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authorLinus Torvalds <torvalds@linux-foundation.org>2014-12-10 16:10:49 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2014-12-10 16:10:49 -0800
commitcbfe0de303a55ed96d8831c2d5f56f8131cd6612 (patch)
treeb327762303c6a015421e4077e7c713b8a47a5e0e /fs/notify
parent8322b6fddfd2cee41a7732284e5f04750511f4b2 (diff)
parentba00410b8131b23edfb0e09f8b6dd26c8eb621fb (diff)
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull VFS changes from Al Viro: "First pile out of several (there _definitely_ will be more). Stuff in this one: - unification of d_splice_alias()/d_materialize_unique() - iov_iter rewrite - killing a bunch of ->f_path.dentry users (and f_dentry macro). Getting that completed will make life much simpler for unionmount/overlayfs, since then we'll be able to limit the places sensitive to file _dentry_ to reasonably few. Which allows to have file_inode(file) pointing to inode in a covered layer, with dentry pointing to (negative) dentry in union one. Still not complete, but much closer now. - crapectomy in lustre (dead code removal, mostly) - "let's make seq_printf return nothing" preparations - assorted cleanups and fixes There _definitely_ will be more piles" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (63 commits) copy_from_iter_nocache() new helper: iov_iter_kvec() csum_and_copy_..._iter() iov_iter.c: handle ITER_KVEC directly iov_iter.c: convert copy_to_iter() to iterate_and_advance iov_iter.c: convert copy_from_iter() to iterate_and_advance iov_iter.c: get rid of bvec_copy_page_{to,from}_iter() iov_iter.c: convert iov_iter_zero() to iterate_and_advance iov_iter.c: convert iov_iter_get_pages_alloc() to iterate_all_kinds iov_iter.c: convert iov_iter_get_pages() to iterate_all_kinds iov_iter.c: convert iov_iter_npages() to iterate_all_kinds iov_iter.c: iterate_and_advance iov_iter.c: macros for iterating over iov_iter kill f_dentry macro dcache: fix kmemcheck warning in switch_names new helper: audit_file() nfsd_vfs_write(): use file_inode() ncpfs: use file_inode() kill f_dentry uses lockd: get rid of ->f_path.dentry->d_sb ...
Diffstat (limited to 'fs/notify')
-rw-r--r--fs/notify/fdinfo.c78
-rw-r--r--fs/notify/fdinfo.h4
-rw-r--r--fs/notify/fsnotify.c4
3 files changed, 36 insertions, 50 deletions
diff --git a/fs/notify/fdinfo.c b/fs/notify/fdinfo.c
index 9d7e2b9659c..6ffd220eb14 100644
--- a/fs/notify/fdinfo.c
+++ b/fs/notify/fdinfo.c
@@ -20,25 +20,24 @@
#if defined(CONFIG_INOTIFY_USER) || defined(CONFIG_FANOTIFY)
-static int show_fdinfo(struct seq_file *m, struct file *f,
- int (*show)(struct seq_file *m, struct fsnotify_mark *mark))
+static void show_fdinfo(struct seq_file *m, struct file *f,
+ void (*show)(struct seq_file *m,
+ struct fsnotify_mark *mark))
{
struct fsnotify_group *group = f->private_data;
struct fsnotify_mark *mark;
- int ret = 0;
mutex_lock(&group->mark_mutex);
list_for_each_entry(mark, &group->marks_list, g_list) {
- ret = show(m, mark);
- if (ret)
+ show(m, mark);
+ if (seq_has_overflowed(m))
break;
}
mutex_unlock(&group->mark_mutex);
- return ret;
}
#if defined(CONFIG_EXPORTFS)
-static int show_mark_fhandle(struct seq_file *m, struct inode *inode)
+static void show_mark_fhandle(struct seq_file *m, struct inode *inode)
{
struct {
struct file_handle handle;
@@ -52,71 +51,62 @@ static int show_mark_fhandle(struct seq_file *m, struct inode *inode)
ret = exportfs_encode_inode_fh(inode, (struct fid *)f.handle.f_handle, &size, 0);
if ((ret == FILEID_INVALID) || (ret < 0)) {
WARN_ONCE(1, "Can't encode file handler for inotify: %d\n", ret);
- return 0;
+ return;
}
f.handle.handle_type = ret;
f.handle.handle_bytes = size * sizeof(u32);
- ret = seq_printf(m, "fhandle-bytes:%x fhandle-type:%x f_handle:",
- f.handle.handle_bytes, f.handle.handle_type);
+ seq_printf(m, "fhandle-bytes:%x fhandle-type:%x f_handle:",
+ f.handle.handle_bytes, f.handle.handle_type);
for (i = 0; i < f.handle.handle_bytes; i++)
- ret |= seq_printf(m, "%02x", (int)f.handle.f_handle[i]);
-
- return ret;
+ seq_printf(m, "%02x", (int)f.handle.f_handle[i]);
}
#else
-static int show_mark_fhandle(struct seq_file *m, struct inode *inode)
+static void show_mark_fhandle(struct seq_file *m, struct inode *inode)
{
- return 0;
}
#endif
#ifdef CONFIG_INOTIFY_USER
-static int inotify_fdinfo(struct seq_file *m, struct fsnotify_mark *mark)
+static void inotify_fdinfo(struct seq_file *m, struct fsnotify_mark *mark)
