forked from luck/tmp_suning_uos_patched
docbook: add idr/ida to kernel-api docbook
Add idr/ida to kernel-api docbook. Fix typos and kernel-doc notation. Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Acked-by: Tejun Heo <tj@kernel.org> Cc: Naohiro Aota <naota@elisp.net> Cc: Jiri Kosina <jkosina@suse.cz> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Randy Dunlap
Linus Torvalds
parent
ee2f154a59
commit
56083ab17e
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@ -93,6 +93,12 @@ X!Ilib/string.c
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!Elib/crc32.c
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!Elib/crc-ccitt.c
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</sect1>
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<sect1 id="idr"><title>idr/ida Functions</title>
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!Pinclude/linux/idr.h idr sync
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!Plib/idr.c IDA description
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!Elib/idr.c
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</sect1>
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</chapter>
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<chapter id="mm">
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@ -81,6 +81,7 @@ struct idr {
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#define _idr_rc_to_errno(rc) ((rc) == -1 ? -EAGAIN : -ENOSPC)
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/**
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* DOC: idr sync
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* idr synchronization (stolen from radix-tree.h)
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*
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* idr_find() is able to be called locklessly, using RCU. The caller must
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49
lib/idr.c
49
lib/idr.c
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@ -106,7 +106,7 @@ static void idr_mark_full(struct idr_layer **pa, int id)
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}
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/**
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* idr_pre_get - reserver resources for idr allocation
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* idr_pre_get - reserve resources for idr allocation
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* @idp: idr handle
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* @gfp_mask: memory allocation flags
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*
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@ -115,8 +115,8 @@ static void idr_mark_full(struct idr_layer **pa, int id)
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* caller should pass in GFP_KERNEL if possible. This of course requires that
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* no spinning locks be held.
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*
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* If the system is REALLY out of memory this function returns 0,
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* otherwise 1.
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* If the system is REALLY out of memory this function returns %0,
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* otherwise %1.
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*/
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int idr_pre_get(struct idr *idp, gfp_t gfp_mask)
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{
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@ -292,12 +292,12 @@ static int idr_get_new_above_int(struct idr *idp, void *ptr, int starting_id)
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* required locks.
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*
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* If allocation from IDR's private freelist fails, idr_get_new_above() will
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* return -EAGAIN. The caller should retry the idr_pre_get() call to refill
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* return %-EAGAIN. The caller should retry the idr_pre_get() call to refill
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* IDR's preallocation and then retry the idr_get_new_above() call.
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*
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* If the idr is full idr_get_new_above() will return -ENOSPC.
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* If the idr is full idr_get_new_above() will return %-ENOSPC.
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*
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* @id returns a value in the range @starting_id ... 0x7fffffff
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* @id returns a value in the range @starting_id ... %0x7fffffff
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*/
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int idr_get_new_above(struct idr *idp, void *ptr, int starting_id, int *id)
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{
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@ -322,12 +322,12 @@ EXPORT_SYMBOL(idr_get_new_above);
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* @id: pointer to the allocated handle
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*
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* If allocation from IDR's private freelist fails, idr_get_new_above() will
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* return -EAGAIN. The caller should retry the idr_pre_get() call to refill
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* return %-EAGAIN. The caller should retry the idr_pre_get() call to refill
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* IDR's preallocation and then retry the idr_get_new_above() call.
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*
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* If the idr is full idr_get_new_above() will return -ENOSPC.
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* If the idr is full idr_get_new_above() will return %-ENOSPC.
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*
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* @id returns a value in the range 0 ... 0x7fffffff
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* @id returns a value in the range %0 ... %0x7fffffff
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*/
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int idr_get_new(struct idr *idp, void *ptr, int *id)
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{
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@ -390,7 +390,7 @@ static void sub_remove(struct idr *idp, int shift, int id)
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}
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/**
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* idr_remove - remove the given id and free it's slot
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* idr_remove - remove the given id and free its slot
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* @idp: idr handle
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* @id: unique key
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*/
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@ -439,7 +439,7 @@ EXPORT_SYMBOL(idr_remove);
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* function will remove all id mappings and leave all idp_layers
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* unused.
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*
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* A typical clean-up sequence for objects stored in an idr tree, will
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* A typical clean-up sequence for objects stored in an idr tree will
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* use idr_for_each() to free all objects, if necessay, then
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* idr_remove_all() to remove all ids, and idr_destroy() to free
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* up the cached idr_layers.
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@ -544,7 +544,7 @@ EXPORT_SYMBOL(idr_find);
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* not allowed.
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*
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* We check the return of @fn each time. If it returns anything other
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* than 0, we break out and return that value.
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* than %0, we break out and return that value.
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*
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* The caller must serialize idr_for_each() vs idr_get_new() and idr_remove().
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*/
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@ -639,8 +639,8 @@ EXPORT_SYMBOL(idr_get_next);
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* @id: lookup key
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*
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* Replace the pointer registered with an id and return the old value.
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* A -ENOENT return indicates that @id was not found.
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* A -EINVAL return indicates that @id was not within valid constraints.
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* A %-ENOENT return indicates that @id was not found.
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* A %-EINVAL return indicates that @id was not within valid constraints.
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*
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* The caller must serialize with writers.
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*/
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@ -698,10 +698,11 @@ void idr_init(struct idr *idp)
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EXPORT_SYMBOL(idr_init);
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/*
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/**
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* DOC: IDA description
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* IDA - IDR based ID allocator
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*
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* this is id allocator without id -> pointer translation. Memory
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* This is id allocator without id -> pointer translation. Memory
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* usage is much lower than full blown idr because each id only
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* occupies a bit. ida uses a custom leaf node which contains
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* IDA_BITMAP_BITS slots.
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@ -734,8 +735,8 @@ static void free_bitmap(struct ida *ida, struct ida_bitmap *bitmap)
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* following function. It preallocates enough memory to satisfy the
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* worst possible allocation.
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*
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* If the system is REALLY out of memory this function returns 0,
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* otherwise 1.
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* If the system is REALLY out of memory this function returns %0,
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* otherwise %1.
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*/
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int ida_pre_get(struct ida *ida, gfp_t gfp_mask)
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{
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@ -767,11 +768,11 @@ EXPORT_SYMBOL(ida_pre_get);
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* Allocate new ID above or equal to @ida. It should be called with
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* any required locks.
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*
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* If memory is required, it will return -EAGAIN, you should unlock
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* If memory is required, it will return %-EAGAIN, you should unlock
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* and go back to the ida_pre_get() call. If the ida is full, it will
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* return -ENOSPC.
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* return %-ENOSPC.
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*
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* @p_id returns a value in the range @starting_id ... 0x7fffffff.
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* @p_id returns a value in the range @starting_id ... %0x7fffffff.
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*/
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int ida_get_new_above(struct ida *ida, int starting_id, int *p_id)
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{
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@ -853,11 +854,11 @@ EXPORT_SYMBOL(ida_get_new_above);
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*
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* Allocate new ID. It should be called with any required locks.
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*
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* If memory is required, it will return -EAGAIN, you should unlock
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* If memory is required, it will return %-EAGAIN, you should unlock
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* and go back to the idr_pre_get() call. If the idr is full, it will
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* return -ENOSPC.
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* return %-ENOSPC.
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*
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* @id returns a value in the range 0 ... 0x7fffffff.
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* @id returns a value in the range %0 ... %0x7fffffff.
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*/
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int ida_get_new(struct ida *ida, int *p_id)
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{
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