From a94733d0bc630edaedc6ca156752dd5a7cb82521 Mon Sep 17 00:00:00 2001 From: Josef Bacik Date: Mon, 11 Jul 2011 10:47:06 -0400 Subject: Btrfs: use find_or_create_page instead of grab_cache_page grab_cache_page will use mapping_gfp_mask(), which for all inodes is set to GFP_HIGHUSER_MOVABLE. So instead use find_or_create_page in all cases where we need GFP_NOFS so we don't deadlock. Thanks, Signed-off-by: Josef Bacik --- fs/btrfs/file.c | 3 ++- fs/btrfs/free-space-cache.c | 4 ++-- fs/btrfs/inode.c | 2 +- fs/btrfs/ioctl.c | 4 ++-- fs/btrfs/relocation.c | 3 ++- 5 files changed, 9 insertions(+), 7 deletions(-) (limited to 'fs/btrfs') diff --git a/fs/btrfs/file.c b/fs/btrfs/file.c index fa4ef18b66b..bd6bbb877ff 100644 --- a/fs/btrfs/file.c +++ b/fs/btrfs/file.c @@ -1081,7 +1081,8 @@ static noinline int prepare_pages(struct btrfs_root *root, struct file *file, again: for (i = 0; i < num_pages; i++) { - pages[i] = grab_cache_page(inode->i_mapping, index + i); + pages[i] = find_or_create_page(inode->i_mapping, index + i, + GFP_NOFS); if (!pages[i]) { faili = i - 1; err = -ENOMEM; diff --git a/fs/btrfs/free-space-cache.c b/fs/btrfs/free-space-cache.c index fd7fa2a74f0..6377713f639 100644 --- a/fs/btrfs/free-space-cache.c +++ b/fs/btrfs/free-space-cache.c @@ -307,7 +307,7 @@ int __load_free_space_cache(struct btrfs_root *root, struct inode *inode, if (!num_entries && !num_bitmaps) break; - page = grab_cache_page(inode->i_mapping, index); + page = find_or_create_page(inode->i_mapping, index, GFP_NOFS); if (!page) goto free_cache; @@ -594,7 +594,7 @@ int __btrfs_write_out_cache(struct btrfs_root *root, struct inode *inode, * know and don't freak out. */ while (index < num_pages) { - page = grab_cache_page(inode->i_mapping, index); + page = find_or_create_page(inode->i_mapping, index, GFP_NOFS); if (!page) { int i; diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c index 4a137308374..2bf4d2b97d5 100644 --- a/fs/btrfs/inode.c +++ b/fs/btrfs/inode.c @@ -3398,7 +3398,7 @@ static int btrfs_truncate_page(struct address_space *mapping, loff_t from) ret = -ENOMEM; again: - page = grab_cache_page(mapping, index); + page = find_or_create_page(mapping, index, GFP_NOFS); if (!page) { btrfs_delalloc_release_space(inode, PAGE_CACHE_SIZE); goto out; diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c index a3c4751e07d..09c9a8d26ee 100644 --- a/fs/btrfs/ioctl.c +++ b/fs/btrfs/ioctl.c @@ -867,8 +867,8 @@ again: /* step one, lock all the pages */ for (i = 0; i < num_pages; i++) { struct page *page; - page = grab_cache_page(inode->i_mapping, - start_index + i); + page = find_or_create_page(inode->i_mapping, + start_index + i, GFP_NOFS); if (!page) break; diff --git a/fs/btrfs/relocation.c b/fs/btrfs/relocation.c index 086b1e6b861..41d76c60876 100644 --- a/fs/btrfs/relocation.c +++ b/fs/btrfs/relocation.c @@ -2955,7 +2955,8 @@ static int relocate_file_extent_cluster(struct inode *inode, page_cache_sync_readahead(inode->i_mapping, ra, NULL, index, last_index + 1 - index); - page = grab_cache_page(inode->i_mapping, index); + page = find_or_create_page(inode->i_mapping, index, + GFP_NOFS); if (!page) { btrfs_delalloc_release_metadata(inode, PAGE_CACHE_SIZE); -- cgit v1.2.3-70-g09d2