Commit72fe12d

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Add check for 4Gb segment overflow in CFS

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Original file line number	Diff line number	Diff line change
`@@ -1900,6 +1900,10 @@ FileWrite(File file, char *buffer, int amount)`
`1900`	`1900`	`* because we want to write all updated pages sequentially`
`1901`	`1901`	`*/`
`1902`	`1902`	`pos=cfs_alloc_page(map,CFS_INODE_SIZE(inode),compressedSize);`
	`1903`	`+if (pos>pos+compressedSize) {`
	`1904`	`+elog(ERROR,"CFS segment file exceeed 4Gb limit");`
	`1905`	`+}`
	`1906`	`+`
`1903`	`1907`	`inode=CFS_INODE(compressedSize,pos);`
`1904`	`1908`	`buffer=compressedBuffer;`
`1905`	`1909`	`amount=compressedSize;`

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