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| author | David Sterba <dsterba@suse.com> | 2016-04-11 19:40:08 +0300 |
|---|---|---|
| committer | David Sterba <dsterba@suse.com> | 2016-05-06 16:22:49 +0300 |
| commit | 6ff48ce06b07255a6459cd8b816a110971a81f00 (patch) | |
| tree | fdc345c80afdd3a45d603b7b2d42c3a0ecc18a82 /fs | |
| parent | 779bf3fefa835cb52a07457c8acac6f2f66f2493 (diff) | |
| download | linux-6ff48ce06b07255a6459cd8b816a110971a81f00.tar.xz | |
btrfs: send: use vmalloc only as fallback for send_buf
Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/btrfs/send.c | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/fs/btrfs/send.c b/fs/btrfs/send.c index ec433795fa71..b6e2c6ec4ee5 100644 --- a/fs/btrfs/send.c +++ b/fs/btrfs/send.c @@ -6028,10 +6028,13 @@ long btrfs_ioctl_send(struct file *mnt_file, void __user *arg_) sctx->clone_roots_cnt = arg->clone_sources_count; sctx->send_max_size = BTRFS_SEND_BUF_SIZE; - sctx->send_buf = vmalloc(sctx->send_max_size); + sctx->send_buf = kmalloc(sctx->send_max_size, GFP_KERNEL | __GFP_NOWARN); if (!sctx->send_buf) { - ret = -ENOMEM; - goto out; + sctx->send_buf = vmalloc(sctx->send_max_size); + if (!sctx->send_buf) { + ret = -ENOMEM; + goto out; + } } sctx->read_buf = vmalloc(BTRFS_SEND_READ_SIZE); @@ -6220,7 +6223,7 @@ out: fput(sctx->send_filp); vfree(sctx->clone_roots); - vfree(sctx->send_buf); + kvfree(sctx->send_buf); vfree(sctx->read_buf); name_cache_free(sctx); |