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| author | Al Viro <viro@zeniv.linux.org.uk> | 2022-05-22 17:38:11 +0200 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2022-06-10 22:10:23 +0200 |
| commit | 164f4064ca81eefcea29f7f5dcf394f92be1d0c0 (patch) | |
| tree | 5275b76d52a540bb1e9c91118e6c9510f71d3b2e /fs/open.c | |
| parent | iocb: delay evaluation of IS_SYNC(...) until we want to check IOCB_DSYNC (diff) | |
| download | linux-164f4064ca81eefcea29f7f5dcf394f92be1d0c0.tar.xz linux-164f4064ca81eefcea29f7f5dcf394f92be1d0c0.zip | |
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>
Diffstat (limited to 'fs/open.c')
| -rw-r--r-- | fs/open.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/fs/open.c b/fs/open.c index 1d57fbde2feb..d80441a0bf17 100644 --- a/fs/open.c +++ b/fs/open.c @@ -862,6 +862,7 @@ static int do_dentry_open(struct file *f, f->f_mode |= FMODE_CAN_ODIRECT; f->f_flags &= ~(O_CREAT | O_EXCL | O_NOCTTY | O_TRUNC); + f->f_iocb_flags = iocb_flags(f); file_ra_state_init(&f->f_ra, f->f_mapping->host->i_mapping); |