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Diffstat (limited to 'fs/coda/dir.c')
-rw-r--r--fs/coda/dir.c149
1 files changed, 42 insertions, 107 deletions
diff --git a/fs/coda/dir.c b/fs/coda/dir.c
index 69fbbea75f1..96fbeab77f2 100644
--- a/fs/coda/dir.c
+++ b/fs/coda/dir.c
@@ -17,7 +17,6 @@
#include <linux/stat.h>
#include <linux/errno.h>
#include <linux/string.h>
-#include <linux/smp_lock.h>
#include <linux/spinlock.h>
#include <asm/uaccess.h>
@@ -117,15 +116,11 @@ static struct dentry *coda_lookup(struct inode *dir, struct dentry *entry, struc
goto exit;
}
- lock_kernel();
-
error = venus_lookup(dir->i_sb, coda_i2f(dir), name, length,
&type, &resfid);
if (!error)
error = coda_cnode_make(&inode, &resfid, dir->i_sb);
- unlock_kernel();
-
if (error && error != -ENOENT)
return ERR_PTR(error);
@@ -141,28 +136,24 @@ exit:
int coda_permission(struct inode *inode, int mask)
{
- int error = 0;
+ int error;
mask &= MAY_READ | MAY_WRITE | MAY_EXEC;
if (!mask)
- return 0;
+ return 0;
if ((mask & MAY_EXEC) && !execute_ok(inode))
return -EACCES;
- lock_kernel();
-
if (coda_cache_check(inode, mask))
- goto out;
+ return 0;
- error = venus_access(inode->i_sb, coda_i2f(inode), mask);
+ error = venus_access(inode->i_sb, coda_i2f(inode), mask);
if (!error)
coda_cache_enter(inode, mask);
- out:
- unlock_kernel();
return error;
}
@@ -201,41 +192,34 @@ static inline void coda_dir_drop_nlink(struct inode *dir)
/* creation routines: create, mknod, mkdir, link, symlink */
static int coda_create(struct inode *dir, struct dentry *de, int mode, struct nameidata *nd)
{
- int error=0;
+ int error;
const char *name=de->d_name.name;
int length=de->d_name.len;
struct inode *inode;
struct CodaFid newfid;
struct coda_vattr attrs;
- lock_kernel();
-
- if (coda_isroot(dir) && coda_iscontrol(name, length)) {
- unlock_kernel();
+ if (coda_isroot(dir) && coda_iscontrol(name, length))
return -EPERM;
- }
error = venus_create(dir->i_sb, coda_i2f(dir), name, length,
0, mode, &newfid, &attrs);
-
- if ( error ) {
- unlock_kernel();
- d_drop(de);
- return error;
- }
+ if (error)
+ goto err_out;
inode = coda_iget(dir->i_sb, &newfid, &attrs);
- if ( IS_ERR(inode) ) {
- unlock_kernel();
- d_drop(de);
- return PTR_ERR(inode);
+ if (IS_ERR(inode)) {
+ error = PTR_ERR(inode);
+ goto err_out;
}
/* invalidate the directory cnode's attributes */
coda_dir_update_mtime(dir);
- unlock_kernel();
d_instantiate(de, inode);
return 0;
+err_out:
+ d_drop(de);
+ return error;
}
static int coda_mkdir(struct inode *dir, struct dentry *de, int mode)
@@ -247,36 +231,29 @@ static int coda_mkdir(struct inode *dir, struct dentry *de, int mode)
int error;
struct CodaFid newfid;
- lock_kernel();
-
- if (coda_isroot(dir) && coda_iscontrol(name, len)) {
- unlock_kernel();
+ if (coda_isroot(dir) && coda_iscontrol(name, len))
return -EPERM;
- }
attrs.va_mode = mode;
error = venus_mkdir(dir->i_sb, coda_i2f(dir),
name, len, &newfid, &attrs);
-
- if ( error ) {
- unlock_kernel();
- d_drop(de);
- return error;
- }
+ if (error)
+ goto err_out;
inode = coda_iget(dir->i_sb, &newfid, &attrs);
- if ( IS_ERR(inode) ) {
- unlock_kernel();
- d_drop(de);
- return PTR_ERR(inode);
+ if (IS_ERR(inode)) {
+ error = PTR_ERR(inode);
+ goto err_out;
}
/* invalidate the directory cnode's attributes */
coda_dir_inc_nlink(dir);
coda_dir_update_mtime(dir);
- unlock_kernel();
d_instantiate(de, inode);
return 0;
+err_out:
+ d_drop(de);
+ return error;
}
/* try to make de an entry in dir_inodde linked to source_de */
@@ -288,52 +265,38 @@ static int coda_link(struct dentry *source_de, struct inode *dir_inode,
int len = de->d_name.len;
int error;
- lock_kernel();
-
- if (coda_isroot(dir_inode) && coda_iscontrol(name, len)) {
- unlock_kernel();
+ if (coda_isroot(dir_inode) && coda_iscontrol(name, len))
return -EPERM;
- }
error = venus_link(dir_inode->i_sb, coda_i2f(inode),
coda_i2f(dir_inode), (const char *)name, len);
-
if (error) {
d_drop(de);
- goto out;
+ return error;
}
coda_dir_update_mtime(dir_inode);
atomic_inc(&inode->i_count);
d_instantiate(de, inode);
inc_nlink(inode);
-
-out:
- unlock_kernel();
- return(error);
+ return 0;
}
