diff options
| author | Matthew Wilcox (Oracle) <willy@infradead.org> | 2026-05-28 18:31:45 +0100 |
|---|---|---|
| committer | Christian Brauner <brauner@kernel.org> | 2026-06-04 10:28:10 +0200 |
| commit | ac75b922bb67cc8edb52006c9346dc0ca91d04c8 (patch) | |
| tree | 491aa707e9a74fe3094e97b22eadecb2c6282f29 /fs/buffer.c | |
| parent | 2911b935825523a71a71eecfe908902d181c041e (diff) | |
buffer: Remove b_end_io
This shrinks buffer_head by 8 bytes, letting us pack more buffer heads
per slab. With a Debian config, it shrinks from 104 bytes to 96 bytes
which is 42 objects per 4KiB page rather than 39, a 7% reduction in the
amount of memory used.
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Link: https://patch.msgid.link/20260528173150.1093780-33-willy@infradead.org
Reviewed-by: Jan Kara <jack@suse.cz>
Signed-off-by: Christian Brauner (Amutable) <brauner@kernel.org>
Diffstat (limited to 'fs/buffer.c')
| -rw-r--r-- | fs/buffer.c | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/fs/buffer.c b/fs/buffer.c index 3df0ea1a6342..ccda92920175 100644 --- a/fs/buffer.c +++ b/fs/buffer.c @@ -946,7 +946,6 @@ static sector_t folio_init_buffers(struct folio *folio, do { if (!buffer_mapped(bh)) { - bh->b_end_io = NULL; bh->b_private = NULL; bh->b_bdev = bdev; bh->b_blocknr = block; |