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authorChao Yu <yuchao0@huawei.com>2018-05-30 00:20:41 +0800
committerJaegeuk Kim <jaegeuk@kernel.org>2018-05-31 11:31:53 -0700
commit4d57b86dd86404fd8bb4f87d277d5a86a7fe537e (patch)
tree6ad79aca10e807b05daf891b2472642e2e941002 /fs/f2fs/shrinker.c
parent2e79d951ffbd57cd7f2d0aae715b9435ba8e7d8a (diff)
f2fs: clean up symbol namespace
As Ted reported: "Hi, I was looking at f2fs's sources recently, and I noticed that there is a very large number of non-static symbols which don't have a f2fs prefix. There's well over a hundred (see attached below). As one example, in fs/f2fs/dir.c there is: unsigned char get_de_type(struct f2fs_dir_entry *de) This function is clearly only useful for f2fs, but it has a generic name. This means that if any other file system tries to have the same symbol name, there will be a symbol conflict and the kernel would not successfully build. It also means that when someone is looking f2fs sources, it's not at all obvious whether a function such as read_data_page(), invalidate_blocks(), is a generic kernel function found in the fs, mm, or block layers, or a f2fs specific function. You might want to fix this at some point. Hopefully Kent's bcachefs isn't similarly using genericly named functions, since that might cause conflicts with f2fs's functions --- but just as this would be a problem that we would rightly insist that Kent fix, this is something that we should have rightly insisted that f2fs should have fixed before it was integrated into the mainline kernel. acquire_orphan_inode add_ino_entry add_orphan_inode allocate_data_block allocate_new_segments alloc_nid alloc_nid_done alloc_nid_failed available_free_memory ...." This patch adds "f2fs_" prefix for all non-static symbols in order to: a) avoid conflict with other kernel generic symbols; b) to indicate the function is f2fs specific one instead of generic one; Reported-by: Theodore Ts'o <tytso@mit.edu> Signed-off-by: Chao Yu <yuchao0@huawei.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Diffstat (limited to 'fs/f2fs/shrinker.c')
-rw-r--r--fs/f2fs/shrinker.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/fs/f2fs/shrinker.c b/fs/f2fs/shrinker.c
index 0b5664a1a6cc..36cfd816c160 100644
--- a/fs/f2fs/shrinker.c
+++ b/fs/f2fs/shrinker.c
@@ -109,11 +109,11 @@ unsigned long f2fs_shrink_scan(struct shrinker *shrink,
/* shrink clean nat cache entries */
if (freed < nr)
- freed += try_to_free_nats(sbi, nr - freed);
+ freed += f2fs_try_to_free_nats(sbi, nr - freed);
/* shrink free nids cache entries */
if (freed < nr)
- freed += try_to_free_nids(sbi, nr - freed);
+ freed += f2fs_try_to_free_nids(sbi, nr - freed);
spin_lock(&f2fs_list_lock);
p = p->next;