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authorAl Viro <viro@zeniv.linux.org.uk>2013-05-15 20:23:06 -0400
committerAl Viro <viro@zeniv.linux.org.uk>2013-06-29 12:46:48 +0400
commit5f99f4e79abc64ed9d93a4b0158b21c64ff7f478 (patch)
treebb76629861592bee919344521fb2d55ce866a17f /include/linux/fs.h
parent80886298c07234331458e963b5f9f57c68edd700 (diff)
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[readdir] switch dcache_readdir() users to ->iterate()
new helpers - dir_emit_dot(file, ctx, dentry), dir_emit_dotdot(file, ctx), dir_emit_dots(file, ctx). Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'include/linux/fs.h')
-rw-r--r--include/linux/fs.h39
1 files changed, 32 insertions, 7 deletions
diff --git a/include/linux/fs.h b/include/linux/fs.h
index b9641ae..40293a6 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -1511,12 +1511,6 @@ struct dir_context {
loff_t pos;
};
-static inline bool dir_emit(struct dir_context *ctx,
- const char *name, int namelen,
- u64 ino, unsigned type)
-{
- return ctx->actor(ctx, name, namelen, ctx->pos, ino, type) == 0;
-}
struct block_device_operations;
/* These macros are for out of kernel modules to test that
@@ -2537,7 +2531,7 @@ extern void iterate_supers_type(struct file_system_type *,
extern int dcache_dir_open(struct inode *, struct file *);
extern int dcache_dir_close(struct inode *, struct file *);
extern loff_t dcache_dir_lseek(struct file *, loff_t, int);
-extern int dcache_readdir(struct file *, void *, filldir_t);
+extern int dcache_readdir(struct file *, struct dir_context *);
extern int simple_setattr(struct dentry *, struct iattr *);
extern int simple_getattr(struct vfsmount *, struct dentry *, struct kstat *);
extern int simple_statfs(struct dentry *, struct kstatfs *);
@@ -2701,4 +2695,35 @@ static inline void inode_has_no_xattr(struct inode *inode)
inode->i_flags |= S_NOSEC;
}
+static inline bool dir_emit(struct dir_context *ctx,
+ const char *name, int namelen,
+ u64 ino, unsigned type)
+{
+ return ctx->actor(ctx, name, namelen, ctx->pos, ino, type) == 0;
+}
+static inline bool dir_emit_dot(struct file *file, struct dir_context *ctx)
+{
+ return ctx->actor(ctx, ".", 1, ctx->pos,
+ file->f_path.dentry->d_inode->i_ino, DT_DIR) == 0;
+}
+static inline bool dir_emit_dotdot(struct file *file, struct dir_context *ctx)
+{
+ return ctx->actor(ctx, "..", 2, ctx->pos,
+ parent_ino(file->f_path.dentry), DT_DIR) == 0;
+}
+static inline bool dir_emit_dots(struct file *file, struct dir_context *ctx)
+{
+ if (ctx->pos == 0) {
+ if (!dir_emit_dot(file, ctx))
+ return false;
+ ctx->pos = 1;
+ }
+ if (ctx->pos == 1) {
+ if (!dir_emit_dotdot(file, ctx))
+ return false;
+ ctx->pos = 2;
+ }
+ return true;
+}
+
#endif /* _LINUX_FS_H */