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Date: Thu, 4 Dec 2014 05:43:03 +0100 From: Lino Sanfilippo <LinoSanfilippo@....de> To: eparis@...hat.com, jack@...e.cz Cc: linux-kernel@...r.kernel.org, linux-fsdevel@...r.kernel.org, Lino Sanfilippo <LinoSanfilippo@....de> Subject: [PATCH v2 2/3] fanotify: dont recalculate a marks mask if only the ignored mask changed If removing bits from a marks ignored mask, the concerning inodes/vfsmounts mask is not affected. So dont recalculate it. Signed-off-by: Lino Sanfilippo <LinoSanfilippo@....de> Reviewed-by: Jan Kara <jack@...e.cz> --- fs/notify/fanotify/fanotify_user.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/fs/notify/fanotify/fanotify_user.c b/fs/notify/fanotify/fanotify_user.c index ba31055..ddc33fb 100644 --- a/fs/notify/fanotify/fanotify_user.c +++ b/fs/notify/fanotify/fanotify_user.c @@ -487,15 +487,15 @@ static __u32 fanotify_mark_remove_from_mask(struct fsnotify_mark *fsn_mark, unsigned int flags, int *destroy) { - __u32 oldmask; + __u32 oldmask = 0; spin_lock(&fsn_mark->lock); if (!(flags & FAN_MARK_IGNORED_MASK)) { oldmask = fsn_mark->mask; fsnotify_set_mark_mask_locked(fsn_mark, (oldmask & ~mask)); } else { - oldmask = fsn_mark->ignored_mask; - fsnotify_set_mark_ignored_mask_locked(fsn_mark, (oldmask & ~mask)); + __u32 tmask = fsn_mark->ignored_mask & ~mask; + fsnotify_set_mark_ignored_mask_locked(fsn_mark, tmask); } *destroy = !(fsn_mark->mask | fsn_mark->ignored_mask); spin_unlock(&fsn_mark->lock); -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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