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f2fs: use kvmalloc, if kmalloc is failed

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One report says memalloc failure during mount.

 (unwind_backtrace) from [<c010cd4c>] (show_stack+0x10/0x14)
 (show_stack) from [<c049c6b8>] (dump_stack+0x8c/0xa0)
 (dump_stack) from [<c024fcf0>] (warn_alloc+0xc4/0x160)
 (warn_alloc) from [<c0250218>] (__alloc_pages_nodemask+0x3f4/0x10d0)
 (__alloc_pages_nodemask) from [<c0270450>] (kmalloc_order_trace+0x2c/0x120)
 (kmalloc_order_trace) from [<c03fa748>] (build_node_manager+0x35c/0x688)
 (build_node_manager) from [<c03de494>] (f2fs_fill_super+0xf0c/0x16cc)
 (f2fs_fill_super) from [<c02a5864>] (mount_bdev+0x15c/0x188)
 (mount_bdev) from [<c03da624>] (f2fs_mount+0x18/0x20)
 (f2fs_mount) from [<c02a68b8>] (mount_fs+0x158/0x19c)
 (mount_fs) from [<c02c3c9c>] (vfs_kern_mount+0x78/0x134)
 (vfs_kern_mount) from [<c02c76ac>] (do_mount+0x474/0xca4)
 (do_mount) from [<c02c8264>] (SyS_mount+0x94/0xbc)
 (SyS_mount) from [<c0108180>] (ret_fast_syscall+0x0/0x48)

Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
This commit is contained in:
Jaegeuk Kim
2018-12-13 18:38:33 -08:00
parent af56b48708
commit 5222595d09
11 changed files with 76 additions and 70 deletions
Download Patch File Download Diff File Expand all files Collapse all files

10
fs/f2fs/node.c
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@@ -3116,17 +3116,17 @@ void f2fs_destroy_node_manager(struct f2fs_sb_info *sbi)
for (i = 0; i < nm_i->nat_blocks; i++)
kvfree(nm_i->free_nid_bitmap[i]);
kfree(nm_i->free_nid_bitmap);
kvfree(nm_i->free_nid_bitmap);
}
kvfree(nm_i->free_nid_count);
kfree(nm_i->nat_bitmap);
kfree(nm_i->nat_bits);
kvfree(nm_i->nat_bitmap);
kvfree(nm_i->nat_bits);
#ifdef CONFIG_F2FS_CHECK_FS
kfree(nm_i->nat_bitmap_mir);
kvfree(nm_i->nat_bitmap_mir);
#endif
sbi->nm_info = NULL;
kfree(nm_i);
kvfree(nm_i);
}
int __init f2fs_create_node_manager_caches(void)