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| author | Dominique Martinet <asmadeus@codewreck.org> | 2021-11-04 21:01:27 +0900 |
|---|---|---|
| committer | Dominique Martinet <asmadeus@codewreck.org> | 2021-11-04 21:04:04 +0900 |
| commit | b1843d23854aeae95ce92a3432bc1bea4cdbb2e7 (patch) | |
| tree | 9c97c1632d43c1b30054418e6f78ae746e64697c | |
| parent | 05f975cd6a0b35a0fba725250c7b7cdb680046fa (diff) | |
| download | linux-b1843d23854aeae95ce92a3432bc1bea4cdbb2e7.tar.gz | |
9p: set readahead and io size according to maxsize
having a readahead of 128k with a msize of 128k (with overhead) lead to reading 124+4k everytime, making two roundtrips needlessly. tune readahead according to msize when cache is enabled for better performance Link: http://lkml.kernel.org/r/20211104120323.2189376-1-asmadeus@codewreck.org Signed-off-by: Dominique Martinet <asmadeus@codewreck.org>
| -rw-r--r-- | fs/9p/vfs_super.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/fs/9p/vfs_super.c b/fs/9p/vfs_super.c index c6028af51925..b0632f4e337f 100644 --- a/fs/9p/vfs_super.c +++ b/fs/9p/vfs_super.c @@ -79,6 +79,9 @@ v9fs_fill_super(struct super_block *sb, struct v9fs_session_info *v9ses, if (!v9ses->cache) { sb->s_bdi->ra_pages = 0; sb->s_bdi->io_pages = 0; + } else { + sb->s_bdi->ra_pages = v9ses->maxdata >> PAGE_SHIFT; + sb->s_bdi->io_pages = v9ses->maxdata >> PAGE_SHIFT; } sb->s_flags |= SB_ACTIVE | SB_DIRSYNC; |