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| author | Johannes Berg <johannes@sipsolutions.net> | 2008-02-25 16:27:47 +0100 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2008-03-06 15:30:47 -0500 |
| commit | 73651ee6396c499ccb59ebc84c9274db01ed026d (patch) | |
| tree | 1d59027cbdaec732f3e1378770cbf7b42b48cd70 /net/mac80211/debugfs_sta.c | |
| parent | d0709a65181beb787ef3f58cfe45536a2bb254c8 (diff) | |
| download | lwn-73651ee6396c499ccb59ebc84c9274db01ed026d.tar.gz lwn-73651ee6396c499ccb59ebc84c9274db01ed026d.zip | |
mac80211: split sta_info_add
sta_info_add() has two functions: allocating a station info
structure and inserting it into the hash table/list. Splitting
these two functions allows allocating with GFP_KERNEL in many
places instead of GFP_ATOMIC which is now required by the RCU
protection. Additionally, in many places RCU protection is now
no longer needed at all because between sta_info_alloc() and
sta_info_insert() the caller owns the structure.
This fixes a few race conditions with setting initial flags
and similar, but not all (see comments in ieee80211_sta.c and
cfg.c). More documentation on the existing races will be in
a follow-up patch.
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'net/mac80211/debugfs_sta.c')
0 files changed, 0 insertions, 0 deletions