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9p: don't opencode filemap_fdatawrite_range in v9fs_mmap_vm_close

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Use filemap_fdatawrite_range instead of opencoding the logic using
filemap_fdatawrite_wbc.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Link: https://patch.msgid.link/20251024080431.324236-3-hch@lst.de
Reviewed-by: Jan Kara <jack@suse.cz>
Reviewed-by: Damien Le Moal <dlemoal@kernel.org>
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Signed-off-by: Christian Brauner <brauner@kernel.org>
This commit is contained in:
Christoph Hellwig 2025-10-24 10:04:13 +02:00 • committed by Christian Brauner
parent a21134b5d6
commit 3c2e5cee5e
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GPG key ID: 91C61BC06578DCA2
1 changed files with 4 additions and 13 deletions
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17
fs/9p/vfs_file.c
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@ -483,24 +483,15 @@ v9fs_vm_page_mkwrite(struct vm_fault *vmf)
static void v9fs_mmap_vm_close(struct vm_area_struct *vma)
{
struct inode *inode;
struct writeback_control wbc = {
.nr_to_write = LONG_MAX,
.sync_mode = WB_SYNC_ALL,
.range_start = (loff_t)vma->vm_pgoff * PAGE_SIZE,
/* absolute end, byte at end included */
.range_end = (loff_t)vma->vm_pgoff * PAGE_SIZE +
(vma->vm_end - vma->vm_start - 1),
};
if (!(vma->vm_flags & VM_SHARED))
return;
p9_debug(P9_DEBUG_VFS, "9p VMA close, %p, flushing", vma);
inode = file_inode(vma->vm_file);
filemap_fdatawrite_wbc(inode->i_mapping, &wbc);
filemap_fdatawrite_range(file_inode(vma->vm_file)->i_mapping,
(loff_t)vma->vm_pgoff * PAGE_SIZE,
(loff_t)vma->vm_pgoff * PAGE_SIZE +
(vma->vm_end - vma->vm_start - 1));
}
static const struct vm_operations_struct v9fs_mmap_file_vm_ops = {