Author: dchagin Date: Sun May 24 17:25:57 2015 New Revision: 283460 URL: https://svnweb.freebsd.org/changeset/base/283460
Log: Print out unsupported futex operation message only once for the process. Differential Revision: https://reviews.freebsd.org/D1498 Modified: head/sys/compat/linux/linux_emul.h head/sys/compat/linux/linux_futex.c Modified: head/sys/compat/linux/linux_emul.h ============================================================================== --- head/sys/compat/linux/linux_emul.h Sun May 24 17:23:08 2015 (r283459) +++ head/sys/compat/linux/linux_emul.h Sun May 24 17:25:57 2015 (r283460) @@ -61,6 +61,7 @@ int linux_common_execve(struct thread *, #define LINUX_XDEPR_REQUEUEOP 0x00000001 /* uses deprecated futex REQUEUE op*/ #define LINUX_XUNSUP_EPOLL 0x00000002 /* unsupported epoll events */ +#define LINUX_XUNSUP_FUTEXPIOP 0x00000004 /* uses unsupported pi futex */ struct linux_pemuldata { uint32_t flags; /* process emuldata flags */ Modified: head/sys/compat/linux/linux_futex.c ============================================================================== --- head/sys/compat/linux/linux_futex.c Sun May 24 17:23:08 2015 (r283459) +++ head/sys/compat/linux/linux_futex.c Sun May 24 17:25:57 2015 (r283460) @@ -936,29 +936,43 @@ linux_sys_futex(struct thread *td, struc case LINUX_FUTEX_LOCK_PI: /* not yet implemented */ - linux_msg(td, - "linux_sys_futex: " - "op LINUX_FUTEX_LOCK_PI not implemented\n"); - LIN_SDT_PROBE0(futex, linux_sys_futex, unimplemented_lock_pi); + pem = pem_find(td->td_proc); + if ((pem->flags & LINUX_XUNSUP_FUTEXPIOP) == 0) { + linux_msg(td, + "linux_sys_futex: " + "unsupported futex_pi op\n"); + pem->flags |= LINUX_XUNSUP_FUTEXPIOP; + LIN_SDT_PROBE0(futex, linux_sys_futex, + unimplemented_lock_pi); + } LIN_SDT_PROBE1(futex, linux_sys_futex, return, ENOSYS); return (ENOSYS); case LINUX_FUTEX_UNLOCK_PI: /* not yet implemented */ - linux_msg(td, - "linux_sys_futex: " - "op LINUX_FUTEX_UNLOCK_PI not implemented\n"); - LIN_SDT_PROBE0(futex, linux_sys_futex, unimplemented_unlock_pi); + pem = pem_find(td->td_proc); + if ((pem->flags & LINUX_XUNSUP_FUTEXPIOP) == 0) { + linux_msg(td, + "linux_sys_futex: " + "unsupported futex_pi op\n"); + pem->flags |= LINUX_XUNSUP_FUTEXPIOP; + LIN_SDT_PROBE0(futex, linux_sys_futex, + unimplemented_unlock_pi); + } LIN_SDT_PROBE1(futex, linux_sys_futex, return, ENOSYS); return (ENOSYS); case LINUX_FUTEX_TRYLOCK_PI: /* not yet implemented */ - linux_msg(td, - "linux_sys_futex: " - "op LINUX_FUTEX_TRYLOCK_PI not implemented\n"); - LIN_SDT_PROBE0(futex, linux_sys_futex, - unimplemented_trylock_pi); + pem = pem_find(td->td_proc); + if ((pem->flags & LINUX_XUNSUP_FUTEXPIOP) == 0) { + linux_msg(td, + "linux_sys_futex: " + "unsupported futex_pi op\n"); + pem->flags |= LINUX_XUNSUP_FUTEXPIOP; + LIN_SDT_PROBE0(futex, linux_sys_futex, + unimplemented_trylock_pi); + } LIN_SDT_PROBE1(futex, linux_sys_futex, return, ENOSYS); return (ENOSYS); @@ -985,21 +999,29 @@ linux_sys_futex(struct thread *td, struc case LINUX_FUTEX_WAIT_REQUEUE_PI: /* not yet implemented */ - linux_msg(td, - "linux_sys_futex: " - "op FUTEX_WAIT_REQUEUE_PI not implemented\n"); - LIN_SDT_PROBE0(futex, linux_sys_futex, - unimplemented_wait_requeue_pi); + pem = pem_find(td->td_proc); + if ((pem->flags & LINUX_XUNSUP_FUTEXPIOP) == 0) { + linux_msg(td, + "linux_sys_futex: " + "unsupported futex_pi op\n"); + pem->flags |= LINUX_XUNSUP_FUTEXPIOP; + LIN_SDT_PROBE0(futex, linux_sys_futex, + unimplemented_wait_requeue_pi); + } LIN_SDT_PROBE1(futex, linux_sys_futex, return, ENOSYS); return (ENOSYS); case LINUX_FUTEX_CMP_REQUEUE_PI: /* not yet implemented */ - linux_msg(td, - "linux_sys_futex: " - "op LINUX_FUTEX_CMP_REQUEUE_PI not implemented\n"); - LIN_SDT_PROBE0(futex, linux_sys_futex, - unimplemented_cmp_requeue_pi); + pem = pem_find(td->td_proc); + if ((pem->flags & LINUX_XUNSUP_FUTEXPIOP) == 0) { + linux_msg(td, + "linux_sys_futex: " + "unsupported futex_pi op\n"); + pem->flags |= LINUX_XUNSUP_FUTEXPIOP; + LIN_SDT_PROBE0(futex, linux_sys_futex, + unimplemented_cmp_requeue_pi); + } LIN_SDT_PROBE1(futex, linux_sys_futex, return, ENOSYS); return (ENOSYS); _______________________________________________ svn-src-head@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/svn-src-head To unsubscribe, send any mail to "svn-src-head-unsubscr...@freebsd.org"
