diff options
| author | Edward Tomasz Napierala <trasz@FreeBSD.org> | 2020-10-20 17:19:10 +0000 |
|---|---|---|
| committer | Edward Tomasz Napierala <trasz@FreeBSD.org> | 2020-10-20 17:19:10 +0000 |
| commit | 1a34e9fad6b6d894eb81002bd966684be1d1fe86 (patch) | |
| tree | d8b18b71227f510e9457f9c3e35427c3e49c51f6 /sys/compat/linux/linux_util.c | |
| parent | bc3d5698008e9b3b19495e853cbc2598979ccf8a (diff) | |
Fix potential race condition in linux stat(2).
Reviewed by: kib
MFC after: 2 weeks
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D25618
Notes
Notes:
svn path=/head/; revision=366899
Diffstat (limited to 'sys/compat/linux/linux_util.c')
| -rw-r--r-- | sys/compat/linux/linux_util.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/sys/compat/linux/linux_util.c b/sys/compat/linux/linux_util.c index 59fc844e1cbe..5febafef08c7 100644 --- a/sys/compat/linux/linux_util.c +++ b/sys/compat/linux/linux_util.c @@ -36,6 +36,7 @@ __FBSDID("$FreeBSD$"); #include <sys/param.h> #include <sys/bus.h> +#include <sys/conf.h> #include <sys/fcntl.h> #include <sys/lock.h> #include <sys/malloc.h> @@ -195,6 +196,24 @@ linux_driver_get_major_minor(const char *node, int *major, int *minor) return (1); } +int +linux_vn_get_major_minor(const struct vnode *vp, int *major, int *minor) +{ + int error; + + if (vp->v_type != VCHR) + return (ENOTBLK); + dev_lock(); + if (vp->v_rdev == NULL) { + dev_unlock(); + return (ENXIO); + } + error = linux_driver_get_major_minor(devtoname(vp->v_rdev), + major, minor); + dev_unlock(); + return (error); +} + char * linux_get_char_devices() { |