diff options
| author | Jean-Sébastien Pédron <dumbbell@FreeBSD.org> | 2022-11-11 20:36:00 +0300 |
|---|---|---|
| committer | Jean-Sébastien Pédron <dumbbell@FreeBSD.org> | 2022-11-11 20:36:00 +0300 |
| commit | c72dd0aabe25dd4ea82e5b83d36f706d8bd2e783 (patch) | |
| tree | e29dcfd45e08fb4a1832c2c84638fdee977807c0 | |
| parent | 415ca4d27d76e0787d65108fd96c980ea68c6eff (diff) | |
linuxkpi: Introduce `vma_set_file()`
This code was moved from the i915 driver in Linux 5.11.
Reviewed by: manu
Approved by: manu
Differential Revision: https://reviews.freebsd.org/D36957
| -rw-r--r-- | sys/compat/linuxkpi/common/include/linux/mm.h | 2 | ||||
| -rw-r--r-- | sys/compat/linuxkpi/common/src/linux_compat.c | 12 |
2 files changed, 14 insertions, 0 deletions
diff --git a/sys/compat/linuxkpi/common/include/linux/mm.h b/sys/compat/linuxkpi/common/include/linux/mm.h index a0a96bcdb5a2..930d588902af 100644 --- a/sys/compat/linuxkpi/common/include/linux/mm.h +++ b/sys/compat/linuxkpi/common/include/linux/mm.h @@ -311,4 +311,6 @@ void lkpi_unmap_mapping_range(void *obj, loff_t const holebegin __unused, #define PAGE_ALIGNED(p) __is_aligned(p, PAGE_SIZE) +void vma_set_file(struct vm_area_struct *vma, struct linux_file *file); + #endif /* _LINUXKPI_LINUX_MM_H_ */ diff --git a/sys/compat/linuxkpi/common/src/linux_compat.c b/sys/compat/linuxkpi/common/src/linux_compat.c index 1367556a6f43..26af40836c64 100644 --- a/sys/compat/linuxkpi/common/src/linux_compat.c +++ b/sys/compat/linuxkpi/common/src/linux_compat.c @@ -834,6 +834,18 @@ zap_vma_ptes(struct vm_area_struct *vma, unsigned long address, return (0); } +void +vma_set_file(struct vm_area_struct *vma, struct linux_file *file) +{ + struct linux_file *tmp; + + /* Changing an anonymous vma with this is illegal */ + get_file(file); + tmp = vma->vm_file; + vma->vm_file = file; + fput(tmp); +} + static struct file_operations dummy_ldev_ops = { /* XXXKIB */ }; |