Date: Sat, 28 Jan 2023 10:20:47 GMT From: Dmitry Chagin <dchagin@FreeBSD.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-main@FreeBSD.org Subject: git: 9922bccbc9c4 - main - linux(4): Convert mount exported flags for statfs system calls. Message-ID: <202301281020.30SAKlJb004518@gitrepo.freebsd.org>
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The branch main has been updated by dchagin: URL: https://cgit.FreeBSD.org/src/commit/?id=9922bccbc9c4effb02b99391088d0405f9c0f75e commit 9922bccbc9c4effb02b99391088d0405f9c0f75e Author: Dmitry Chagin <dchagin@FreeBSD.org> AuthorDate: 2023-01-28 10:20:27 +0000 Commit: Dmitry Chagin <dchagin@FreeBSD.org> CommitDate: 2023-01-28 10:20:27 +0000 linux(4): Convert mount exported flags for statfs system calls. MFC after: 1 week --- sys/compat/linux/linux.h | 15 +++++++++++++++ sys/compat/linux/linux_stats.c | 25 +++++++++++++++++++++++-- 2 files changed, 38 insertions(+), 2 deletions(-) diff --git a/sys/compat/linux/linux.h b/sys/compat/linux/linux.h index 6400de4cb228..40e563014fde 100644 --- a/sys/compat/linux/linux.h +++ b/sys/compat/linux/linux.h @@ -264,6 +264,21 @@ struct l_statx { uint64_t __spare2[13]; }; +/* + * statfs f_flags + */ +#define LINUX_ST_RDONLY 0x0001 +#define LINUX_ST_NOSUID 0x0002 +#define LINUX_ST_NODEV 0x0004 /* No native analogue */ +#define LINUX_ST_NOEXEC 0x0008 +#define LINUX_ST_SYNCHRONOUS 0x0010 +#define LINUX_ST_VALID 0x0020 +#define LINUX_ST_MANDLOCK 0x0040 /* No native analogue */ +#define LINUX_ST_NOATIME 0x0400 +#define LINUX_ST_NODIRATIME 0x0800 /* No native analogue */ +#define LINUX_ST_RELATIME 0x1000 /* No native analogue */ +#define LINUX_ST_NOSYMFOLLOW 0x2000 + #define lower_32_bits(n) ((uint32_t)((n) & 0xffffffff)) #ifdef KTRACE diff --git a/sys/compat/linux/linux_stats.c b/sys/compat/linux/linux_stats.c index 63a5c37e1acf..a1cc2bb7bf8b 100644 --- a/sys/compat/linux/linux_stats.c +++ b/sys/compat/linux/linux_stats.c @@ -410,6 +410,27 @@ bsd_to_linux_ftype(const char *fstypename) return (0L); } +static int +bsd_to_linux_mnt_flags(int f_flags) +{ + int flags = LINUX_ST_VALID; + + if (f_flags & MNT_RDONLY) + flags |= LINUX_ST_RDONLY; + if (f_flags & MNT_NOEXEC) + flags |= LINUX_ST_NOEXEC; + if (f_flags & MNT_NOSUID) + flags |= LINUX_ST_NOSUID; + if (f_flags & MNT_NOATIME) + flags |= LINUX_ST_NOATIME; + if (f_flags & MNT_NOSYMFOLLOW) + flags |= LINUX_ST_NOSYMFOLLOW; + if (f_flags & MNT_SYNCHRONOUS) + flags |= LINUX_ST_SYNCHRONOUS; + + return (flags); +} + static int bsd_to_linux_statfs(struct statfs *bsd_statfs, struct l_statfs *linux_statfs) { @@ -433,7 +454,7 @@ bsd_to_linux_statfs(struct statfs *bsd_statfs, struct l_statfs *linux_statfs) linux_statfs->f_fsid.val[1] = bsd_statfs->f_fsid.val[1]; linux_statfs->f_namelen = MAXNAMLEN; linux_statfs->f_frsize = bsd_statfs->f_bsize; - linux_statfs->f_flags = 0; + linux_statfs->f_flags = bsd_to_linux_mnt_flags(bsd_statfs->f_flags); memset(linux_statfs->f_spare, 0, sizeof(linux_statfs->f_spare)); return (0); @@ -480,7 +501,7 @@ bsd_to_linux_statfs64(struct statfs *bsd_statfs, struct l_statfs64 *linux_statfs linux_statfs->f_fsid.val[1] = bsd_statfs->f_fsid.val[1]; linux_statfs->f_namelen = MAXNAMLEN; linux_statfs->f_frsize = bsd_statfs->f_bsize; - linux_statfs->f_flags = 0; + linux_statfs->f_flags = bsd_to_linux_mnt_flags(bsd_statfs->f_flags); memset(linux_statfs->f_spare, 0, sizeof(linux_statfs->f_spare)); }
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