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Date: Sat, 15 Feb 2014 13:40:26 -0800 From: ebiederm@...ssion.com (Eric W. Biederman) To: Al Viro <viro@...iv.linux.org.uk> Cc: "Serge E. Hallyn" <serge@...lyn.com>, Linux-Fsdevel <linux-fsdevel@...r.kernel.org>, Kernel Mailing List <linux-kernel@...r.kernel.org>, Andy Lutomirski <luto@...capital.net>, Rob Landley <rob@...dley.net>, Linus Torvalds <torvalds@...ux-foundation.org>, Miklos Szeredi <miklos@...redi.hu>, Christoph Hellwig <hch@...radead.org>, Karel Zak <kzak@...hat.com>, "J. Bruce Fields" <bfields@...ldses.org> Subject: [PATCH 10/11] 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. Signed-off-by: "Eric W. Biederman" <ebiederm@...ssion.com> --- fs/ceph/dir.c | 1 - fs/proc/base.c | 4 ---- fs/proc/fd.c | 2 -- 3 files changed, 0 insertions(+), 7 deletions(-) diff --git a/fs/ceph/dir.c b/fs/ceph/dir.c index 6da4df84ba30..ecd2402739e2 100644 --- a/fs/ceph/dir.c +++ b/fs/ceph/dir.c @@ -1052,7 +1052,6 @@ 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; diff --git a/fs/proc/base.c b/fs/proc/base.c index 51507065263b..aa62b37f1303 100644 --- a/fs/proc/base.c +++ b/fs/proc/base.c @@ -1654,7 +1654,6 @@ int pid_revalidate(struct dentry *dentry, unsigned int flags) put_task_struct(task); return 1; } - d_drop(dentry); return 0; } @@ -1791,9 +1790,6 @@ out: put_task_struct(task); out_notask: - if (status <= 0) - d_drop(dentry); - return status; } diff --git a/fs/proc/fd.c b/fs/proc/fd.c index 985ea881b5bc..7e4f04ccab31 100644 --- a/fs/proc/fd.c +++ b/fs/proc/fd.c @@ -127,8 +127,6 @@ static int tid_fd_revalidate(struct dentry *dentry, unsigned int flags) } put_task_struct(task); } - - d_drop(dentry); return 0; } -- 1.7.5.4 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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