{
struct inotify_inode_mark *inode_mark;
struct inode *inode;
- int ret = 0;
if (!(mark->flags & (FSNOTIFY_MARK_FLAG_ALIVE | FSNOTIFY_MARK_FLAG_INODE)))
- return 0;
+ return;
inode_mark = container_of(mark, struct inotify_inode_mark, fsn_mark);
inode = igrab(mark->i.inode);
if (inode) {
- ret = seq_printf(m, "inotify wd:%x ino:%lx sdev:%x "
- "mask:%x ignored_mask:%x ",
- inode_mark->wd, inode->i_ino,
- inode->i_sb->s_dev,
- mark->mask, mark->ignored_mask);
- ret |= show_mark_fhandle(m, inode);
- ret |= seq_putc(m, '\n');
+ seq_printf(m, "inotify wd:%x ino:%lx sdev:%x mask:%x ignored_mask:%x ",
+ inode_mark->wd, inode->i_ino, inode->i_sb->s_dev,
+ mark->mask, mark->ignored_mask);
+ show_mark_fhandle(m, inode);
+ seq_putc(m, '\n');
iput(inode);
}
-
- return ret;
}
-int inotify_show_fdinfo(struct seq_file *m, struct file *f)
+void inotify_show_fdinfo(struct seq_file *m, struct file *f)
{
- return show_fdinfo(m, f, inotify_fdinfo);
+ show_fdinfo(m, f, inotify_fdinfo);
}
#endif /* CONFIG_INOTIFY_USER */
#ifdef CONFIG_FANOTIFY
-static int fanotify_fdinfo(struct seq_file *m, struct fsnotify_mark *mark)
+static void fanotify_fdinfo(struct seq_file *m, struct fsnotify_mark *mark)
{
unsigned int mflags = 0;
struct inode *inode;
- int ret = 0;
if (!(mark->flags & FSNOTIFY_MARK_FLAG_ALIVE))
- return 0;
+ return;
if (mark->flags & FSNOTIFY_MARK_FLAG_IGNORED_SURV_MODIFY)
mflags |= FAN_MARK_IGNORED_SURV_MODIFY;
@@ -124,26 +114,22 @@ static int fanotify_fdinfo(struct seq_file *m, struct fsnotify_mark *mark)
if (mark->flags & FSNOTIFY_MARK_FLAG_INODE) {
inode = igrab(mark->i.inode);
if (!inode)
- goto out;
- ret = seq_printf(m, "fanotify ino:%lx sdev:%x "
- "mflags:%x mask:%x ignored_mask:%x ",
- inode->i_ino, inode->i_sb->s_dev,
- mflags, mark->mask, mark->ignored_mask);
- ret |= show_mark_fhandle(m, inode);
- ret |= seq_putc(m, '\n');
+ return;
+ seq_printf(m, "fanotify ino:%lx sdev:%x mflags:%x mask:%x ignored_mask:%x ",
+ inode->i_ino, inode->i_sb->s_dev,
+ mflags, mark->mask, mark->ignored_mask);
+ show_mark_fhandle(m, inode);
+ seq_putc(m, '\n');
iput(inode);
} else if (mark->flags & FSNOTIFY_MARK_FLAG_VFSMOUNT) {
struct mount *mnt = real_mount(mark->m.mnt);
- ret = seq_printf(m, "fanotify mnt_id:%x mflags:%x mask:%x "
- "ignored_mask:%x\n", mnt->mnt_id, mflags,
- mark->mask, mark->ignored_mask);
+ seq_printf(m, "fanotify mnt_id:%x mflags:%x mask:%x ignored_mask:%x\n",
+ mnt->mnt_id, mflags, mark->mask, mark->ignored_mask);
}
-out:
- return ret;
}
-int fanotify_show_fdinfo(struct seq_file *m, struct file *f)
+void fanotify_show_fdinfo(struct seq_file *m, struct file *f)
{
struct fsnotify_group *group = f->private_data;
unsigned int flags = 0;
@@ -169,7 +155,7 @@ int fanotify_show_fdinfo(struct seq_file *m, struct file *f)
seq_printf(m, "fanotify flags:%x event-flags:%x\n",
flags, group->fanotify_data.f_flags);
- return show_fdinfo(m, f, fanotify_fdinfo);
+ show_fdinfo(m, f, fanotify_fdinfo);
}
#endif /* CONFIG_FANOTIFY */
diff --git a/fs/notify/fdinfo.h b/fs/notify/fdinfo.h
index 556afda990e..9664c4904d6 100644
--- a/fs/notify/fdinfo.h
+++ b/fs/notify/fdinfo.h
@@ -10,11 +10,11 @@ struct file;
#ifdef CONFIG_PROC_FS
#ifdef CONFIG_INOTIFY_USER
-extern int inotify_show_fdinfo(struct seq_file *m, struct file *f);
+void inotify_show_fdinfo(struct seq_file *m, struct file *f);
#endif
#ifdef CONFIG_FANOTIFY
-extern int fanotify_show_fdinfo(struct seq_file *m, struct file *f);
+void fanotify_show_fdinfo(struct seq_file *m, struct file *f);
#endif
#else /* CONFIG_PROC_FS */
diff --git a/fs/notify/fsnotify.c b/fs/notify/fsnotify.c
index 89326acd456..41e39102743 100644
--- a/fs/notify/fsnotify.c
+++ b/fs/notify/fsnotify.c
@@ -63,14 +63,14 @@ void __fsnotify_update_child_dentry_flags(struct inode *inode)
spin_lock(&inode->i_lock);
/* run all of the dentries associated with this inode. Since this is a
* directory, there damn well better only be one item on this list */
- hlist_for_each_entry(alias, &inode->i_dentry, d_alias) {
+ hlist_for_each_entry(alias, &inode->i_dentry, d_u.d_alias) {
struct dentry *child;
/* run all of the children of the original inode and fix their
* d_flags to indicate parental interest (their parent is the
* original inode) */
spin_lock(&alias->d_lock);
- list_for_each_entry(child, &alias->d_subdirs, d_u.d_child) {
+ list_for_each_entry(child, &alias->d_subdirs, d_child) {
if (!child->d_inode)
continue;