From 0dff0b1b12e06190820ac7959140cc82a9c6d5bd Mon Sep 17 00:00:00 2001 From: Andrew Morton Date: Wed, 6 Aug 2003 21:13:19 -0700 Subject: [PATCH] [PATCH] reiserfs: fix problem when fs is out of space From: Oleg Drokin This patch fixes various bad stuff that happens when you write to full or almost full reiserfs filesystem. --- fs/reiserfs/bitmap.c | 4 ++-- fs/reiserfs/file.c | 2 ++ 2 files changed, 4 insertions(+), 2 deletions(-) diff --git a/fs/reiserfs/bitmap.c b/fs/reiserfs/bitmap.c index a786187eedf02..0550e20ecc52c 100644 --- a/fs/reiserfs/bitmap.c +++ b/fs/reiserfs/bitmap.c @@ -910,11 +910,11 @@ void reiserfs_release_claimed_blocks( int reiserfs_can_fit_pages ( struct super_block *sb /* superblock of filesystem to estimate space */ ) { - b_blocknr_t space; + int space; spin_lock(&REISERFS_SB(sb)->bitmap_lock); space = (SB_FREE_BLOCKS(sb) - REISERFS_SB(sb)->reserved_blocks) >> ( PAGE_CACHE_SHIFT - sb->s_blocksize_bits); spin_unlock(&REISERFS_SB(sb)->bitmap_lock); - return space; + return space>0?space:0; } diff --git a/fs/reiserfs/file.c b/fs/reiserfs/file.c index c6b25b1d1789d..f238ff8ab1cb4 100644 --- a/fs/reiserfs/file.c +++ b/fs/reiserfs/file.c @@ -1085,6 +1085,8 @@ ssize_t reiserfs_file_write( struct file *file, /* the file we are going to writ // 100% of disk space anyway. write_bytes = min_t(int, count, inode->i_sb->s_blocksize - (pos & (inode->i_sb->s_blocksize - 1))); num_pages = 1; + // No blocks were claimed before, so do it now. + reiserfs_claim_blocks_to_be_allocated(inode->i_sb, 1 << (PAGE_CACHE_SHIFT - inode->i_blkbits)); } /* Prepare for writing into the region, read in all the -- 2.53.0