From: Kent Overstreet <kent.overstreet@gmail.com>
To: Joe Perches <joe@perches.com>
Cc: Andrew Morton <akpm@linux-foundation.org>,
Linus Torvalds <torvalds@linux-foundation.org>,
David Laight <David.Laight@ACULAB.COM>,
Petr Mladek <pmladek@suse.com>,
Steven Rostedt <rostedt@goodmis.org>,
Sergey Senozhatsky <senozhatsky@chromium.org>,
Rasmus Villemoes <linux@rasmusvillemoes.dk>,
Matthew Wilcox <willy@infradead.org>,
Miguel Ojeda <ojeda@kernel.org>,
Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
LKML <linux-kernel@vger.kernel.org>,
linux-mm <linux-mm@kvack.org>
Subject: Re: [RFC[ Alloc in vsprintf
Date: Sun, 26 Jun 2022 16:06:18 -0400 [thread overview]
Message-ID: <20220626200618.jhxu5lg4w7o2irhr@moria.home.lan> (raw)
In-Reply-To: <355e912490dbaef8fe4e12df0201c3f5b439565d.camel@perches.com>
On Sun, Jun 26, 2022 at 12:53:26PM -0700, Joe Perches wrote:
> In a reply to the printbufs thread, I wrote a proposal to use an
> alloc to reduce stack in vsprintf when CONFIG_KALLSYMS is enabled.
>
> No one has replied to this but I think it's somewhat sensible.
>
> Thoughts?
As functions get converted to printbufs the separate stack allocated buffers
become unnecessary, because printbufs have helpers that do bounds checking and
make outputting to the vsprintf buffer painless. So it's not necessary - I
haven't fully converted symbol_string() yet but I'll do so by the time I mail
out the next round of patches.
next prev parent reply other threads:[~2022-06-26 20:06 UTC|newest]
Thread overview: 85+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-06-20 0:41 [PATCH v4 00/34] Printbufs - new data structure for building strings Kent Overstreet
2022-06-20 0:42 ` [PATCH v4 01/34] lib/printbuf: New data structure for printing strings Kent Overstreet
2022-06-20 4:44 ` David Laight
2022-06-20 15:30 ` Kent Overstreet
2022-06-20 15:53 ` David Laight
2022-06-20 16:14 ` Kent Overstreet
2022-06-20 0:42 ` [PATCH v4 02/34] lib/string_helpers: Convert string_escape_mem() to printbuf Kent Overstreet
2022-06-20 0:42 ` [PATCH v4 03/34] vsprintf: Convert " Kent Overstreet
2022-06-20 0:42 ` [PATCH v4 04/34] lib/hexdump: " Kent Overstreet
2022-06-20 0:42 ` [PATCH v4 05/34] vsprintf: %pf(%p) Kent Overstreet
2022-06-21 7:04 ` Rasmus Villemoes
2022-06-21 7:51 ` Kent Overstreet
2022-06-21 8:47 ` Rasmus Villemoes
2022-06-21 11:11 ` David Laight
2022-06-20 0:42 ` [PATCH v4 06/34] lib/string_helpers: string_get_size() now returns characters wrote Kent Overstreet
2022-06-20 0:42 ` [PATCH v4 07/34] lib/printbuf: Heap allocation Kent Overstreet
2022-06-21 7:58 ` Rasmus Villemoes
2022-06-20 0:42 ` [PATCH v4 08/34] lib/printbuf: Tabstops, indenting Kent Overstreet
2022-06-21 8:14 ` Rasmus Villemoes
2022-06-20 0:42 ` [PATCH v4 09/34] lib/printbuf: Unit specifiers Kent Overstreet
2022-06-20 0:42 ` [PATCH v4 10/34] lib/pretty-printers: prt_string_option(), prt_bitflags() Kent Overstreet
2022-06-20 0:42 ` [PATCH v4 11/34] vsprintf: Improve number() Kent Overstreet
2022-06-21 8:33 ` Rasmus Villemoes
2022-06-20 0:42 ` [PATCH v4 12/34] vsprintf: prt_u64_minwidth(), prt_u64() Kent Overstreet
2022-06-20 0:42 ` [PATCH v4 13/34] test_printf: Drop requirement that sprintf not write past nul Kent Overstreet
2022-06-21 7:19 ` Rasmus Villemoes
