The patch titled
Subject: axonram: fix bug in direct_access
has been added to the -mm tree. Its filename is
axonram-fix-bug-in-direct_access.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/axonram-fix-bug-in-direct_access.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/axonram-fix-bug-in-direct_access.patch
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------------------------------------------------------
From: Matthew Wilcox <matthew.r.wilcox@xxxxxxxxx>
Subject: axonram: fix bug in direct_access
The 'pfn' returned by axonram was completely bogus, and has been since
2008.
Signed-off-by: Matthew Wilcox <matthew.r.wilcox@xxxxxxxxx>
Reviewed-by: Jan Kara <jack@xxxxxxx>
Reviewed-by: Mathieu Desnoyers <mathieu.desnoyers@xxxxxxxxxxxx>
Cc: Jens Axboe <axboe@xxxxxxxxx>
Cc: Theodore Ts'o <tytso@xxxxxxx>
Cc: Christoph Hellwig <hch@xxxxxx>
Cc: Dave Chinner <david@xxxxxxxxxxxxx>
Cc: Andreas Dilger <andreas.dilger@xxxxxxxxx>
Cc: Boaz Harrosh <boaz@xxxxxxxxxxxxx>
Cc: Kirill A. Shutemov <kirill.shutemov@xxxxxxxxxxxxxxx>
Cc: Randy Dunlap <rdunlap@xxxxxxxxxxxxx>
Cc: Ross Zwisler <ross.zwisler@xxxxxxxxxxxxxxx>
Cc: <stable@xxxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
arch/powerpc/sysdev/axonram.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff -puN arch/powerpc/sysdev/axonram.c~axonram-fix-bug-in-direct_access arch/powerpc/sysdev/axonram.c
--- a/arch/powerpc/sysdev/axonram.c~axonram-fix-bug-in-direct_access
+++ a/arch/powerpc/sysdev/axonram.c
@@ -156,7 +156,7 @@ axon_ram_direct_access(struct block_devi
}
*kaddr = (void *)(bank->ph_addr + offset);
- *pfn = virt_to_phys(kaddr) >> PAGE_SHIFT;
+ *pfn = virt_to_phys(*kaddr) >> PAGE_SHIFT;
return 0;
}
_
Patches currently in -mm which might be from matthew.r.wilcox@xxxxxxxxx are
axonram-fix-bug-in-direct_access.patch
block-change-direct_access-calling-convention.patch
mm-fix-xip-fault-vs-truncate-race.patch
mm-fix-xip-fault-vs-truncate-race-fix.patch
mm-allow-page-fault-handlers-to-perform-the-cow.patch
mm-allow-page-fault-handlers-to-perform-the-cow-fix.patch
vfsext2-introduce-is_daxinode.patch
daxext2-replace-xip-read-and-write-with-dax-i-o.patch
daxext2-replace-ext2_clear_xip_target-with-dax_clear_blocks.patch
daxext2-replace-the-xip-page-fault-handler-with-the-dax-page-fault-handler.patch
daxext2-replace-the-xip-page-fault-handler-with-the-dax-page-fault-handler-fix.patch
daxext2-replace-xip_truncate_page-with-dax_truncate_page.patch
vfs-remove-get_xip_mem.patch
ext2-remove-ext2_xip_verify_sb.patch
ext2-remove-ext2_use_xip.patch
ext2-remove-xipc-and-xiph.patch
vfsext2-remove-config_ext2_fs_xip-and-rename-config_fs_xip-to-config_fs_dax.patch
ext2-remove-ext2_aops_xip.patch
ext2-get-rid-of-most-mentions-of-xip-in-ext2.patch
dax-add-dax_zero_page_range.patch
dax-add-dax_zero_page_range-fix.patch
ext4-add-dax-functionality.patch
brd-rename-xip-to-dax.patch
do_shared_fault-check-that-mmap_sem-is-held.patch
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