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authorNeilBrown <neilb@suse.de>2007-01-26 00:57:10 -0800
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-01-26 13:51:00 -0800
commita0ad13ef643a5829d63c456ab6143bbda60b44a9 (patch)
tree5c8b493fe6db72313eec7e3bf7581134d5f9b826 /fs
parent45f8bde0d0d6deb168b45998c72b4fbeb2f57efb (diff)
downloadop-kernel-dev-a0ad13ef643a5829d63c456ab6143bbda60b44a9.zip
op-kernel-dev-a0ad13ef643a5829d63c456ab6143bbda60b44a9.tar.gz
[PATCH] knfsd: Fix type mismatch with filldir_t used by nfsd
nfsd defines a type 'encode_dent_fn' which is much like 'filldir_t' except that the first pointer is 'struct readdir_cd *' rather than 'void *'. It then casts encode_dent_fn points to 'filldir_t' as needed. This hides any other type mismatches between the two such as the fact that the 'ino' arg recently changed from ino_t to u64. So: get rid of 'encode_dent_fn', get rid of the cast of the function type, change the first arg of various functions from 'struct readdir_cd *' to 'void *', and live with the fact that we have a little less type checking on the calling of these functions now. Less internal (to nfsd) checking offset by more external checking, which is more important. Thanks to Gabriel Paubert <paubert@iram.es> for discovering this and providing an initial patch. Signed-off-by: Gabriel Paubert <paubert@iram.es> Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs')
-rw-r--r--fs/nfsd/nfs3xdr.c9
-rw-r--r--fs/nfsd/nfs4xdr.c5
-rw-r--r--fs/nfsd/nfsxdr.c5
-rw-r--r--fs/nfsd/vfs.c4
4 files changed, 13 insertions, 10 deletions
diff --git a/fs/nfsd/nfs3xdr.c b/fs/nfsd/nfs3xdr.c
index 277df40..e695660 100644
--- a/fs/nfsd/nfs3xdr.c
+++ b/fs/nfsd/nfs3xdr.c
@@ -990,15 +990,16 @@ encode_entry(struct readdir_cd *ccd, const char *name,
}
int
-nfs3svc_encode_entry(struct readdir_cd *cd, const char *name,
- int namlen, loff_t offset, ino_t ino, unsigned int d_type)
+nfs3svc_encode_entry(void *cd, const char *name,
+ int namlen, loff_t offset, u64 ino, unsigned int d_type)
{
return encode_entry(cd, name, namlen, offset, ino, d_type, 0);
}
int
-nfs3svc_encode_entry_plus(struct readdir_cd *cd, const char *name,
- int namlen, loff_t offset, ino_t ino, unsigned int d_type)
+nfs3svc_encode_entry_plus(void *cd, const char *name,
+ int namlen, loff_t offset, u64 ino,
+ unsigned int d_type)
{
return encode_entry(cd, name, namlen, offset, ino, d_type, 1);
}
diff --git a/fs/nfsd/nfs4xdr.c b/fs/nfsd/nfs4xdr.c
index fea4636..18aa944 100644
--- a/fs/nfsd/nfs4xdr.c
+++ b/fs/nfsd/nfs4xdr.c
@@ -1880,9 +1880,10 @@ nfsd4_encode_rdattr_error(__be32 *p, int buflen, __be32 nfserr)
}
static int
-nfsd4_encode_dirent(struct readdir_cd *ccd, const char *name, int namlen,
- loff_t offset, ino_t ino, unsigned int d_type)
+nfsd4_encode_dirent(void *ccdv, const char *name, int namlen,
+ loff_t offset, u64 ino, unsigned int d_type)
{
+ struct readdir_cd *ccd = ccdv;
struct nfsd4_readdir *cd = container_of(ccd, struct nfsd4_readdir, common);
int buflen;
__be32 *p = cd->buffer;
diff --git a/fs/nfsd/nfsxdr.c b/fs/nfsd/nfsxdr.c
index f5243f9..6555c50 100644
--- a/fs/nfsd/nfsxdr.c
+++ b/fs/nfsd/nfsxdr.c
@@ -462,9 +462,10 @@ nfssvc_encode_statfsres(struct svc_rqst *rqstp, __be32 *p,
}
int
-nfssvc_encode_entry(struct readdir_cd *ccd, const char *name,
- int namlen, loff_t offset, ino_t ino, unsigned int d_type)
+nfssvc_encode_entry(void *ccdv, const char *name,
+ int namlen, loff_t offset, u64 ino, unsigned int d_type)
{
+ struct readdir_cd *ccd = ccdv;
struct nfsd_readdirres *cd = container_of(ccd, struct nfsd_readdirres, common);
__be32 *p = cd->buffer;
int buflen, slen;
diff --git a/fs/nfsd/vfs.c b/fs/nfsd/vfs.c
index 4dd49d6..5d32e5f 100644
--- a/fs/nfsd/vfs.c
+++ b/fs/nfsd/vfs.c
@@ -1716,7 +1716,7 @@ out:
*/
__be32
nfsd_readdir(struct svc_rqst *rqstp, struct svc_fh *fhp, loff_t *offsetp,
- struct readdir_cd *cdp, encode_dent_fn func)
+ struct readdir_cd *cdp, filldir_t func)
{
__be32 err;
int host_err;
@@ -1741,7 +1741,7 @@ nfsd_readdir(struct svc_rqst *rqstp, struct svc_fh *fhp, loff_t *offsetp,
do {
cdp->err = nfserr_eof; /* will be cleared on successful read */
- host_err = vfs_readdir(file, (filldir_t) func, cdp);
+ host_err = vfs_readdir(file, func, cdp);
} while (host_err >=0 && cdp->err == nfs_ok);
if (host_err)
err = nfserrno(host_err);
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