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[PATCH] proc: comment what proc_fill_cache does 

Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
Cc: Oleg Nesterov <oleg@tv-sign.ru>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
hifive-unleashed-5.1
Eric W. Biederman 2006-10-02 02:18:57 -07:00 committed by Linus Torvalds
parent 5e61feafa2
commit 1c0d04c9e4
1 changed files with 12 additions and 0 deletions
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12
fs/proc/base.c
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@ -1057,6 +1057,18 @@ static struct dentry_operations pid_dentry_operations =
typedef struct dentry *instantiate_t(struct inode *, struct dentry *, struct task_struct *, void *);
/*
* Fill a directory entry.
*
* If possible create the dcache entry and derive our inode number and
* file type from dcache entry.
*
* Since all of the proc inode numbers are dynamically generated, the inode
* numbers do not exist until the inode is cache. This means creating the
* the dcache entry in readdir is necessary to keep the inode numbers
* reported by readdir in sync with the inode numbers reported
* by stat.
*/
static int proc_fill_cache(struct file *filp, void *dirent, filldir_t filldir,
char *name, int len,
instantiate_t instantiate, struct task_struct *task, void *ptr)