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
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() ...
dir.c
// SPDX-License-Identifier: GPL-2.0
/*
* QNX4 file system, Linux implementation.
*
* Version : 0.2.1
*
* Using parts of the xiafs filesystem.
*
* History :
*
* 28-05-1998 by Richard Frowijn : first release.
* 20-06-1998 by Frank Denis : Linux 2.1.99+ & dcache support.
*/
#include <linux/buffer_head.h>
#include "qnx4.h"
static int qnx4_readdir(struct file *file, struct dir_context *ctx)
{
struct inode *inode = file_inode(file);
unsigned int offset;
struct buffer_head *bh;
struct qnx4_inode_entry *de;
struct qnx4_link_info *le;
unsigned long blknum;
int ix, ino;
int size;
QNX4DEBUG((KERN_INFO "qnx4_readdir:i_size = %ld\n", (long) inode->i_size));
QNX4DEBUG((KERN_INFO "pos = %ld\n", (long) ctx->pos));
while (ctx->pos < inode->i_size) {
blknum = qnx4_block_map(inode, ctx->pos >> QNX4_BLOCK_SIZE_BITS);
bh = sb_bread(inode->i_sb, blknum);
if (bh == NULL) {
printk(KERN_ERR "qnx4_readdir: bread failed (%ld)\n", blknum);
return 0;
}
ix = (ctx->pos >> QNX4_DIR_ENTRY_SIZE_BITS) % QNX4_INODES_PER_BLOCK;
for (; ix < QNX4_INODES_PER_BLOCK; ix++, ctx->pos += QNX4_DIR_ENTRY_SIZE) {
offset = ix * QNX4_DIR_ENTRY_SIZE;
de = (struct qnx4_inode_entry *) (bh->b_data + offset);
if (!de->di_fname[0])
continue;
if (!(de->di_status & (QNX4_FILE_USED|QNX4_FILE_LINK)))
continue;
if (!(de->di_status & QNX4_FILE_LINK))
size = QNX4_SHORT_NAME_MAX;
else
size = QNX4_NAME_MAX;
size = strnlen(de->di_fname, size);
QNX4DEBUG((KERN_INFO "qnx4_readdir:%.*s\n", size, de->di_fname));
if (!(de->di_status & QNX4_FILE_LINK))
ino = blknum * QNX4_INODES_PER_BLOCK + ix - 1;
else {
le = (struct qnx4_link_info*)de;
ino = ( le32_to_cpu(le->dl_inode_blk) - 1 ) *
QNX4_INODES_PER_BLOCK +
le->dl_inode_ndx;
}
if (!dir_emit(ctx, de->di_fname, size, ino, DT_UNKNOWN)) {
brelse(bh);
return 0;
}
}
brelse(bh);
}
return 0;
}
const struct file_operations qnx4_dir_operations =
{
.llseek = generic_file_llseek,
.read = generic_read_dir,
.iterate_shared = qnx4_readdir,
.fsync = generic_file_fsync,
};
const struct inode_operations qnx4_dir_inode_operations =
{
.lookup = qnx4_lookup,
};
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