166dcda718
Add stub headers to support ext4l filesystem compilation: New headers: - bit_spinlock.h: bit-based spinlock stubs - blkdev.h: block device structures and operations - buffer_head.h: buffer head management with state functions - crc32c.h: CRC32C checksum stub - fs.h: filesystem structures (super_block, inode operations) - journal-head.h: journal buffer head structure - mutex.h: mutex stubs Updates to existing headers: - compat.h: add rcu_head callback structure - jbd2.h: add wait.h and init.h includes for types - sched.h: add current task stub - workqueue.h: fix flush_work macro warning These provide the minimal Linux kernel interfaces needed for ext4 code to compile in U-Boot's single-threaded environment. Co-developed-by: Claude Opus 4.5 <noreply@anthropic.com> Signed-off-by: Simon Glass <simon.glass@canonical.com>
19 lines
345 B
C
19 lines
345 B
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* Block device definitions
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*
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* Minimal version for U-Boot ext4l - based on Linux 6.18
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*/
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#ifndef _LINUX_BLKDEV_H
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#define _LINUX_BLKDEV_H
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#include <linux/types.h>
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struct block_device;
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struct gendisk;
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/* Block size helpers */
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#define bdev_logical_block_size(bdev) 512
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#endif /* _LINUX_BLKDEV_H */
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