git: 9e4f35ac2553 - main - vfs: deperl msleep flag calculation in vn_start_*write
Date: Sat, 17 Sep 2022 15:42:38 UTC
The branch main has been updated by mjg:
URL: https://cgit.FreeBSD.org/src/commit/?id=9e4f35ac25538fb426c459400f0c36e085546ffa
commit 9e4f35ac25538fb426c459400f0c36e085546ffa
Author: Mateusz Guzik <mjg@FreeBSD.org>
AuthorDate: 2022-09-17 15:17:20 +0000
Commit: Mateusz Guzik <mjg@FreeBSD.org>
CommitDate: 2022-09-17 15:17:20 +0000
vfs: deperl msleep flag calculation in vn_start_*write
---
sys/kern/vfs_vnops.c | 20 ++++++++++++++------
1 file changed, 14 insertions(+), 6 deletions(-)
diff --git a/sys/kern/vfs_vnops.c b/sys/kern/vfs_vnops.c
index 2e39d8a9e4d2..a7ca547f571f 100644
--- a/sys/kern/vfs_vnops.c
+++ b/sys/kern/vfs_vnops.c
@@ -1875,8 +1875,12 @@ vn_start_write_refed(struct mount *mp, int flags, bool mplocked)
*/
if ((curthread->td_pflags & TDP_IGNSUSP) == 0 ||
mp->mnt_susp_owner != curthread) {
- mflags = ((mp->mnt_vfc->vfc_flags & VFCF_SBDRY) != 0 ?
- (flags & PCATCH) : 0) | (PUSER - 1);
+ mflags = 0;
+ if ((mp->mnt_vfc->vfc_flags & VFCF_SBDRY) != 0) {
+ if (flags & PCATCH)
+ mflags |= PCATCH;
+ }
+ mflags |= (PUSER - 1);
while ((mp->mnt_kern_flag & MNTK_SUSPEND) != 0) {
if (flags & V_NOWAIT) {
error = EWOULDBLOCK;
@@ -1944,7 +1948,7 @@ int
vn_start_secondary_write(struct vnode *vp, struct mount **mpp, int flags)
{
struct mount *mp;
- int error;
+ int error, mflags;
retry:
if (vp != NULL) {
@@ -1986,9 +1990,13 @@ vn_start_secondary_write(struct vnode *vp, struct mount **mpp, int flags)
/*
* Wait for the suspension to finish.
*/
- error = msleep(&mp->mnt_flag, MNT_MTX(mp), (PUSER - 1) | PDROP |
- ((mp->mnt_vfc->vfc_flags & VFCF_SBDRY) != 0 ? (flags & PCATCH) : 0),
- "suspfs", 0);
+ mflags = 0;
+ if ((mp->mnt_vfc->vfc_flags & VFCF_SBDRY) != 0) {
+ if (flags & PCATCH)
+ mflags |= PCATCH;
+ }
+ mflags |= (PUSER - 1) | PDROP;
+ error = msleep(&mp->mnt_flag, MNT_MTX(mp), mflags, "suspfs", 0);
vfs_rel(mp);
if (error == 0)
goto retry;