Better documentation for ERESTARTSYS

2007-06-01T15:18:29Z

Add comment for errnos related to restart syscall to avoid the leakage of them to user programs. Signed-off-by: Satoru Takeuchi Cc: Oleg Nesterov Acked-by: Roland McGrath Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

[PATCH] AIO: retry infrastructure fixes and enhancements

2004-08-24T04:22:28Z

From: Daniel McNeil From: Chris Mason AIO: retry infrastructure fixes and enhancements Reorganises, comments and fixes the AIO retry logic. Fixes and enhancements include: - Split iocb setup and execution in io_submit (also fixes io_submit error reporting) - Use aio workqueue instead of keventd for retries - Default high level retry methods - Subtle use_mm/unuse_mm fix - Code commenting - Fix aio process hang on EINVAL (Daniel McNeil) - Hold the context lock across unuse_mm - Acquire task_lock in use_mm() - Allow fops to override the retry method with their own - Elevated ref count for AIO retries (Daniel McNeil) - set_fs needed when calling use_mm - Flush workqueue on __put_ioctx (Chris Mason) - Fix io_cancel to work with retries (Chris Mason) - Read-immediate option for socket/pipe retry support Note on default high-level retry methods support ================================================ High-level retry methods allows an AIO request to be executed as a series of non-blocking iterations, where each iteration retries the remaining part of the request from where the last iteration left off, by reissuing the corresponding AIO fop routine with modified arguments representing the remaining I/O. The retries are "kicked" via the AIO waitqueue callback aio_wake_function() which replaces the default wait queue entry used for blocking waits. The high level retry infrastructure is responsible for running the iterations in the mm context (address space) of the caller, and ensures that only one retry instance is active at a given time, thus relieving the fops themselves from having to deal with potential races of that sort. Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

Add "restart" system call, allowing system calls to restart after signal

2002-12-06T01:43:46Z

handling. Update x86 to use the new infrastructure.

add aio core

2002-08-21T13:43:30Z

Import changeset

2002-02-05T01:40:40Z

user/sven/linux.git/include/linux/errno.h, branch v3.2.45

Better documentation for ERESTARTSYS

[PATCH] AIO: retry infrastructure fixes and enhancements

Add "restart" system call, allowing system calls to restart after signal

add aio core

Import changeset