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| author | Benjamin LaHaise <bcrl@kvack.org> | 2013-08-05 19:21:43 +0200 |
|---|---|---|
| committer | Benjamin LaHaise <bcrl@kvack.org> | 2013-08-05 19:21:43 +0200 |
| commit | da90382c2ec367aac88ff6aa76afb659ee0e4235 (patch) | |
| tree | b0fd73537a51048b61a23732559100371d777b07 /Kbuild | |
| parent | aio: be defensive to ensure request batching is non-zero instead of BUG_ON() (diff) | |
| download | linux-da90382c2ec367aac88ff6aa76afb659ee0e4235.tar.xz linux-da90382c2ec367aac88ff6aa76afb659ee0e4235.zip | |
aio: fix error handling and rcu usage in "convert the ioctx list to table lookup v3"
In the patch "aio: convert the ioctx list to table lookup v3", incorrect
handling in the ioctx_alloc() error path was introduced that lead to an
ioctx being added via ioctx_add_table() while freed when the ioctx_alloc()
call returned -EAGAIN due to hitting the aio_max_nr limit. Fix this by
only calling ioctx_add_table() as the last step in ioctx_alloc().
Also, several unnecessary rcu_dereference() calls were added that lead to
RCU warnings where the system was already protected by a spin lock for
accessing mm->ioctx_table.
Signed-off-by: Benjamin LaHaise <bcrl@kvack.org>
Diffstat (limited to 'Kbuild')
0 files changed, 0 insertions, 0 deletions