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| author | Michael Kerrisk <mtk.manpages@gmail.com> | 2016-03-08 19:40:04 +0100 |
|---|---|---|
| committer | Michael Kerrisk <mtk.manpages@gmail.com> | 2016-03-08 20:07:32 +0100 |
| commit | 4e77145cca1992b8383f38a8f0460b5c9e5c175b (patch) | |
| tree | a7d8009bb7ae3b1c2585642b9b62c3e650900301 | |
| parent | 58a80cd4f00b2efd343b2602364752e788aa7efe (diff) | |
| download | man-pages-4e77145cca1992b8383f38a8f0460b5c9e5c175b.tar.gz | |
proc.5: Document inotify /proc/PID/fdinfo entries
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
| -rw-r--r-- | man5/proc.5 | 53 |
1 files changed, 40 insertions, 13 deletions
diff --git a/man5/proc.5 b/man5/proc.5 index a0890fd108..e2096499e5 100644 --- a/man5/proc.5 +++ b/man5/proc.5 @@ -723,19 +723,46 @@ and .BR SIGQUIT ; see .BR signal (7).) -.\" FIXME -.\" Certain file types include additional info; see -.\" Documentation/filesystems/proc.txt -.\" -.\" Especially interesting is this: -.\" -.\" commit ab49bdecc3ebb46ab661f5f05d5c5ea9606406c6 -.\" Author: Cyrill Gorcunov <gorcunov@openvz.org> -.\" Date: Mon Dec 17 16:05:06 2012 -0800 -.\" -.\" Basically, the /proc/PID/fdinfo/ entry for an inotify FD -.\" includes the file handles for all watched FDs -.\" + +For inotify file descriptors (see +.BR inotify (7)), +we see (since Linux 3.8) +the following fields: + +.in +4n +.nf +pos: 0 +flags: 00 +mnt_id: 11 +inotify wd:2 ino:7ef82a sdev:800001 mask:800afff ignored_mask:0 fhandle-bytes:8 fhandle-type:1 f_handle:2af87e00220ffd73 +inotify wd:1 ino:192627 sdev:800001 mask:800afff ignored_mask:0 fhandle-bytes:8 fhandle-type:1 f_handle:27261900802dfd73 +.fi +.in + +Each of the lines beginning with "inotify" displays information about +one file or directory that is being monitored. +The fields in this line are as follows: +.RS +.TP +.I wd +A watch descriptor number (in decimal). +.TP +.I ino +The inode number of the target file (in hexadecimal). +.TP +.I sdev +The ID of the device where the target file resides (in hexadecimal). +.TP +.I mask +The mask of events being monitored for the target file (in hexadecimal). +.RE +.IP +If the kernel was built with exportfs support, the path to the target +file is exposed as a file handle, via three hexadecimal fields: +.IR fhandle-bytes , +.IR fhandle-type , +and +.IR f_handle . .TP .IR /proc/[pid]/io " (since kernel 2.6.20)" .\" commit 7c3ab7381e79dfc7db14a67c6f4f3285664e1ec2 |