linux

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Imran Khan 06fb473613 kernfs: change kernfs_rename_lock into a read-write lock.

kernfs_rename_lock protects a node's ->parent and thus kernfs topology.
Thus it can be used in cases that rely on a stable kernfs topology.
Change it to a read-write lock for better scalability.

Suggested by: Al Viro <viro@zeniv.linux.org.uk>

Reviewed-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Signed-off-by: Imran Khan <imran.f.khan@oracle.com>
Link: https://lore.kernel.org/r/20230309110932.2889010-4-imran.f.khan@oracle.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2023-03-29 12:23:45 +02:00

dir.c

kernfs: change kernfs_rename_lock into a read-write lock.

2023-03-29 12:23:45 +02:00

file.c

kernfs: Use a per-fs rwsem to protect per-fs list of kernfs_super_info.

2023-03-29 12:23:45 +02:00

inode.c

kernfs: Introduce separate rwsem to protect inode attributes.

2023-03-29 12:23:45 +02:00

Kconfig

treewide: Add SPDX license identifier - Makefile/Kconfig