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Date: Tue, 29 Jun 2021 15:10:26 -0400 From: Gabriel Krisman Bertazi <krisman@...labora.com> To: amir73il@...il.com Cc: djwong@...nel.org, tytso@....edu, david@...morbit.com, jack@...e.com, dhowells@...hat.com, khazhy@...gle.com, linux-fsdevel@...r.kernel.org, linux-ext4@...r.kernel.org, Gabriel Krisman Bertazi <krisman@...labora.com>, kernel@...labora.com Subject: [PATCH v3 06/15] fsnotify: Add helper to detect overflow_event Similarly to fanotify_is_perm_event and friends, provide a helper predicate to say whether a mask is of an overflow event. Suggested-by: Amir Goldstein <amir73il@...il.com> Reviewed-by: Amir Goldstein <amir73il@...il.com> Signed-off-by: Gabriel Krisman Bertazi <krisman@...labora.com> --- fs/notify/fanotify/fanotify.h | 3 ++- include/linux/fsnotify_backend.h | 5 +++++ 2 files changed, 7 insertions(+), 1 deletion(-) diff --git a/fs/notify/fanotify/fanotify.h b/fs/notify/fanotify/fanotify.h index fd125a949187..2e005b3a75f2 100644 --- a/fs/notify/fanotify/fanotify.h +++ b/fs/notify/fanotify/fanotify.h @@ -328,7 +328,8 @@ static inline struct path *fanotify_event_path(struct fanotify_event *event) */ static inline bool fanotify_is_hashed_event(u32 mask) { - return !fanotify_is_perm_event(mask) && !(mask & FS_Q_OVERFLOW); + return !(fanotify_is_perm_event(mask) || + fsnotify_is_overflow_event(mask)); } static inline unsigned int fanotify_event_hash_bucket( diff --git a/include/linux/fsnotify_backend.h b/include/linux/fsnotify_backend.h index c4473b467c28..f9e2c6cd0f7d 100644 --- a/include/linux/fsnotify_backend.h +++ b/include/linux/fsnotify_backend.h @@ -495,6 +495,11 @@ static inline void fsnotify_queue_overflow(struct fsnotify_group *group) fsnotify_add_event(group, group->overflow_event, NULL, NULL); } +static inline bool fsnotify_is_overflow_event(u32 mask) +{ + return mask & FS_Q_OVERFLOW; +} + static inline bool fsnotify_notify_queue_is_empty(struct fsnotify_group *group) { assert_spin_locked(&group->notification_lock); -- 2.32.0
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