The patch titled
gfs2: make gfs2_holder.gh_owner_pid be a struct pid *
has been removed from the -mm tree. Its filename was
gfs2-make-gfs2_holdergh_owner_pid-be-a-struct-pid.patch
This patch was dropped because it was merged into mainline or a subsystem tree
The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/
------------------------------------------------------
Subject: gfs2: make gfs2_holder.gh_owner_pid be a struct pid *
From: Pavel Emelyanov <xemul@xxxxxxxxxx>
The gl_owner_pid field is used to get the holder task by its pid and check
whether the current is a holder, so make it in a proper manner, i.e. via the
struct pid * manipulations.
Signed-off-by: Pavel Emelyanov <xemul@xxxxxxxxxx>
Cc: "Eric W. Biederman" <ebiederm@xxxxxxxxxxxx>
Acked-by: Steven Whitehouse <swhiteho@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
fs/gfs2/glock.c | 18 +++++++++++-------
fs/gfs2/glock.h | 4 +++-
fs/gfs2/incore.h | 2 +-
3 files changed, 15 insertions(+), 9 deletions(-)
diff -puN fs/gfs2/glock.c~gfs2-make-gfs2_holdergh_owner_pid-be-a-struct-pid fs/gfs2/glock.c
--- a/fs/gfs2/glock.c~gfs2-make-gfs2_holdergh_owner_pid-be-a-struct-pid
+++ a/fs/gfs2/glock.c
@@ -399,7 +399,7 @@ void gfs2_holder_init(struct gfs2_glock
INIT_LIST_HEAD(&gh->gh_list);
gh->gh_gl = gl;
gh->gh_ip = (unsigned long)__builtin_return_address(0);
- gh->gh_owner_pid = current->pid;
+ gh->gh_owner_pid = get_pid(task_pid(current));
gh->gh_state = state;
gh->gh_flags = flags;
gh->gh_error = 0;
@@ -433,6 +433,7 @@ void gfs2_holder_reinit(unsigned int sta
void gfs2_holder_uninit(struct gfs2_holder *gh)
{
+ put_pid(gh->gh_owner_pid);
gfs2_glock_put(gh->gh_gl);
gh->gh_gl = NULL;
gh->gh_ip = 0;
@@ -1045,7 +1046,7 @@ static int glock_wait_internal(struct gf
}
static inline struct gfs2_holder *
-find_holder_by_owner(struct list_head *head, pid_t pid)
+find_holder_by_owner(struct list_head *head, struct pid *pid)
{
struct gfs2_holder *gh;
@@ -1082,7 +1083,7 @@ static void add_to_queue(struct gfs2_hol
struct gfs2_glock *gl = gh->gh_gl;
struct gfs2_holder *existing;
- BUG_ON(!gh->gh_owner_pid);
+ BUG_ON(gh->gh_owner_pid == NULL);
if (test_and_set_bit(HIF_WAIT, &gh->gh_iflags))
BUG();
@@ -1092,12 +1093,14 @@ static void add_to_queue(struct gfs2_hol
if (existing) {
print_symbol(KERN_WARNING "original: %s\n",
existing->gh_ip);
- printk(KERN_INFO "pid : %d\n", existing->gh_owner_pid);
+ printk(KERN_INFO "pid : %d\n",
+ pid_nr(existing->gh_owner_pid));
printk(KERN_INFO "lock type : %d lock state : %d\n",
existing->gh_gl->gl_name.ln_type,
existing->gh_gl->gl_state);
print_symbol(KERN_WARNING "new: %s\n", gh->gh_ip);
- printk(KERN_INFO "pid : %d\n", gh->gh_owner_pid);
+ printk(KERN_INFO "pid : %d\n",
+ pid_nr(gh->gh_owner_pid));
printk(KERN_INFO "lock type : %d lock state : %d\n",
gl->gl_name.ln_type, gl->gl_state);
BUG();
@@ -1798,8 +1801,9 @@ static int dump_holder(struct glock_iter
print_dbg(gi, " %s\n", str);
if (gh->gh_owner_pid) {
- print_dbg(gi, " owner = %ld ", (long)gh->gh_owner_pid);
- gh_owner = find_task_by_pid(gh->gh_owner_pid);
+ print_dbg(gi, " owner = %ld ",
+ (long)pid_nr(gh->gh_owner_pid));
+ gh_owner = pid_task(gh->gh_owner_pid, PIDTYPE_PID);
if (gh_owner)
print_dbg(gi, "(%s)\n", gh_owner->comm);
