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diff --git a/share/man/man5/tarfs.5 b/share/man/man5/tarfs.5
--- a/share/man/man5/tarfs.5
+++ b/share/man/man5/tarfs.5
@@ -24,7 +24,7 @@
.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
.\" SUCH DAMAGE.
.\"
-.Dd February 2, 2023
+.Dd February 14, 2023
.Dt TARFS 5
.Os
.Sh NAME
@@ -81,6 +81,7 @@
.It 0x40 Ta Decompression
.It 0x80 Ta Decompression index
.It 0x100 Ta Sparse file mapping
+.It 0x200 Ta Bounce buffer usage
.El
.Sh SEE ALSO
.Xr tar 1 ,
diff --git a/sys/fs/tarfs/tarfs_dbg.h b/sys/fs/tarfs/tarfs_dbg.h
--- a/sys/fs/tarfs/tarfs_dbg.h
+++ b/sys/fs/tarfs/tarfs_dbg.h
@@ -45,6 +45,7 @@
#define TARFS_DEBUG_ZIO 0x40
#define TARFS_DEBUG_ZIDX 0x80
#define TARFS_DEBUG_MAP 0x100
+#define TARFS_DEBUG_BOUNCE 0x200
#define TARFS_DPF(category, fmt, ...) \
do { \
diff --git a/sys/fs/tarfs/tarfs_io.c b/sys/fs/tarfs/tarfs_io.c
--- a/sys/fs/tarfs/tarfs_io.c
+++ b/sys/fs/tarfs/tarfs_io.c
@@ -391,7 +391,7 @@
if (uiop->uio_segflg == UIO_SYSSPACE) {
zob.dst = uiop->uio_iov->iov_base;
} else {
- TARFS_DPF(ALLOC, "%s: allocating %zu-byte bounce buffer\n",
+ TARFS_DPF(BOUNCE, "%s: allocating %zu-byte bounce buffer\n",
__func__, len);
zob.dst = obuf = malloc(len, M_TEMP, M_WAITOK);
}
@@ -488,7 +488,7 @@
if (uiop->uio_segflg == UIO_SYSSPACE) {
uiop->uio_resid = resid;
} else if (len > resid) {
- TARFS_DPF(ALLOC, "%s: bounced %zu bytes\n", __func__,
+ TARFS_DPF(BOUNCE, "%s: bounced %zu bytes\n", __func__,
len - resid);
error = uiomove(obuf, len - resid, uiop);
#ifdef TARFS_DEBUG
@@ -497,7 +497,7 @@
}
}
if (obuf != NULL) {
- TARFS_DPF(ALLOC, "%s: freeing bounce buffer\n", __func__);
+ TARFS_DPF(BOUNCE, "%s: freeing bounce buffer\n", __func__);
free(obuf, M_TEMP);
}
if (rl != NULL)

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