Checkpoint/restart of file-owner.
Add uid, euid parameters to f_modown(). These parameters will be needed
when restarting an application (and hence restoring the file information),
from a checkpoint image.
Signed-off-by: Sukadev Bhattiprolu <sukadev@xxxxxxxxxxxxxxxxxx>
---
fs/fcntl.c | 11 +++++------
1 files changed, 5 insertions(+), 6 deletions(-)
diff --git a/fs/fcntl.c b/fs/fcntl.c
index 2079af0..aeab1f4 100644
--- a/fs/fcntl.c
+++ b/fs/fcntl.c
@@ -197,7 +197,7 @@ static int setfl(int fd, struct file * filp, unsigned long arg)
}
static void f_modown(struct file *filp, struct pid *pid, enum pid_type type,
- int force)
+ uid_t uid, uid_t euid, int force)
{
write_lock_irq(&filp->f_owner.lock);
if (force || !filp->f_owner.pid) {
@@ -206,9 +206,8 @@ static void f_modown(struct file *filp, struct pid *pid, enum pid_type type,
filp->f_owner.pid_type = type;
if (pid) {
- const struct cred *cred = current_cred();
- filp->f_owner.uid = cred->uid;
- filp->f_owner.euid = cred->euid;
+ filp->f_owner.uid = uid;
+ filp->f_owner.euid = euid;
}
}
write_unlock_irq(&filp->f_owner.lock);
@@ -223,7 +222,7 @@ int __f_setown(struct file *filp, struct pid *pid, enum pid_type type,
if (err)
return err;
- f_modown(filp, pid, type, force);
+ f_modown(filp, pid, type, current_uid(), current_euid(), force);
return 0;
}
EXPORT_SYMBOL(__f_setown);
@@ -249,7 +248,7 @@ EXPORT_SYMBOL(f_setown);
void f_delown(struct file *filp)
{
- f_modown(filp, NULL, PIDTYPE_PID, 1);
+ f_modown(filp, NULL, PIDTYPE_PID, current_uid(), current_euid(), 1);
}
pid_t f_getown(struct file *filp)
--
1.6.0.4
--
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