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| author | Takashi Iwai <tiwai@suse.de> | 2009-11-01 11:11:07 +0100 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2009-11-01 11:11:07 +0100 |
| commit | e87a3dd33eab30b4db539500064a9584867e4f2c (patch) | |
| tree | 2f7ad16e46ae30518ff63bb5391b63f7f7cc74dd /mm/filemap.c | |
| parent | b14f5de731ae657d498d18d713c6431bfbeefb4b (diff) | |
| parent | 3d00941371a765779c4e3509214c7e5793cce1fe (diff) | |
| download | kernel-crypto-e87a3dd33eab30b4db539500064a9584867e4f2c.tar.gz kernel-crypto-e87a3dd33eab30b4db539500064a9584867e4f2c.tar.xz kernel-crypto-e87a3dd33eab30b4db539500064a9584867e4f2c.zip | |
Merge branch 'fix/misc' into topic/misc
Diffstat (limited to 'mm/filemap.c')
| -rw-r--r-- | mm/filemap.c | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/mm/filemap.c b/mm/filemap.c index dd51c68e2b8..ef169f37156 100644 --- a/mm/filemap.c +++ b/mm/filemap.c @@ -58,7 +58,7 @@ /* * Lock ordering: * - * ->i_mmap_lock (vmtruncate) + * ->i_mmap_lock (truncate_pagecache) * ->private_lock (__free_pte->__set_page_dirty_buffers) * ->swap_lock (exclusive_swap_page, others) * ->mapping->tree_lock @@ -104,6 +104,10 @@ * * ->task->proc_lock * ->dcache_lock (proc_pid_lookup) + * + * (code doesn't rely on that order, so you could switch it around) + * ->tasklist_lock (memory_failure, collect_procs_ao) + * ->i_mmap_lock */ /* @@ -119,6 +123,8 @@ void __remove_from_page_cache(struct page *page) page->mapping = NULL; mapping->nrpages--; __dec_zone_page_state(page, NR_FILE_PAGES); + if (PageSwapBacked(page)) + __dec_zone_page_state(page, NR_SHMEM); BUG_ON(page_mapped(page)); /* @@ -431,6 +437,8 @@ int add_to_page_cache_locked(struct page *page, struct address_space *mapping, if (likely(!error)) { mapping->nrpages++; __inc_zone_page_state(page, NR_FILE_PAGES); + if (PageSwapBacked(page)) + __inc_zone_page_state(page, NR_SHMEM); spin_unlock_irq(&mapping->tree_lock); } else { page->mapping = NULL; @@ -1603,7 +1611,7 @@ page_not_uptodate: } EXPORT_SYMBOL(filemap_fault); -struct vm_operations_struct generic_file_vm_ops = { +const struct vm_operations_struct generic_file_vm_ops = { .fault = filemap_fault, }; |