dongjiuzhu1 09a9611ae9 fs/inode: using rwsem lock as inode_lock to avoid deadlock ... Example: When executing "df -h" on Core A to view mount information, this process will traverse inode nodes, thereby holding the inode_lock. Since the inode type of the mount point may be rpmsgfs, it will fetch statfs information from another Core B. Meanwhile, rcS on Core B needs to obtain file information from Core A, which will be achieved by fetching stat information through rpmsgfs. When this message arrives at Core A, a deadlock can occur between Core A's rptun ap and nsh task. However, both of these places involve read operations only, thus a reader-writer lock can be utilized to prevent such a deadlock. Signed-off-by: dongjiuzhu1 <dongjiuzhu1@xiaomi.com>		2024-10-02 01:56:46 +08:00
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CMakeLists.txt	build: add initial cmake build system	2023-07-08 13:50:48 +08:00
Kconfig	mqueue: Rename FS_MQUEUE_MPATH to FS_MQUEUE_VFS_PATH	2022-02-05 23:58:01 +01:00
Make.defs	Author: Gregory Nutt: update licenses to Apache	2021-02-05 12:15:56 -03:00
mq_close.c	sourcefiles: Fix relative path in file header	2021-03-09 23:18:28 +08:00
mq_open.c	fs/inode: using rwsem lock as inode_lock to avoid deadlock	2024-10-02 01:56:46 +08:00
mq_unlink.c	fs/inode: using rwsem lock as inode_lock to avoid deadlock	2024-10-02 01:56:46 +08:00
mqueue.h	fs: Remove the unnecessary Kconfig definition	2022-02-05 23:58:01 +01:00