makefs: share denode.h between kernel msdosfs and makefs

There is no need to duplicate this file when it can be trivially
shared (just exposing sections previously under #ifdef _KERNEL).

MFC with:

makefs: share denode.h between kernel msdosfs and makefs

There is no need to duplicate this file when it can be trivially
shared (just exposing sections previously under #ifdef _KERNEL).

MFC with: r351273
Differential Revision: The FreeBSD Foundation

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makefs: share fat.h between kernel msdosfs and makefs

There is no reason to duplicate this file when it can be trivially
shared (just exposing one section previously under #ifdef _KERNEL).

Reviewed

makefs: share fat.h between kernel msdosfs and makefs

There is no reason to duplicate this file when it can be trivially
shared (just exposing one section previously under #ifdef _KERNEL).

Reviewed by: imp, cem
MFC with: r351273
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D21346

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makefs: use `char *` not `void *` for buf b_data, drop casts in msdos

(The kernel uses caddr_t.)

Suggested by: cem
Reviewed by: cem
MFC with: r351273
Sponsored by: The FreeBSD Foundation
Differenti

makefs: use `char *` not `void *` for buf b_data, drop casts in msdos

(The kernel uses caddr_t.)

Suggested by: cem
Reviewed by: cem
MFC with: r351273
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D21348

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makefs: avoid "dereferencing 'void *' pointer" warnings

On GCC 4.2.1 archs

MFC with: r351273
Sponsored by: The FreeBSD Foundation

makefs: add msdosfs (FAT) support

Add FAT support to makefs by copying some files from sys/fs/msdosfs/ and
updating others with changes from NetBSD.

The six files copied from sys/fs/msdosfs at r348

makefs: add msdosfs (FAT) support

Add FAT support to makefs by copying some files from sys/fs/msdosfs/ and
updating others with changes from NetBSD.

The six files copied from sys/fs/msdosfs at r348251 and modified are:
denode.h direntry.h fat.h msdosfs_fat.c msdosfs_lookup.c msdosfsmount.h

I would prefer to avoid the duplication, but reluctance to doing so was
expressed in a previous review (D11197); for now copy the files and
revisit in the future.

Submitted by: Siva Mahadevan
Discussed with: cem, imp
MFC after: 1 month
Relnotes: Yes
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D16438

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