https://github.com/torvalds/linux
Revision 409ae5a76e0505c8ffe1424f9c00dbf2ec7b5eea authored by Matias Bjørling on 10 November 2016, 11:26:57 UTC, committed by Jens Axboe on 12 November 2016, 01:27:32 UTC
The ns->lba_shift assumes its value to be the logarithmic of the LA size. A previous patch duplicated the lba_shift calculation into lightnvm. It prematurely also subtracted a 512byte shift, which commonly is applied per-command. The 512byte shift being subtracted twice led to data loss when restoring the logical to physical mapping table from device and when issuing I/O commands using rrpc. Fix offset by removing the 512byte shift subtraction when calculating lba_shift. Fixes: b0b4e09c1ae7 "lightnvm: control life of nvm_dev in driver" Reported-by: Javier González <javier@cnexlabs.com> Signed-off-by: Matias Bjørling <m@bjorling.me> Signed-off-by: Jens Axboe <axboe@fb.com>
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Tip revision: 409ae5a76e0505c8ffe1424f9c00dbf2ec7b5eea authored by Matias Bjørling on 10 November 2016, 11:26:57 UTC
lightnvm: invalid offset calculation for lba_shift
lightnvm: invalid offset calculation for lba_shift
Tip revision: 409ae5a
| File | Mode | Size |
|---|---|---|
| Documentation | ||
| arch | ||
| block | ||
| certs | ||
| crypto | ||
| drivers | ||
| firmware | ||
| fs | ||
| include | ||
| init | ||
| ipc | ||
| kernel | ||
| lib | ||
| mm | ||
| net | ||
| samples | ||
| scripts | ||
| security | ||
| sound | ||
| tools | ||
| usr | ||
| virt | ||
| .cocciconfig | -rw-r--r-- | 59 bytes |
| .get_maintainer.ignore | -rw-r--r-- | 31 bytes |
| .gitattributes | -rw-r--r-- | 30 bytes |
| .gitignore | -rw-r--r-- | 1.3 KB |
| .mailmap | -rw-r--r-- | 7.5 KB |
| COPYING | -rw-r--r-- | 18.3 KB |
| CREDITS | -rw-r--r-- | 96.0 KB |
| Kbuild | -rw-r--r-- | 2.8 KB |
| Kconfig | -rw-r--r-- | 252 bytes |
| MAINTAINERS | -rw-r--r-- | 373.4 KB |
| Makefile | -rw-r--r-- | 57.4 KB |
| README | -rw-r--r-- | 17.9 KB |
| REPORTING-BUGS | -rw-r--r-- | 7.3 KB |
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