Commit Graph

133 Commits

Author SHA1 Message Date
Michael Kerrisk f279ad490b inotify.7: IN_ACCESS occurs only for files inside directories
IN_ACCESS does not occur for monitored directory.

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2014-08-29 19:11:35 +02:00
Michael Kerrisk e06fc20c37 inotify.7: IN_MODIFY is generated for files only (not monitored directories)
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2014-08-29 19:06:26 +02:00
Michael Kerrisk 7465ffa6bb inotify.7: IN_OPEN and IN_CLOSE_NOWRITE can also occur for directories
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2014-08-29 18:58:33 +02:00
Michael Kerrisk bea08fec7e adjtimex.2, bind.2, cacheflush.2, clone.2, fallocate.2, fanotify_init.2, fanotify_mark.2, flock.2, futex.2, getdents.2, getpriority.2, getrlimit.2, gettid.2, gettimeofday.2, ioprio_set.2, kexec_load.2, migrate_pages.2, modify_ldt.2, mount.2, move_pages.2, mprotect.2, msgop.2, nfsservctl.2, perf_event_open.2, pread.2, ptrace.2, recvmmsg.2, rename.2, restart_syscall.2, sched_setattr.2, send.2, shmop.2, shutdown.2, sigaction.2, signalfd.2, syscalls.2, timer_create.2, timerfd_create.2, tkill.2, vmsplice.2, wait.2, aio_init.3, confstr.3, exit.3, fmemopen.3, fopen.3, getaddrinfo.3, getauxval.3, getspnam.3, isalpha.3, isatty.3, mallinfo.3, malloc.3, mallopt.3, psignal.3, pthread_attr_setinheritsched.3, qecvt.3, queue.3, rtnetlink.3, strerror.3, strftime.3, toupper.3, towlower.3, towupper.3, initrd.4, locale.5, proc.5, bootparam.7, capabilities.7, ddp.7, fanotify.7, icmp.7, inotify.7, ip.7, ipv6.7, netdevice.7, netlink.7, path_resolution.7, rtld-audit.7, rtnetlink.7, sched.7, signal.7, socket.7, svipc.7, tcp.7, unix.7, ld.so.8: srcfix: Update FIXMEs
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2014-08-21 16:47:44 -05:00
Michael Kerrisk 3da9115905 inotify.7: Mention use of timeout when reading IN_MOVED_TO after IN_MOVED_FROM
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2014-07-21 07:33:17 +02:00
Michael Kerrisk 003798c744 inotify.7: Note that insertion of IN_MOVED_FROM+IN_MOVED_TO pair is not atomic
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2014-07-21 07:30:21 +02:00
Michael Kerrisk 18d92a146c inotify.7: Note that IN_ONLY_DIR can be used to avoid races
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2014-07-20 09:22:47 +02:00
Michael Kerrisk cbe0e64447 Removed trailing white space at end of lines 2014-07-08 16:36:37 +02:00
Michael Kerrisk c77eace5b1 iconv.1, ldd.1, connect.2, dup.2, epoll_ctl.2, eventfd.2, fallocate.2, fcntl.2, getitimer.2, inotify_add_watch.2, open.2, pipe.2, poll.2, sendmmsg.2, set_tid_address.2, shmop.2, signalfd.2, splice.2, syscalls.2, syslog.2, tee.2, vmsplice.2, ether_aton.3, mallopt.3, printf.3, profil.3, charmap.5, proc.5, epoll.7, inotify.7, libc.7, pipe.7, sched.7, socket.7, udplite.7, iconvconfig.8, ld.so.8: tstamp
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2014-07-08 16:14:48 +02:00
Michael Kerrisk e95b1911c4 inotify.7: Clarify with events are generated for watched directories
Really, with respect to watched directories, events fall into
three classes (not two, as was shown):

* Events that can be generated only for the watched directory.
* Events that can be generated only for objects that are inside
  the watched directory.
* Events that can be generated both for the watched directory
  and for objects inside the directory.

So, mark these three classes more clearly in the list of inotify
events.
dd

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2014-07-08 14:27:44 +02:00
Michael Kerrisk f070e9543a inotify.7: ffix
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2014-07-01 08:16:49 +02:00
Michael Kerrisk dcaff23c32 inotify.7: Clarify IN_ONESHOT explanation
Make it clearer that the target of monitoring is an i-node,
not a pathname.

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2014-06-29 09:48:45 +02:00
Michael Kerrisk 7747b84b82 inotify.7: Clarify description of IN_EXCL_UNLINK
Clarify the text a little, in particular making it clearer
that the target of a watch is an i-node (not a pathname).

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2014-06-28 07:52:48 +02:00
Michael Kerrisk 264545c62e inotify.7: wfix
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2014-06-28 07:49:06 +02:00
Michael Kerrisk 425ad621fc inotify.7: Make comment on 'mask' field more accurate
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2014-06-27 15:59:23 +02:00
Michael Kerrisk 2bbf2299df inotify.7: The watch descriptor reuse bug may be hard to hit in practice
Explain the circumstances in detail, indicating that the
bug may be very unlikely to occur in practice.

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2014-06-23 10:19:54 +02:00
Michael Kerrisk e530e367e2 inotify.7: Add further detail to the watch descriptor reuse bug
As well as inotify_rm_watch(), file deletion and unmounting a
filesystem can also cause a watch descriptor to be deleted.

