diff options
| author | Fabien Thomas <fabient@FreeBSD.org> | 2010-01-10 16:43:45 +0000 |
|---|---|---|
| committer | Fabien Thomas <fabient@FreeBSD.org> | 2010-01-10 16:43:45 +0000 |
| commit | 592e45e0478e67027d9d7e8d222593493c20a88d (patch) | |
| tree | a05365551e2a84c5dd665d5579d790f020de5700 /sys/dev/hwpmc | |
| parent | d507f8264c6b3c310d16498c144e5b34f3fdbb87 (diff) | |
Notes
Diffstat (limited to 'sys/dev/hwpmc')
| -rw-r--r-- | sys/dev/hwpmc/hwpmc_mod.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/sys/dev/hwpmc/hwpmc_mod.c b/sys/dev/hwpmc/hwpmc_mod.c index dbc20d435f72..3a59f17714f3 100644 --- a/sys/dev/hwpmc/hwpmc_mod.c +++ b/sys/dev/hwpmc/hwpmc_mod.c @@ -41,6 +41,7 @@ __FBSDID("$FreeBSD$"); #include <sys/lock.h> #include <sys/malloc.h> #include <sys/module.h> +#include <sys/mount.h> #include <sys/mutex.h> #include <sys/pmc.h> #include <sys/pmckern.h> @@ -1628,6 +1629,7 @@ pmc_log_kernel_mappings(struct pmc *pm) static void pmc_log_process_mappings(struct pmc_owner *po, struct proc *p) { + int locked; vm_map_t map; struct vnode *vp; struct vmspace *vm; @@ -1736,7 +1738,11 @@ pmc_log_process_mappings(struct pmc_owner *po, struct proc *p) freepath = NULL; pmc_getfilename(vp, &fullpath, &freepath); last_vp = vp; + + locked = VFS_LOCK_GIANT(vp->v_mount); vrele(vp); + VFS_UNLOCK_GIANT(locked); + vp = NULL; pmclog_process_map_in(po, p->p_pid, start_addr, fullpath); if (freepath) |