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iomap: add a io_private field to struct iomap_ioend

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Add a private data field to struct iomap_ioend so that the file system
can attach information to it.  Zoned XFS will use this for a pointer to
the open zone.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20250206064035.2323428-9-hch@lst.de
Signed-off-by: Christian Brauner <brauner@kernel.org>
This commit is contained in:
Christoph Hellwig 2025-02-06 07:40:06 +01:00 committed by Christian Brauner
parent e523f2d4c9
commit d06244c60a
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2 changed files with 2 additions and 0 deletions
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1
fs/iomap/ioend.c
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@ -23,6 +23,7 @@ struct iomap_ioend *iomap_init_ioend(struct inode *inode,
ioend->io_offset = file_offset; ioend->io_offset = file_offset;
ioend->io_size = bio->bi_iter.bi_size; ioend->io_size = bio->bi_iter.bi_size;
ioend->io_sector = bio->bi_iter.bi_sector; ioend->io_sector = bio->bi_iter.bi_sector;
ioend->io_private = NULL;
return ioend; return ioend;
} }
EXPORT_SYMBOL_GPL(iomap_init_ioend); EXPORT_SYMBOL_GPL(iomap_init_ioend);

1
include/linux/iomap.h
View file

@ -370,6 +370,7 @@ struct iomap_ioend {
struct iomap_ioend *io_parent; /* parent for completions */ struct iomap_ioend *io_parent; /* parent for completions */
loff_t io_offset; /* offset in the file */ loff_t io_offset; /* offset in the file */
sector_t io_sector; /* start sector of ioend */ sector_t io_sector; /* start sector of ioend */
void *io_private; /* file system private data */
struct bio io_bio; /* MUST BE LAST! */ struct bio io_bio; /* MUST BE LAST! */
}; };