From cf9610f9116d55c5a66ef9f1faecacabd93a9322 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Mon, 24 Aug 2026 08:46:03 -0700 Subject: Merge tag 'pinctrl-v7.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl Pull pin control updates from Linus Walleij: "Core changes: - Use the non-blocking mux_state_try_select() in the generic MUX pin control back-end - Free pin maps on pinctrl_generic_to_map() failure in the core helpers New hardware pin control: - Qualcomm Maili TLMM SoC, PMG1110 PMIC, and Eliza LPASS LPI TLMM SoC (this is for the low power audio, LPASS = Low Power Audio SubSystem portions) - Upboard support on top of the Intel pin controller - Apple T6030 and T6031 support (just compatible strings) - Samsung Exynos 8855 SoC - Mediatek MT6858 SoC - Rockchip RK3308B and RV1106 SoCs - Airoha EN7523 and AN7563 SoCs Improvements: - Qualcomm TLMM GPIOs are unconditionally marked as wakeup capable - Qualcomm improvements on top of the Qualcomm PDC (power domain controller) irqchip improvements from tglx:s tree - Qualcomm IPQ806x and IPQ9650 non-urgent pin grop fixups - The NPCM8xx driver has been put into shape fixing many pin and group definitions - Some non-urgent Tegra 264 pin assignments are fixed up - Some non-urgent fixups to Airoha AN7581 and AN7583 registers and pin assignments, missing features etc" * tag 'pinctrl-v7.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl: (130 commits) dt-bindings: pinctrl: Convert TI DA850 pupd to DT schema pinctrl: meson: sync some modify from A4 pinctrl: meson: a4: Add input enable pin configuration pinctrl: realtek: rtd1625: remove unused group name spdif_sel pinctrl: realtek: rtd1625: fix base_bit for VE4 GPIO 13 dt-bindings: pinctrl: microchip,pic32mzda-pinctrl: Convert to DT schema Revert "Merge branch 'ib-rsk7204' into devel" pinctrl: rockchip: Add RV1106 pinctrl support dt-bindings: pinctrl: rockchip: Add RV1106 compatible pinctrl: rockchip: Decode drive strength in the get function pinctrl: fix PINCTRL_GENERIC_MUX not always being selectable pinctrl: airoha: add support of an7563 SoC dt-bindings: pinctrl: airoha: add support of an7563 pin controller pinctrl: airoha: try to find chip scu node by phandle first pinctrl: airoha: add support of en7523 SoC dt-bindings: pinctrl: airoha: add support of en7523 pin controller pinctrl: airoha: an7583: add support for olt pinmux pinctrl: airoha: an7583: add support for pon_alt pinmux pinctrl: airoha: an7583: add support for npu_uart pinmux dt-bindings: pinctrl: airoha: an7583: add missed features ... --- fs/verity/pagecache.c | 80 +++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 80 insertions(+) create mode 100644 fs/verity/pagecache.c (limited to 'fs/verity/pagecache.c') diff --git a/fs/verity/pagecache.c b/fs/verity/pagecache.c new file mode 100644 index 000000000..99f5f53ee --- /dev/null +++ b/fs/verity/pagecache.c @@ -0,0 +1,80 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Copyright 2019 Google LLC + */ +#include "fsverity_private.h" + +#include +#include +#include + +/** + * generic_read_merkle_tree_page - generic ->read_merkle_tree_page helper + * @inode: inode containing the Merkle tree + * @index: 0-based index of the Merkle tree page in the inode + * + * The caller needs to adjust @index from the Merkle-tree relative index passed + * to ->read_merkle_tree_page to the actual index where the Merkle tree is + * stored in the page cache for @inode. + */ +struct page *generic_read_merkle_tree_page(struct inode *inode, pgoff_t index) +{ + struct folio *folio; + + folio = read_mapping_folio(inode->i_mapping, index, NULL); + if (IS_ERR(folio)) + return ERR_CAST(folio); + return folio_file_page(folio, index); +} +EXPORT_SYMBOL_GPL(generic_read_merkle_tree_page); + +/** + * generic_readahead_merkle_tree() - generic ->readahead_merkle_tree helper + * @inode: inode containing the Merkle tree + * @index: 0-based index of the first Merkle tree page to read ahead in the + * inode + * @nr_pages: the number of Merkle tree pages that should be read ahead + * + * The caller needs to adjust @index from the Merkle-tree relative index passed + * to ->read_merkle_tree_page to the actual index where the Merkle tree is + * stored in the page cache for @inode. + */ +void generic_readahead_merkle_tree(struct inode *inode, pgoff_t index, + unsigned long nr_pages) +{ + struct folio *folio; + + lockdep_assert_held(&inode->i_mapping->invalidate_lock); + + folio = __filemap_get_folio(inode->i_mapping, index, FGP_ACCESSED, 0); + if (folio == ERR_PTR(-ENOENT) || + (!IS_ERR(folio) && !folio_test_uptodate(folio))) { + DEFINE_READAHEAD(ractl, NULL, NULL, inode->i_mapping, index); + + page_cache_ra_unbounded(&ractl, nr_pages, 0); + } + if (!IS_ERR(folio)) + folio_put(folio); +} +EXPORT_SYMBOL_GPL(generic_readahead_merkle_tree); + +/** + * fsverity_fill_zerohash() - fill folio with hashes of zero data block + * @folio: folio to fill + * @offset: offset in the folio to start + * @len: length of the range to fill with hashes + * @vi: fsverity info + */ +void fsverity_fill_zerohash(struct folio *folio, size_t offset, size_t len, + struct fsverity_info *vi) +{ + size_t off = offset; + + WARN_ON_ONCE(!IS_ALIGNED(offset, vi->tree_params.digest_size)); + WARN_ON_ONCE(!IS_ALIGNED(len, vi->tree_params.digest_size)); + + for (; off < (offset + len); off += vi->tree_params.digest_size) + memcpy_to_folio(folio, off, vi->tree_params.zero_digest, + vi->tree_params.digest_size); +} +EXPORT_SYMBOL_GPL(fsverity_fill_zerohash); -- cgit v1.3.1