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[PATCH] swap: update swapfile i_sem comment
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Update swap extents comment: nowadays we guard with S_SWAPFILE not i_sem.

Signed-off-by: Hugh Dickins <hugh@veritas.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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Hugh Dickins authored and Linus Torvalds committed Sep 5, 2005
1 parent fd4fd5a commit b0d9bcd
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2 changes: 1 addition & 1 deletion mm/swapfile.c
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Original file line number Diff line number Diff line change
Expand Up @@ -926,7 +926,7 @@ add_swap_extent(struct swap_info_struct *sis, unsigned long start_page,
* requirements, they are simply tossed out - we will never use those blocks
* for swapping.
*
* For S_ISREG swapfiles we hold i_sem across the life of the swapon. This
* For S_ISREG swapfiles we set S_SWAPFILE across the life of the swapon. This
* prevents root from shooting her foot off by ftruncating an in-use swapfile,
* which will scribble on the fs.
*
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