREATE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) 	.reorder		= xlog_recover_icreate_reorder,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) 	.commit_pass2		= xlog_recover_icreate_commit_pass2,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) };