Al Viro
164f4064ca
keep iocb_flags() result cached in struct file
...
* calculate at the time we set FMODE_OPENED (do_dentry_open() for normal
opens, alloc_file() for pipe()/socket()/etc.)
* update when handling F_SETFL
* keep in a new field - file->f_iocb_flags; since that thing is needed only
before the refcount reaches zero, we can put it into the same anon union
where ->f_rcuhead and ->f_llist live - those are used only after refcount
reaches zero.
Reviewed-by: Christian Brauner (Microsoft) <brauner@kernel.org >
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk >
2022-06-10 16:10:23 -04:00
..
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