Skip to main content

Browse the archive

Revision 8b9cc17a46215af733c83bea36366419133dfa09 authored by Linus Torvalds on 11 July 2021, 17:59:53 UTC, committed by Linus Torvalds on 11 July 2021, 17:59:53 UTC 
Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
 
Pull more SCSI updates from James Bottomley:
 "This is a set of minor fixes and clean ups in the core and various
  drivers.

  The only core change in behaviour is the I/O retry for spinup notify,
  but that shouldn't impact anything other than the failing case"

* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (23 commits)
  scsi: virtio_scsi: Add validation for residual bytes from response
  scsi: ipr: System crashes when seeing type 20 error
  scsi: core: Retry I/O for Notify (Enable Spinup) Required error
  scsi: mpi3mr: Fix warnings reported by smatch
  scsi: qedf: Add check to synchronize abort and flush
  scsi: MAINTAINERS: Add mpi3mr driver maintainers
  scsi: libfc: Fix array index out of bound exception
  scsi: mvsas: Use DEVICE_ATTR_RO()/RW() macro
  scsi: megaraid_mbox: Use DEVICE_ATTR_ADMIN_RO() macro
  scsi: qedf: Use DEVICE_ATTR_RO() macro
  scsi: qedi: Use DEVICE_ATTR_RO() macro
  scsi: message: mptfc: Switch from pci_ to dma_ API
  scsi: be2iscsi: Fix some missing space in some messages
  scsi: be2iscsi: Fix an error handling path in beiscsi_dev_probe()
  scsi: ufs: Fix build warning without CONFIG_PM
  scsi: bnx2fc: Remove meaningless bnx2fc_abts_cleanup() return value assignment
  scsi: qla2xxx: Add heartbeat check
  scsi: virtio_scsi: Do not overwrite SCSI status
  scsi: libsas: Add LUN number check in .slave_alloc callback
  scsi: core: Inline scsi_mq_alloc_queue()
  ...
2 parent s b1412bd + 5f638e5
Raw File
io.c 
// SPDX-License-Identifier: GPL-2.0
/*
 * linux/fs/befs/io.c
 *
 * Copyright (C) 2001 Will Dyson <will_dyson@pobox.com
 *
 * Based on portions of file.c and inode.c
 * by Makoto Kato (m_kato@ga2.so-net.ne.jp)
 *
 * Many thanks to Dominic Giampaolo, author of Practical File System
 * Design with the Be File System, for such a helpful book.
 *
 */

#include <linux/buffer_head.h>

#include "befs.h"
#include "io.h"

/*
 * Converts befs notion of disk addr to a disk offset and uses
 * linux kernel function sb_bread() to get the buffer containing
 * the offset.
 */

struct buffer_head *
befs_bread_iaddr(struct super_block *sb, befs_inode_addr iaddr)
{
	struct buffer_head *bh;
	befs_blocknr_t block;
	struct befs_sb_info *befs_sb = BEFS_SB(sb);

	befs_debug(sb, "---> Enter %s "
		   "[%u, %hu, %hu]", __func__, iaddr.allocation_group,
		   iaddr.start, iaddr.len);

	if (iaddr.allocation_group > befs_sb->num_ags) {
		befs_error(sb, "BEFS: Invalid allocation group %u, max is %u",
			   iaddr.allocation_group, befs_sb->num_ags);
		goto error;
	}

	block = iaddr2blockno(sb, &iaddr);

	befs_debug(sb, "%s: offset = %lu", __func__, (unsigned long)block);

	bh = sb_bread(sb, block);

	if (bh == NULL) {
		befs_error(sb, "Failed to read block %lu",
			   (unsigned long)block);
		goto error;
	}

	befs_debug(sb, "<--- %s", __func__);
	return bh;

error:
	befs_debug(sb, "<--- %s ERROR", __func__);
	return NULL;
}
back to top