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authorMike Rapoport <rppt@linux.ibm.com>2019-03-08 03:31:06 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2019-03-08 05:32:03 +0300
commitb63a07d69d404435125e77286620891ef8f9d719 (patch)
tree9c6d64b7868c4215b0e7c242267a2ba90ceacd1b /arch/s390
parent1e8ffd50fd201d05b3de97858ce6868cf774b4a8 (diff)
downloadlinux-b63a07d69d404435125e77286620891ef8f9d719.tar.xz
arch: simplify several early memory allocations
There are several early memory allocations in arch/ code that use memblock_phys_alloc() to allocate memory, convert the returned physical address to the virtual address and then set the allocated memory to zero. Exactly the same behaviour can be achieved simply by calling memblock_alloc(): it allocates the memory in the same way as memblock_phys_alloc(), then it performs the phys_to_virt() conversion and clears the allocated memory. Replace the longer sequence with a simpler call to memblock_alloc(). Link: http://lkml.kernel.org/r/1546248566-14910-6-git-send-email-rppt@linux.ibm.com Signed-off-by: Mike Rapoport <rppt@linux.ibm.com> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Christoph Hellwig <hch@infradead.org> Cc: "David S. Miller" <davem@davemloft.net> Cc: Greentime Hu <green.hu@gmail.com> Cc: Guan Xuetao <gxt@pku.edu.cn> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Jonas Bonn <jonas@southpole.se> Cc: Mark Salter <msalter@redhat.com> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Michal Hocko <mhocko@suse.com> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Michal Simek <monstr@monstr.eu> Cc: Paul Mackerras <paulus@samba.org> Cc: Rich Felker <dalias@libc.org> Cc: Russell King <linux@armlinux.org.uk> Cc: Stafford Horne <shorne@gmail.com> Cc: Stefan Kristiansson <stefan.kristiansson@saunalahti.fi> Cc: Vincent Chen <deanbo422@gmail.com> Cc: Yoshinori Sato <ysato@users.sourceforge.jp> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch/s390')
-rw-r--r--arch/s390/numa/numa.c6
1 files changed, 1 insertions, 5 deletions
diff --git a/arch/s390/numa/numa.c b/arch/s390/numa/numa.c
index d31bde0870d8..2281a88f261c 100644
--- a/arch/s390/numa/numa.c
+++ b/arch/s390/numa/numa.c
@@ -62,11 +62,7 @@ int numa_debug_enabled;
*/
static __init pg_data_t *alloc_node_data(void)
{
- pg_data_t *res;
-
- res = (pg_data_t *) memblock_phys_alloc(sizeof(pg_data_t), 8);
- memset(res, 0, sizeof(pg_data_t));
- return res;
+ return memblock_alloc(sizeof(pg_data_t), 8);
}
/*