diff options
| author | Mithlesh Thukral <mithlesh@linsyssoft.com> | 2009-01-19 20:24:30 +0530 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2009-04-03 14:53:10 -0700 |
| commit | 6a2946baa97337ad17c967ee8ec0bbfef491af30 (patch) | |
| tree | 83f75c032c18f0fce25f831ab1a6704daba71e4d /drivers/staging/sxg/sxg.h | |
| parent | d9d578bff771229c017582d746259ac282ee01e2 (diff) | |
Staging: sxg: Locking related changes. Fix locking levels
* Fix locking related issues like taking locks at right level.
* Convert some variables to atomic, to prevent taking them while
incrementing or decrementing them.
Signed-off-by: LinSysSoft Sahara Team <saharaproj@linsyssoft.com>
Signed-off-by: Christopher Harrer <charrer@alacritech.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/staging/sxg/sxg.h')
| -rw-r--r-- | drivers/staging/sxg/sxg.h | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/staging/sxg/sxg.h b/drivers/staging/sxg/sxg.h index 2d0ad1977ccc..4d983414b5fd 100644 --- a/drivers/staging/sxg/sxg.h +++ b/drivers/staging/sxg/sxg.h @@ -290,7 +290,7 @@ struct sxg_stats { struct list_entry *_ple; \ if ((_pAdapt->FreeSglBufferCount < SXG_MIN_SGL_BUFFERS) && \ (_pAdapt->AllSglBufferCount < SXG_MAX_SGL_BUFFERS) && \ - (_pAdapt->AllocationsPending == 0)) { \ + (atomic_read(&_pAdapt->pending_allocations) == 0)) { \ sxg_allocate_buffer_memory(_pAdapt, \ (sizeof(struct sxg_scatter_gather) + SXG_SGL_BUF_SIZE),\ SXG_BUFFER_TYPE_SGL); \ @@ -670,6 +670,9 @@ struct adapter_t { ushort FreeRcvBlockCount; /* # of free rcv descriptor blocks */ ushort AllRcvBlockCount; /* Number of total receive blocks */ ushort ReceiveBufferSize; /* SXG_RCV_DATA/JUMBO_BUFFER_SIZE only */ + /* Converted this to a atomic variable + u32 AllocationsPending; */ + atomic_t pending_allocations; u32 AllocationsPending; /* Receive allocation pending */ u32 RcvBuffersOnCard; /* SXG_DATA_BUFFERS owned by card */ /* SGL buffers */ |