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Message-Id: <1289065631-2256-1-git-send-email-abogani@texware.it> Date: Sat, 6 Nov 2010 18:47:08 +0100 From: Alessio Igor Bogani <abogani@...ware.it> To: Jan Kara <jack@...e.cz>, Arnd Bergmann <arnd@...db.de> Cc: Christoph Hellwig <hch@...radead.org>, Tim Bird <tim.bird@...sony.com>, LKML <linux-kernel@...r.kernel.org>, Alessio Igor Bogani <abogani@...ware.it> Subject: [PATCH 1/4] udf: Add missed protection for s_lvid_dirty As reported in udf_sb.h the udf_sb_infoi's structure member s_lvid_dirty should be protected by s_alloc_mutex. Added that mutex on a couple of places where it miss. This work was supported by a hardware donation from the CE Linux Forum. Signed-off-by: Alessio Igor Bogani <abogani@...ware.it> --- fs/udf/super.c | 4 ++++ 1 files changed, 4 insertions(+), 0 deletions(-) diff --git a/fs/udf/super.c b/fs/udf/super.c index 4a5c7c6..c05834e 100644 --- a/fs/udf/super.c +++ b/fs/udf/super.c @@ -1789,7 +1789,9 @@ static void udf_open_lvid(struct super_block *sb) lvid->descTag.tagChecksum = udf_tag_checksum(&lvid->descTag); mark_buffer_dirty(bh); + mutex_lock(&sbi->s_alloc_mutex); sbi->s_lvid_dirty = 0; + mutex_unlock(&sbi->s_alloc_mutex); } static void udf_close_lvid(struct super_block *sb) @@ -1821,7 +1823,9 @@ static void udf_close_lvid(struct super_block *sb) lvid->descTag.tagChecksum = udf_tag_checksum(&lvid->descTag); mark_buffer_dirty(bh); + mutex_lock(&sbi->s_alloc_mutex); sbi->s_lvid_dirty = 0; + mutex_unlock(&sbi->s_alloc_mutex); } static void udf_sb_free_bitmap(struct udf_bitmap *bitmap) -- 1.7.0.4 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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