mm/filemap: reduce unnecessary xarray lookups in filemap_get_folios_contig()

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Apply the same optimization used in filemap_get_read_batch() by moving the
boundary check from the loop condition to before xas_next(), avoiding an
unnecessary xarray lookup and reducing branches in the fast path.

Link: https://lore.kernel.org/20260620062446.351475-3-chizhiling@163.com
Signed-off-by: Chi Zhiling <chizhiling@kylinos.cn>
Reviewed-by: Jan Kara <jack@suse.cz>
Cc: Matthew Wilcox (Oracle) <willy@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

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Chi Zhiling 2026-06-20 14:24:46 +08:00 • committed by Andrew Morton

parent e1c345582c

commit 32cd1afeca

1 changed files with 14 additions and 15 deletions

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mm/filemap.c

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