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Meelap Shah c2f1a551de knfsd: nfsd4: vary maximum delegation limit based on RAM size ... Our original NFSv4 delegation policy was to give out a read delegation on any open when it was possible to. Since the lifetime of a delegation isn't limited to that of an open, a client may quite reasonably hang on to a delegation as long as it has the inode cached. This becomes an obvious problem the first time a client's inode cache approaches the size of the server's total memory. Our first quick solution was to add a hard-coded limit. This patch makes a mild incremental improvement by varying that limit according to the server's total memory size, allowing at most 4 delegations per megabyte of RAM. My quick back-of-the-envelope calculation finds that in the worst case (where every delegation is for a different inode), a delegation could take about 1.5K, which would make the worst case usage about 6% of memory. The new limit works out to be about the same as the old on a 1-gig server. [akpm@linux-foundation.org: Don't needlessly bloat vmlinux] [akpm@linux-foundation.org: Make it right for highmem machines] Signed-off-by: "J. Bruce Fields" <bfields@citi.umich.edu> Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		18 years ago
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Kconfig	CONFIG_BOUNCE to avoid useless inclusion of bounce buffer logic	18 years ago
Makefile	CONFIG_BOUNCE to avoid useless inclusion of bounce buffer logic	18 years ago
allocpercpu.c	Slab allocators: Replace explicit zeroing with __GFP_ZERO	18 years ago
backing-dev.c	…
bootmem.c	…
bounce.c	…
fadvise.c	…
filemap.c	…
filemap.h	…
filemap_xip.c	…
fremap.c	…
highmem.c	…
hugetlb.c	MM: Make needlessly global hugetlb_no_page() static.	18 years ago
internal.h	…
madvise.c	…
memory.c	…
memory_hotplug.c	…
mempolicy.c	…
mempool.c	Slab allocators: Replace explicit zeroing with __GFP_ZERO	18 years ago
migrate.c	…
mincore.c	…
mlock.c	…
mmap.c	…
mmzone.c	…
mprotect.c	…
mremap.c	…
msync.c	…
nommu.c	…
oom_kill.c	…
page-writeback.c	fs: introduce some page/buffer invariants	18 years ago
page_alloc.c	knfsd: nfsd4: vary maximum delegation limit based on RAM size	18 years ago
page_io.c	…
pdflush.c	Freezer: make kernel threads nonfreezable by default	18 years ago
prio_tree.c	…
quicklist.c	…
readahead.c	…
rmap.c	…
shmem.c	knfsd: exportfs: add exportfs.h header	18 years ago
shmem_acl.c	…
slab.c	kallsyms: make KSYM_NAME_LEN include space for trailing '\0'	18 years ago
slob.c	…
slub.c	SLUB: Fix CONFIG_SLUB_DEBUG use for CONFIG_NUMA	18 years ago
sparse.c	…
swap.c	…
swap_state.c	…
swapfile.c	…
thrash.c	…
tiny-shmem.c	…
truncate.c	fs: introduce some page/buffer invariants	18 years ago
util.c	…
vmalloc.c	Slab allocators: Replace explicit zeroing with __GFP_ZERO	18 years ago
vmscan.c	Freezer: make kernel threads nonfreezable by default	18 years ago
vmstat.c	…