diff options
| author | Jens Axboe <axboe@kernel.dk> | 2024-12-20 08:47:48 -0700 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2025-01-25 20:22:43 -0800 |
| commit | dddc559f2e7cff9c6525150cd29ef3a4f6692b26 (patch) | |
| tree | 7c161d5482ddffb230308d72c3e035bf34f18ed3 /mm/filemap.c | |
| parent | fb7d3bc4149395c1ae99029c852eab6c28fc3c88 (diff) | |
mm/filemap: add filemap_fdatawrite_range_kick() helper
Works like filemap_fdatawrite_range(), except it's a non-integrity data
writeback and hence only starts writeback on the specified range. Will
help facilitate generically starting uncached writeback from
generic_write_sync(), as header dependencies preclude doing this inline
from fs.h.
Link: https://lkml.kernel.org/r/20241220154831.1086649-11-axboe@kernel.dk
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Cc: Brian Foster <bfoster@redhat.com>
Cc: Chris Mason <clm@meta.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Matthew Wilcox (Oracle) <willy@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'mm/filemap.c')
| -rw-r--r-- | mm/filemap.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/mm/filemap.c b/mm/filemap.c index fb17b573ae51..0aa3861aed45 100644 --- a/mm/filemap.c +++ b/mm/filemap.c @@ -441,6 +441,24 @@ int filemap_fdatawrite_range(struct address_space *mapping, loff_t start, EXPORT_SYMBOL(filemap_fdatawrite_range); /** + * filemap_fdatawrite_range_kick - start writeback on a range + * @mapping: target address_space + * @start: index to start writeback on + * @end: last (non-inclusive) index for writeback + * + * This is a non-integrity writeback helper, to start writing back folios + * for the indicated range. + * + * Return: %0 on success, negative error code otherwise. + */ +int filemap_fdatawrite_range_kick(struct address_space *mapping, loff_t start, + loff_t end) +{ + return __filemap_fdatawrite_range(mapping, start, end, WB_SYNC_NONE); +} +EXPORT_SYMBOL_GPL(filemap_fdatawrite_range_kick); + +/** * filemap_flush - mostly a non-blocking flush * @mapping: target address_space * |