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fsnotify: replace igrab() with ihold() on attach connector 

We must have a reference on inode, so ihold is cheaper.

Link: https://lore.kernel.org/r/20210810151220.285179-2-amir73il@gmail.com
Reviewed-by: Matthew Bobrowski <repnop@google.com>
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
Signed-off-by: Jan Kara <jack@suse.cz>
This commit is contained in:
Amir Goldstein 2021-08-10 18:12:17 +03:00 committed by Jan Kara
parent af579beb66
commit 09ddbe69c9
1 changed files with 5 additions and 2 deletions
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7
fs/notify/mark.c
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@ -493,8 +493,11 @@ static int fsnotify_attach_connector_to_object(fsnotify_connp_t *connp,
conn->fsid.val[0] = conn->fsid.val[1] = 0;
conn->flags = 0;
}
if (conn->type == FSNOTIFY_OBJ_TYPE_INODE)
inode = igrab(fsnotify_conn_inode(conn));
if (conn->type == FSNOTIFY_OBJ_TYPE_INODE) {
inode = fsnotify_conn_inode(conn);
ihold(inode);
}
/*
* cmpxchg() provides the barrier so that readers of *connp can see
* only initialized structure