#include <linux/gfp.h>
#include <linux/types.h>
#include <linux/radix-tree.h>
#include <linux/rcupdate.h>

struct item {
	unsigned long index;
	unsigned int order;
};

struct item *item_create(unsigned long index, unsigned int order);
int __item_insert(struct radix_tree_root *root, struct item *item);
int item_insert(struct radix_tree_root *root, unsigned long index);
int item_insert_order(struct radix_tree_root *root, unsigned long index,
			unsigned order);
int item_delete(struct radix_tree_root *root, unsigned long index);
struct item *item_lookup(struct radix_tree_root *root, unsigned long index);

void item_check_present(struct radix_tree_root *root, unsigned long index);
void item_check_absent(struct radix_tree_root *root, unsigned long index);
void item_gang_check_present(struct radix_tree_root *root,
			unsigned long start, unsigned long nr,
			int chunk, int hop);
void item_full_scan(struct radix_tree_root *root, unsigned long start,
			unsigned long nr, int chunk);
void item_kill_tree(struct radix_tree_root *root);

int tag_tagged_items(struct radix_tree_root *, pthread_mutex_t *,
			unsigned long start, unsigned long end, unsigned batch,
			unsigned iftag, unsigned thentag);
unsigned long find_item(struct radix_tree_root *, void *item);

void tag_check(void);
void multiorder_checks(void);
void iteration_test(unsigned order, unsigned duration);
void benchmark(void);

struct item *
item_tag_set(struct radix_tree_root *root, unsigned long index, int tag);
struct item *
item_tag_clear(struct radix_tree_root *root, unsigned long index, int tag);
int item_tag_get(struct radix_tree_root *root, unsigned long index, int tag);
void tree_verify_min_height(struct radix_tree_root *root, int maxindex);
void verify_tag_consistency(struct radix_tree_root *root, unsigned int tag);

extern int nr_allocated;

/* Normally private parts of lib/radix-tree.c */
struct radix_tree_node *entry_to_node(void *ptr);
void radix_tree_dump(struct radix_tree_root *root);
int root_tag_get(struct radix_tree_root *root, unsigned int tag);
unsigned long node_maxindex(struct radix_tree_node *);
unsigned long shift_maxindex(unsigned int shift);
int radix_tree_cpu_dead(unsigned int cpu);
struct radix_tree_preload {
	unsigned nr;
	struct radix_tree_node *nodes;
};
extern struct radix_tree_preload radix_tree_preloads;
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<div class='path'>path: <a href='/cgit.cgi/linux/net-next.git/commit/?h=nds-private-remove&amp;id=7a7b5df84b6b4e5d599c7289526eed96541a0654'>root</a>/<a href='/cgit.cgi/linux/net-next.git/commit/include?h=nds-private-remove&amp;id=7a7b5df84b6b4e5d599c7289526eed96541a0654'>include</a>/<a href='/cgit.cgi/linux/net-next.git/commit/include/drm?h=nds-private-remove&amp;id=7a7b5df84b6b4e5d599c7289526eed96541a0654'>drm</a>/<a href='/cgit.cgi/linux/net-next.git/commit/include/drm/drm_framebuffer.h?h=nds-private-remove&amp;id=7a7b5df84b6b4e5d599c7289526eed96541a0654'>drm_framebuffer.h</a></div><div class='content'><div class='cgit-panel'><b>diff options</b><form method='get'><input type='hidden' name='h' value='nds-private-remove'/><input type='hidden' name='id' value='7a7b5df84b6b4e5d599c7289526eed96541a0654'/><table><tr><td colspan='2'/></tr><tr><td class='label'>context:</td><td class='ctrl'><select name='context' onchange='this.form.submit();'><option value='1'>1</option><option value='2'>2</option><option value='3' selected='selected'>3</option><option value='4'>4</option><option value='5'>5</option><option value='6'>6</option><option value='7'>7</option><option value='8'>8</option><option value='9'>9</option><option value='10'>10</option><option value='15'>15</option><option value='20'>20</option><option value='25'>25</option><option value='30'>30</option><option value='35'>35</option><option value='40'>40</option></select></td></tr><tr><td class='label'>space:</td><td class='ctrl'><select name='ignorews' onchange='this.form.submit();'><option value='0' selected='selected'>include</option><option value='1'>ignore</option></select></td></tr><tr><td class='label'>mode:</td><td class='ctrl'><select name='dt' onchange='this.form.submit();'><option value='0' selected='selected'>unified</option><option value='1'>ssdiff</option><option value='2'>stat only</option></select></td></tr><tr><td/><td class='ctrl'><noscript><input type='submit' value='reload'/></noscript></td></tr></table></form></div><table summary='commit info' class='commit-info'>
<tr><th>author</th><td>Johan Hovold &lt;johan@kernel.org&gt;</td><td class='right'>2017-01-30 11:26:38 +0100</td></tr>
<tr><th>committer</th><td>Jiri Kosina &lt;jkosina@suse.cz&gt;</td><td class='right'>2017-01-31 12:59:32 +0100</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/include/drm/drm_framebuffer.h?h=nds-private-remove&amp;id=7a7b5df84b6b4e5d599c7289526eed96541a0654'>7a7b5df84b6b4e5d599c7289526eed96541a0654</a> (<a href='/cgit.cgi/linux/net-next.git/patch/include/drm/drm_framebuffer.h?id=7a7b5df84b6b4e5d599c7289526eed96541a0654'>patch</a>)</td></tr>
<tr><th>tree</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/tree/?h=nds-private-remove&amp;id=7a7b5df84b6b4e5d599c7289526eed96541a0654'>cf7514c7ddf4410fe37ca9099a2785e1cf08fa7d</a> /<a href='/cgit.cgi/linux/net-next.git/tree/include/drm/drm_framebuffer.h?h=nds-private-remove&amp;id=7a7b5df84b6b4e5d599c7289526eed96541a0654'>include/drm/drm_framebuffer.h</a></td></tr>
<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/include/drm/drm_framebuffer.h?h=nds-private-remove&amp;id=877a021e08ccb6434718c0cc781fdf943c884cc0'>877a021e08ccb6434718c0cc781fdf943c884cc0</a> (<a href='/cgit.cgi/linux/net-next.git/diff/include/drm/drm_framebuffer.h?h=nds-private-remove&amp;id=7a7b5df84b6b4e5d599c7289526eed96541a0654&amp;id2=877a021e08ccb6434718c0cc781fdf943c884cc0'>diff</a>)</td></tr></table>
<div class='commit-subject'>HID: cp2112: fix sleep-while-atomic</div><div class='commit-msg'>A recent commit fixing DMA-buffers on stack added a shared transfer
buffer protected by a spinlock. This is broken as the USB HID request
callbacks can sleep. Fix this up by replacing the spinlock with a mutex.

Fixes: 1ffb3c40ffb5 ("HID: cp2112: make transfer buffers DMA capable")
Cc: stable &lt;stable@vger.kernel.org&gt;	# 4.9
Signed-off-by: Johan Hovold &lt;johan@kernel.org&gt;
Reviewed-by: Benjamin Tissoires &lt;benjamin.tissoires@redhat.com&gt;
Signed-off-by: Jiri Kosina &lt;jkosina@suse.cz&gt;
</div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?h=nds-private-remove&amp;id=7a7b5df84b6b4e5d599c7289526eed96541a0654'>Diffstat</a> (limited to 'include/drm/drm_framebuffer.h')</div><table summary='diffstat' class='diffstat'>