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| -rw-r--r-- | Documentation/filesystems/iomap/operations.rst | 3 | ||||
| -rw-r--r-- | include/linux/iomap.h | 4 |
2 files changed, 7 insertions, 0 deletions
diff --git a/Documentation/filesystems/iomap/operations.rst b/Documentation/filesystems/iomap/operations.rst index c88205132039..4d30723be7fa 100644 --- a/Documentation/filesystems/iomap/operations.rst +++ b/Documentation/filesystems/iomap/operations.rst @@ -361,6 +361,9 @@ The fields are as follows: delalloc reservations to avoid having delalloc reservations for clean pagecache. This function must be supplied by the filesystem. + If this succeeds, iomap_finish_folio_write() must be called once writeback + completes for the range, regardless of whether the writeback succeeded or + failed. - ``writeback_submit``: Submit the previous built writeback context. Block based file systems should use the iomap_ioend_writeback_submit diff --git a/include/linux/iomap.h b/include/linux/iomap.h index 8b1ac08c7474..a5032e456079 100644 --- a/include/linux/iomap.h +++ b/include/linux/iomap.h @@ -435,6 +435,10 @@ struct iomap_writeback_ops { * An existing mapping from a previous call to this method can be reused * by the file system if it is still valid. * + * If this succeeds, iomap_finish_folio_write() must be called once + * writeback completes for the range, regardless of whether the + * writeback succeeded or failed. + * * Returns the number of bytes processed or a negative errno. */ ssize_t (*writeback_range)(struct iomap_writepage_ctx *wpc, |