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authorHugh Dickins <hugh@veritas.com>2005-10-20 00:23:43 -0400
committerLinus Torvalds <torvalds@g5.osdl.org>2005-10-20 02:04:30 -0400
commit1c59827d1da9bcd6970800d4f8a031b5859e8b4c (patch)
tree768e771e4da8f8f5a84d38b4b91d2fb852a4123a /drivers/net/wireless/orinoco.c
parente03d13e985d48ac4885382c9e3b1510c78bd047f (diff)
[PATCH] mm: hugetlb truncation fixes
hugetlbfs allows truncation of its files (should it?), but hugetlb.c often forgets that: crashes and misaccounting ensue. copy_hugetlb_page_range better grab the src page_table_lock since we don't want to guess what happens if concurrently truncated. unmap_hugepage_range rss accounting must not assume the full range was mapped. follow_hugetlb_page must guard with page_table_lock and be prepared to exit early. Restyle copy_hugetlb_page_range with a for loop like the others there. Signed-off-by: Hugh Dickins <hugh@veritas.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'drivers/net/wireless/orinoco.c')
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