simply don't hash the inodes that don't have real inumber instead of
skipping them during iget5_locked(); as the result, simple iget_locked()
would do and we can get rid of cramfs ->drop_inode() as well.
Signed-off-by: Al Viro <viro@xxxxxxxxxxxxxxxxxx>
---
fs/cramfs/inode.c | 88 +++++++++++++++++++++++------------------------------
1 files changed, 38 insertions(+), 50 deletions(-)
diff --git a/fs/cramfs/inode.c b/fs/cramfs/inode.c
index dd3634e..a53b130 100644
--- a/fs/cramfs/inode.c
+++ b/fs/cramfs/inode.c
@@ -39,66 +39,55 @@ static DEFINE_MUTEX(read_mutex);
#define CRAMINO(x) (((x)->offset && (x)->size)?(x)->offset<<2:1)
#define OFFSET(x) ((x)->i_ino)
-
-static int cramfs_iget5_test(struct inode *inode, void *opaque)
-{
- struct cramfs_inode *cramfs_inode = opaque;
- return inode->i_ino == CRAMINO(cramfs_inode) && inode->i_ino != 1;
-}
-
-static int cramfs_iget5_set(struct inode *inode, void *opaque)
+static void setup_inode(struct inode *inode, struct cramfs_inode * cramfs_inode)
{
- struct cramfs_inode *cramfs_inode = opaque;
- inode->i_ino = CRAMINO(cramfs_inode);
- return 0;
+ static struct timespec zerotime;
+ inode->i_mode = cramfs_inode->mode;
+ inode->i_uid = cramfs_inode->uid;
+ inode->i_size = cramfs_inode->size;
+ inode->i_blocks = (cramfs_inode->size - 1) / 512 + 1;
+ inode->i_gid = cramfs_inode->gid;
+ /* Struct copy intentional */
+ inode->i_mtime = inode->i_atime = inode->i_ctime = zerotime;
+ /* inode->i_nlink is left 1 - arguably wrong for directories,
+ but it's the best we can do without reading the directory
+ contents. 1 yields the right result in GNU find, even
+ without -noleaf option. */
+ if (S_ISREG(inode->i_mode)) {
+ inode->i_fop = &generic_ro_fops;
+ inode->i_data.a_ops = &cramfs_aops;
+ } else if (S_ISDIR(inode->i_mode)) {
+ inode->i_op = &cramfs_dir_inode_operations;
+ inode->i_fop = &cramfs_directory_operations;
+ } else if (S_ISLNK(inode->i_mode)) {
+ inode->i_op = &page_symlink_inode_operations;
+ inode->i_data.a_ops = &cramfs_aops;
+ } else {
+ init_special_inode(inode, inode->i_mode,
+ old_decode_dev(cramfs_inode->size));
+ }
}
static struct inode *get_cramfs_inode(struct super_block *sb,
struct cramfs_inode * cramfs_inode)
{
- struct inode *inode = iget5_locked(sb, CRAMINO(cramfs_inode),
- cramfs_iget5_test, cramfs_iget5_set,
- cramfs_inode);
- static struct timespec zerotime;
-
- if (inode && (inode->i_state & I_NEW)) {
- inode->i_mode = cramfs_inode->mode;
- inode->i_uid = cramfs_inode->uid;
- inode->i_size = cramfs_inode->size;
- inode->i_blocks = (cramfs_inode->size - 1) / 512 + 1;
- inode->i_gid = cramfs_inode->gid;
- /* Struct copy intentional */
- inode->i_mtime = inode->i_atime = inode->i_ctime = zerotime;
- /* inode->i_nlink is left 1 - arguably wrong for directories,
- but it's the best we can do without reading the directory
- contents. 1 yields the right result in GNU find, even
- without -noleaf option. */
- if (S_ISREG(inode->i_mode)) {
- inode->i_fop = &generic_ro_fops;
- inode->i_data.a_ops = &cramfs_aops;
- } else if (S_ISDIR(inode->i_mode)) {
- inode->i_op = &cramfs_dir_inode_operations;
- inode->i_fop = &cramfs_directory_operations;
- } else if (S_ISLNK(inode->i_mode)) {
- inode->i_op = &page_symlink_inode_operations;
- inode->i_data.a_ops = &cramfs_aops;
- } else {
- init_special_inode(inode, inode->i_mode,
- old_decode_dev(cramfs_inode->size));
+ struct inode *inode;
+ if (CRAMINO(cramfs_inode) == 1) {
+ inode = new_inode(sb);
+ if (inode) {
+ inode->i_ino = 1;
+ setup_inode(inode, cramfs_inode);
+ }
+ } else {
+ inode = iget_locked(sb, CRAMINO(cramfs_inode));
+ if (inode) {
+ setup_inode(inode, cramfs_inode);
+ unlock_new_inode(inode);
}
- unlock_new_inode(inode);
}
return inode;
}
-static void cramfs_drop_inode(struct inode *inode)
-{
- if (inode->i_ino == 1)
- generic_delete_inode(inode);
- else
- generic_drop_inode(inode);
-}
-
/*
* We have our own block cache: don't fill up the buffer cache
* with the rom-image, because the way the filesystem is set
@@ -542,7 +531,6 @@ static const struct super_operations cramfs_ops = {
.put_super = cramfs_put_super,
.remount_fs = cramfs_remount,
.statfs = cramfs_statfs,
- .drop_inode = cramfs_drop_inode,
};
static int cramfs_get_sb(struct file_system_type *fs_type,
--
1.5.6.5
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