2022-06-21 7:52 ` Kent Overstreet
2022-06-20 0:42 ` [PATCH v4 14/34] vsprintf: Start consolidating printf_spec handling Kent Overstreet
2022-06-20 0:42 ` [PATCH v4 15/34] vsprintf: Refactor resource_string() Kent Overstreet
2022-06-20 0:42 ` [PATCH v4 16/34] vsprintf: Refactor fourcc_string() Kent Overstreet
2022-06-20 0:42 ` [PATCH v4 17/34] vsprintf: Refactor ip_addr_string() Kent Overstreet
2022-06-20 0:42 ` [PATCH v4 18/34] vsprintf: Refactor mac_address_string() Kent Overstreet
2022-06-20 0:42 ` [PATCH v4 19/34] vsprintf: time_and_date() no longer takes printf_spec Kent Overstreet
2022-06-20 0:42 ` [PATCH v4 20/34] vsprintf: flags_string() " Kent Overstreet
2022-06-20 0:42 ` [PATCH v4 21/34] vsprintf: Refactor device_node_string, fwnode_string Kent Overstreet
2022-06-20 0:42 ` [PATCH v4 22/34] vsprintf: Refactor hex_string, bitmap_string_list, bitmap_string Kent Overstreet
2022-06-20 0:42 ` [PATCH v4 23/34] Input/joystick/analog: Convert from seq_buf -> printbuf Kent Overstreet
2022-06-20 0:42 ` [PATCH v4 24/34] mm/memcontrol.c: Convert to printbuf Kent Overstreet
2022-06-20 11:37 ` Michal Hocko
2022-06-20 15:13 ` Kent Overstreet
2022-06-20 15:52 ` Michal Hocko
2022-06-20 0:42 ` [PATCH v4 25/34] clk: tegra: bpmp: " Kent Overstreet
2022-06-20 0:42 ` [PATCH v4 26/34] tools/testing/nvdimm: " Kent Overstreet
2022-06-24 19:32 ` Dan Williams
2022-06-24 23:42 ` Santosh Sivaraj
2022-07-01 6:32 ` Shivaprasad G Bhat
2022-06-20 0:42 ` [PATCH v4 27/34] powerpc: " Kent Overstreet
2022-06-20 0:42 ` [PATCH v4 28/34] x86/resctrl: " Kent Overstreet
2022-06-20 0:42 ` [PATCH v4 29/34] PCI/P2PDMA: " Kent Overstreet
2022-06-20 0:42 ` [PATCH v4 30/34] tracing: trace_events_synth: " Kent Overstreet
2022-06-20 0:42 ` [PATCH v4 31/34] d_path: prt_path() Kent Overstreet
2022-06-20 0:42 ` [PATCH v4 32/34] ACPI/APEI: Add missing include Kent Overstreet
2022-06-20 0:42 ` [PATCH v4 33/34] tracing: Convert to printbuf Kent Overstreet
2022-06-20 0:42 ` [PATCH v4 34/34] Delete seq_buf Kent Overstreet
2022-06-20 4:19 ` [PATCH v4 00/34] Printbufs - new data structure for building strings David Laight
2022-06-20 4:54 ` Matthew Wilcox
2022-06-20 8:00 ` David Laight
2022-06-20 15:07 ` Kent Overstreet
2022-06-20 15:21 ` David Laight
2022-06-21 0:38 ` Joe Perches
2022-06-21 0:57 ` Kent Overstreet
2022-06-21 1:26 ` Joe Perches
2022-06-21 2:10 ` Joe Perches
2022-06-26 19:53 ` [RFC[ Alloc in vsprintf Joe Perches
2022-06-26 20:06 ` Kent Overstreet [this message]
2022-06-26 20:13 ` Joe Perches
2022-06-26 20:19 ` Linus Torvalds
2022-06-26 20:39 ` Joe Perches
2022-06-26 20:51 ` Kent Overstreet
2022-06-26 21:02 ` Joe Perches
2022-06-26 21:10 ` Kent Overstreet
2022-06-26 20:54 ` Linus Torvalds
2022-06-27 8:25 ` David Laight
2022-06-28 2:56 ` Kent Overstreet
2022-06-21 2:31 ` [PATCH v4 00/34] Printbufs - new data structure for building strings Kent Overstreet
2022-06-21 3:11 ` Kent Overstreet
2022-06-21 6:11 ` Rasmus Villemoes
2022-06-21 8:01 ` Kent Overstreet
2022-07-19 23:15 ` Steven Rostedt
2022-07-19 23:43 ` Kent Overstreet
2022-07-20 0:05 ` Steven Rostedt
2022-07-20 0:17 ` Kent Overstreet
2022-07-20 1:11 ` Steven Rostedt
2022-07-20 1:31 ` Kent Overstreet
2022-07-20 1:37 ` Steven Rostedt
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