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Test Your Knowledge in Computers #570
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The C programming language allows you to pass a parameter to a function by providing its memory address instead of the value stored in it.
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skb_frag_address(9) [centos man page]

SKB_FRAG_ADDRESS(9)						 Linux Networking					       SKB_FRAG_ADDRESS(9)

NAME
skb_frag_address - gets the address of the data contained in a paged fragment SYNOPSIS
void * skb_frag_address(const skb_frag_t * frag); ARGUMENTS
frag the paged fragment buffer DESCRIPTION
Returns the address of the data within frag. The page must already be mapped. COPYRIGHT
Kernel Hackers Manual 3.10 June 2014 SKB_FRAG_ADDRESS(9)

Check Out this Related Man Page

vfragpg(8)						      System Manager's Manual							vfragpg(8)

NAME
vfragpg - prints a single header page of a frag file SYNOPSIS
/sbin/advfs/vfragpg special page_LBN OPERANDS
Specifies the block special device name, such as /dev/disk/dsk2c. Specifies the logical block number of the page. DESCRIPTION
The vfragpg command allows you to see the structure of a single header page in a frag file. Use showfile -x /usr/.tags/1 to locate the logical block number of the page. RESTRICTIONS
You must have root user privileges to access this command. EXAMPLES
The following example shows the headers for the frag file with logical block number 10672 on the device /dev/disk/dsk3a: # vfragpg /dev/disk/dsk3a 10672 self 0 nextFreeGrp -1 fragType 6 freefrgs 14 ver 1 frag on free list : 43, nextFree = 49 frag on free list : 49, nextFree = 55 frag on free list : 55, nextFree = 61 frag on free list : 61, nextFree = 67 frag on free list : 67, nextFree = 73 frag on free list : 73, nextFree = 79 frag on free list : 79, nextFree = 85 frag on free list : 85, nextFree = 91 frag on free list : 91, nextFree = 97 frag on free list : 97, nextFree = 103 frag on free list : 103, nextFree = 109 frag on free list : 109, nextFree = 115 frag on free list : 115, nextFree = 121 frag on free list : 121, nextFree = -1 # SEE ALSO
advfs(4), showfile(8), shfragbf(8) vfragpg(8)

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