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| author | Andrew Morton <akpm@osdl.org> | 2006-07-10 04:45:31 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-07-10 13:24:25 -0700 |
| commit | 92eb7a2f28d551acedeb5752263267a64b1f5ddf (patch) | |
| tree | e77b0dee5598df8f44a6f57783a3344e2e4e98c1 /fs/file.c | |
| parent | 38e0e8c0550eaed1af48ec5ad9ddb8a25e8b04ae (diff) | |
| download | linux-3.10-92eb7a2f28d551acedeb5752263267a64b1f5ddf.tar.gz linux-3.10-92eb7a2f28d551acedeb5752263267a64b1f5ddf.tar.bz2 linux-3.10-92eb7a2f28d551acedeb5752263267a64b1f5ddf.zip | |
[PATCH] fix weird logic in alloc_fdtable()
There's a fairly obvious infinite loop in there.
Also, use roundup_pow_of_two() rather than open-coding stuff.
Cc: Eric Dumazet <dada1@cosmosbay.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'fs/file.c')
| -rw-r--r-- | fs/file.c | 10 |
1 files changed, 3 insertions, 7 deletions
diff --git a/fs/file.c b/fs/file.c index 55f4e702256..3f356086061 100644 --- a/fs/file.c +++ b/fs/file.c @@ -240,13 +240,9 @@ static struct fdtable *alloc_fdtable(int nr) if (!fdt) goto out; - nfds = 8 * L1_CACHE_BYTES; - /* Expand to the max in easy steps */ - while (nfds <= nr) { - nfds = nfds * 2; - if (nfds > NR_OPEN) - nfds = NR_OPEN; - } + nfds = max_t(int, 8 * L1_CACHE_BYTES, roundup_pow_of_two(nfds)); + if (nfds > NR_OPEN) + nfds = NR_OPEN; new_openset = alloc_fdset(nfds); new_execset = alloc_fdset(nfds); |