From: David Woodhouse Date: Thu, 7 Aug 2008 15:19:43 +0000 (-0400) Subject: Btrfs: Change TestSetPageLocked() to trylock_page() X-Git-Tag: v2.6.29-rc1~27^2~9^2~55^2~56^2~30^2~57 X-Git-Url: http://www.pilppa.org/gitweb/gitweb.cgi?a=commitdiff_plain;h=2db04966ae9a3eeb57f28df9aac4e77d5b287cb1;p=linux-2.6-omap-h63xx.git Btrfs: Change TestSetPageLocked() to trylock_page() Add backwards compatibility in compat.h Signed-off-by: David Woodhouse --- compat.h | 3 +++ extent_io.c | 3 ++- 2 files changed, 5 insertions(+), 1 deletions(-) Signed-off-by: Chris Mason --- diff --git a/fs/btrfs/compat.h b/fs/btrfs/compat.h index d39a768e65f..b3349a66999 100644 --- a/fs/btrfs/compat.h +++ b/fs/btrfs/compat.h @@ -1,6 +1,9 @@ #ifndef _COMPAT_H_ #define _COMPAT_H_ +#if LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,26) +#define trylock_page(page) (!TestSetPageLocked(page)) +#endif /* * Even if AppArmor isn't enabled, it still has different prototypes. diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c index 1cf4baba434..f46f88620c7 100644 --- a/fs/btrfs/extent_io.c +++ b/fs/btrfs/extent_io.c @@ -14,6 +14,7 @@ #include #include "extent_io.h" #include "extent_map.h" +#include "compat.h" /* temporary define until extent_map moves out of btrfs */ struct kmem_cache *btrfs_cache_create(const char *name, size_t size, @@ -3055,7 +3056,7 @@ int read_extent_buffer_pages(struct extent_io_tree *tree, for (i = start_i; i < num_pages; i++) { page = extent_buffer_page(eb, i); if (!wait) { - if (TestSetPageLocked(page)) + if (!trylock_page(page)) goto unlock_exit; } else { lock_page(page);