ff4a549a34
Add Linux compatibility header stubs needed to compile extents_status.c: - backing-dev.h: Backing device info stub - dax.h: Direct Access (DAX) stubs - iomap.h: I/O mapping operations and structures - mman.h: Memory mapping flags - mount.h: VFS mount structures - pagevec.h: Page vector batching - pfn_t.h: Page frame number type - posix_acl_xattr.h: POSIX ACL xattr definitions - proc_fs.h: Proc filesystem stub - uio.h: User I/O vector definitions - xattr.h: Extended attributes - trace/events/ext4.h: Trace event stubs Co-developed-by: Claude Opus 4.5 <noreply@anthropic.com> Signed-off-by: Simon Glass <simon.glass@canonical.com>
54 lines
1.1 KiB
C
54 lines
1.1 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef _LINUX_DAX_H
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#define _LINUX_DAX_H
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#include <linux/types.h>
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#include <linux/pfn_t.h>
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struct address_space;
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struct dax_device;
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struct vm_area_struct;
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struct iomap_ops;
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struct kiocb;
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struct iov_iter;
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struct vm_fault;
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typedef unsigned int vm_fault_t;
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#define VM_FAULT_SIGBUS 0x0002
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#define VM_FAULT_NOPAGE 0x0100
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/* DAX is not supported in U-Boot - provide stubs */
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static inline ssize_t
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dax_iomap_rw(struct kiocb *iocb, struct iov_iter *iter,
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const struct iomap_ops *ops)
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{
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return -EOPNOTSUPP;
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}
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static inline vm_fault_t
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dax_iomap_fault(struct vm_fault *vmf, unsigned int order, pfn_t *pfnp,
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int *errp, const struct iomap_ops *ops)
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{
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return VM_FAULT_SIGBUS;
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}
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static inline vm_fault_t
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dax_finish_sync_fault(struct vm_fault *vmf, unsigned int order, pfn_t pfn)
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{
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return VM_FAULT_SIGBUS;
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}
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static inline bool dax_mapping(struct address_space *mapping)
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{
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return false;
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}
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static inline bool daxdev_mapping_supported(struct vm_area_struct *vma,
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struct dax_device *dax_dev)
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{
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return false;
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}
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#endif /* _LINUX_DAX_H */
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