[PATCH] uml ubd driver: document some struct fields
Add documentation about some fields in struct ubd, whose meaning is non-obvious due to struct names (should change names altogether, I agree). Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it> Cc: Jeff Dike <jdike@addtoit.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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@ -150,8 +150,9 @@ static struct gendisk *fake_gendisk[MAX_DEV];
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static struct openflags global_openflags = OPEN_FLAGS;
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struct cow {
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/* This is the backing file, actually */
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/* backing file name */
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char *file;
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/* backing file fd */
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int fd;
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unsigned long *bitmap;
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unsigned long bitmap_len;
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@ -160,6 +161,8 @@ struct cow {
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};
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struct ubd {
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/* name (and fd, below) of the file opened for writing, either the
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* backing or the cow file. */
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char *file;
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int count;
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int fd;
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