static int coda_symlink(struct inode *dir_inode, struct dentry *de,
const char *symname)
{
- const char *name = de->d_name.name;
+ const char *name = de->d_name.name;
int len = de->d_name.len;
int symlen;
- int error = 0;
-
- lock_kernel();
+ int error;
- if (coda_isroot(dir_inode) && coda_iscontrol(name, len)) {
- unlock_kernel();
+ if (coda_isroot(dir_inode) && coda_iscontrol(name, len))
return -EPERM;
- }
symlen = strlen(symname);
- if ( symlen > CODA_MAXPATHLEN ) {
- unlock_kernel();
+ if (symlen > CODA_MAXPATHLEN)
return -ENAMETOOLONG;
- }
/*
* This entry is now negative. Since we do not create
@@ -344,10 +307,9 @@ static int coda_symlink(struct inode *dir_inode, struct dentry *de,
symname, symlen);
/* mtime is no good anymore */
- if ( !error )
+ if (!error)
coda_dir_update_mtime(dir_inode);
- unlock_kernel();
return error;
}
@@ -358,17 +320,12 @@ static int coda_unlink(struct inode *dir, struct dentry *de)
const char *name = de->d_name.name;
int len = de->d_name.len;
- lock_kernel();
-
error = venus_remove(dir->i_sb, coda_i2f(dir), name, len);
- if ( error ) {
- unlock_kernel();
+ if (error)
return error;
- }
coda_dir_update_mtime(dir);
drop_nlink(de->d_inode);
- unlock_kernel();
return 0;
}
@@ -378,8 +335,6 @@ static int coda_rmdir(struct inode *dir, struct dentry *de)
int len = de->d_name.len;
int error;
- lock_kernel();
-
error = venus_rmdir(dir->i_sb, coda_i2f(dir), name, len);
if (!error) {
/* VFS may delete the child */
@@ -390,7 +345,6 @@ static int coda_rmdir(struct inode *dir, struct dentry *de)
coda_dir_drop_nlink(dir);
coda_dir_update_mtime(dir);
}
- unlock_kernel();
return error;
}
@@ -404,15 +358,12 @@ static int coda_rename(struct inode *old_dir, struct dentry *old_dentry,
int new_length = new_dentry->d_name.len;
int error;
- lock_kernel();
-
error = venus_rename(old_dir->i_sb, coda_i2f(old_dir),
coda_i2f(new_dir), old_length, new_length,
(const char *) old_name, (const char *)new_name);
-
- if ( !error ) {
- if ( new_dentry->d_inode ) {
- if ( S_ISDIR(new_dentry->d_inode->i_mode) ) {
+ if (!error) {
+ if (new_dentry->d_inode) {
+ if (S_ISDIR(new_dentry->d_inode->i_mode)) {
coda_dir_drop_nlink(old_dir);
coda_dir_inc_nlink(new_dir);
}
@@ -424,8 +375,6 @@ static int coda_rename(struct inode *old_dir, struct dentry *old_dentry,
coda_flag_inode(new_dir, C_VATTR);
}
}
- unlock_kernel();
-
return error;
}
@@ -595,10 +544,7 @@ static int coda_dentry_revalidate(struct dentry *de, struct nameidata *nd)
struct inode *inode = de->d_inode;
struct coda_inode_info *cii;
- if (!inode)
- return 1;
- lock_kernel();
- if (coda_isroot(inode))
+ if (!inode || coda_isroot(inode))
goto out;
if (is_bad_inode(inode))
goto bad;
@@ -621,12 +567,9 @@ static int coda_dentry_revalidate(struct dentry *de, struct nameidata *nd)
spin_lock(&cii->c_lock);
cii->c_flags &= ~(C_VATTR | C_PURGE | C_FLUSH);
spin_unlock(&cii->c_lock);
-
bad:
- unlock_kernel();
return 0;
out:
- unlock_kernel();
return 1;
}
@@ -659,20 +602,19 @@ static int coda_dentry_delete(struct dentry * dentry)
int coda_revalidate_inode(struct dentry *dentry)
{
struct coda_vattr attr;
- int error = 0;
+ int error;
int old_mode;
ino_t old_ino;
struct inode *inode = dentry->d_inode;
struct coda_inode_info *cii = ITOC(inode);
- lock_kernel();
- if ( !cii->c_flags )
- goto ok;
+ if (!cii->c_flags)
+ return 0;
if (cii->c_flags & (C_VATTR | C_PURGE | C_FLUSH)) {
error = venus_getattr(inode->i_sb, &(cii->c_fid), &attr);
- if ( error )
- goto return_bad;
+ if (error)
+ return -EIO;
/* this inode may be lost if:
- it's ino changed
@@ -691,7 +633,7 @@ int coda_revalidate_inode(struct dentry *dentry)
/* the following can happen when a local fid is replaced
with a global one, here we lose and declare the inode bad */
if (inode->i_ino != old_ino)
- goto return_bad;
+ return -EIO;
coda_flag_inode_children(inode, C_FLUSH);
@@ -699,12 +641,5 @@ int coda_revalidate_inode(struct dentry *dentry)
cii->c_flags &= ~(C_VATTR | C_PURGE | C_FLUSH);
spin_unlock(&cii->c_lock);
}
-
-ok:
- unlock_kernel();
return 0;
-
-return_bad:
- unlock_kernel();
- return -EIO;
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-09 16:34:43 +0000