diff options
| author | attilio <attilio@FreeBSD.org> | 2009-02-05 15:03:35 +0000 |
|---|---|---|
| committer | attilio <attilio@FreeBSD.org> | 2009-02-05 15:03:35 +0000 |
| commit | beddfe59b032db4229498b2f018c8d86779f5536 (patch) | |
| tree | 4277c54fab730182787561f09af4ab3cec231f96 /sys/kern/vfs_mount.c | |
| parent | 3e0f2e8d7e08942b9442712121698c9c59506563 (diff) | |
| download | FreeBSD-src-beddfe59b032db4229498b2f018c8d86779f5536.zip FreeBSD-src-beddfe59b032db4229498b2f018c8d86779f5536.tar.gz | |
Add more KTR_VFS logging point in order to have a more effective tracing.
Reviewed by: brueffer, kib
Tested by: Gianni Trematerra <giovanni D trematerra A gmail D com>
Diffstat (limited to 'sys/kern/vfs_mount.c')
| -rw-r--r-- | sys/kern/vfs_mount.c | 16 |
1 files changed, 14 insertions, 2 deletions
diff --git a/sys/kern/vfs_mount.c b/sys/kern/vfs_mount.c index 2b870f0..1f767a3 100644 --- a/sys/kern/vfs_mount.c +++ b/sys/kern/vfs_mount.c @@ -386,6 +386,8 @@ nmount(td, uap) u_int iovcnt; AUDIT_ARG(fflags, uap->flags); + CTR4(KTR_VFS, "%s: iovp %p with iovcnt %d and flags %d", __func__, + uap->iovp, uap->iovcnt, uap->flags); /* * Filter out MNT_ROOTFS. We do not want clients of nmount() in @@ -400,16 +402,24 @@ nmount(td, uap) * Check that we have an even number of iovec's * and that we have at least two options. */ - if ((iovcnt & 1) || (iovcnt < 4)) + if ((iovcnt & 1) || (iovcnt < 4)) { + CTR2(KTR_VFS, "%s: failed for invalid iovcnt %d", __func__, + uap->iovcnt); return (EINVAL); + } error = copyinuio(uap->iovp, iovcnt, &auio); - if (error) + if (error) { + CTR2(KTR_VFS, "%s: failed for invalid uio op with %d errno", + __func__, error); return (error); + } iov = auio->uio_iov; for (i = 0; i < iovcnt; i++) { if (iov->iov_len > MMAXOPTIONLEN) { free(auio, M_IOV); + CTR1(KTR_VFS, "%s: failed for invalid new auio", + __func__); return (EINVAL); } iov++; @@ -429,6 +439,7 @@ void vfs_ref(struct mount *mp) { + CTR2(KTR_VFS, "%s: mp %p", __func__, mp); MNT_ILOCK(mp); MNT_REF(mp); MNT_IUNLOCK(mp); @@ -438,6 +449,7 @@ void vfs_rel(struct mount *mp) { + CTR2(KTR_VFS, "%s: mp %p", __func__, mp); MNT_ILOCK(mp); MNT_REL(mp); MNT_IUNLOCK(mp); |
