A full loop accessing all FDB entries can take several milliseconds (on RTL839x about 20 ms), so give other kernel tasks a chance to run. This is especially important for rtl83xx_port_fdb_dump which is itself called in a loop for all ports by the kernel.
Signed-off-by: Jan Hoffmann <[email protected]> --- .../linux/realtek/files-5.10/drivers/net/dsa/rtl83xx/debugfs.c | 3 +++ target/linux/realtek/files-5.10/drivers/net/dsa/rtl83xx/dsa.c | 3 +++ .../linux/realtek/files-5.15/drivers/net/dsa/rtl83xx/debugfs.c | 3 +++ target/linux/realtek/files-5.15/drivers/net/dsa/rtl83xx/dsa.c | 3 +++ 4 files changed, 12 insertions(+) diff --git a/target/linux/realtek/files-5.10/drivers/net/dsa/rtl83xx/debugfs.c b/target/linux/realtek/files-5.10/drivers/net/dsa/rtl83xx/debugfs.c index 9a7c7714c64e..3c935f629af6 100644 --- a/target/linux/realtek/files-5.10/drivers/net/dsa/rtl83xx/debugfs.c +++ b/target/linux/realtek/files-5.10/drivers/net/dsa/rtl83xx/debugfs.c @@ -343,6 +343,9 @@ static int l2_table_show(struct seq_file *m, void *v) seq_printf(m, "Hash table bucket %d index %d ", bucket, index); l2_table_print_entry(m, priv, &e); + + if (!((i + 1) % 64)) + cond_resched(); } for (i = 0; i < 64; i++) { diff --git a/target/linux/realtek/files-5.10/drivers/net/dsa/rtl83xx/dsa.c b/target/linux/realtek/files-5.10/drivers/net/dsa/rtl83xx/dsa.c index 6eea0dc93676..63461ff57348 100644 --- a/target/linux/realtek/files-5.10/drivers/net/dsa/rtl83xx/dsa.c +++ b/target/linux/realtek/files-5.10/drivers/net/dsa/rtl83xx/dsa.c @@ -1728,6 +1728,9 @@ static int rtl83xx_port_fdb_dump(struct dsa_switch *ds, int port, if (e.port == port || e.port == RTL930X_PORT_IGNORE) cb(e.mac, e.vid, e.is_static, data); + + if (!((i + 1) % 64)) + cond_resched(); } for (i = 0; i < 64; i++) { diff --git a/target/linux/realtek/files-5.15/drivers/net/dsa/rtl83xx/debugfs.c b/target/linux/realtek/files-5.15/drivers/net/dsa/rtl83xx/debugfs.c index 9a7c7714c64e..3c935f629af6 100644 --- a/target/linux/realtek/files-5.15/drivers/net/dsa/rtl83xx/debugfs.c +++ b/target/linux/realtek/files-5.15/drivers/net/dsa/rtl83xx/debugfs.c @@ -343,6 +343,9 @@ static int l2_table_show(struct seq_file *m, void *v) seq_printf(m, "Hash table bucket %d index %d ", bucket, index); l2_table_print_entry(m, priv, &e); + + if (!((i + 1) % 64)) + cond_resched(); } for (i = 0; i < 64; i++) { diff --git a/target/linux/realtek/files-5.15/drivers/net/dsa/rtl83xx/dsa.c b/target/linux/realtek/files-5.15/drivers/net/dsa/rtl83xx/dsa.c index 9281e08d33eb..3e71813112b5 100644 --- a/target/linux/realtek/files-5.15/drivers/net/dsa/rtl83xx/dsa.c +++ b/target/linux/realtek/files-5.15/drivers/net/dsa/rtl83xx/dsa.c @@ -1725,6 +1725,9 @@ static int rtl83xx_port_fdb_dump(struct dsa_switch *ds, int port, if (e.port == port || e.port == RTL930X_PORT_IGNORE) cb(e.mac, e.vid, e.is_static, data); + + if (!((i + 1) % 64)) + cond_resched(); } for (i = 0; i < 64; i++) { -- 2.38.1 _______________________________________________ openwrt-devel mailing list [email protected] https://lists.openwrt.org/mailman/listinfo/openwrt-devel
