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authorChristoph Hellwig <hch@lst.de>2009-11-21 20:28:52 +0900
committerOGAWA Hirofumi <hirofumi@mail.parknet.co.jp>2009-11-21 20:36:52 +0900
commit681142f9211b23e6aa2984259d38b76d7bdc05a8 (patch)
treecad526094c576b74eb12b0cdb1b497bbb4765128 /include
parenta8a8a669ea13d792296737505adc43ccacf3a648 (diff)
downloadlinux-2.6.34-ux500-681142f9211b23e6aa2984259d38b76d7bdc05a8.tar.gz
fat: make discard a mount option
Currently shipping discard capable SSDs and arrays have rather sub-optimal implementations of the command and can the use of it can cause massive slowdowns. Make issueing these commands option as it's already in btrfs and gfs2. Signed-off-by: Christoph Hellwig <hch@lst.de> [hirofumi@mail.parknet.co.jp: tweaks, and add "discard" to fat_show_options] Signed-off-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
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