diff options
| author | Darrick J. Wong <darrick.wong@oracle.com> | 2017-03-06 11:58:20 -0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-10-08 10:14:20 +0200 |
| commit | 0185496a115dbdee8b2428541949217039222d84 (patch) | |
| tree | e690e942be8478f41cd7c32a21e061005b7b2143 /fs/xfs/kmem.c | |
| parent | 088b9a41b605079f253b99f4bba868eda89bc9fa (diff) | |
xfs: remove kmem_zalloc_greedy
[ Upstream commit 08b005f1333154ae5b404ca28766e0ffb9f1c150 ]
The sole remaining caller of kmem_zalloc_greedy is bulkstat, which uses
it to grab 1-4 pages for staging of inobt records. The infinite loop in
the greedy allocation function is causing hangs[1] in generic/269, so
just get rid of the greedy allocator in favor of kmem_zalloc_large.
This makes bulkstat somewhat more likely to ENOMEM if there's really no
pages to spare, but eliminates a source of hangs.
[1] http://lkml.kernel.org/r/20170301044634.rgidgdqqiiwsmfpj%40XZHOUW.usersys.redhat.com
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'fs/xfs/kmem.c')
| -rw-r--r-- | fs/xfs/kmem.c | 18 |
1 files changed, 0 insertions, 18 deletions
diff --git a/fs/xfs/kmem.c b/fs/xfs/kmem.c index 686ba6fb20dd..8067364c602f 100644 --- a/fs/xfs/kmem.c +++ b/fs/xfs/kmem.c @@ -24,24 +24,6 @@ #include "kmem.h" #include "xfs_message.h" -/* - * Greedy allocation. May fail and may return vmalloced memory. - */ -void * -kmem_zalloc_greedy(size_t *size, size_t minsize, size_t maxsize) -{ - void *ptr; - size_t kmsize = maxsize; - - while (!(ptr = vzalloc(kmsize))) { - if ((kmsize >>= 1) <= minsize) - kmsize = minsize; - } - if (ptr) - *size = kmsize; - return ptr; -} - void * kmem_alloc(size_t size, xfs_km_flags_t flags) { |