diff options
| author | Karsten Graul <kgraul@linux.ibm.com> | 2020-04-29 17:10:48 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2020-04-29 12:26:33 -0700 |
| commit | faca536008375bece23783e7382b5d0356c13ba5 (patch) | |
| tree | 69406ee8f26c28173e6956e1547aa98a86547a42 /net/smc/smc_core.h | |
| parent | ef79d439cd124d9fb7258bb35d44c71aec11b829 (diff) | |
| download | linux-faca536008375bece23783e7382b5d0356c13ba5.tar.gz linux-faca536008375bece23783e7382b5d0356c13ba5.tar.bz2 linux-faca536008375bece23783e7382b5d0356c13ba5.zip | |
net/smc: use mutex instead of rwlock_t to protect buffers
The locks for sndbufs and rmbs are never used from atomic context. Using
a mutex for these locks will allow to nest locks with other mutexes.
Signed-off-by: Karsten Graul <kgraul@linux.ibm.com>
Reviewed-by: Ursula Braun <ubraun@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/smc/smc_core.h')
| -rw-r--r-- | net/smc/smc_core.h | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/net/smc/smc_core.h b/net/smc/smc_core.h index d785656b3489..379ced490c49 100644 --- a/net/smc/smc_core.h +++ b/net/smc/smc_core.h @@ -205,9 +205,9 @@ struct smc_link_group { unsigned short vlan_id; /* vlan id of link group */ struct list_head sndbufs[SMC_RMBE_SIZES];/* tx buffers */ - rwlock_t sndbufs_lock; /* protects tx buffers */ + struct mutex sndbufs_lock; /* protects tx buffers */ struct list_head rmbs[SMC_RMBE_SIZES]; /* rx buffers */ - rwlock_t rmbs_lock; /* protects rx buffers */ + struct mutex rmbs_lock; /* protects rx buffers */ u8 id[SMC_LGR_ID_SIZE]; /* unique lgr id */ struct delayed_work free_work; /* delayed freeing of an lgr */ |