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fff9289b21
This patch fixes typos in various Documentation txts. This patch addresses some words starting with the letters 'D'-'E'. Signed-off-by: Matt LaPlante <kernel1@cyberdogtech.com> Signed-off-by: Adrian Bunk <bunk@stusta.de>
14 lines
787 B
Text
14 lines
787 B
Text
There is a potential for deadlock when allocating a struct sk_buff for
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data that needs to be written out to aoe storage. If the data is
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being written from a dirty page in order to free that page, and if
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there are no other pages available, then deadlock may occur when a
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free page is needed for the sk_buff allocation. This situation has
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not been observed, but it would be nice to eliminate any potential for
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deadlock under memory pressure.
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Because ATA over Ethernet is not fragmented by the kernel's IP code,
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the destructor member of the struct sk_buff is available to the aoe
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driver. By using a mempool for allocating all but the first few
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sk_buffs, and by registering a destructor, we should be able to
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efficiently allocate sk_buffs without introducing any potential for
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deadlock.
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