fs/mpage: avoid negative shift for large blocksize

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For large blocksizes the number of block bits is larger than PAGE_SHIFT,
so calculate the sector number from the byte offset instead. This is
required to enable large folios with buffer-heads.

Reviewed-by: "Matthew Wilcox (Oracle)" <willy@infradead.org>
Signed-off-by: Luis Chamberlain <mcgrof@kernel.org>
Signed-off-by: Hannes Reinecke <hare@kernel.org>
Link: https://lore.kernel.org/r/20250221223823.1680616-4-mcgrof@kernel.org
Reviewed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Christian Brauner <brauner@kernel.org>

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Hannes Reinecke 2025-02-21 14:38:18 -08:00 • committed by Christian Brauner

parent b72e591f74

commit 86c60efd7c

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GPG key ID: 91C61BC06578DCA2

1 changed files with 2 additions and 2 deletions

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fs/mpage.c

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