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Kernel+Userland: Split bind-mounting and re-mounting from mount syscall

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These 2 are an actual separate types of syscalls, so let's stop using
special flags for bind mounting or re-mounting and instead let userspace
calling directly for this kind of actions.
This commit is contained in:
Liav A 2023-02-25 19:30:28 +02:00 • committed by Andrew Kaster
parent 04b44a827a
commit 0bbd9040ef
10 changed files with 204 additions and 42 deletions
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13
Kernel/API/Syscall.h
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@ -53,6 +53,7 @@ enum class NeedsBigProcessLock {
S(annotate_mapping, NeedsBigProcessLock::No) \
S(beep, NeedsBigProcessLock::No) \
S(bind, NeedsBigProcessLock::No) \
S(bindmount, NeedsBigProcessLock::No) \
S(chdir, NeedsBigProcessLock::No) \
S(chmod, NeedsBigProcessLock::No) \
S(chown, NeedsBigProcessLock::No) \
@ -153,6 +154,7 @@ enum class NeedsBigProcessLock {
S(recvfd, NeedsBigProcessLock::No) \
S(recvmsg, NeedsBigProcessLock::Yes) \
S(rename, NeedsBigProcessLock::No) \
S(remount, NeedsBigProcessLock::No) \
S(rmdir, NeedsBigProcessLock::No) \
S(scheduler_get_parameters, NeedsBigProcessLock::No) \
S(scheduler_set_parameters, NeedsBigProcessLock::No) \
@ -437,6 +439,17 @@ struct SC_mount_params {
int flags;
};
struct SC_remount_params {
StringArgument target;
int flags;
};
struct SC_bindmount_params {
StringArgument target;
int source_fd;
int flags;
};
struct SC_pledge_params {
StringArgument promises;
StringArgument execpromises;