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| author | Kent Overstreet <kent.overstreet@linux.dev> | 2024-02-05 02:19:49 +0100 |
|---|---|---|
| committer | Kent Overstreet <kent.overstreet@linux.dev> | 2024-03-13 23:39:13 +0100 |
| commit | e017047fdb3a449f45d73ea4c4e94465090b93a1 (patch) | |
| tree | 9b0a3812d4b92b8956113b9d1d9f55526a9f4133 /fs/bcachefs/thread_with_file.h | |
| parent | bcachefs: kill kvpmalloc() (diff) | |
| download | linux-e017047fdb3a449f45d73ea4c4e94465090b93a1.tar.xz linux-e017047fdb3a449f45d73ea4c4e94465090b93a1.zip | |
bcachefs: thread_with_stdio: eliminate double buffering
The output buffer lock has to be a spinlock so that we can write to it
from interrupt context, so we can't use a direct copy_to_user; this
switches thread_with_file_read() to use fault_in_writeable() and
copy_to_user_nofault(), similar to how thread_with_file_write() works.
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
Diffstat (limited to 'fs/bcachefs/thread_with_file.h')
| -rw-r--r-- | fs/bcachefs/thread_with_file.h | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/fs/bcachefs/thread_with_file.h b/fs/bcachefs/thread_with_file.h index 05879c5048c8..b5098b52db70 100644 --- a/fs/bcachefs/thread_with_file.h +++ b/fs/bcachefs/thread_with_file.h @@ -20,7 +20,6 @@ int bch2_run_thread_with_file(struct thread_with_file *, struct thread_with_stdio { struct thread_with_file thr; struct stdio_redirect stdio; - DARRAY(char) output2; void (*exit)(struct thread_with_stdio *); }; |