Greg Kroah-Hartman
598cf27219
Link: https://lore.kernel.org/r/20260217200002.683975158@linuxfoundation.org Tested-by: Florian Fainelli <florian.fainelli@broadcom.com> Tested-by: Takeshi Ogasawara <takeshi.ogasawara@futuring-girl.com> Tested-by: Peter Schneider <pschneider1968@googlemail.com> Tested-by: Jon Hunter <jonathanh@nvidia.com> Tested-by: Salvatore Bonaccorso <carnil@debian.org> Tested-by: Brett A C Sheffield <bacs@librecast.net> Tested-by: Mark Brown <broonie@kernel.org> Tested-by: Luna Jernberg <droidbittin@gmail.com> Tested-by: Ronald Warsow <rwarsow@gmx.de> Tested-by: Justin M. Forbes <jforbes@fedoraproject.org> Tested-by: Ron Economos <re@w6rz.net> Tested-by: Miguel Ojeda <ojeda@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
27 lines
939 B
C
27 lines
939 B
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef __COW_H__
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#define __COW_H__
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#include <asm/types.h>
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extern int init_cow_file(int fd, char *cow_file, char *backing_file,
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int sectorsize, int alignment, int *bitmap_offset_out,
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unsigned long *bitmap_len_out, int *data_offset_out);
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extern int file_reader(__u64 offset, char *buf, int len, void *arg);
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extern int read_cow_header(int (*reader)(__u64, char *, int, void *),
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void *arg, __u32 *version_out,
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char **backing_file_out, long long *mtime_out,
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unsigned long long *size_out, int *sectorsize_out,
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__u32 *align_out, int *bitmap_offset_out);
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extern int write_cow_header(char *cow_file, int fd, char *backing_file,
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int sectorsize, int alignment,
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unsigned long long *size);
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extern void cow_sizes(int version, __u64 size, int sectorsize, int align,
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int bitmap_offset, unsigned long *bitmap_len_out,
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int *data_offset_out);
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#endif
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