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| author | David Chinner <dgc@sgi.com> | 2007-02-10 18:34:56 +1100 |
|---|---|---|
| committer | Tim Shimmin <tes@sgi.com> | 2007-02-10 18:34:56 +1100 |
| commit | 7989cb8ef5dbc1411d3be48218c7b25ef6e71699 (patch) | |
| tree | 607efa745911951a30712de44a837c1df952bd3a /fs/xfs/linux-2.6/xfs_buf.c | |
| parent | 5e6a07dfe404cd4d8494d842b54706cb007fa04b (diff) | |
| download | lwn-7989cb8ef5dbc1411d3be48218c7b25ef6e71699.tar.gz lwn-7989cb8ef5dbc1411d3be48218c7b25ef6e71699.zip | |
[XFS] Keep stack usage down for 4k stacks by using noinline.
gcc-4.1 and more recent aggressively inline static functions which
increases XFS stack usage by ~15% in critical paths. Prevent this from
occurring by adding noinline to the STATIC definition.
Also uninline some functions that are too large to be inlined and were
causing problems with CONFIG_FORCED_INLINING=y.
Finally, clean up all the different users of inline, __inline and
__inline__ and put them under one STATIC_INLINE macro. For debug kernels
the STATIC_INLINE macro uninlines those functions.
SGI-PV: 957159
SGI-Modid: xfs-linux-melb:xfs-kern:27585a
Signed-off-by: David Chinner <dgc@sgi.com>
Signed-off-by: David Chatterton <chatz@sgi.com>
Signed-off-by: Tim Shimmin <tes@sgi.com>
Diffstat (limited to 'fs/xfs/linux-2.6/xfs_buf.c')
| -rw-r--r-- | fs/xfs/linux-2.6/xfs_buf.c | 24 |
1 files changed, 12 insertions, 12 deletions
diff --git a/fs/xfs/linux-2.6/xfs_buf.c b/fs/xfs/linux-2.6/xfs_buf.c index 168eecd8127e..e2bea6a661f0 100644 --- a/fs/xfs/linux-2.6/xfs_buf.c +++ b/fs/xfs/linux-2.6/xfs_buf.c @@ -34,13 +34,13 @@ #include <linux/backing-dev.h> #include <linux/freezer.h> -STATIC kmem_zone_t *xfs_buf_zone; -STATIC kmem_shaker_t xfs_buf_shake; +static kmem_zone_t *xfs_buf_zone; +static kmem_shaker_t xfs_buf_shake; STATIC int xfsbufd(void *); STATIC int xfsbufd_wakeup(int, gfp_t); STATIC void xfs_buf_delwri_queue(xfs_buf_t *, int); -STATIC struct workqueue_struct *xfslogd_workqueue; +static struct workqueue_struct *xfslogd_workqueue; struct workqueue_struct *xfsdatad_workqueue; #ifdef XFS_BUF_TRACE @@ -139,7 +139,7 @@ page_region_mask( return mask; } -STATIC inline void +STATIC_INLINE void set_page_region( struct page *page, size_t offset, @@ -151,7 +151,7 @@ set_page_region( SetPageUptodate(page); } -STATIC inline int +STATIC_INLINE int test_page_region( struct page *page, size_t offset, @@ -171,9 +171,9 @@ typedef struct a_list { struct a_list *next; } a_list_t; -STATIC a_list_t *as_free_head; -STATIC int as_list_len; -STATIC DEFINE_SPINLOCK(as_lock); +static a_list_t *as_free_head; +static int as_list_len; +static DEFINE_SPINLOCK(as_lock); /* * Try to batch vunmaps because they are costly. @@ -1085,7 +1085,7 @@ xfs_buf_iostart( return status; } -STATIC __inline__ int +STATIC_INLINE int _xfs_buf_iolocked( xfs_buf_t *bp) { @@ -1095,7 +1095,7 @@ _xfs_buf_iolocked( return 0; } -STATIC __inline__ void +STATIC_INLINE void _xfs_buf_ioend( xfs_buf_t *bp, int schedule) @@ -1426,8 +1426,8 @@ xfs_free_bufhash( /* * buftarg list for delwrite queue processing */ -STATIC LIST_HEAD(xfs_buftarg_list); -STATIC DEFINE_SPINLOCK(xfs_buftarg_lock); +LIST_HEAD(xfs_buftarg_list); +static DEFINE_SPINLOCK(xfs_buftarg_lock); STATIC void xfs_register_buftarg( |