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| author | Christoph Hellwig <hch@infradead.org> | 2013-11-20 00:24:11 -0800 |
|---|---|---|
| committer | J. Bruce Fields <bfields@redhat.com> | 2013-12-10 20:37:47 -0500 |
| commit | 2d8498dbf8041c51ca49a0be6be594501638e591 (patch) | |
| tree | daa52e13c7a54b95ed3e56c80df549af188908ad /fs/nfsd | |
| parent | 6e14b46b91fee8a049b0940333ce13a820beaaa5 (diff) | |
| download | linux-2d8498dbf8041c51ca49a0be6be594501638e591.tar.bz2 | |
nfsd: start documenting some XDR handling functions
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Diffstat (limited to 'fs/nfsd')
| -rw-r--r-- | fs/nfsd/nfs4xdr.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/fs/nfsd/nfs4xdr.c b/fs/nfsd/nfs4xdr.c index ee7237f99f54..79754139ccdf 100644 --- a/fs/nfsd/nfs4xdr.c +++ b/fs/nfsd/nfs4xdr.c @@ -190,6 +190,15 @@ static int zero_clientid(clientid_t *clid) return (clid->cl_boot == 0) && (clid->cl_id == 0); } +/** + * defer_free - mark an allocation as deferred freed + * @argp: NFSv4 compound argument structure to be freed with + * @release: release callback to free @p, typically kfree() + * @p: pointer to be freed + * + * Marks @p to be freed when processing the compound operation + * described in @argp finishes. + */ static int defer_free(struct nfsd4_compoundargs *argp, void (*release)(const void *), void *p) @@ -206,6 +215,16 @@ defer_free(struct nfsd4_compoundargs *argp, return 0; } +/** + * savemem - duplicate a chunk of memory for later processing + * @argp: NFSv4 compound argument structure to be freed with + * @p: pointer to be duplicated + * @nbytes: length to be duplicated + * + * Returns a pointer to a copy of @nbytes bytes of memory at @p + * that are preserved until processing of the NFSv4 compound + * operation described by @argp finishes. + */ static char *savemem(struct nfsd4_compoundargs *argp, __be32 *p, int nbytes) { if (p == argp->tmp) { |