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Searched refs:_refcount (Results 1 – 11 of 11) sorted by relevance

/linux/include/linux/
H A Dpage_ref.h67 return atomic_read(&page->_refcount); in page_ref_count()
99 atomic_set(&page->_refcount, v); in set_page_count()
120 atomic_add(nr, &page->_refcount); in page_ref_add()
132 atomic_sub(nr, &page->_refcount); in page_ref_sub()
144 int ret = atomic_sub_return(nr, &folio->_refcount); in folio_ref_sub_return()
153 atomic_inc(&page->_refcount); in page_ref_inc()
165 atomic_dec(&page->_refcount); in page_ref_dec()
177 int ret = atomic_sub_and_test(nr, &page->_refcount); in page_ref_sub_and_test()
191 int ret = atomic_inc_return(&page->_refcount); in page_ref_inc_return()
205 int ret = atomic_dec_and_test(&page->_refcount); in page_ref_dec_and_test()
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H A Dmm_types.h181 atomic_t _refcount; member
348 atomic_t _refcount; member
411 FOLIO_MATCH(_refcount, _refcount);
504 TABLE_MATCH(_refcount, __page_refcount);
/linux/Documentation/mm/
H A Dtranshuge.rst113 - get_page()/put_page() and GUP operate on the folio->_refcount.
115 - ->_refcount in tail pages is always zero: get_page_unless_zero() never
137 split_huge_page uses migration entries to stabilize page->_refcount and
143 All tail pages have zero ->_refcount until atomic_add(). This prevents the
145 atomic_add() we don't care about the ->_refcount value. We already know how
/linux/kernel/
H A Dvmcore_info.c173 VMCOREINFO_OFFSET(page, _refcount); in crash_save_vmcoreinfo_init()
/linux/Documentation/core-api/
H A Dpin_user_pages.rst104 * Given the above, we can overload the page->_refcount field by using, sort of,
106 rather than dividing page->_refcount into bit fields, we simple add a medium-
108 page->_refcount. This provides fuzzy behavior: if a page has get_page() called
/linux/mm/
H A Dmemremap.c526 wake_up_var(&folio->_refcount); in __put_devmap_managed_page_refs()
H A Dslab.h104 SLAB_MATCH(_refcount, __page_refcount);
/linux/fs/xfs/
H A Dxfs_inode.c3003 return ___wait_var_event(&page->_refcount, in xfs_break_dax_layouts()
3004 atomic_read(&page->_refcount) == 1, TASK_INTERRUPTIBLE, in xfs_break_dax_layouts()
/linux/Documentation/admin-guide/kdump/
H A Dvmcoreinfo.rst144 (page, flags|_refcount|mapping|lru|_mapcount|private|compound_order|compound_head)
/linux/drivers/net/ethernet/cavium/thunder/
H A Dnicvf_queues.c170 prefetch(&page->_refcount); in nicvf_alloc_page()
/linux/fs/ext4/
H A Dinode.c3925 error = ___wait_var_event(&page->_refcount, in ext4_break_layouts()
3926 atomic_read(&page->_refcount) == 1, in ext4_break_layouts()