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vfs: Remove d_drop calls from d_revalidate implementations 

Now that d_invalidate always succeeds it is not longer necessary or
desirable to hard code d_drop calls into filesystem specific
d_revalidate implementations.

Remove the unnecessary d_drop calls and rely on d_invalidate
to drop the dentries.  Using d_invalidate ensures that paths
to mount points will not be dropped.

Reviewed-by: Miklos Szeredi <miklos@szeredi.hu>
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Eric W. Biederman 2014-02-13 10:19:10 -08:00 committed by Al Viro
parent 5542aa2fa7
commit c143c2333c
3 changed files with 0 additions and 7 deletions
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1
fs/ceph/dir.c
View File

@ -1069,7 +1069,6 @@ static int ceph_d_revalidate(struct dentry *dentry, unsigned int flags)
ceph_dentry_lru_touch(dentry);
} else {
ceph_dir_clear_complete(dir);
d_drop(dentry);
}
iput(dir);
return valid;

4
fs/proc/base.c
View File

@ -1590,7 +1590,6 @@ int pid_revalidate(struct dentry *dentry, unsigned int flags)
put_task_struct(task);
return 1;
}
d_drop(dentry);
return 0;
}
@ -1727,9 +1726,6 @@ out:
put_task_struct(task);
out_notask:
if (status <= 0)
d_drop(dentry);
return status;
}

2
fs/proc/fd.c
View File

@ -129,8 +129,6 @@ static int tid_fd_revalidate(struct dentry *dentry, unsigned int flags)
}
put_task_struct(task);
}
d_drop(dentry);
return 0;
}