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| author | Cyrill Gorcunov <gorcunov@openvz.org> | 2012-12-18 01:05:16 +0100 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2012-12-18 02:15:28 +0100 |
| commit | e6dbcafb744ab94a94142a6e721e16330397fad8 (patch) | |
| tree | 6ef896651e962003960186fa516b2696ff293b22 | |
| parent | docs: add documentation about /proc/<pid>/fdinfo/<fd> output (diff) | |
| download | linux-e6dbcafb744ab94a94142a6e721e16330397fad8.tar.xz linux-e6dbcafb744ab94a94142a6e721e16330397fad8.zip | |
fs, fanotify: add @mflags field to fanotify output
The kernel keeps FAN_MARK_IGNORED_SURV_MODIFY bit separately from
fsnotify_mark::mask|ignored_mask thus put it in @mflags (mark flags)
field so the user-space reader will be able to detect if such bit were
used on mark creation procedure.
| pos: 0
| flags: 04002
| fanotify flags:10 event-flags:0
| fanotify mnt_id:12 mflags:40 mask:38 ignored_mask:40000003
| fanotify ino:4f969 sdev:800013 mflags:0 mask:3b ignored_mask:40000000 fhandle-bytes:8 fhandle-type:1 f_handle:69f90400c275b5b4
Signed-off-by: Cyrill Gorcunov <gorcunov@openvz.org>
Cc: Pavel Emelyanov <xemul@parallels.com>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Andrey Vagin <avagin@openvz.org>
Cc: Al Viro <viro@ZenIV.linux.org.uk>
Cc: Alexey Dobriyan <adobriyan@gmail.com>
Cc: James Bottomley <jbottomley@parallels.com>
Cc: "Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com>
Cc: Matthew Helsley <matt.helsley@gmail.com>
Cc: "J. Bruce Fields" <bfields@fieldses.org>
Cc: Tvrtko Ursulin <tvrtko.ursulin@onelan.co.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| -rw-r--r-- | fs/notify/fdinfo.c | 14 |
1 files changed, 9 insertions, 5 deletions
diff --git a/fs/notify/fdinfo.c b/fs/notify/fdinfo.c index cb996179abfd..514c4b81483d 100644 --- a/fs/notify/fdinfo.c +++ b/fs/notify/fdinfo.c @@ -111,29 +111,33 @@ int inotify_show_fdinfo(struct seq_file *m, struct file *f) static int 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; + if (mark->flags & FSNOTIFY_MARK_FLAG_IGNORED_SURV_MODIFY) + mflags |= FAN_MARK_IGNORED_SURV_MODIFY; + 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 " - "mask:%x ignored_mask:%x ", + "mflags:%x mask:%x ignored_mask:%x ", inode->i_ino, inode->i_sb->s_dev, - mark->mask, mark->ignored_mask); + mflags, mark->mask, mark->ignored_mask); ret |= show_mark_fhandle(m, inode); ret |= 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 mask:%x " - "ignored_mask:%x\n", - mnt->mnt_id, mark->mask, mark->ignored_mask); + 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); } out: return ret; |