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Flag file systems as supporting parallel dio writes

Jens Axboe io-uring linux-ext4 linux-fsdevel linux-xfs 1 version In review

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  1. v1 Latest2 patches 4 repliesIn review

Patches in v1 No applies recorded yet

#Subject and filesSizeRepliesApplied
1/2fs: add FMODE_DIO_PARALLEL_WRITE flagfs/ext4/file.c fs/xfs/xfs_file.c include/linux/fs.h+7 -213 replies
2/2io_uring: avoid hashing O_DIRECT writes if the filesystem doesn't need itio_uring/io_uring.c+7 -10 replies

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None of the 2 patches has a Reviewed-by or Acked-by of their own; the series has one for all of them.

PatchDarrick J. WongChristian Brauner
SeriesR-b R-b
1/2
2/2

Trailers given in replies are filled; those carried in the patches from earlier versions are outlined with dashes.

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Cover letter [PATCHSET for-next 0/2] Flag file systems as supporting parallel dio writes

Hi,

This has been on my TODO list for a while, and now that ext4 supports parallel dio writes as well, time to dust it off and send it out... This adds an FMODE flag to inform users that a given file supports parallel dio writes. io_uring can use this to avoid serializing dio writes upfront, in case it isn't needed. A few details in patch #2, patch 1 does nothing by itself.

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Jens Axboe

Read the cover letter in its thread