Revision 5e559561a8d7e6d4adfce6aa8fbf3daa3dec1577 authored by Jens Axboe on 13 November 2019, 23:12:46 UTC, committed by Jens Axboe on 13 November 2019, 23:15:14 UTC
A test case was reported where two linked reads with registered buffers failed the second link always. This is because we set the expected value of a request in req->result, and if we don't get this result, then we fail the dependent links. For some reason the registered buffer import returned -ERROR/0, while the normal import returns -ERROR/length. This broke linked commands with registered buffers. Fix this by making io_import_fixed() correctly return the mapped length. Cc: stable@vger.kernel.org # v5.3 Reported-by: 李通洲 <carter.li@eoitek.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
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| File | Mode | Size |
|---|---|---|
| Kconfig | -rw-r--r-- | 72.8 KB |
| Makefile | -rw-r--r-- | 1.2 KB |
| calibrate.c | -rw-r--r-- | 8.6 KB |
| do_mounts.c | -rw-r--r-- | 14.8 KB |
| do_mounts.h | -rw-r--r-- | 1.1 KB |
| do_mounts_initrd.c | -rw-r--r-- | 3.5 KB |
| do_mounts_md.c | -rw-r--r-- | 7.9 KB |
| do_mounts_rd.c | -rw-r--r-- | 8.1 KB |
| init_task.c | -rw-r--r-- | 5.3 KB |
| initramfs.c | -rw-r--r-- | 14.3 KB |
| main.c | -rw-r--r-- | 30.1 KB |
| noinitramfs.c | -rw-r--r-- | 873 bytes |
| version.c | -rw-r--r-- | 1.3 KB |
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