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fanotify: allow users to set an ignored_mask

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Change the sys_fanotify_mark() system call so users can set ignored_masks
on inodes.  Remember, if a user new sets a real mask, and only sets ignored
masks, the ignore will never be pinned in memory.  Thus ignored_masks can
be lost under memory pressure and the user may again get events they
previously thought were ignored.

Signed-off-by: Eric Paris <eparis@redhat.com>
This commit is contained in:
Eric Paris
2009-12-17 21:24:33 -05:00
parent 32a4df13b8
commit b9e4e3bd04
2 changed files with 39 additions and 19 deletions
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4
include/linux/fanotify.h
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@ -30,12 +30,14 @@
#define FAN_MARK_DONT_FOLLOW 0x00000004
#define FAN_MARK_ONLYDIR 0x00000008
#define FAN_MARK_MOUNT 0x00000010
#define FAN_MARK_IGNORED_MASK 0x00000020
#define FAN_ALL_MARK_FLAGS (FAN_MARK_ADD |\
FAN_MARK_REMOVE |\
FAN_MARK_DONT_FOLLOW |\
FAN_MARK_ONLYDIR |\
FAN_MARK_MOUNT)
FAN_MARK_MOUNT |\
FAN_MARK_IGNORED_MASK)
/*
* All of the events - we build the list by hand so that we can add flags in