Eric Lee / linux-smarc-t335x-v3.2

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Commit 8518609deeacebafd71855f87cc411adb0c3be4e

Authored by Robert P. J. Day
Committed by Adrian Bunk
1 parent 3a4fa0a25d
Exists in master and in 4 other branches v3.2_AM335xPSP_04.06.00.11, v3.2_NEWT335xPSP_04.06.00.11, v3.2_SBC_SMARTMEN, v3.2_SMARCT335xPSP_04.06.00.11

Explain clearly why kmalloc() can't use __GFP_HIGHMEM. 

Fix the wishy-washy comment to clearly explain why kmalloc() can't
use the __GFP_HIGHMEM zone modifier.

Signed-off-by: Robert P. J. Day <rpjday@mindspring.com>
Signed-off-by: Adrian Bunk <bunk@kernel.org>

Showing 1 changed file with 2 additions and 1 deletions Side-by-side Diff

... ... @@ -175,7 +175,8 @@
175 175 void *__vmalloc(unsigned long size, gfp_t gfp_mask, pgprot_t prot)
176 176 {
177 177 /*
178   - * kmalloc doesn't like __GFP_HIGHMEM for some reason
  178 + * You can't specify __GFP_HIGHMEM with kmalloc() since kmalloc()
  179 + * returns only a logical address.
179 180 */
180 181 return kmalloc(size, (gfp_mask | __GFP_COMP) & ~__GFP_HIGHMEM);
181 182 }