From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:45076) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1enUDs-0002hE-4S for qemu-devel@nongnu.org; Sun, 18 Feb 2018 14:02:05 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1enUDV-0001iq-TD for qemu-devel@nongnu.org; Sun, 18 Feb 2018 14:02:04 -0500 Received: from smtprelay0113.hostedemail.com ([216.40.44.113]:43112 helo=smtprelay.hostedemail.com) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1enUDV-0001iE-K3 for qemu-devel@nongnu.org; Sun, 18 Feb 2018 14:01:41 -0500 From: Shea Levy Date: Sun, 18 Feb 2018 14:00:50 -0500 Message-Id: <20180218190050.19517-1-shea@shealevy.com> Subject: [Qemu-devel] [PATCH] linux-user: Support f_flags in statfs when available. List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: Shea Levy Signed-off-by: Shea Levy --- configure | 20 +++++++++++++++++ linux-user/syscall.c | 3 +++ linux-user/syscall_defs.h | 56 +++++++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 79 insertions(+) diff --git a/configure b/configure index 913e14839d..52fe2bf941 100755 --- a/configure +++ b/configure @@ -5303,6 +5303,22 @@ if compile_prog "" "" ; then have_utmpx=yes fi +########################################## +# Check for newer fields of struct statfs on Linux + +if test "$linux_user" = "yes"; then + cat > $TMPC < + +int main(void) { + struct statfs fs; + fs.f_flags = 0; +} +EOF + if compile_object ; then + have_statfs_flags=yes + fi +fi ########################################## # checks for sanitizers @@ -6518,6 +6534,10 @@ if test "$have_utmpx" = "yes" ; then echo "HAVE_UTMPX=y" >> $config_host_mak fi +if test "$have_statfs_flags" = "yes" ; then + echo "HAVE_STATFS_FLAGS=y" >> $config_host_mak +fi + if test "$ivshmem" = "yes" ; then echo "CONFIG_IVSHMEM=y" >> $config_host_mak fi diff --git a/linux-user/syscall.c b/linux-user/syscall.c index 82b35a6bdf..77481eca2c 100644 --- a/linux-user/syscall.c +++ b/linux-user/syscall.c @@ -9534,6 +9534,9 @@ abi_long do_syscall(void *cpu_env, int num, abi_long arg1, __put_user(stfs.f_fsid.__val[1], &target_stfs->f_fsid.val[1]); __put_user(stfs.f_namelen, &target_stfs->f_namelen); __put_user(stfs.f_frsize, &target_stfs->f_frsize); +#ifdef HAVE_STATFS_FLAGS + __put_user(stfs.f_flags, &target_stfs->f_flags); +#endif memset(target_stfs->f_spare, 0, sizeof(target_stfs->f_spare)); unlock_user_struct(target_stfs, arg2, 1); } diff --git a/linux-user/syscall_defs.h b/linux-user/syscall_defs.h index a35c52a60a..9f90451caf 100644 --- a/linux-user/syscall_defs.h +++ b/linux-user/syscall_defs.h @@ -362,7 +362,14 @@ struct kernel_statfs { int f_ffree; kernel_fsid_t f_fsid; int f_namelen; +#ifdef HAVE_STATFS_FLAGS + int f_frsize; + int f_flags; + int f_spare[4]; +#else int f_spare[6]; +#endif + }; struct target_dirent { @@ -2223,7 +2230,13 @@ struct target_statfs { /* Linux specials */ target_fsid_t f_fsid; int32_t f_namelen; +#ifdef HAVE_STATFS_FLAGS + int32_t f_frsize; + int32_t f_flags; + int32_t f_spare[4]; +#else int32_t f_spare[6]; +#endif }; #else struct target_statfs { @@ -2239,7 +2252,13 @@ struct target_statfs { /* Linux specials */ target_fsid_t f_fsid; abi_long f_namelen; +#ifdef HAVE_STATFS_FLAGS + abi_long f_frsize; + abi_long f_flags; + abi_long f_spare[4]; +#else abi_long f_spare[6]; +#endif }; #endif @@ -2255,7 +2274,13 @@ struct target_statfs64 { uint64_t f_bavail; target_fsid_t f_fsid; uint32_t f_namelen; +#ifdef HAVE_STATFS_FLAGS + uint32_t f_frsize; + uint32_t f_flags; + uint32_t f_spare[4]; +#else uint32_t f_spare[6]; +#endif }; #elif (defined(TARGET_PPC64) || defined(TARGET_X86_64) || \ defined(TARGET_SPARC64) || defined(TARGET_AARCH64)) && \ @@ -2271,7 +2296,12 @@ struct target_statfs { target_fsid_t f_fsid; abi_long f_namelen; abi_long f_frsize; +#ifdef HAVE_STATFS_FLAGS + abi_long f_flags; + abi_long f_spare[4]; +#else abi_long f_spare[5]; +#endif }; struct target_statfs64 { @@ -2285,7 +2315,12 @@ struct target_statfs64 { target_fsid_t f_fsid; abi_long f_namelen; abi_long f_frsize; +#ifdef HAVE_STATFS_FLAGS + abi_long f_flags; + abi_long f_spare[4]; +#else abi_long f_spare[5]; +#endif }; #elif defined(TARGET_S390X) struct target_statfs { @@ -2299,7 +2334,13 @@ struct target_statfs { kernel_fsid_t f_fsid; int32_t f_namelen; int32_t f_frsize; +#ifdef HAVE_STATFS_FLAGS + int32_t f_flags; + int32_t f_spare[4]; +#else int32_t f_spare[5]; +#endif + }; struct target_statfs64 { @@ -2313,7 +2354,12 @@ struct target_statfs64 { kernel_fsid_t f_fsid; int32_t f_namelen; int32_t f_frsize; +#ifdef HAVE_STATFS_FLAGS + int32_t f_flags; + int32_t f_spare[4]; +#else int32_t f_spare[5]; +#endif }; #else struct target_statfs { @@ -2327,7 +2373,12 @@ struct target_statfs { target_fsid_t f_fsid; uint32_t f_namelen; uint32_t f_frsize; +#ifdef HAVE_STATFS_FLAGS + uint32_t f_flags; + uint32_t f_spare[4]; +#else uint32_t f_spare[5]; +#endif }; struct target_statfs64 { @@ -2341,7 +2392,12 @@ struct target_statfs64 { target_fsid_t f_fsid; uint32_t f_namelen; uint32_t f_frsize; +#ifdef HAVE_STATFS_FLAGS + uint32_t f_flags; + uint32_t f_spare[4]; +#else uint32_t f_spare[5]; +#endif }; #endif -- 2.16.1