diff options
| author | Benjamin Marzinski <[email protected]> | 2022-06-14 11:10:28 -0500 |
|---|---|---|
| committer | Mike Snitzer <[email protected]> | 2022-06-15 11:51:41 -0400 |
| commit | 10eb3a0d517fcc83eeea4242c149461205675eb4 (patch) | |
| tree | c1a72661ab3a31ea4c6155918bbb979ebbec522f /drivers/usb/cdns3 | |
| parent | b13baccc3850ca8b8cccbf8ed9912dbaa0fdf7f3 (diff) | |
dm: fix race in dm_start_io_acct
After commit 82f6cdcc3676c ("dm: switch dm_io booleans over to proper
flags") dm_start_io_acct stopped atomically checking and setting
was_accounted, which turned into the DM_IO_ACCOUNTED flag. This opened
the possibility for a race where IO accounting is started twice for
duplicate bios. To remove the race, check the flag while holding the
io->lock.
Fixes: 82f6cdcc3676c ("dm: switch dm_io booleans over to proper flags")
Cc: [email protected]
Signed-off-by: Benjamin Marzinski <[email protected]>
Signed-off-by: Mike Snitzer <[email protected]>
Diffstat (limited to 'drivers/usb/cdns3')
0 files changed, 0 insertions, 0 deletions