From 102a0743326a03cd1a1202ceda21e175b7d3575c Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Tue, 20 Feb 2024 01:20:52 +0000
Subject: [PATCH] add new system file
---
kernel/fs/hfsplus/wrapper.c | 35 +++++++++++++++++++----------------
1 files changed, 19 insertions(+), 16 deletions(-)
diff --git a/kernel/fs/hfsplus/wrapper.c b/kernel/fs/hfsplus/wrapper.c
index 08c1580..0350dc7 100644
--- a/kernel/fs/hfsplus/wrapper.c
+++ b/kernel/fs/hfsplus/wrapper.c
@@ -127,31 +127,34 @@
static int hfsplus_get_last_session(struct super_block *sb,
sector_t *start, sector_t *size)
{
- struct cdrom_multisession ms_info;
- struct cdrom_tocentry te;
- int res;
+ struct cdrom_device_info *cdi = disk_to_cdi(sb->s_bdev->bd_disk);
/* default values */
*start = 0;
*size = i_size_read(sb->s_bdev->bd_inode) >> 9;
if (HFSPLUS_SB(sb)->session >= 0) {
+ struct cdrom_tocentry te;
+
+ if (!cdi)
+ return -EINVAL;
+
te.cdte_track = HFSPLUS_SB(sb)->session;
te.cdte_format = CDROM_LBA;
- res = ioctl_by_bdev(sb->s_bdev,
- CDROMREADTOCENTRY, (unsigned long)&te);
- if (!res && (te.cdte_ctrl & CDROM_DATA_TRACK) == 4) {
- *start = (sector_t)te.cdte_addr.lba << 2;
- return 0;
+ if (cdrom_read_tocentry(cdi, &te) ||
+ (te.cdte_ctrl & CDROM_DATA_TRACK) != 4) {
+ pr_err("invalid session number or type of track\n");
+ return -EINVAL;
}
- pr_err("invalid session number or type of track\n");
- return -EINVAL;
+ *start = (sector_t)te.cdte_addr.lba << 2;
+ } else if (cdi) {
+ struct cdrom_multisession ms_info;
+
+ ms_info.addr_format = CDROM_LBA;
+ if (cdrom_multisession(cdi, &ms_info) == 0 && ms_info.xa_flag)
+ *start = (sector_t)ms_info.addr.lba << 2;
}
- ms_info.addr_format = CDROM_LBA;
- res = ioctl_by_bdev(sb->s_bdev, CDROMMULTISESSION,
- (unsigned long)&ms_info);
- if (!res && ms_info.xa_flag)
- *start = (sector_t)ms_info.addr.lba << 2;
+
return 0;
}
@@ -192,7 +195,7 @@
switch (sbi->s_vhdr->signature) {
case cpu_to_be16(HFSPLUS_VOLHEAD_SIGX):
set_bit(HFSPLUS_SB_HFSX, &sbi->flags);
- /*FALLTHRU*/
+ fallthrough;
case cpu_to_be16(HFSPLUS_VOLHEAD_SIG):
break;
case cpu_to_be16(HFSP_WRAP_MAGIC):
--
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