diff options
author | Mandeep Singh Baines <[email protected]> | 2012-07-30 14:43:22 -0700 |
---|---|---|
committer | Linus Torvalds <[email protected]> | 2012-07-30 17:25:22 -0700 |
commit | e04f228335bde305d2833e40382ed37fc36f9efe (patch) | |
tree | b942a4540c99d44bba5e0950c92f089a2f621ebf | |
parent | c24aa64d169b7224f1a5bc6a4b1365da37ce861b (diff) |
lib/scatterlist: do not re-write gfp_flags in __sg_alloc_table()
We are seeing a lot of sg_alloc_table allocation failures using the new
drm prime infrastructure. We isolated the cause to code in
__sg_alloc_table that was re-writing the gfp_flags.
There is a comment in the code that suggest that there is an assumption
about the allocation coming from a memory pool. This was likely true
when sg lists were primarily used for disk I/O.
Signed-off-by: Mandeep Singh Baines <[email protected]>
Cc: Jens Axboe <[email protected]>
Cc: Paul Gortmaker <[email protected]>
Cc: Cong Wang <[email protected]>
Cc: Daniel Vetter <[email protected]>
Cc: Rob Clark <[email protected]>
Cc: Sumit Semwal <[email protected]>
Cc: Inki Dae <[email protected]>
Cc: Dave Airlie <[email protected]>
Cc: Sonny Rao <[email protected]>
Cc: Olof Johansson <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
-rw-r--r-- | lib/scatterlist.c | 8 |
1 files changed, 0 insertions, 8 deletions
diff --git a/lib/scatterlist.c b/lib/scatterlist.c index 6096e89bee55..d09bdd8b40ce 100644 --- a/lib/scatterlist.c +++ b/lib/scatterlist.c @@ -279,14 +279,6 @@ int __sg_alloc_table(struct sg_table *table, unsigned int nents, if (!left) sg_mark_end(&sg[sg_size - 1]); - /* - * only really needed for mempool backed sg allocations (like - * SCSI), a possible improvement here would be to pass the - * table pointer into the allocator and let that clear these - * flags - */ - gfp_mask &= ~__GFP_WAIT; - gfp_mask |= __GFP_HIGH; prv = sg; } while (left); |