diff options
author | Al Viro <viro@zeniv.linux.org.uk> | 2012-01-10 17:11:49 +0100 |
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committer | Al Viro <viro@zeniv.linux.org.uk> | 2012-01-10 17:13:16 +0100 |
commit | f4947fbce208990266920d51837e4e7ba9779db1 (patch) | |
tree | a541edc5de897ce03f54d83c1a1c8147ce22b605 /fs/coda | |
parent | coda: deal correctly with allocation failure from coda_cnode_makectl() (diff) | |
download | linux-f4947fbce208990266920d51837e4e7ba9779db1.tar.xz linux-f4947fbce208990266920d51837e4e7ba9779db1.zip |
coda: switch coda_cnode_make() to sane API as well, clean coda_lookup()
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'fs/coda')
-rw-r--r-- | fs/coda/cnode.c | 17 | ||||
-rw-r--r-- | fs/coda/coda_fs_i.h | 2 | ||||
-rw-r--r-- | fs/coda/dir.c | 29 | ||||
-rw-r--r-- | fs/coda/inode.c | 10 |
4 files changed, 27 insertions, 31 deletions
diff --git a/fs/coda/cnode.c b/fs/coda/cnode.c index 8af67c9c47dd..911cf30d057d 100644 --- a/fs/coda/cnode.c +++ b/fs/coda/cnode.c @@ -88,24 +88,21 @@ struct inode * coda_iget(struct super_block * sb, struct CodaFid * fid, - link the two up if this is needed - fill in the attributes */ -int coda_cnode_make(struct inode **inode, struct CodaFid *fid, struct super_block *sb) +struct inode *coda_cnode_make(struct CodaFid *fid, struct super_block *sb) { struct coda_vattr attr; + struct inode *inode; int error; /* We get inode numbers from Venus -- see venus source */ error = venus_getattr(sb, fid, &attr); - if ( error ) { - *inode = NULL; - return error; - } + if (error) + return ERR_PTR(error); - *inode = coda_iget(sb, fid, &attr); - if ( IS_ERR(*inode) ) { + inode = coda_iget(sb, fid, &attr); + if (IS_ERR(inode)) printk("coda_cnode_make: coda_iget failed\n"); - return PTR_ERR(*inode); - } - return 0; + return inode; } diff --git a/fs/coda/coda_fs_i.h b/fs/coda/coda_fs_i.h index 1c17446f1afe..b24fdfd8a3f0 100644 --- a/fs/coda/coda_fs_i.h +++ b/fs/coda/coda_fs_i.h @@ -49,7 +49,7 @@ struct coda_file_info { #define C_DYING 0x4 /* from venus (which died) */ #define C_PURGE 0x8 -int coda_cnode_make(struct inode **, struct CodaFid *, struct super_block *); +struct inode *coda_cnode_make(struct CodaFid *, struct super_block *); struct inode *coda_iget(struct super_block *sb, struct CodaFid *fid, struct coda_vattr *attr); struct inode *coda_cnode_makectl(struct super_block *sb); struct inode *coda_fid_to_inode(struct CodaFid *fid, struct super_block *sb); diff --git a/fs/coda/dir.c b/fs/coda/dir.c index df0f9c1b01d3..177515829062 100644 --- a/fs/coda/dir.c +++ b/fs/coda/dir.c @@ -96,12 +96,11 @@ const struct file_operations coda_dir_operations = { /* access routines: lookup, readlink, permission */ static struct dentry *coda_lookup(struct inode *dir, struct dentry *entry, struct nameidata *nd) { - struct inode *inode = NULL; - struct CodaFid resfid = { { 0, } }; - int type = 0; - int error = 0; + struct super_block *sb = dir->i_sb; const char *name = entry->d_name.name; size_t length = entry->d_name.len; + struct inode *inode; + int type = 0; if (length > CODA_MAXNAMLEN) { printk(KERN_ERR "name too long: lookup, %s (%*s)\n", @@ -111,23 +110,21 @@ static struct dentry *coda_lookup(struct inode *dir, struct dentry *entry, struc /* control object, create inode on the fly */ if (coda_isroot(dir) && coda_iscontrol(name, length)) { - inode = coda_cnode_makectl(dir->i_sb); + inode = coda_cnode_makectl(sb); type = CODA_NOCACHE; - goto exit; + } else { + struct CodaFid fid = { { 0, } }; + int error = venus_lookup(sb, coda_i2f(dir), name, length, + &type, &fid); + inode = !error ? coda_cnode_make(&fid, sb) : ERR_PTR(error); } - error = venus_lookup(dir->i_sb, coda_i2f(dir), name, length, - &type, &resfid); - if (!error) - error = coda_cnode_make(&inode, &resfid, dir->i_sb); - - if (error && error != -ENOENT) - return ERR_PTR(error); - -exit: - if (inode && !IS_ERR(inode) && (type & CODA_NOCACHE)) + if (!IS_ERR(inode) && (type & CODA_NOCACHE)) coda_flag_inode(inode, C_VATTR | C_PURGE); + if (inode == ERR_PTR(-ENOENT)) + inode = NULL; + return d_splice_alias(inode, entry); } diff --git a/fs/coda/inode.c b/fs/coda/inode.c index 1c08a8cd673a..5e2e1b3f068d 100644 --- a/fs/coda/inode.c +++ b/fs/coda/inode.c @@ -204,10 +204,12 @@ static int coda_fill_super(struct super_block *sb, void *data, int silent) printk("coda_read_super: rootfid is %s\n", coda_f2s(&fid)); /* make root inode */ - error = coda_cnode_make(&root, &fid, sb); - if ( error || !root ) { - printk("Failure of coda_cnode_make for root: error %d\n", error); - goto error; + root = coda_cnode_make(&fid, sb); + if (IS_ERR(root)) { + error = PTR_ERR(root); + printk("Failure of coda_cnode_make for root: error %d\n", error); + root = NULL; + goto error; } printk("coda_read_super: rootinode is %ld dev %s\n", |