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-rw-r--r--fs/fat/inode.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/fs/fat/inode.c b/fs/fat/inode.c
index 6b74d09..de0004f 100644
--- a/fs/fat/inode.c
+++ b/fs/fat/inode.c
@@ -202,9 +202,9 @@ static sector_t _fat_bmap(struct address_space *mapping, sector_t block)
sector_t blocknr;
/* fat_get_cluster() assumes the requested blocknr isn't truncated. */
- mutex_lock(&mapping->host->i_mutex);
+ down_read(&mapping->host->i_alloc_sem);
blocknr = generic_block_bmap(mapping, block, fat_get_block);
- mutex_unlock(&mapping->host->i_mutex);
+ up_read(&mapping->host->i_alloc_sem);
return blocknr;
}
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