Unverified Commit 30ef9a20 authored by Laveesh Bansal's avatar Laveesh Bansal Committed by Christian Brauner
Browse files

docs: clarify that dirtytime_expire_seconds=0 disables writeback 



Document that setting vm.dirtytime_expire_seconds to zero disables
periodic dirtytime writeback, matching the behavior of the related
dirty_writeback_centisecs sysctl which already documents this.

Signed-off-by: default avatarLaveesh Bansal <laveeshb@laveeshbansal.com>
Link: https://patch.msgid.link/20260106145059.543282-3-laveeshb@laveeshbansal.com


Reviewed-by: default avatarJan Kara <jack@suse.cz>
Signed-off-by: default avatarChristian Brauner <brauner@kernel.org>
parent 543467d6

Documentation/admin-guide/sysctl/vm.rst

+2 −0
Original line number Diff line number Diff line
@@ -231,6 +231,8 @@ eventually gets pushed out to disk. This tunable is used to define when dirty 
inode is old enough to be eligible for writeback by the kernel flusher threads.

And, it is also used as the interval to wakeup dirtytime_writeback thread.



Setting this to zero disables periodic dirtytime writeback.





dirty_writeback_centisecs

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