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flags field. Updates to the atomic flags are performed using the atomic ops on the containing word, do not require any vm lock to be held, and are non-blocking. The vm_page_aflag_set(9) and vm_page_aflag_clear(9) functions are provided to modify afalgs. Document the changes to flags field to only require the page lock. Introduce vm_page_reference(9) function to provide a stable KPI and KBI for filesystems like tmpfs and zfs which need to mark a page as referenced. Reviewed by: alc, attilio Tested by: marius, flo (sparc64); andreast (powerpc, powerpc64) Approved by: re (bz) |
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| .. | ||
| tmpfs_fifoops.c | ||
| tmpfs_fifoops.h | ||
| tmpfs_subr.c | ||
| tmpfs_vfsops.c | ||
| tmpfs_vnops.c | ||
| tmpfs_vnops.h | ||
| tmpfs.h | ||