else
diff -puN fs/gfs2/glock.h~gfs2-make-gfs2_holdergh_owner_pid-be-a-struct-pid fs/gfs2/glock.h
--- a/fs/gfs2/glock.h~gfs2-make-gfs2_holdergh_owner_pid-be-a-struct-pid
+++ a/fs/gfs2/glock.h
@@ -36,11 +36,13 @@ static inline int gfs2_glock_is_locked_b
{
struct gfs2_holder *gh;
int locked = 0;
+ struct pid *pid;
/* Look in glock's list of holders for one with current task as owner */
spin_lock(&gl->gl_spin);
+ pid = task_pid(current);
list_for_each_entry(gh, &gl->gl_holders, gh_list) {
- if (gh->gh_owner_pid == current->pid) {
+ if (gh->gh_owner_pid == pid) {
locked = 1;
break;
}
diff -puN fs/gfs2/incore.h~gfs2-make-gfs2_holdergh_owner_pid-be-a-struct-pid fs/gfs2/incore.h
--- a/fs/gfs2/incore.h~gfs2-make-gfs2_holdergh_owner_pid-be-a-struct-pid
+++ a/fs/gfs2/incore.h
@@ -151,7 +151,7 @@ struct gfs2_holder {
struct list_head gh_list;
struct gfs2_glock *gh_gl;
- pid_t gh_owner_pid;
+ struct pid *gh_owner_pid;
unsigned int gh_state;
unsigned gh_flags;
_
Patches currently in -mm which might be from xemul@xxxxxxxxxx are
origin.patch
use-find_task_by_vpid-in-audit-code.patch
ia64-fix-ptrace-inside-a-namespace.patch
mips-use-find_task_by_vpid-in-system-calls.patch
deprecate-find_task_by_pid-kgdb.patch
add-the-namespaces-config-option.patch
move-the-uts-namespace-under-uts_ns-option.patch
move-the-ipc-namespace-under-ipc_ns-option.patch
cleanup-the-code-managed-with-the-user_ns-option.patch
cleanup-the-code-managed-with-the-user_ns-option-checkpatch-fixes.patch
cleanup-the-code-managed-with-pid_ns-option.patch
cleanup-the-code-managed-with-pid_ns-option-checkpatch-fixes.patch
mark-net_ns-with-depends-on-namespaces.patch
proc-seqfile-convert-proc_pid_status-to-properly-handle-pid-namespaces.patch
proc-seqfile-convert-proc_pid_status-to-properly-handle-pid-namespaces-checkpatch-fixes.patch
proc-seqfile-convert-proc_pid_status-to-properly-handle-pid-namespaces-nommu-fix.patch
proc-proper-pidns-handling-for-proc-self.patch
proc-fix-the-threaded-proc-self.patch
ipc-uninline-some-code-from-utilh.patch
ipc-make-struct-ipc_ids-static-in-ipc_namespace.patch
ipc-consolidate-sem_exit_ns-msg_exit_ns-and-shm_exit_ns.patch
sys_setpgid-simplify-pid-ns-interaction.patch
fix-setsid-for-sub-namespace-sbin-init.patch
teach-set_special_pids-to-use-struct-pid.patch
move-daemonized-kernel-threads-into-the-swappers-session.patch
start-the-global-sbin-init-with-00-special-pids.patch
pid-sys_wait-fixes-v2.patch
pid-extend-fix-pid_vnr.patch
sys_getsid-dont-use-nsproxy-directly.patch
pid-fix-mips-irix-emulation-pid-usage.patch
pid-fix-mips-irix-emulation-pid-usage-fix.patch
pid-fix-solaris_procids.patch
uglify-kill_pid_info-to-fix-kill-vs-exec-race.patch
uglify-while_each_pid_task-to-make-sure-we-dont-count-the-execing-pricess-twice.patch
itimer_real-convert-to-use-struct-pid.patch
pidns-make-full-use-of-xxx_vnr-calls.patch
pidns-fix-badly-converted-mqueues-pid-handling.patch
clean-up-the-kill_something_info.patch
get-rid-of-the-kill_pgrp_info-function.patch
use-find_task_by_vpid-in-posix-timers.patch
use-find_task_by_vpid-in-taskstats.patch
dont-operate-with-pid_t-in-rtmutex-tester.patch
deprecate-find_task_by_pid.patch
reiser4.patch
-
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