Re: [PATCH] drop page cache of a single file

From: Andrew Morton <akpm@xxxxxxxx>
Date: Wed, 27 Dec 2006 19:49:59 -0800

On Thu, 28 Dec 2006 11:17:25 +0800
"Zhang, Yanmin" <yanmin_zhang@xxxxxxxxxxxxxxx> wrote:

Currently, by /proc/sys/vm/drop_caches, applications could drop pagecache,
slab(dentries and inodes), or both, but applications couldn't choose to
just drop the page cache of one file. An user of VOD (Video-On-Demand)
needs this capability to have more detailed control on page cache release.

The posix_fadvise() system call should be used for this. Probably in
combination with sys_sync_file_range().

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

Follow-Ups:
- Re: [PATCH] drop page cache of a single file
  - From: Fengguang Wu

References:
- [PATCH] drop page cache of a single file
  - From: Zhang, Yanmin

Prev by Date: PL2303 module
Next by Date: Re: Page alignment issue
Previous by thread: [PATCH] drop page cache of a single file
Next by thread: Re: [PATCH] drop page cache of a single file
Index(es):
- Date
- Thread