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| author | Ilya Dryomov <idryomov@gmail.com> | 2024-12-07 17:33:25 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2025-01-02 10:32:00 +0100 |
| commit | d41fa58fca6f55608133c6e6077c87118f785d1b (patch) | |
| tree | 208bfe0bf93eab4654d6ca0740ef08a9a6d421cc /fs | |
| parent | 44e518abbb498075ae85c7d1d1a503a6bb05ea2d (diff) | |
| download | linux-d41fa58fca6f55608133c6e6077c87118f785d1b.tar.gz linux-d41fa58fca6f55608133c6e6077c87118f785d1b.tar.bz2 linux-d41fa58fca6f55608133c6e6077c87118f785d1b.zip | |
ceph: allocate sparse_ext map only for sparse reads
[ Upstream commit 18d44c5d062b97b97bb0162d9742440518958dc1 ]
If mounted with sparseread option, ceph_direct_read_write() ends up
making an unnecessarily allocation for O_DIRECT writes.
Fixes: 03bc06c7b0bd ("ceph: add new mount option to enable sparse reads")
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Reviewed-by: Alex Markuze <amarkuze@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/ceph/file.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/ceph/file.c b/fs/ceph/file.c index 5233bbab8a76..a03b11cf7887 100644 --- a/fs/ceph/file.c +++ b/fs/ceph/file.c @@ -1455,7 +1455,7 @@ ceph_direct_read_write(struct kiocb *iocb, struct iov_iter *iter, } op = &req->r_ops[0]; - if (sparse) { + if (!write && sparse) { extent_cnt = __ceph_sparse_read_ext_count(inode, size); ret = ceph_alloc_sparse_ext_map(op, extent_cnt); if (ret) { |