Date: Sat, 24 Sep 2022 16:42:32 GMT From: Konstantin Belousov <kib@FreeBSD.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-main@FreeBSD.org Subject: git: 2ac083f60f8c - main - Add vn_rlimit_trunc() Message-ID: <202209241642.28OGgWOs058029@gitrepo.freebsd.org>
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The branch main has been updated by kib: URL: https://cgit.FreeBSD.org/src/commit/?id=2ac083f60f8c9ce361c3daf691c60486459d87ae commit 2ac083f60f8c9ce361c3daf691c60486459d87ae Author: Konstantin Belousov <kib@FreeBSD.org> AuthorDate: 2022-09-18 19:52:13 +0000 Commit: Konstantin Belousov <kib@FreeBSD.org> CommitDate: 2022-09-24 16:41:18 +0000 Add vn_rlimit_trunc() Reviewed by: asomers, jah, markj Tested by: pho Sponsored by: The FreeBSD Foundation MFC after: 2 weeks Differential revision: https://reviews.freebsd.org/D36625 --- sys/kern/vfs_vnops.c | 24 +++++++++++++++++++----- sys/sys/vnode.h | 1 + 2 files changed, 20 insertions(+), 5 deletions(-) diff --git a/sys/kern/vfs_vnops.c b/sys/kern/vfs_vnops.c index 1d2c4f332473..6eef39a37f25 100644 --- a/sys/kern/vfs_vnops.c +++ b/sys/kern/vfs_vnops.c @@ -2372,6 +2372,23 @@ vn_vget_ino_gen(struct vnode *vp, vn_get_ino_t alloc, void *alloc_arg, return (error); } +static void +vn_send_sigxfsz(struct proc *p) +{ + PROC_LOCK(p); + kern_psignal(p, SIGXFSZ); + PROC_UNLOCK(p); +} + +int +vn_rlimit_trunc(u_quad_t size, struct thread *td) +{ + if (size <= lim_cur(td, RLIMIT_FSIZE)) + return (0); + vn_send_sigxfsz(td->td_proc); + return (EFBIG); +} + int vn_rlimit_fsize(const struct vnode *vp, const struct uio *uio, struct thread *td) @@ -2400,11 +2417,8 @@ vn_rlimit_fsize(const struct vnode *vp, const struct uio *uio, (td->td_pflags2 & TDP2_ACCT) != 0) return (0); - if (!ktr_write || ktr_filesize_limit_signal) { - PROC_LOCK(td->td_proc); - kern_psignal(td->td_proc, SIGXFSZ); - PROC_UNLOCK(td->td_proc); - } + if (!ktr_write || ktr_filesize_limit_signal) + vn_send_sigxfsz(td->td_proc); return (EFBIG); } diff --git a/sys/sys/vnode.h b/sys/sys/vnode.h index f3170d77e6d4..da17170cbb2d 100644 --- a/sys/sys/vnode.h +++ b/sys/sys/vnode.h @@ -786,6 +786,7 @@ int vn_rdwr_inchunks(enum uio_rw rw, struct vnode *vp, void *base, int vn_read_from_obj(struct vnode *vp, struct uio *uio); int vn_rlimit_fsize(const struct vnode *vp, const struct uio *uio, struct thread *td); +int vn_rlimit_trunc(u_quad_t size, struct thread *td); int vn_start_write(struct vnode *vp, struct mount **mpp, int flags); int vn_start_secondary_write(struct vnode *vp, struct mount **mpp, int flags);
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