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authorMiklos Szeredi <miklos@szeredi.hu>2005-09-07 02:18:22 +0400
committerLinus Torvalds <torvalds@g5.osdl.org>2005-09-08 03:57:43 +0400
commit0494f6ec5d3a015d53b57e37280b93c19446676a (patch)
treeb48855ab886d962d50807047eeff086ee50b882a /fs/proc
parent09dd17d3e5e43ea6d3f3a12829108c4ca13ff810 (diff)
downloadlinux-0494f6ec5d3a015d53b57e37280b93c19446676a.tar.xz
[PATCH] use get_fs_struct() in proc
This patch cleans up proc_cwd_link() and proc_root_link() by factoring out common code into get_fs_struct(). Signed-off-by: Miklos Szeredi <miklos@szeredi.hu> Cc: <viro@parcelfarce.linux.theplanet.co.uk> Cc: Christoph Hellwig <hch@lst.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'fs/proc')
-rw-r--r--fs/proc/base.c23
1 files changed, 12 insertions, 11 deletions
diff --git a/fs/proc/base.c b/fs/proc/base.c
index 520978e49e92..73b1e94171b7 100644
--- a/fs/proc/base.c
+++ b/fs/proc/base.c
@@ -297,15 +297,21 @@ static int proc_fd_link(struct inode *inode, struct dentry **dentry, struct vfsm
return -ENOENT;
}
-static int proc_cwd_link(struct inode *inode, struct dentry **dentry, struct vfsmount **mnt)
+static struct fs_struct *get_fs_struct(struct task_struct *task)
{
struct fs_struct *fs;
- int result = -ENOENT;
- task_lock(proc_task(inode));
- fs = proc_task(inode)->fs;
+ task_lock(task);
+ fs = task->fs;
if(fs)
atomic_inc(&fs->count);
- task_unlock(proc_task(inode));
+ task_unlock(task);
+ return fs;
+}
+
+static int proc_cwd_link(struct inode *inode, struct dentry **dentry, struct vfsmount **mnt)
+{
+ struct fs_struct *fs = get_fs_struct(proc_task(inode));
+ int result = -ENOENT;
if (fs) {
read_lock(&fs->lock);
*mnt = mntget(fs->pwdmnt);
@@ -319,13 +325,8 @@ static int proc_cwd_link(struct inode *inode, struct dentry **dentry, struct vfs
static int proc_root_link(struct inode *inode, struct dentry **dentry, struct vfsmount **mnt)
{
- struct fs_struct *fs;
+ struct fs_struct *fs = get_fs_struct(proc_task(inode));
int result = -ENOENT;
- task_lock(proc_task(inode));
- fs = proc_task(inode)->fs;
- if(fs)
- atomic_inc(&fs->count);
- task_unlock(proc_task(inode));
if (fs) {
read_lock(&fs->lock);
*mnt = mntget(fs->rootmnt);