diff options
| author | Haren Myneni <haren@linux.ibm.com> | 2021-06-17 23:31:43 +0300 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2021-06-20 14:58:56 +0300 |
| commit | 3856aa542d90ed79cd5ed4cfd828b1fb04017131 (patch) | |
| tree | 12568cf37fd354fcff057329ffa7d4a88680e025 /arch/powerpc/platforms/powernv/vas.h | |
| parent | 1a0d0d5ed5e3cd9e3fc1ad4459f1db2f3618fce0 (diff) | |
| download | linux-3856aa542d90ed79cd5ed4cfd828b1fb04017131.tar.xz | |
powerpc/vas: Create take/drop pid and mm reference functions
Take pid and mm references when each window opens and drops during
close. This functionality is needed for powerNV and pseries. So
this patch defines the existing code as functions in common book3s
platform vas-api.c
Signed-off-by: Haren Myneni <haren@linux.ibm.com>
Reviewed-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/2fa40df962250a737c804e58202924717b39e381.camel@linux.ibm.com
Diffstat (limited to 'arch/powerpc/platforms/powernv/vas.h')
| -rw-r--r-- | arch/powerpc/platforms/powernv/vas.h | 6 |
1 files changed, 2 insertions, 4 deletions
diff --git a/arch/powerpc/platforms/powernv/vas.h b/arch/powerpc/platforms/powernv/vas.h index c2b1e12efca5..614db6a80c67 100644 --- a/arch/powerpc/platforms/powernv/vas.h +++ b/arch/powerpc/platforms/powernv/vas.h @@ -357,11 +357,9 @@ struct vas_window { bool user_win; /* True if user space window */ void *hvwc_map; /* HV window context */ void *uwc_map; /* OS/User window context */ - struct pid *pid; /* Linux process id of owner */ - struct pid *tgid; /* Thread group ID of owner */ - struct mm_struct *mm; /* Linux process mm_struct */ int wcreds_max; /* Window credits */ + struct vas_user_win_ref task_ref; char *dbgname; struct dentry *dbgdir; @@ -443,7 +441,7 @@ extern void vas_win_paste_addr(struct vas_window *window, u64 *addr, static inline int vas_window_pid(struct vas_window *window) { - return pid_vnr(window->pid); + return pid_vnr(window->task_ref.pid); } static inline void vas_log_write(struct vas_window *win, char *name, |