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| author | Christophe JAILLET <christophe.jaillet@wanadoo.fr> | 2024-04-22 12:24:06 +0200 |
|---|---|---|
| committer | Christian Brauner <brauner@kernel.org> | 2024-05-02 16:28:15 +0200 |
| commit | 45751097aeb386eb239f6a8ed0ccfd7dabce068e (patch) | |
| tree | 1dea3dfa299c70189a729c6343d9941df709f536 /net/unix/unix_bpf.c | |
| parent | 0a960ba49869ebe8ff859d000351504dd6b93b68 (diff) | |
seq_file: Optimize seq_puts()
Most of seq_puts() usages are done with a string literal. In such cases,
the length of the string car be computed at compile time in order to save
a strlen() call at run-time. seq_putc() or seq_write() can then be used
instead.
This saves a few cycles.
To have an estimation of how often this optimization triggers:
$ git grep seq_puts.*\" | wc -l
3436
$ git grep seq_puts.*\".\" | wc -l
84
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Link: https://lore.kernel.org/r/a8589bffe4830dafcb9111e22acf06603fea7132.1713781332.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Christian Brauner <brauner@kernel.org>
The output for seq_putc() generation has also be checked and works.
Diffstat (limited to 'net/unix/unix_bpf.c')
0 files changed, 0 insertions, 0 deletions