ext4: nowait aio support

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Return EAGAIN if any of the following checks fail for direct I/O:
  + i_rwsem is lockable
  + Writing beyond end of file (will trigger allocation)
  + Blocks are not allocated at the write location

Signed-off-by: Goldwyn Rodrigues <rgoldwyn@suse.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Signed-off-by: Jens Axboe <axboe@kernel.dk>

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Goldwyn Rodrigues 2017-06-20 07:05:47 -05:00 • committed by Jens Axboe

parent 03a07c92a9

commit 728fbc0e10

1 changed files with 29 additions and 6 deletions

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fs/ext4/file.c

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