Messages in this thread Patch in this message | | | From | "Matthew Wilcox (Oracle)" <> | Subject | [PATCH v5 26/32] x86/resctrl: Convert to printbuf | Date | Mon, 8 Aug 2022 03:41:22 +0100 |
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From: Kent Overstreet <kent.overstreet@gmail.com>
This converts from seq_buf to printbuf. We're using printbuf in external buffer mode, so it's a direct conversion, aside from some trivial refactoring in cpu_show_meltdown() to make the code more consistent.
Signed-off-by: Kent Overstreet <kent.overstreet@gmail.com> Cc: x86@kernel.org --- arch/x86/kernel/cpu/resctrl/rdtgroup.c | 16 ++++++++-------- 1 file changed, 8 insertions(+), 8 deletions(-)
diff --git a/arch/x86/kernel/cpu/resctrl/rdtgroup.c b/arch/x86/kernel/cpu/resctrl/rdtgroup.c index f276aff521e8..50c12711a249 100644 --- a/arch/x86/kernel/cpu/resctrl/rdtgroup.c +++ b/arch/x86/kernel/cpu/resctrl/rdtgroup.c @@ -19,7 +19,7 @@ #include <linux/fs_parser.h> #include <linux/sysfs.h> #include <linux/kernfs.h> -#include <linux/seq_buf.h> +#include <linux/printbuf.h> #include <linux/seq_file.h> #include <linux/sched/signal.h> #include <linux/sched/task.h> @@ -51,7 +51,7 @@ static struct kernfs_node *kn_mongrp; /* Kernel fs node for "mon_data" directory under root */ static struct kernfs_node *kn_mondata; -static struct seq_buf last_cmd_status; +static struct printbuf last_cmd_status; static char last_cmd_status_buf[512]; struct dentry *debugfs_resctrl; @@ -59,13 +59,13 @@ struct dentry *debugfs_resctrl; void rdt_last_cmd_clear(void) { lockdep_assert_held(&rdtgroup_mutex); - seq_buf_clear(&last_cmd_status); + printbuf_reset(&last_cmd_status); } void rdt_last_cmd_puts(const char *s) { lockdep_assert_held(&rdtgroup_mutex); - seq_buf_puts(&last_cmd_status, s); + prt_str(&last_cmd_status, s); } void rdt_last_cmd_printf(const char *fmt, ...) @@ -74,7 +74,7 @@ void rdt_last_cmd_printf(const char *fmt, ...) va_start(ap, fmt); lockdep_assert_held(&rdtgroup_mutex); - seq_buf_vprintf(&last_cmd_status, fmt, ap); + prt_vprintf(&last_cmd_status, fmt, ap); va_end(ap); } @@ -833,7 +833,7 @@ static int rdt_last_cmd_status_show(struct kernfs_open_file *of, int len; mutex_lock(&rdtgroup_mutex); - len = seq_buf_used(&last_cmd_status); + len = printbuf_written(&last_cmd_status); if (len) seq_printf(seq, "%.*s", len, last_cmd_status_buf); else @@ -3248,8 +3248,8 @@ int __init rdtgroup_init(void) { int ret = 0; - seq_buf_init(&last_cmd_status, last_cmd_status_buf, - sizeof(last_cmd_status_buf)); + last_cmd_status = PRINTBUF_EXTERN(last_cmd_status_buf, + sizeof(last_cmd_status_buf)); ret = rdtgroup_setup_root(); if (ret) -- 2.35.1
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