Revision e6333fd4ddf7a583480017f535b9ea53c116ab81 authored by Hua Zhong on 15 May 2006, 16:44:22 UTC, committed by Linus Torvalds on 15 May 2006, 18:20:56 UTC
can_share_swap_page() is used to check if the page has the last reference. This avoids allocating a new page for COW if it's the last page. However, if CONFIG_SWAP is not set, can_share_swap_page() is defined as 0, thus always causes a copy for the last COW page. The below simple patch fixes it. Signed-off-by: Hua Zhong <hzhong@gmail.com> Cc: David Howells <dhowells@redhat.com> Cc: Hugh Dickins <hugh@veritas.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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| arch | ||
| block | ||
| crypto | ||
| drivers | ||
| fs | ||
| include | ||
| init | ||
| ipc | ||
| kernel | ||
| lib | ||
| mm | ||
| net | ||
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| security | ||
| sound | ||
| usr | ||
| .gitignore | -rw-r--r-- | 462 bytes |
| COPYING | -rw-r--r-- | 18.3 KB |
| CREDITS | -rw-r--r-- | 87.4 KB |
| Kbuild | -rw-r--r-- | 1.2 KB |
| MAINTAINERS | -rw-r--r-- | 67.6 KB |
| Makefile | -rw-r--r-- | 43.7 KB |
| README | -rw-r--r-- | 16.2 KB |
| REPORTING-BUGS | -rw-r--r-- | 3.0 KB |
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