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fsnotify: use helpers to access data by data_type

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Create helpers to access path and inode from different data types.

Link: https://lore.kernel.org/r/20200319151022.31456-5-amir73il@gmail.com
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
Signed-off-by: Jan Kara <jack@suse.cz>
This commit is contained in:
Amir Goldstein
2020-03-19 17:10:12 +02:00
committed by Jan Kara
parent a1aae0570a
commit aa93bdc550
6 changed files with 48 additions and 46 deletions
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5
fs/notify/fsnotify.c
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@@ -318,6 +318,7 @@ static void fsnotify_iter_next(struct fsnotify_iter_info *iter_info)
int fsnotify(struct inode *to_tell, __u32 mask, const void *data, int data_is,
const struct qstr *file_name, u32 cookie)
{
const struct path *path = fsnotify_data_path(data, data_is);
struct fsnotify_iter_info iter_info = {};
struct super_block *sb = to_tell->i_sb;
struct mount *mnt = NULL;
@@ -325,8 +326,8 @@ int fsnotify(struct inode *to_tell, __u32 mask, const void *data, int data_is,
int ret = 0;
__u32 test_mask = (mask & ALL_FSNOTIFY_EVENTS);
if (data_is == FSNOTIFY_EVENT_PATH) {
mnt = real_mount(((const struct path *)data)->mnt);
if (path) {
mnt = real_mount(path->mnt);
mnt_or_sb_mask |= mnt->mnt_fsnotify_mask;
}
/* An event "on child" is not intended for a mount/sb mark */