https://github.com/torvalds/linux
Revision 491381ce07ca57f68c49c79a8a43da5b60749e32 authored by Jens Axboe on 17 October 2019, 15:20:46 UTC, committed by Jens Axboe on 17 October 2019, 21:49:11 UTC
We've got two issues with the non-regular file handling for non-blocking IO: 1) We don't want to re-do a short read in full for a non-regular file, as we can't just read the data again. 2) For non-regular files that don't support non-blocking IO attempts, we need to punt to async context even if the file is opened as non-blocking. Otherwise the caller always gets -EAGAIN. Add two new request flags to handle these cases. One is just a cache of the inode S_ISREG() status, the other tells io_uring that we always need to punt this request to async context, even if REQ_F_NOWAIT is set. Cc: stable@vger.kernel.org Reported-by: Hrvoje Zeba <zeba.hrvoje@gmail.com> Tested-by: Hrvoje Zeba <zeba.hrvoje@gmail.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
1 parent 6333ff6
Tip revision: 491381ce07ca57f68c49c79a8a43da5b60749e32 authored by Jens Axboe on 17 October 2019, 15:20:46 UTC
io_uring: fix up O_NONBLOCK handling for sockets
io_uring: fix up O_NONBLOCK handling for sockets
Tip revision: 491381c
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| init | ||
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| kernel | ||
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| .clang-format | -rw-r--r-- | 15.0 KB |
| .cocciconfig | -rw-r--r-- | 59 bytes |
| .get_maintainer.ignore | -rw-r--r-- | 71 bytes |
| .gitattributes | -rw-r--r-- | 30 bytes |
| .gitignore | -rw-r--r-- | 1.7 KB |
| .mailmap | -rw-r--r-- | 13.1 KB |
| COPYING | -rw-r--r-- | 423 bytes |
| CREDITS | -rw-r--r-- | 97.1 KB |
| Kbuild | -rw-r--r-- | 1.3 KB |
| Kconfig | -rw-r--r-- | 595 bytes |
| MAINTAINERS | -rw-r--r-- | 516.1 KB |
| Makefile | -rw-r--r-- | 60.1 KB |
| README | -rw-r--r-- | 727 bytes |
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