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authorJeff Moyer <jmoyer@redhat.com>2018-06-18 16:57:12 +0300
committerMartin K. Petersen <martin.petersen@oracle.com>2018-06-20 05:02:25 +0300
commit5b9d397447f8c03843198b573d7cecf8893523fb (patch)
treed1a550a378ffb0e77f02a15ff61b79f2f081d772 /drivers/scsi/sg.c
parentb3a8aa90c46095cbad454eb068bfb5a8eb56d4e3 (diff)
downloadlinux-5b9d397447f8c03843198b573d7cecf8893523fb.tar.xz
scsi: sg: clean up gfp_mask in sg_build_indirect
commit a45b599ad808c ("scsi: sg: allocate with __GFP_ZERO in sg_build_indirect()") changed the call to alloc_pages to always use __GFP_ZERO. Just above that, though, there was this: if (!capable(CAP_SYS_ADMIN) || !capable(CAP_SYS_RAWIO)) gfp_mask |= __GFP_ZERO; And there's only one user of the gfp_mask. Just or in the __GFP_ZERO flag at the top of the function and be done with it. Signed-off-by: Jeff Moyer <jmoyer@redhat.com> Acked-by: Douglas Gilbert <dgilbert@interlog.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi/sg.c')
-rw-r--r--drivers/scsi/sg.c7
1 files changed, 2 insertions, 5 deletions
diff --git a/drivers/scsi/sg.c b/drivers/scsi/sg.c
index 53ae52dbff84..c926e07aabda 100644
--- a/drivers/scsi/sg.c
+++ b/drivers/scsi/sg.c
@@ -1850,7 +1850,7 @@ sg_build_indirect(Sg_scatter_hold * schp, Sg_fd * sfp, int buff_size)
int ret_sz = 0, i, k, rem_sz, num, mx_sc_elems;
int sg_tablesize = sfp->parentdp->sg_tablesize;
int blk_size = buff_size, order;
- gfp_t gfp_mask = GFP_ATOMIC | __GFP_COMP | __GFP_NOWARN;
+ gfp_t gfp_mask = GFP_ATOMIC | __GFP_COMP | __GFP_NOWARN | __GFP_ZERO;
struct sg_device *sdp = sfp->parentdp;
if (blk_size < 0)
@@ -1880,9 +1880,6 @@ sg_build_indirect(Sg_scatter_hold * schp, Sg_fd * sfp, int buff_size)
if (sdp->device->host->unchecked_isa_dma)
gfp_mask |= GFP_DMA;
- if (!capable(CAP_SYS_ADMIN) || !capable(CAP_SYS_RAWIO))
- gfp_mask |= __GFP_ZERO;
-
order = get_order(num);
retry:
ret_sz = 1 << (PAGE_SHIFT + order);
@@ -1893,7 +1890,7 @@ retry:
num = (rem_sz > scatter_elem_sz_prev) ?
scatter_elem_sz_prev : rem_sz;
- schp->pages[k] = alloc_pages(gfp_mask | __GFP_ZERO, order);
+ schp->pages[k] = alloc_pages(gfp_mask, order);
if (!schp->pages[k])
goto out;