diff options
Diffstat (limited to 'fs/coda/upcall.c')
| -rw-r--r-- | fs/coda/upcall.c | 78 |
1 files changed, 55 insertions, 23 deletions
diff --git a/fs/coda/upcall.c b/fs/coda/upcall.c index 1175a1722411..15c0e4fdb0e3 100644 --- a/fs/coda/upcall.c +++ b/fs/coda/upcall.c @@ -33,7 +33,7 @@ #include <linux/vfs.h> #include <linux/coda.h> -#include <linux/coda_psdev.h> +#include "coda_psdev.h" #include "coda_linux.h" #include "coda_cache.h" @@ -46,7 +46,7 @@ static void *alloc_upcall(int opcode, int size) { union inputArgs *inp; - CODA_ALLOC(inp, union inputArgs *, size); + inp = kvzalloc(size, GFP_KERNEL); if (!inp) return ERR_PTR(-ENOMEM); @@ -85,7 +85,7 @@ int venus_rootfid(struct super_block *sb, struct CodaFid *fidp) if (!error) *fidp = outp->coda_root.VFid; - CODA_FREE(inp, insize); + kvfree(inp); return error; } @@ -104,7 +104,7 @@ int venus_getattr(struct super_block *sb, struct CodaFid *fid, if (!error) *attr = outp->coda_getattr.attr; - CODA_FREE(inp, insize); + kvfree(inp); return error; } @@ -123,7 +123,7 @@ int venus_setattr(struct super_block *sb, struct CodaFid *fid, error = coda_upcall(coda_vcp(sb), insize, &outsize, inp); - CODA_FREE(inp, insize); + kvfree(inp); return error; } @@ -153,7 +153,7 @@ int venus_lookup(struct super_block *sb, struct CodaFid *fid, *type = outp->coda_lookup.vtype; } - CODA_FREE(inp, insize); + kvfree(inp); return error; } @@ -173,7 +173,7 @@ int venus_close(struct super_block *sb, struct CodaFid *fid, int flags, error = coda_upcall(coda_vcp(sb), insize, &outsize, inp); - CODA_FREE(inp, insize); + kvfree(inp); return error; } @@ -194,7 +194,7 @@ int venus_open(struct super_block *sb, struct CodaFid *fid, if (!error) *fh = outp->coda_open_by_fd.fh; - CODA_FREE(inp, insize); + kvfree(inp); return error; } @@ -224,7 +224,7 @@ int venus_mkdir(struct super_block *sb, struct CodaFid *dirfid, *newfid = outp->coda_mkdir.VFid; } - CODA_FREE(inp, insize); + kvfree(inp); return error; } @@ -262,7 +262,7 @@ int venus_rename(struct super_block *sb, struct CodaFid *old_fid, error = coda_upcall(coda_vcp(sb), insize, &outsize, inp); - CODA_FREE(inp, insize); + kvfree(inp); return error; } @@ -295,7 +295,7 @@ int venus_create(struct super_block *sb, struct CodaFid *dirfid, *newfid = outp->coda_create.VFid; } - CODA_FREE(inp, insize); + kvfree(inp); return error; } @@ -318,7 +318,7 @@ int venus_rmdir(struct super_block *sb, struct CodaFid *dirfid, error = coda_upcall(coda_vcp(sb), insize, &outsize, inp); - CODA_FREE(inp, insize); + kvfree(inp); return error; } @@ -340,7 +340,7 @@ int venus_remove(struct super_block *sb, struct CodaFid *dirfid, error = coda_upcall(coda_vcp(sb), insize, &outsize, inp); - CODA_FREE(inp, insize); + kvfree(inp); return error; } @@ -370,7 +370,7 @@ int venus_readlink(struct super_block *sb, struct CodaFid *fid, *(buffer + retlen) = '\0'; } - CODA_FREE(inp, insize); + kvfree(inp); return error; } @@ -398,7 +398,7 @@ int venus_link(struct super_block *sb, struct CodaFid *fid, error = coda_upcall(coda_vcp(sb), insize, &outsize, inp); - CODA_FREE(inp, insize); + kvfree(inp); return error; } @@ -433,7 +433,7 @@ int venus_symlink(struct super_block *sb, struct CodaFid *fid, error = coda_upcall(coda_vcp(sb), insize, &outsize, inp); - CODA_FREE(inp, insize); + kvfree(inp); return error; } @@ -449,7 +449,7 @@ int venus_fsync(struct super_block *sb, struct CodaFid *fid) inp->coda_fsync.VFid = *fid; error = coda_upcall(coda_vcp(sb), insize, &outsize, inp); - CODA_FREE(inp, insize); + kvfree(inp); return error; } @@ -467,7 +467,7 @@ int venus_access(struct super_block *sb, struct CodaFid *fid, int mask) error = coda_upcall(coda_vcp(sb), insize, &outsize, inp); - CODA_FREE(inp, insize); + kvfree(inp); return error; } @@ -543,7 +543,7 @@ int venus_pioctl(struct super_block *sb, struct CodaFid *fid, } exit: - CODA_FREE(inp, insize); + kvfree(inp); return error; } @@ -553,7 +553,7 @@ int venus_statfs(struct dentry *dentry, struct kstatfs *sfs) union outputArgs *outp; int insize, outsize, error; - insize = max_t(unsigned int, INSIZE(statfs), OUTSIZE(statfs)); + insize = SIZE(statfs); UPARG(CODA_STATFS); error = coda_upcall(coda_vcp(dentry->d_sb), insize, &outsize, inp); @@ -565,7 +565,7 @@ int venus_statfs(struct dentry *dentry, struct kstatfs *sfs) sfs->f_ffree = outp->coda_statfs.stat.f_ffree; } - CODA_FREE(inp, insize); + kvfree(inp); return error; } @@ -743,7 +743,7 @@ static int coda_upcall(struct venus_comm *vcp, sig_req = kmalloc(sizeof(struct upc_req), GFP_KERNEL); if (!sig_req) goto exit; - CODA_ALLOC((sig_req->uc_data), char *, sizeof(struct coda_in_hdr)); + sig_req->uc_data = kvzalloc(sizeof(struct coda_in_hdr), GFP_KERNEL); if (!sig_req->uc_data) { kfree(sig_req); goto exit; @@ -804,12 +804,44 @@ exit: * * CODA_REPLACE -- replace one CodaFid with another throughout the name cache */ -int coda_downcall(struct venus_comm *vcp, int opcode, union outputArgs *out) +int coda_downcall(struct venus_comm *vcp, int opcode, union outputArgs *out, + size_t nbytes) { struct inode *inode = NULL; struct CodaFid *fid = NULL, *newfid; struct super_block *sb; + /* + * Make sure we have received enough data from the cache + * manager to populate the necessary fields in the buffer + */ + switch (opcode) { + case CODA_PURGEUSER: + if (nbytes < sizeof(struct coda_purgeuser_out)) + return -EINVAL; + break; + + case CODA_ZAPDIR: + if (nbytes < sizeof(struct coda_zapdir_out)) + return -EINVAL; + break; + + case CODA_ZAPFILE: + if (nbytes < sizeof(struct coda_zapfile_out)) + return -EINVAL; + break; + + case CODA_PURGEFID: + if (nbytes < sizeof(struct coda_purgefid_out)) + return -EINVAL; + break; + + case CODA_REPLACE: + if (nbytes < sizeof(struct coda_replace_out)) + return -EINVAL; + break; + } + /* Handle invalidation requests. */ mutex_lock(&vcp->vc_mutex); sb = vcp->vc_sb; |