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9pfs/9p.c: convert Doxygen -> kerneldoc format
API doc comments in QEMU are supposed to be in kerneldoc format, so convert API doc comments from Doxygen format to kerneldoc format. Signed-off-by: Christian Schoenebeck <qemu_oss@crudebyte.com> Reviewed-by: Greg Kurz <groug@kaod.org> Message-Id: <4ece6ffa4465c271c6a7c42a3040f42780fcce87.1646314856.git.qemu_oss@crudebyte.com>
This commit is contained in:
Christian Schoenebeck
parent
1a7f240014
commit
e16fea4156
62
hw/9pfs/9p.c
62
hw/9pfs/9p.c
@ -628,8 +628,8 @@ static inline uint64_t mirror64bit(uint64_t value)
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((uint64_t)mirror8bit((value >> 56) & 0xff));
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}
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/**
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* @brief Parameter k for the Exponential Golomb algorihm to be used.
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/*
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* Parameter k for the Exponential Golomb algorihm to be used.
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*
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* The smaller this value, the smaller the minimum bit count for the Exp.
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* Golomb generated affixes will be (at lowest index) however for the
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@ -642,28 +642,30 @@ static inline uint64_t mirror64bit(uint64_t value)
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* should be small, for a large amount of devices k might be increased
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* instead. The default of k=0 should be fine for most users though.
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*
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* @b IMPORTANT: In case this ever becomes a runtime parameter; the value of
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* IMPORTANT: In case this ever becomes a runtime parameter; the value of
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* k should not change as long as guest is still running! Because that would
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* cause completely different inode numbers to be generated on guest.
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*/
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#define EXP_GOLOMB_K 0
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/**
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* @brief Exponential Golomb algorithm for arbitrary k (including k=0).
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* expGolombEncode() - Exponential Golomb algorithm for arbitrary k
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* (including k=0).
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*
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* The Exponential Golomb algorithm generates @b prefixes (@b not suffixes!)
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* @n: natural number (or index) of the prefix to be generated
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* (1, 2, 3, ...)
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* @k: parameter k of Exp. Golomb algorithm to be used
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* (see comment on EXP_GOLOMB_K macro for details about k)
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* Return: prefix for given @n and @k
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*
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* The Exponential Golomb algorithm generates prefixes (NOT suffixes!)
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* with growing length and with the mathematical property of being
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* "prefix-free". The latter means the generated prefixes can be prepended
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* in front of arbitrary numbers and the resulting concatenated numbers are
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* guaranteed to be always unique.
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*
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* This is a minor adjustment to the original Exp. Golomb algorithm in the
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* sense that lowest allowed index (@param n) starts with 1, not with zero.
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*
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* @param n - natural number (or index) of the prefix to be generated
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* (1, 2, 3, ...)
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* @param k - parameter k of Exp. Golomb algorithm to be used
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* (see comment on EXP_GOLOMB_K macro for details about k)
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* sense that lowest allowed index (@n) starts with 1, not with zero.
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*/
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static VariLenAffix expGolombEncode(uint64_t n, int k)
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{
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@ -677,7 +679,9 @@ static VariLenAffix expGolombEncode(uint64_t n, int k)
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}
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/**
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* @brief Converts a suffix into a prefix, or a prefix into a suffix.
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* invertAffix() - Converts a suffix into a prefix, or a prefix into a suffix.
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* @affix: either suffix or prefix to be inverted
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* Return: inversion of passed @affix
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*
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* Simply mirror all bits of the affix value, for the purpose to preserve
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* respectively the mathematical "prefix-free" or "suffix-free" property
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@ -701,16 +705,16 @@ static VariLenAffix invertAffix(const VariLenAffix *affix)
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}
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/**
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* @brief Generates suffix numbers with "suffix-free" property.
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* affixForIndex() - Generates suffix numbers with "suffix-free" property.
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* @index: natural number (or index) of the suffix to be generated
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* (1, 2, 3, ...)
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* Return: Suffix suitable to assemble unique number.
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*
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* This is just a wrapper function on top of the Exp. Golomb algorithm.
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*
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* Since the Exp. Golomb algorithm generates prefixes, but we need suffixes,
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* this function converts the Exp. Golomb prefixes into appropriate suffixes
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* which are still suitable for generating unique numbers.
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*
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* @param n - natural number (or index) of the suffix to be generated
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* (1, 2, 3, ...)
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*/
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static VariLenAffix affixForIndex(uint64_t index)
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{
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@ -810,8 +814,8 @@ static int qid_inode_prefix_hash_bits(V9fsPDU *pdu, dev_t dev)
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return val->prefix_bits;
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}
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/**
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* @brief Slow / full mapping host inode nr -> guest inode nr.
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/*
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* Slow / full mapping host inode nr -> guest inode nr.
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*
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* This function performs a slower and much more costly remapping of an
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* original file inode number on host to an appropriate different inode
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@ -823,7 +827,7 @@ static int qid_inode_prefix_hash_bits(V9fsPDU *pdu, dev_t dev)
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* qid_path_suffixmap() failed. In practice this slow / full mapping is not
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* expected ever to be used at all though.
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*
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* @see qid_path_suffixmap() for details
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* See qid_path_suffixmap() for details
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*
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*/
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static int qid_path_fullmap(V9fsPDU *pdu, const struct stat *stbuf,
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@ -864,8 +868,8 @@ static int qid_path_fullmap(V9fsPDU *pdu, const struct stat *stbuf,
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return 0;
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}
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/**
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* @brief Quick mapping host inode nr -> guest inode nr.
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/*
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* Quick mapping host inode nr -> guest inode nr.
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*
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* This function performs quick remapping of an original file inode number
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* on host to an appropriate different inode number on guest. This remapping
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@ -1281,12 +1285,15 @@ static int coroutine_fn stat_to_v9stat(V9fsPDU *pdu, V9fsPath *path,
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/**
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* Convert host filesystem's block size into an appropriate block size for
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* 9p client (guest OS side). The value returned suggests an "optimum" block
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* size for 9p I/O, i.e. to maximize performance.
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* blksize_to_iounit() - Block size exposed to 9p client.
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* Return: block size
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*
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* @pdu: 9p client request
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* @blksize: host filesystem's block size
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*
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* Convert host filesystem's block size into an appropriate block size for
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* 9p client (guest OS side). The value returned suggests an "optimum" block
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* size for 9p I/O, i.e. to maximize performance.
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*/
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static int32_t blksize_to_iounit(const V9fsPDU *pdu, int32_t blksize)
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{
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@ -2398,10 +2405,11 @@ out_nofid:
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}
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/**
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* Returns size required in Rreaddir response for the passed dirent @p name.
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* v9fs_readdir_response_size() - Returns size required in Rreaddir response
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* for the passed dirent @name.
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*
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* @param name - directory entry's name (i.e. file name, directory name)
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* @returns required size in bytes
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* @name: directory entry's name (i.e. file name, directory name)
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* Return: required size in bytes
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*/
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size_t v9fs_readdir_response_size(V9fsString *name)
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{
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