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author | Chris Metcalf <cmetcalf@tilera.com> | 2010-08-13 19:59:15 -0400 |
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committer | Chris Metcalf <cmetcalf@tilera.com> | 2010-08-13 19:59:15 -0400 |
commit | 7d72e6fa56c4100b9669efe0044f77ed9eb785a1 (patch) | |
tree | 5e90bf4969809a1ab20b97432b85be20ccfaa1f4 /fs/proc/base.c | |
parent | ba00376b0b13f234d839541a7b36a5bf5c2a4036 (diff) | |
parent | 2be1f3a73dd02e38e181cf5abacb3d45a6a2d6b8 (diff) | |
download | talos-op-linux-7d72e6fa56c4100b9669efe0044f77ed9eb785a1.tar.gz talos-op-linux-7d72e6fa56c4100b9669efe0044f77ed9eb785a1.zip |
Merge branch 'master' into for-linus
Diffstat (limited to 'fs/proc/base.c')
-rw-r--r-- | fs/proc/base.c | 24 |
1 files changed, 12 insertions, 12 deletions
diff --git a/fs/proc/base.c b/fs/proc/base.c index c806dfb24e08..a1c43e7c8a7b 100644 --- a/fs/proc/base.c +++ b/fs/proc/base.c @@ -149,18 +149,13 @@ static unsigned int pid_entry_count_dirs(const struct pid_entry *entries, return count; } -static int get_fs_path(struct task_struct *task, struct path *path, bool root) +static int get_task_root(struct task_struct *task, struct path *root) { - struct fs_struct *fs; int result = -ENOENT; task_lock(task); - fs = task->fs; - if (fs) { - read_lock(&fs->lock); - *path = root ? fs->root : fs->pwd; - path_get(path); - read_unlock(&fs->lock); + if (task->fs) { + get_fs_root(task->fs, root); result = 0; } task_unlock(task); @@ -173,7 +168,12 @@ static int proc_cwd_link(struct inode *inode, struct path *path) int result = -ENOENT; if (task) { - result = get_fs_path(task, path, 0); + task_lock(task); + if (task->fs) { + get_fs_pwd(task->fs, path); + result = 0; + } + task_unlock(task); put_task_struct(task); } return result; @@ -185,7 +185,7 @@ static int proc_root_link(struct inode *inode, struct path *path) int result = -ENOENT; if (task) { - result = get_fs_path(task, path, 1); + result = get_task_root(task, path); put_task_struct(task); } return result; @@ -597,7 +597,7 @@ static int mounts_open_common(struct inode *inode, struct file *file, get_mnt_ns(ns); } rcu_read_unlock(); - if (ns && get_fs_path(task, &root, 1) == 0) + if (ns && get_task_root(task, &root) == 0) ret = 0; put_task_struct(task); } @@ -1526,7 +1526,7 @@ static int do_proc_readlink(struct path *path, char __user *buffer, int buflen) if (!tmp) return -ENOMEM; - pathname = d_path(path, tmp, PAGE_SIZE); + pathname = d_path_with_unreachable(path, tmp, PAGE_SIZE); len = PTR_ERR(pathname); if (IS_ERR(pathname)) goto out; |