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| author | Eric W. Biederman <ebiederm@xmission.com> | 2006-10-02 02:18:57 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-10-02 07:57:25 -0700 |
| commit | 1c0d04c9e44f4a248335c33d2be7c7f7b06ff359 (patch) | |
| tree | 6eb913a14a86311158e9a36cc28cd765b179b023 /fs/proc/base.c | |
| parent | 5e61feafa2c641c2a013ba94eec56c411011cc94 (diff) | |
| download | lwn-1c0d04c9e44f4a248335c33d2be7c7f7b06ff359.tar.gz lwn-1c0d04c9e44f4a248335c33d2be7c7f7b06ff359.zip | |
[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>
Diffstat (limited to 'fs/proc/base.c')
| -rw-r--r-- | fs/proc/base.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/fs/proc/base.c b/fs/proc/base.c index 433a01d2e992..a317eb2c4442 100644 --- a/fs/proc/base.c +++ b/fs/proc/base.c @@ -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) |