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2014-06-23 09:43:46 +02:00
Michael Kerrisk 975d7f3751 inotify.7: Minor fixes to Heinrich Schuchardt's patch
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2014-06-23 09:41:32 +02:00
Heinrich Schuchardt ec976a53a3 inotify.7: BUGS: Note possible bug triggered by watch descriptor reuse
Watch descriptor IDs are returned by inotify_add_watch().
When calling inotify_rm_watch() an IN_IGNORE is placed on the
inotify queue pointing to the ID of the removed watch.

inotify_add_watchi() should not return a watch descriptor ID for
which events are still on the queue but should return an
unused ID.

Unfortunately, the existing Kernel code does not provide such a
guarantee.

Actually, in rare cases watch descriptor IDs are returned by
inotify_add_watch() for which events are still on the inotify
queue.

See https://bugzilla.kernel.org/show_bug.cgi?id=77111

Cowritten-by: Michael Kerrisk <mtk.manpages@gmail.com>
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2014-06-23 09:09:27 +02:00
Michael Kerrisk 2ef6778bce Removed trailing white space at end of lines 2014-05-28 16:00:50 +02:00
Heinrich Schuchardt 7a8110f6af inotify.7: munmap() does not generate inotify events
mmap() and msync() were already described as not leading to
inotify events. This patch adds munmap(). I created and executed
a test to verify this.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2014-05-26 10:16:05 +02:00
Michael Kerrisk 2483209a9c inotify.7: Minor changes to Heinrich Schuechardt's example program
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2014-05-24 23:07:08 +02:00
Heinrich Schuchardt ecd96f7c0e inotify.7: Add example program
This example of the usage of the inotify API shows the
usage of inotify_init1(2) and inotify_add_watch(2) as well
as polling and reading from the inotify file descriptor.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2014-05-24 22:42:29 +02:00
Michael Kerrisk d6fa0283d3 fallocate.2, open_by_handle_at.2, rename.2, syscalls.2, termios.3, inotify.7: tstamp
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2014-05-08 11:03:36 +02:00
Heinrich Schuchardt f75d27e6b0 inotify.7: SEE ALSO: add fanotify(7)
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2014-04-25 07:57:41 +02:00
David Prévot d2c3d8a829 inotify.7: Minor fixes
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2014-04-17 07:49:54 +02:00
Michael Kerrisk fa1d49a63c Removed trailing white space at end of lines 2014-04-06 08:47:56 +02:00
Michael Kerrisk e449e5f15a inotify.7: Inotify does not report events for mmap(2) and msync(2)
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2014-04-06 08:18:58 +02:00
Michael Kerrisk e226bed757 inotify.7: Inotify doesn't work for remote and pseudo filesystems
Reported-by: Eric W. Biederman <ebiederm@xmission.com>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2014-04-06 08:18:58 +02:00
Michael Kerrisk fa51f4d941 inotify.7: Remind reader of the cookie value in discussion of rename events
Reported-by: Jan Kara <jack@suse.cz>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2014-04-06 08:18:58 +02:00
Michael Kerrisk 6f1a495406 inotify.7: Minor rewording
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2014-04-06 08:18:58 +02:00
Michael Kerrisk 6b1cc2c9a4 inotify.7: Add paragraph on cache consistency checking
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2014-04-06 08:18:58 +02:00
Michael Kerrisk 67898fdfd0 inotify.7: Reorganize "Limits and caveats"
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2014-04-06 08:18:58 +02:00
Michael Kerrisk da977073d0 inotify.7: wfix
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2014-04-06 08:18:58 +02:00
Michael Kerrisk 85e179c5c2 inotify.7: Add text on dealing with rename() events
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2014-04-06 08:18:58 +02:00
Michael Kerrisk a79d28b202 inotify.7: Minor reorganization
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2014-04-06 08:18:58 +02:00
Michael Kerrisk 94d52c1529 inotify.7: Mention cache rebuilding to handle overflow events
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2014-04-06 08:18:58 +02:00
Michael Kerrisk 264276c6b0 inotify.7: Move discussion of application cache to start of "Limitations"
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2014-04-06 08:18:58 +02:00
Michael Kerrisk 356911f692 inotify.7: Rewrite introductory section
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2014-04-06 08:18:58 +02:00
Michael Kerrisk ff6e23973d inotify.7: Add subheading for reading from inotify file descriptor
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2014-04-06 08:18:58 +02:00
Michael Kerrisk 1a737afd5a inotify.7: symlink(2) can generate IN_CREATE
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2014-04-06 08:18:58 +02:00
Michael Kerrisk 415f63be17 inotify.7: Add some examples of events generated by various system calls
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2014-04-06 08:18:58 +02:00
Michael Kerrisk b01c936e4b inotify.7: Note that IN_UNMOUNT will be followed by an IN_IGNORED event
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2014-03-31 22:11:07 +02:00
Michael Kerrisk 39f43968d7 inotify.7: Note that IN_DELETE_SELF will be followed by IN_IGNORED
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2014-03-31 22:11:07 +02:00
Michael Kerrisk 7a64793b93 inotify.7: Add examples of syscalls that trigger IN_CREAT
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2014-03-31 22:11:07 +02:00
Michael Kerrisk b0e1ac43e0 inotify.7: Add examples of syscalls that trigger IN_ATTRIB
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2014-03-31 22:11:07 +02:00
Michael Kerrisk 79f8f40ccb inotify.7: Minor wording change
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2014-03-31 22:11:07 +02:00
Michael Kerrisk f54a125572 inotify.7: Add some examples of syscalls that trigger IN_MODIFY
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2014-03-31 22:11:07 +02:00
Michael Kerrisk f23fc716d5 inotify.7: Minor list reformatting
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2014-03-31 22:11:07 +02:00
Michael Kerrisk 49b07b8f8b inotify.7: wfix
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2014-03-31 22:11:07 +02:00