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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2026-08-24 08:46:03 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2026-08-24 08:46:03 -0700 |
| commit | cf9610f9116d55c5a66ef9f1faecacabd93a9322 (patch) | |
| tree | 757a3d280760c654767631cab5ad8af2d86d1848 /fs/nilfs2/file.c | |
| download | linux-stable-cf9610f9116d55c5a66ef9f1faecacabd93a9322.tar.gz linux-stable-cf9610f9116d55c5a66ef9f1faecacabd93a9322.zip | |
Merge tag 'pinctrl-v7.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrlgrafted
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
...
Diffstat (limited to 'fs/nilfs2/file.c')
| -rw-r--r-- | fs/nilfs2/file.c | 165 |
1 files changed, 165 insertions, 0 deletions
diff --git a/fs/nilfs2/file.c b/fs/nilfs2/file.c new file mode 100644 index 000000000..f93b68c48 --- /dev/null +++ b/fs/nilfs2/file.c @@ -0,0 +1,165 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * NILFS regular file handling primitives including fsync(). + * + * Copyright (C) 2005-2008 Nippon Telegraph and Telephone Corporation. + * + * Written by Amagai Yoshiji and Ryusuke Konishi. + */ + +#include <linux/fs.h> +#include <linux/filelock.h> +#include <linux/mm.h> +#include <linux/writeback.h> +#include "nilfs.h" +#include "segment.h" + +int nilfs_sync_file(struct file *file, loff_t start, loff_t end, int datasync) +{ + /* + * Called from fsync() system call + * This is the only entry point that can catch write and synch + * timing for both data blocks and intermediate blocks. + * + * This function should be implemented when the writeback function + * will be implemented. + */ + struct the_nilfs *nilfs; + struct inode *inode = file->f_mapping->host; + int err = 0; + + if (nilfs_inode_dirty(inode)) { + if (datasync) + err = nilfs_construct_dsync_segment(inode->i_sb, inode, + start, end); + else + err = nilfs_construct_segment(inode->i_sb); + } + + nilfs = inode->i_sb->s_fs_info; + if (!err) + err = nilfs_flush_device(nilfs); + + return err; +} + +static vm_fault_t nilfs_page_mkwrite(struct vm_fault *vmf) +{ + struct vm_area_struct *vma = vmf->vma; + struct folio *folio = page_folio(vmf->page); + struct inode *inode = file_inode(vma->vm_file); + struct nilfs_transaction_info ti; + struct buffer_head *bh, *head; + int ret = 0; + + if (unlikely(nilfs_near_disk_full(inode->i_sb->s_fs_info))) + return VM_FAULT_SIGBUS; /* -ENOSPC */ + + sb_start_pagefault(inode->i_sb); + folio_lock(folio); + if (folio->mapping != inode->i_mapping || + folio_pos(folio) >= i_size_read(inode) || + !folio_test_uptodate(folio)) { + folio_unlock(folio); + ret = -EFAULT; /* make the VM retry the fault */ + goto out; + } + + /* + * check to see if the folio is mapped already (no holes) + */ + if (folio_test_mappedtodisk(folio)) + goto mapped; + + head = folio_buffers(folio); + if (head) { + int fully_mapped = 1; + + bh = head; + do { + if (!buffer_mapped(bh)) { + fully_mapped = 0; + break; + } + } while (bh = bh->b_this_page, bh != head); + + if (fully_mapped) { + folio_set_mappedtodisk(folio); + goto mapped; + } + } + folio_unlock(folio); + + /* + * fill hole blocks + */ + ret = nilfs_transaction_begin(inode->i_sb, &ti, 1); + /* never returns -ENOMEM, but may return -ENOSPC */ + if (unlikely(ret)) + goto out; + + file_update_time(vma->vm_file); + ret = block_page_mkwrite(vma, vmf, nilfs_get_block); + if (ret) { + nilfs_transaction_abort(inode->i_sb); + goto out; + } + nilfs_set_file_dirty(inode, 1 << (PAGE_SHIFT - inode->i_blkbits)); + nilfs_transaction_commit(inode->i_sb); + + mapped: + /* + * Since checksumming including data blocks is performed to determine + * the validity of the log to be written and used for recovery, it is + * necessary to wait for writeback to finish here, regardless of the + * stable write requirement of the backing device. + */ + folio_wait_writeback(folio); + out: + sb_end_pagefault(inode->i_sb); + return vmf_fs_error(ret); +} + +static const struct vm_operations_struct nilfs_file_vm_ops = { + .fault = filemap_fault, + .map_pages = filemap_map_pages, + .page_mkwrite = nilfs_page_mkwrite, +}; + +static int nilfs_file_mmap_prepare(struct vm_area_desc *desc) +{ + file_accessed(desc->file); + desc->vm_ops = &nilfs_file_vm_ops; + return 0; +} + +/* + * We have mostly NULL's here: the current defaults are ok for + * the nilfs filesystem. + */ +const struct file_operations nilfs_file_operations = { + .llseek = generic_file_llseek, + .read_iter = generic_file_read_iter, + .write_iter = generic_file_write_iter, + .unlocked_ioctl = nilfs_ioctl, +#ifdef CONFIG_COMPAT + .compat_ioctl = nilfs_compat_ioctl, +#endif /* CONFIG_COMPAT */ + .mmap_prepare = nilfs_file_mmap_prepare, + .open = generic_file_open, + /* .release = nilfs_release_file, */ + .fsync = nilfs_sync_file, + .splice_read = filemap_splice_read, + .splice_write = iter_file_splice_write, + .setlease = generic_setlease, +}; + +const struct inode_operations nilfs_file_inode_operations = { + .setattr = nilfs_setattr, + .permission = nilfs_permission, + .fiemap = nilfs_fiemap, + .fileattr_get = nilfs_fileattr_get, + .fileattr_set = nilfs_fileattr_set, +}; + +/* end of file */ |
