bcachefs: reduce stack usage in alloc_sectors_start()

with typical config options, variables in different inline functions
aren't sharing stack space - and these are slowpaths.

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>

diff --git a/fs/bcachefs/alloc_foreground.c b/fs/bcachefs/alloc_foreground.c
index 1a52c12c51ae60ade376dc87e639671d521a06bf..4341201deec3f2fe4b967ba15ddaf331d493c598 100644 (file)
--- a/fs/bcachefs/alloc_foreground.c
+++ b/fs/bcachefs/alloc_foreground.c
@@ -1104,7 +1104,7 @@ static inline bool too_many_writepoints(struct bch_fs *c, unsigned factor)
        return stranded * factor > free;
 }
 
-static bool try_increase_writepoints(struct bch_fs *c)
+static noinline bool try_increase_writepoints(struct bch_fs *c)
 {
        struct write_point *wp;
 
@@ -1117,7 +1117,7 @@ static bool try_increase_writepoints(struct bch_fs *c)
        return true;
 }
 
-static bool try_decrease_writepoints(struct btree_trans *trans, unsigned old_nr)
+static noinline bool try_decrease_writepoints(struct btree_trans *trans, unsigned old_nr)
 {
        struct bch_fs *c = trans->c;
        struct write_point *wp;