add new system file

hc

2024-02-20 102a0743326a03cd1a1202ceda21e175b7d3575c

 kernel/fs/omfs/inode.c
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@@ -1,7 +1,7 @@
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+// SPDX-License-Identifier: GPL-2.0-only
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 /*
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  * Optimized MPEG FS - inode and super operations.
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  * Copyright (C) 2006 Bob Copeland <me@bobcopeland.com>
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- * Released under GPL v2.
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  */
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 #include <linux/module.h>
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 #include <linux/sched.h>
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@@ -20,6 +20,7 @@
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 MODULE_AUTHOR("Bob Copeland <me@bobcopeland.com>");
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 MODULE_DESCRIPTION("OMFS (ReplayTV/Karma) Filesystem for Linux");
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 MODULE_LICENSE("GPL");
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+MODULE_IMPORT_NS(ANDROID_GKI_VFS_EXPORT_ONLY);
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 struct buffer_head *omfs_bread(struct super_block *sb, sector_t block)
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 {
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@@ -282,8 +283,7 @@
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 	buf->f_blocks = sbi->s_num_blocks;
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 	buf->f_files = sbi->s_num_blocks;
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 	buf->f_namelen = OMFS_NAMELEN;
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-	buf->f_fsid.val[0] = (u32)id;
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-	buf->f_fsid.val[1] = (u32)(id >> 32);
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+	buf->f_fsid = u64_to_fsid(id);
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 	buf->f_bfree = buf->f_bavail = buf->f_ffree =
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 		omfs_count_free(s);
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@@ -363,12 +363,11 @@
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 		bh = sb_bread(sb, block++);
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 		if (!bh)
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 			goto nomem_free;
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-		*ptr = kmalloc(sb->s_blocksize, GFP_KERNEL);
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+		*ptr = kmemdup(bh->b_data, sb->s_blocksize, GFP_KERNEL);
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 		if (!*ptr) {
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 			brelse(bh);
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 			goto nomem_free;
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 		}
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-		memcpy(*ptr, bh->b_data, sb->s_blocksize);
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 		if (count < sb->s_blocksize)
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 			memset((void *)*ptr + count, 0xff,
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 				sb->s_blocksize - count);
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@@ -478,6 +477,10 @@
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 	sb->s_maxbytes = 0xffffffff;
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+	sb->s_time_gran = NSEC_PER_MSEC;
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+	sb->s_time_min = 0;
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+	sb->s_time_max = U64_MAX / MSEC_PER_SEC;
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+
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 	sb_set_blocksize(sb, 0x200);
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 	bh = sb_bread(sb, 0);